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Record 1 of 271
Author(s): Kanjanaput, W (Kanjanaput, Wittawat); Limkumnerd, S (Limkumnerd, Surachate); Chatraphorn, P (Chatraphorn,
Patcha)
Title: Growth instability due to lattice-induced topological currents in limited-mobility epitaxial growth models
Source: PHYSICAL REVIEW E, 82 (4): Art. No. 041607 Part 1 OCT 28 2010
Language: English
Document Type: Article
KeyWords Plus: MOLECULAR-BEAM EPITAXY; STEP-EDGE DIFFUSION; MOUND FORMATION; SLOPE SELECTION;
THIN-FILMS; COARSENING DYNAMICS; SURFACE-MORPHOLOGY; SCALE-INVARIANCE; CRYSTAL SURFACES;
KINETIC GROWTH
Abstract: The energetically driven Ehrlich-Schwoebel barrier had been generally accepted as the primary cause of the growth
instability in the form of quasiregular moundlike structures observed on the surface of thin film grown via molecular-beam epitaxy
(MBE) technique. Recently the second mechanism of mound formation was proposed in terms of a topologically induced flux of
particles originating from the line tension of the step edges which form the contour lines around a mound. Through large-scale
simulations of MBE growth on a variety of crystalline lattice planes using limited-mobility, solid-on-solid models introduced by
Wolf-Villain and Das Sarma-Tamborenea in 2 + 1 dimensions, we show that there exists a topological uphill particle current with
strong dependence on specific lattice crystalline structure. Without any energetically induced barriers, our simulations produce
spectacular mounds very similar, in some cases, to what have been observed in many recent MBE experiments. On a lattice where
these currents cease to exist, the surface appears to be scale invariant, statistically rough as predicted by the conventional
continuum growth equation.
Addresses: [Kanjanaput, Wittawat] Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330, Thailand; CHE, Thailand Ctr
Excellence Phys, Res Ctr Thin Film Phys, Bangkok 10400, Thailand
Reprint Address: Kanjanaput, W, Chulalongkorn Univ, Dept Phys, Fac Sci, Phayathai Rd, Bangkok 10330, Thailand.
E-mail Address: [email protected]; [email protected]; [email protected]
Funding Acknowledgement:
Funding Agency
Grant Number
Thailand Center of Excellence in Physics
CU Graduate School
Thailand Research Fund
MRG5230121
Development and Promotion of Science and Technology
The authors would like to acknowledge fundings from Thailand Center of Excellence in Physics and CU Graduate School Thesis
Grant. S. L. received additional funding from the Thailand Research Fund Grant No. MRG5230121 and W. K. from the
Development and Promotion of Science and Technology Talents Projects.
Cited Reference Count: 57
Times Cited: 0
Publisher: AMER PHYSICAL SOC
Publisher Address: ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN: 1539-3755
Article Number: 041607
DOI: 10.1103/PhysRevE.82.041607
29-char Source Abbrev.: PHYS REV E
ISO Source Abbrev.: Phys. Rev. E
Source Item Page Count: 9
Subject Category: Physics, Fluids & Plasmas; Physics, Mathematical
ISI Document Delivery No.: 672JU
Record 2 of 271
Author(s): Niamnont, N (Niamnont, Nakorn); Mungkarndee, R (Mungkarndee, Radeemada); Techakriengkrai, I (Techakriengkrai,
Ittipon); Rashatasakhon, P (Rashatasakhon, Paitoon); Sukwattanasinitt, M (Sukwattanasinitt, Mongkol)
1 of 87
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Title: Protein discrimination by fluorescent sensor array constituted of variously charged dendritic phenylene-ethynylene
fluorophores
Source: BIOSENSORS & BIOELECTRONICS, 26 (2): 863-867 OCT 15 2010
Language: English
Author Keywords: Dendrimer; Fluorescence; Principal component analysis; Protein identification; Sensor array
KeyWords Plus: CONJUGATED POLYMERS; CHEMICAL SENSORS; SPECTROSCOPY; RECOGNITION;
CLASSIFICATION; IDENTIFICATION; NANOPARTICLE; PLATFORMS; RECEPTORS; COMPLEXES
Abstract: A protein fluorescent sensor array based on variously charged dendritic fluorophores is developed. The variation of
charge is achieved by different combinations of cationic trimethylammonium, anionic carboxylate and non-ionic methyl ester or
N,N-dimethylamino on the peripheries of the fluorophores. Nine phenylene-ethynylene dendritic fluorophores, seven zeroth
generation bearing charges varied from -3 to +3 and two first generation bearing -6 and +6 charges, are synthesized from
triiodotriphenylamine through series of Sonogashira coupling. In phosphate buffer saline pH 7.4, five out of these nine compounds
fluorogenically response to eight protein analytes distinctively. The data set of fluorescent intensities obtained from 5
fluorophores x 8 proteins x 9 replicated measurements can be statistically sorted into eight clusters corresponding to each protein
by principal component analysis (PCA). Factorial discriminant analysis (FDA) cross-validation is applied to locate the optimum
detection wavelength and reduce the number of sensing elements from nine to two with 100% discriminating accuracy. The
method described should be generally practical for the development of electronic tongue for protein related food analysis and
medical diagnosis. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Niamnont, Nakorn; Rashatasakhon, Paitoon; Sukwattanasinitt, Mongkol] Chulalongkorn Univ, Organ Synth Res Unit,
Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Mungkarndee, Radeemada] Chulalongkorn Univ, Program Biotechnol, Fac Sci,
Bangkok 10330, Thailand; [Techakriengkrai, Ittipon] Ramkhamhang Univ, Dept Food Technol, Fac Sci, Bangkok 10240, Thailand
Reprint Address: Sukwattanasinitt, M, Chulalongkorn Univ, Organ Synth Res Unit, Dept Chem, Fac Sci, Bangkok 10330,
Thailand.
E-mail Address: [email protected]
Funding Agency
Grant Number
National Nanotechnology Center, National Science and Technology Development Agency, Thailand
(NANOTEC, NSTDA)
NN-B-22FN9-10-52-06
Thailand Research Fund (TRF)
Thai Government
TKK2555
SP2
Center for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University
This study is granted by National Nanotechnology Center, National Science and Technology Development Agency, Thailand
(NANOTEC, NSTDA Project NN-B-22-FN9-10-52-06) and the Thailand Research Fund (TRF). This work is part of the
Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture supported by the Thai
Government Stimulus Package 2 (TKK2555, SP2). We would also like to thank Center for Petroleum, Petrochemicals and
Advanced Materials, Chulalongkorn University for financial support to students.
Times Cited: 0
Publisher: ELSEVIER ADVANCED TECHNOLOGY
Publisher Address: OXFORD FULFILLMENT CENTRE THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD
OX5 1GB, OXON, ENGLAND
ISSN: 0956-5663
DOI: 10.1016/j.bios.2010.07.096
29-char Source Abbrev.: BIOSENS BIOELECTRON
ISO Source Abbrev.: Biosens. Bioelectron.
Subject Category: Biophysics; Biotechnology & Applied Microbiology; Chemistry, Analytical; Electrochemistry; Nanoscience
& Nanotechnology
ISI Document Delivery No.: 675CY
Record 3 of 271
Author(s): Pinwattana, K (Pinwattana, Kulwadee); Wang, J (Wang, Jun); Lin, CT (Lin, Chiann-Tso); Wu, H (Wu, Hong); Du, D
(Du, Dan); Lin, YH (Lin, Yuehe); Chailapakul, O (Chailapakul, Orawon)
2 of 87
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Title: CdSe/ZnS quantum dots based electrochemical immunoassay for the detection of phosphorylated bovine serum albumin
Source: BIOSENSORS & BIOELECTRONICS, 26 (3): 1109-1113 NOV 15 2010
Language: English
Author Keywords: Electrochemical immunoassay; Quantum dots; Biomarker; Phosphorylated bovine serum albumin
KeyWords Plus: PROTEIN-PHOSPHORYLATION; GOLD NANOPARTICLES; MASS-SPECTROMETRY; ANTIGEN;
LABELS; AMPLIFICATION; IMMUNOSENSOR; SYSTEM
Abstract: A CdSe/ZnS quantum dot (QD) based electrochemical immunoassay of phosphorylated bovine serum albumin
(BSA-OP) as a protein biomarker is presented. The QDs were used as labels for amplifying electrochemical signals and were
conjugated with a secondary anti-phosphoserine antibody in a heterogeneous sandwich immunoassay. In this assay, the model
phosphorylated protein BSA-OP was added to the primary BSA antibody coated polystyrene microwells, and then the QD labeled
anti-phosphoserine antibody was added for completing immunorecognition. Finally, the bound QD was dissolved in an
acid-dissolution step and was detected by electrochemical stripping analysis. The measured current responses were proportional
to the concentration of BSA-OP. Under optimal conditions, the voltammetric response was linear over the range of 0.5-500 ng
mL(-1) of BSA-OP, with a detection limit of 0.5 ng mL(-1). It also shows good reproducibility with a relative standard deviation
of 8.6%. This QD-based electrochemical immunoassay offers great promise for simple and cost-effective analysis of protein
biomarkers. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Wang, Jun; Lin, Chiann-Tso; Wu, Hong; Du, Dan; Lin, Yuehe] Pacific NW Natl Lab, Richland, WA 99352 USA;
[Pinwattana, Kulwadee; Chailapakul, Orawon] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand;
[Chailapakul, Orawon] Chulalongkorn Univ, Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Lin, YH, Pacific NW Natl Lab, 902 Battele Blvd Richland, Richland, WA 99352 USA.
E-mail Address: [email protected]; [email protected]
Funding Agency
Grant Number
Office of the Higher Education Commission, Thailand
Thai Government
National Institutes of Health through the National Institute of Neurological Disorders and Stroke,
National Institute of Health
U01 NS058161-01
Department of Energy's Office of Biological and Environmental Research located at Pacific Northwest
National Laboratory
DOE
DE-AC05-76L01830
PCU028.2010
K.P. would like to thank the Office of the Higher Education Commission, Thailand for supporting by grant fund under the
program Strategic Scholarships for Frontier Research Network for the Join PhD Program Thai Doctoral Degree for this
research. O.C. would also like to thank the Thai Government Stimulus Package 2 (TKK2555), under the Project for
Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture, Chulalongkorn University, and
PCU028.2010. This work was performed at Pacific Northwest National Laboratory (PNNL) and partially supported by Grant
U01 NS058161-01 from the National Institutes of Health CounterACT Program through the National Institute of Neurological
Disorders and Stroke, National Institute of Health. The contents of this publication are solely the responsibility of the authors
and do not necessarily represent the official views of the federal government. The TEM characterization work was performed at
the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory. PNNL is operated
for DOE by Battelle under Contract DE-AC05-76L01830.
Times Cited: 0
ISSN: 0956-5663
DOI: 10.1016/j.bios.2010.08.021
& Nanotechnology
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ISI Document Delivery No.: 675GB
Record 4 of 271
Author(s): Nakadera, Y (Nakadera, Y.); Sutcharit, C (Sutcharit, C.); Ubukata, T (Ubukata, T.); Seki, K (Seki, K.); Utsuno, H
(Utsuno, H.); Panha, S (Panha, S.); Asami, T (Asami, T.)
Title: Enantiomorphs differ in shape in opposite directions between populations
Source: JOURNAL OF EVOLUTIONARY BIOLOGY, 23 (11): 2377-2384 NOV 2010
Language: English
Author Keywords: Amphidromus; chirality; epigenetics; gastropod; geometric morphometry; maternal effect; pleiotropy;
pulmonate
KeyWords Plus: WHOLE-BODY ENANTIOMORPHY; LEFT-RIGHT ASYMMETRY; PARTULA-SUTURALIS; MATERNAL
INHERITANCE; DEVELOPMENTAL CONSTRAINTS; SYMPATRIC SPECIATION; ELEGANS EMBRYOS; SNAILS;
EVOLUTION; REVERSAL
Abstract: Development is left-right reversed between dextral and sinistral morphs of snails. In sympatry, they share the same
gene pool, including polygenes for shell shape. Nevertheless, their shell shapes are not the mirror images of each other. This
triggered a debate between hypotheses that argue either for a developmental constraint or for zygotic pleiotropic effects of the
polarity gene. We found that dextrals can be wider or narrower than sinistrals depending on the population, contrary to the
prediction of invariable deviation under a developmental constraint. If the pleiotropy is solely responsible instead, the mean
shape of each morph should change, depending on the frequency of polarity genotype. Our simulations of this mean shape change
under zygotic pleiotropy, however, show that the direction of interchiral difference remains the same regardless of genotype
frequency. Our results suggest the presence of genetic variation among populations that changes the maternal or zygotic pleiotropic
effect of the polarity gene.
Addresses: [Nakadera, Y.; Seki, K.; Utsuno, H.; Asami, T.] Shinshu Univ, Dept Biol, Matsumoto, Nagano 3908621, Japan;
[Sutcharit, C.; Panha, S.] Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok, Thailand; [Ubukata, T.] Shizuoka Univ, Inst Geosci,
Shizuoka, Japan
Reprint Address: Asami, T, Shinshu Univ, Dept Biol, Matsumoto, Nagano 3908621, Japan.
Funding Agency
Grant Number
Japan Society for the Promotion of Science
CHE-RG
MRG
MRG 4980201
We thank J. Murray, R. H. Cowie, J. R. Stone and K. Jordaens for critical and helpful comments, and R. Chanabun, B. Kongim,
P. Prasankok, P. Tongkerd, A. Wiwegweaw, M. Honda, M. Toda, N. Asami and M. Asami for field assistance. This study was
supported by Grants-in-Aid from the Japan Society for the Promotion of Science to T.A., and research grants from the CHE-RG
Limestone Biodiversity Project to S.P. and MRG 4980201 to C.S.
Times Cited: 0
Publisher: WILEY-BLACKWELL PUBLISHING, INC
Publisher Address: COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
ISSN: 1010-061X
DOI: 10.1111/j.1420-9101.2010.02099.x
29-char Source Abbrev.: J EVOLUTION BIOL
ISO Source Abbrev.: J. Evol. Biol.
Subject Category: Ecology; Evolutionary Biology; Genetics & Heredity
ISI Document Delivery No.: 669TX
Record 5 of 271
Author(s): Fuangarworn, M (Fuangarworn, Marut); Lekprayoon, C (Lekprayoon, Chariya)
Title: Adamystis thailandensis sp. nov. (Acari: Prostigmata: Adamystidae), a new species of soil mites from Thailand with a key
to world species of Adamystidae
Source: ZOOTAXA, (2649): 61-68 OCT 18 2010
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Language: English
Author Keywords: coastal forest; soil fauna; soil mites; Prostigmata; new species; taxonomy
Abstract: A new species of soil prostigmatic mites, Adamystis thailandensis sp. nov. (Acari: Adamystidae) is described based
on adult and immature specimens collected from leaf litter and upper soil layer in a coastal forest in southern Thailand. It differs
from its congeners by the presence of a densely striated idiosomal shield and the presence of lens-like structures on the lateral,
posterior dorsomedial, and ventral sides of the idiosoma. A diagnostic key to the known species of Adamystidae is presented.
Addresses: [Fuangarworn, Marut; Lekprayoon, Chariya] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand
Reprint Address: Fuangarworn, M, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand.
Funding Agency Grant Number
Thai government
This study is part of the research project "The study and monitoring of self-recovery of biodiversity in the areas affected from
the 2004 tsunami event", funded by the Thai government budget for 2004. We would like to thank Drs. Dac Crossley, Jr., Mark
Judson, Surachai Leepitakrat, Alexey Sergeyenko, Pieter Theron, and Eddie Ueckermann for supplying relevant literature, and
the Chulalongkorn University Centenary Academic Development Project and the Center of Excellence in Biodiversity,
Chulalongkorn University for facilities. We thank Drs. Mark Judson and Andre Bochkov for reading and commenting on the
manuscript.
Times Cited: 0
Publisher: MAGNOLIA PRESS
Publisher Address: PO BOX 41383, AUCKLAND, ST LUKES 1030, NEW ZEALAND
ISSN: 1175-5326
29-char Source Abbrev.: ZOOTAXA
ISO Source Abbrev.: Zootaxa
Subject Category: Zoology
ISI Document Delivery No.: 667IQ
Record 6 of 271
Author(s): Pailoplee, S (Pailoplee, Santi); Sugiyama, Y (Sugiyama, Yuichi); Charusiri, P (Charusiri, Punya)
Title: Probabilistic Seismic Hazard Analysis in Thailand and Adjacent Areas by Using Regional Seismic Source Zones
Source: TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES, 21 (5): 757-766 OCT 2010
Language: English
Author Keywords: Seismic hazard analysis; Probabilistic approach; Seismic source zone; Earthquake catalogue; Attenuation
model; Thailand
KeyWords Plus: 26 DECEMBER 2004; SUMATRA-ANDAMAN EARTHQUAKE; ATTENUATION RELATIONSHIPS
Abstract: We conducted probabilistic seismic hazard analysis for Thailand and adjacent areas using a method proposed by
Cornell (1968). We produced seismic hazard maps showing peak ground acceleration (PGA). Twenty-one seismic source zones
covering all of Thailand and extend into adjacent areas were employed. The seismicity data used in this study was a merged data
set covering 1963 - 2007 from several international earthquake catalogues and a single Thai catalogue. We selected the strong
ground-motion attenuation model for this study by applying several existing attenuation models to recorded strong ground-motion
data and choosing the model that best fit our data. Seismic hazard analysis was carried out for 2521 grid points on a 0.25 degrees
x 0.25 degrees mesh within a rectangle defined by longitudes 92 - 106 degrees E and latitudes 0 degrees - 21 degrees N. The
resulting PGA maps for a 2% probability of exceedance for a 50-year time period suggest that ground motion of 0.3 to 0.4 g may
occur in northern and western Thailand and from 0 to 0.2 g in other parts of Thailand. The seismic hazard analysis presented here
is an important step toward an accurate evaluation of a seismic hazard potential in Thailand and adjacent areas. Further work is
needed to refine the analysis. More observations of strong ground motion in the region are needed and further seismo-tectonic
research should be encouraged.
Addresses: [Pailoplee, Santi; Charusiri, Punya] Chulalongkorn Univ, Fac Sci, Dept Geol, Earthquake & Tecton Geol Res Unit
EATGRU, Bangkok 10330, Thailand; [Sugiyama, Yuichi] Natl Inst Adv Ind Sci & Technol, Act Fault Res Ctr, Tsukuba, Ibaraki
3058567, Japan
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Reprint Address: Charusiri, P, Chulalongkorn Univ, Fac Sci, Dept Geol, Earthquake & Tecton Geol Res Unit EATGRU, Bangkok
10330, Thailand.
Funding Agency
Grant Number
Active Fault Research Center (AFRC), National Institute of Advanced Industrial Science and Technology
(AIST), Japan
This work was supported by the Active Fault Research Center (AFRC), National Institute of Advanced Industrial Science and
Technology (AIST), Japan. We thank K. Satake, M. Choowong, M. Yoshimi, and K. Yoshida for critical review during
preparation of this manuscript. Dr. Kuo-Liang Wen and Ms. Yunling Tseng, editor including anonymous reviewers are thanked
for a thorough review that greatly improved the manuscript.
Times Cited: 0
Publisher: CHINESE GEOSCIENCE UNION
Publisher Address: PO BOX 23-59, TAIPEI 10764, TAIWAN
ISSN: 1017-0839
DOI: 10.3319/TAO2009.09.21.01(T)
29-char Source Abbrev.: TERR ATMOS OCEAN SCI
ISO Source Abbrev.: Terr. Atmos. Ocean. Sci.
Subject Category: Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Oceanography
ISI Document Delivery No.: 670CT
Record 7 of 271
Author(s): Kaewtong, C (Kaewtong, Chatthai); Jiang, GQ (Jiang, Guoqian); Ponnapati, R (Ponnapati, Ramakrishna); Pulpoka, B
(Pulpoka, Buncha); Advincula, R (Advincula, Rigoberto)
Title: Redox nanoreactor dendrimer boxes: in situ hybrid gold nanoparticles via terthiophene and carbazole peripheral dendrimer
oxidation
Source: SOFT MATTER, 6 (21): 5316-5319 2010
Language: English
KeyWords Plus: RAY PHOTOELECTRON-SPECTROSCOPY; ONE-POT SYNTHESIS; ELECTROCHROMIC POLYMERS;
CROSS-LINKING; AU; POLYANILINE; FILMS; POLY(THIOPHENE); NANOSTRUCTURES; EXTRACTION
Abstract: pi-Conjugated dendrimer-protected gold nanoparticles in stable colloidal form have been successfully prepared via
simultaneous reduction of AuCl3 with oxidative polymerization of terthiophene (PT) and carbazole (PC) peripheral functionalized
polyamidoamine (PAMAM) dendrimers. The hybrid dendrimer-metal materials were characterized by UV-vis, fluorescence, and
FT-IR spectroscopy. XPS and AFM analyses were also employed. The differences in gold nanoparticle (AuNP) formation
between the two PAMAM derivatives were discussed. In case of PT dendrimer, AuNPs can be stabilized in situ to form PAMAMPPT-AuNP hybrid materials. For the PC dendrimer, the redox reaction afforded carbazole polymerization without necessarily
forming AuNPs.
Addresses: [Kaewtong, Chatthai; Jiang, Guoqian; Ponnapati, Ramakrishna; Advincula, Rigoberto] Univ Houston, Dept Chem,
Houston, TX 77004 USA; [Kaewtong, Chatthai; Jiang, Guoqian; Ponnapati, Ramakrishna; Advincula, Rigoberto] Univ Houston,
Dept Chem Engn, Houston, TX 77204 USA; [Kaewtong, Chatthai; Pulpoka, Buncha] Chulalongkorn Univ, Supramol Chem Res
Unit, Bangkok, Thailand; [Kaewtong, Chatthai; Pulpoka, Buncha] Chulalongkorn Univ, Organ Synth Res Unit, Dept Chem, Fac Sci,
Bangkok, Thailand
Reprint Address: Advincula, R, Univ Houston, Dept Chem, Houston, TX 77004 USA.
Funding Agency
Grant Number
NSF ARRA
CBET-0854979
DMR-10-06776
CHE-10-41300
Welch Foundation
6 of 87
RMU4880041
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Royal Golden Jubilee PhD Program of TRF PHD/0137/2546
The authors acknowledge funding from the NSF ARRA CBET-0854979, DMR-10-06776, CHE-10-41300 and the Robert A.
Welch Foundation (E-1551). B. P. and C. K. acknowledge supports from the Thailand Research Fund (TRF) (RMU4880041)
and the Royal Golden Jubilee PhD Program of TRF (PHD/0137/2546). We also thank Pawilai Chinwangso and La-ongnuan
Srisombat for XPS.
Times Cited: 0
Publisher: ROYAL SOC CHEMISTRY
Publisher Address: THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
ISSN: 1744-683X
DOI: 10.1039/c0sm00796j
29-char Source Abbrev.: SOFT MATTER
ISO Source Abbrev.: Soft Matter
Subject Category: Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Multidisciplinary; Polymer Science
ISI Document Delivery No.: 666XF
Record 8 of 271
Author(s): Kaewmuangmoon, J (Kaewmuangmoon, Jirattikarn); Suwanvijitr, T (Suwanvijitr, Trin); Cherdshewasart, W
(Cherdshewasart, Wichai); Chanchao, C (Chanchao, Chanpen)
Title: Leaf morphometric and genetic variation of Butea superba in Thailand
Source: SCIENCEASIA, 36 (3): 180-186 SEP 2010
Language: English
Author Keywords: clinal pattern; phylogeny; red kwao krua; chloroplast
KeyWords Plus: SEQUENCES; DNA
Abstract: Red kwao krua, Butea superba Roxb., is a herbal leguminous plant endemic in Thailand whose tuberous roots are used
for male rejuvenation and the prevention of erectile dysfunction. Different populations from different provinces vary in their
bioactivities, raising the need to evaluate the causes prior to optimal population selection and growth. Morphometric analysis of
leaves collected from 34 populations from 24 provinces throughout Thailand using nine parameters for factor and cluster analyses
were correlated with latitude and longitude revealing a clinal pattern. From the North to the South, leaf length increased in size in
factor I but decreased in size in factor 2. Genetic analysis on the same samples, using DNA sequence analysis from the chloroplast
rbcL, trnLF-cd, and trt/LF-cf regions and maximum parsimony and neighbour-joining phylogenetic analysis, revealed essentially
no genetic variation in the rbcL region, as expected. However, some between-population genetic variation was revealed by
trnLF-cd and trtiLF-cf sequences, suggesting potentially considerable genetic polymorphism. This was supported by preliminary
RAPD analyses using live primers which indicated high genetic variation within and between populations.
Addresses: [Cherdshewasart, Wichai; Chanchao, Chanpen] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand;
[Kaewmuangmoon, Jirattikarn; Suwanvijitr, Trin] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330, Thailand
Reprint Address: Chanchao, C, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
RMU5180042
TRF/BIOTEC
BRT T_149006
Asia Research Centre, Chulalongkorn University
Chulalongkorn University
This research was financially supported by following grants: Thailand Research Fund (RMU5180042), TRF/BIOTEC Special
Program for Biodiversity Research and Training (BRT T_149006), the Research Program on Conservation and Utilization of
Biodiversity of Chulalongkorn University and Asia Research Centre, Chulalongkorn University.
Times Cited: 0
Publisher: THAILANDS NATL SCIENCE & TECHNOLOGY DEVELOPMENT AGENCY
23/11/2553 18:36
Publisher Address: PUBLIC INFORMATION DEPT, 73/1 RAMA VI RD, RAJDHEVEE, BANGKOK, 00000, THAILAND
ISSN: 1513-1874
DOI: 10.2306/scienceasia1513-1874.2010.36.180
29-char Source Abbrev.: SCIENCEASIA
ISO Source Abbrev.: Scienceasia
Subject Category: Multidisciplinary Sciences
ISI Document Delivery No.: 670CF
Record 9 of 271
Author(s): Sroysang, B (Sroysang, Banyat); Wichiramala, W (Wichiramala, Wacharin)
Title: Double bubbles outside a disc
Source: SCIENCEASIA, 36 (3): 244-248 SEP 2010
Language: English
Author Keywords: soap bubble; minimizing enclosure; least-perimeter enclosing
KeyWords Plus: CONJECTURE; PROOF; PERIMETER; R(2)
Abstract: We show that the least-perimeter way to enclose and separate two regions of prescribed area outside a disc is a
truncated standard double bubble.
Addresses: [Wichiramala, Wacharin] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand; [Sroysang, Banyat]
Thammasat Univ, Rangsit Ctr, Fac Sci & Technol, Dept Math & Stat, Pathum Thani 12121, Thailand; [Wichiramala, Wacharin]
CHE, Ctr Excellence Math, Bangkok 10400, Thailand
Reprint Address: Wichiramala, W, Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Centre of Excellence in Mathematics, the Commission on Higher Education, Thailand
We would like to thank Joel Foisy for comments, and the referees for comments and suggestions. This research is supported by
the Centre of Excellence in Mathematics, the Commission on Higher Education, Thailand.
Times Cited: 0
ISSN: 1513-1874
DOI: 10.2306/scienceasia1513-1874.2010.36.244
ISI Document Delivery No.: 670CF
Record 10 of 271
Author(s): Sichaem, J (Sichaem, Jirapast); Siripong, P (Siripong, Pongpun); Khumkratok, S (Khumkratok, Suttira); Tip-Pyang, S
(Tip-Pyang, Santi)
Title: CHEMICAL CONSTITUENTS FROM THE ROOTS OF BOMBAX ANCEPS
Source: JOURNAL OF THE CHILEAN CHEMICAL SOCIETY, 55 (3): 325-327 SEP 2010
Language: English
Author Keywords: Bombax anceps; Bombacaceae; Bombaxoin; dihydrobenzodioxine derivative
KeyWords Plus: PHENOLIC COMPONENTS; MALABARICUM; ANTIOXIDANT
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Abstract: The phytochemical investigation of the roots of Bombay anceps. (Bombacaceae) led to the isolation of one new
dihydrobenzodioxine derivative, bombaxoin (1) along with ten known compounds. All structures of the isolated compounds were
established by means of spectral analyses. Compound 2 showed the highest antioxidant activity (DPPH), while compound 8
showed the highest potential inhibitors activity toward AChE and BChE. In addition, all of the compounds were inactive to
cytotoxic activity (KB and HeLa cell lines).
Addresses: [Sichaem, Jirapast; Tip-Pyang, Santi] Chulalongkorn Univ, Dept Chem, Nat Prod Res Unit, Fac Sci, Bangkok 10330,
Thailand; [Siripong, Pongpun] Natl Canc Inst, Div Res, Nat Prod Res Sect, Bangkok 10400, Thailand; [Khumkratok, Suttira]
Mahasarakham Univ, Walai Rukhavej Bot Res Inst, Maha Sarakham 44000, Thailand; [Sichaem, Jirapast] Chulalongkorn Univ,
Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Sichaem, J, Chulalongkorn Univ, Dept Chem, Nat Prod Res Unit, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Graduate School of Chulalongkorn University
Center for Petroleum, Petrochemical and Advanced Materials, Chulalongkorn University
The authors are grateful to Graduate School of Chulalongkorn University for financial support. We also thank the Center for
Petroleum, Petrochemical and Advanced Materials, Chulalongkorn University for partially supporting this project.
Times Cited: 0
Publisher: SOC CHILENA QUIMICA
Publisher Address: CASILLA 2613, CONCEPCION, 00000, CHILE
ISSN: 0717-9324
29-char Source Abbrev.: J CHIL CHEM SOC
ISO Source Abbrev.: J. Chil. Chem. Soc.
Subject Category: Chemistry, Multidisciplinary
ISI Document Delivery No.: 670EQ
Record 11 of 271
Author(s): Kaulpiboon, J (Kaulpiboon, Jarunee); Prasong, W (Prasong, Wanida); Rimphanitchayakit, V (Rimphanitchayakit,
Vichien); Murakami, S (Murakami, Shuichiro); Aoki, K (Aoki, Kenji); Pongsawasdi, P (Pongsawasdi, Piamsook)
Title: Expression and characterization of a fusion protein-containing cyclodextrin glycosyltransferase from Paenibacillus sp A11
Source: JOURNAL OF BASIC MICROBIOLOGY, 50 (5): 427-435 SEP 2010
Language: English
Author Keywords: Cyclodextrin glycosyltransferase; Expression; Fusion protein; Organic solvents; Paenibacillus sp.
KeyWords Plus: ESCHERICHIA-COLI; CYCLOMALTODEXTRIN GLUCANOTRANSFERASE; PRODUCT SPECIFICITY;
ORGANIC-SOLVENTS; BINDING; THIOREDOXIN; POLYMERASE; MACERANS
Abstract: A recombinant cyclodextrin glycosyltransferase (CGTase) gene fused with thioredoxin (Trx), hexa-histidine (His(6))
and S-protein (S) at the N terminus and a proline-rich peptide (PRP) at the C terminus, was constructed using the wild-type gene
from Paenibacillus sp. A11, the pET-32a vector and Escherichia coil BL21(DE3) as the host cell. The expression levels and
enzyme characteristics of the Trx-His(6)-CGTase-PRP fusion protein, the recombinant CGTase without fusion peptides, and the
wild-type CGTase were compared. The maximum specific activity for the Trx-His(6)-CGTase-PRP fusion enzyme was 2.7 fold
higher than that of the non-fusion form at the optimal IPTG concentration. The Trx-His(6)-CGTase-PRP fusion protein was
purified to homogeneity by starch adsorption and Ni-NTA affinity chromatography, with a specific activity of 2,268 units/mg
protein at a 61% yield. The ease of purification and the higher enzyme yield were obtained with the fusion form when compared to
the non-fusion and wild-type enzymes. The fusion enzyme was superior than its wild-type counterpart in terms of stability against
high temperature and organic solvents. Moreover, the fusion enzyme could catalyze the synthesis of cyclodextrins in 20% (v/v)
dimethylformamide with a higher product yield of CD7 and CD8 compared to that of the wild-type enzyme in the same buffersolvent system.
Addresses: [Kaulpiboon, Jarunee] Thammasat Univ, Fac Med, Dept Preclin Sci Biochem, Pathum Thani 12121, Thailand;
[Prasong, Wanida; Rimphanitchayakit, Vichien; Pongsawasdi, Piamsook] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok,
Thailand; [Murakami, Shuichiro] Meiji Univ, Fac Agr, Dept Agr Chem, Tama Ku, Kawasaki, Kanagawa, Japan; [Aoki, Kenji]
Sagami Womens Univ, Fac Nutr Sci, Dept Nutr Management, Bunkyo Ku, Sagamihara, Kanagawa, Japan
Reprint Address: Kaulpiboon, J, Thammasat Univ, Fac Med, Dept Preclin Sci Biochem, Pathum Thani 12121, Thailand.
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Funding Agency
Grant Number
Japan Society for the Promotion of Science-National Research Council of Thailand (JSPS-NRCT)
Alexander von Humboldt Foundation of Germany
Supports from the Japan Society for the Promotion of Science-National Research Council of Thailand (JSPS-NRCT) and the
Alexander von Humboldt Foundation of Germany are acknowledged. Funding was also from the Rachadapiseksompote
Endowment Fund of Chulalongkorn University to the Starch and Cyclodextrin Research Unit. We are grateful to Dr. Siriporn
Sittipraneed and Dr. Chanprapa Imjongjirak for providing a Ni-NTA affinity column, and to Dr. Robert Butcher from UK. for his
help in editing the manuscript under the service of the Publication Counseling Unit of the Faculty of Science, Chulalongkorn
University.
Times Cited: 0
Publisher: WILEY-V C H VERLAG GMBH
Publisher Address: PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
ISSN: 0233-111X
DOI: 10.1002/jobm.200900039
29-char Source Abbrev.: J BASIC MICROB
ISO Source Abbrev.: J. Basic Microbiol.
Subject Category: Microbiology
ISI Document Delivery No.: 666GW
Record 12 of 271
Author(s): Kumchoo, T (Kumchoo, Trakool); Promarak, V (Promarak, Vinich); Sudyoadsuk, T (Sudyoadsuk, Taweesak);
Sukwattanasinitt, M (Sukwattanasinitt, Mongkol); Rashatasakhon, P (Rashatasakhon, Paitoon)
Title: Dipyrenylcarbazole Derivatives for Blue Organic Light-Emitting Diodes
Source: CHEMISTRY-AN ASIAN JOURNAL, 5 (10): 2162-2167 2010
Language: English
Author Keywords: carbazole; electroluminescence; fluorescence; organic light emitting diodes; pyrenes
KeyWords Plus: EFFICIENT COPPER CATALYST; ELECTROLUMINESCENT DEVICES; CONJUGATED POLYMERS;
CONDUCTING POLYMERS; OPTICAL-PROPERTIES; HOLE-INJECTION; ARYL HALIDES; PI-STACKING;
FLUORESCENCE; DENDRIMERS
Addresses: [Kumchoo, Trakool; Sukwattanasinitt, Mongkol; Rashatasakhon, Paitoon] Chulalongkorn Univ, Fac Sci, Organ Synth
Res Unit, Dept Chem, Bangkok 10330, Thailand; [Promarak, Vinich; Sudyoadsuk, Taweesak] Ubon Ratchathani Univ, Fac Sci,
Dept Chem, Adv Organ Mat & Devices Lab, Warinchumrap 34190, Ubon Ratchathan, Thailand
Reprint Address: Kumchoo, T, Chulalongkorn Univ, Fac Sci, Organ Synth Res Unit, Dept Chem, Payathai Rd, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
TFR-MRG5080197
National Nanotechnology Center
NN-B-22-FN9-10-52-06
Faculty of Science, Chulalongkorn University
Center for Petroleum, Petrochemicals and Advanced Material, Chulalongkorn University
This work is financially supported by the Thailand Research Fund (TFR-MRG5080197). a research grant (NN-B22-FN9-10-52-06) from the National Nanotechnology Center, and the Faculty of Science, Chulalongkorn University. T.K. thanks
the Center for Petroleum, Petrochemicals and Advanced Material, Chulalongkorn University for a scholarship. P.R. thanks Prof.
Thawatchai Tuntulani for valuable advice and information.
Times Cited: 0
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ISSN: 1861-4728
DOI: 10.1002/asia.201000304
29-char Source Abbrev.: CHEM-ASIAN J
ISO Source Abbrev.: Chem.-Asian J.
ISI Document Delivery No.: 668LS
Record 13 of 271
Author(s): Noppakundilograt, S (Noppakundilograt, Supaporn); Buranagul, P (Buranagul, Punthorn); Graisuwan, W (Graisuwan,
Wilaiporn); Koopipat, C (Koopipat, Chawan); Kiatkamjornwong, S (Kiatkamjornwong, Suda)
Title: Modified chitosan pretreatment of polyester fabric for printing by ink jet ink
Source: CARBOHYDRATE POLYMERS, 82 (4): 1124-1135 NOV 11 2010
Language: English
Author Keywords: Chitosan; Glycine; N-[(4-dimethyl aminobenzyl)imino] chitosan; N-[(2-hydroxy3-trimethylammonium)propyl] chitosan chloride; Color properties; Outline sharpness; Stiffness
KeyWords Plus: ANTIMICROBIAL ACTIVITY; SURFACE; WOOL; ADSORPTION
Abstract: The present research deals with the use of pretreatment solutions of chitosan (CH), N-[(4-dimethyl aminobenzyl)imino]
chitosan (DBIC), N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride (HTACC), glycine (Gly), and a mixture of CH
and Gly, for padding polyester fabrics prior to printing with a set of seven-color pigmented water-based ink jet inks. After
padding the fabrics with the above cationic pretreatments, they were printed with a piezo-electric drop-on-demand jet printer.
CH, DBIC and HTACC were characterized by IR and NMR spectroscopy. The zeta potentials of the pretreatment solutions, the
inks and the fabrics were measured. The K/S values, color gamut, tone reproduction, outline sharpness, and the surface
appearance of the fabrics were characterized. Statistical evaluation of the significance of the results was performed. Among the
pretreatments, the HTACC at 0.1% (w/v) yielded fabrics with the highest K/S values, widest color gamut and gamut volume, more
color saturation with good tonal reproduction, and the sharpest and smoothest outline of printed character, and a smooth fabric
surface with less stiffness. The proposed ionic interactions between the protonated amino groups of CH and the anionic portion of
the encapsulated ink pigments, and van der Waals and hydrophobic interactions between the polyester and the pigments are likely
reasons for these enhanced properties of the printed fabrics. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Noppakundilograt, Supaporn; Buranagul, Punthorn; Koopipat, Chawan; Kiatkamjornwong, Suda] Chulalongkorn
Univ, Dept Imaging & Printing Technol, Fac Sci, Bangkok 10330, Thailand; [Graisuwan, Wilaiporn] Chulalongkorn Univ,
Program Petrochem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Kiatkamjornwong, S, Chulalongkorn Univ, Dept Imaging & Printing Technol, Fac Sci, Phyathai Rd, Bangkok
10330, Thailand.
E-mail Address: [email protected]; [email protected]; [email protected]; [email protected];
[email protected]
Funding Agency
Grant Number
National Research Council of Thailand GRB_19_51_23_03
Research Team Aids
RTA5080004
The authors would like to acknowledge the research grant support by the National Research Council of Thailand under contract
number GRB_19_51_23_03 and the Research Team Aids coded RTA5080004 for their financial support. Deep gratitude also
goes to the Polymer Research Laboratory of the Department of Imaging and Printing Technology, Chulalongkorn University, for
providing research facilities. The authors are indebted to the Department of Textile Chemical Engineering, the Faculty of Textile
Industries, Rajamangala University of Technology, KrungThep, for permission to use their padding machine and steamer. Many
thanks go to Assistant Professor Voravee, P. Hoven, Ph.D. for useful comments on the manuscript, to Publication Counseling
Unit of the Research Affairs, Faculty of Science, Chulalongkorn University for language editing.
Times Cited: 0
Publisher: ELSEVIER SCI LTD
Publisher Address: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
ISSN: 0144-8617
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DOI: 10.1016/j.carbpol.2010.06.040
29-char Source Abbrev.: CARBOHYD POLYM
ISO Source Abbrev.: Carbohydr. Polym.
Subject Category: Chemistry, Applied; Chemistry, Organic; Polymer Science
ISI Document Delivery No.: 665NI
Record 14 of 271
Author(s): Malaivijitnond, S (Malaivijitnond, S.); Ketsuwan, A (Ketsuwan, A.); Watanabe, G (Watanabe, G.); Taya, K (Taya,
K.); Cherdshewasart, W (Cherdshewasart, W.)
Title: Luteinizing hormone reduction by the male potency herb, Butea superba Roxb
Source: BRAZILIAN JOURNAL OF MEDICAL AND BIOLOGICAL RESEARCH, 43 (9): 843-852 SEP 2010
Language: English
Author Keywords: Butea superba; Testosterone propionate; Testis; Seminal vesicle; Luteinizing hormone
KeyWords Plus: PUERARIA-MIRIFICA; ERECTILE DYSFUNCTION; ANDROGENIC ACTIVITY; CASTRATED RATS;
FSH-SECRETION; PHYTOESTROGENS; FEMALE; WEIGHT; ORGANS; PLANTS
Abstract: To determine if Butea superba Roxb., a traditional Thai male potency herb, has androgenic activity in 60-day-old male
Wistar rats, we measured its effects on the pituitary-testicular axis and sex organs. Intact and orchidectomized adult male rats
were subdivided into five groups (10 rats/group): distilled water, Butea superba (BS)-10, BS-50, BS-250, and testosterone
propionate (TP). They received 0, 10, 50, and 250 mg.kg body weight(-1).day(-1) BS in distilled water by gavage and 6 mg.kg
body weight(-1).day(-1) TP sc, respectively, during the 30-day treatment period. Blood was collected every 15 days and
luteinizing hormone (LH), follicle-stimulating hormone (FSH) and testosterone were measured. Changes of weight and
histological appearance of sex organs were determined at the end of the 30-day treatment and 15-day post-treatment periods. TP
treatment reduced serum FSH and LH levels and significantly increased the weight of the seminal vesicles and epididymis, in
accordance with histopathological changes, in both intact and orchidectomized rats. No changes in serum testosterone, LH, and
FSH levels were observed in any of the intact rats treated with BS, but a significant increase in seminal vesicle weight was
observed only in the BS-250 group. Although a significant reduction in serum LH was detected in the BS-50 and BS-250 groups
of orchidectomized rats, no significant change in weight or histology of sex organs was observed. Thus, we conclude that B.
superba needs endogenous testosterone to work synergistically to stimulate the accessory sex organ of intact animals and can
potentially exhibit an LH reduction effect in orchidectomized animals.
Addresses: [Malaivijitnond, S.; Ketsuwan, A.; Cherdshewasart, W.] Chulalongkorn Univ, Fac Sci, Dept Biol, Primate Res Unit,
Bangkok 10330, Thailand; [Ketsuwan, A.] Chulalongkorn Univ, Grad Sch, Interdisciplinary Program Physiol, Bangkok 10330,
Thailand; [Watanabe, G.; Taya, K.] Tokyo Univ Agr & Technol, Vet Physiol Lab, Tokyo, Japan; [Watanabe, G.; Taya, K.] Gifu
Univ, United Grad Sch Vet Sci, Dept Basic Vet Sci, Gifu, Japan
Reprint Address: Malaivijitnond, S, Chulalongkorn Univ, Fac Sci, Dept Biol, Primate Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Ministry of Education, Culture, Sport, Science and Technology of Japan
Interdisciplinary Program in Physiology,
Graduate School
Primate Research Unit
Chulalongkorn University, Thailand
The authors thank Dr. Robert Butcher, Faculty of Science, Chulalongkorn University, for proofreading the manuscript. Research
supported in part by the Interdisciplinary Program in Physiology, the Graduate School, the Primate Research Unit,
Chulalongkorn University, Thailand and by a Grants-in-Aid for Scientific Research (The 21st Century Center of Excellence
Program, E-1) from the Ministry of Education, Culture, Sport, Science and Technology of Japan.
Times Cited: 0
Publisher: ASSOC BRAS DIVULG CIENTIFICA
Publisher Address: FACULDADE MEDICINA, SALA 21, 14049 RIBEIRAO PRETO, SAO PAULO, 00, BRAZIL
ISSN: 0100-879X
29-char Source Abbrev.: BRAZ J MED BIOL RES
23/11/2553 18:36
ISO Source Abbrev.: Brazilian J. Med. Biol. Res.
Subject Category: Biology; Medicine, Research & Experimental
ISI Document Delivery No.: 668IW
Record 15 of 271
Author(s): Chalermsinsuwan, B (Chalermsinsuwan, Benjapon); Piumsomboon, P (Piumsomboon, Pornpote); Gidaspow, D
(Gidaspow, Dimitri)
Title: A Computational Fluid Dynamics Design of a Carbon Dioxide Sorption Circulating Fluidized Bed
Source: AICHE JOURNAL, 56 (11): 2805-2824 NOV 2010
Language: English
Author Keywords: circulating fluidized bed; computational fluid dynamics; sorption; kinetic theory; design
KeyWords Plus: CO2 CAPTURE; POTASSIUM CARBONATE; KINETIC-THEORY; FCC PARTICLES; FLOW; GAS;
SEPARATION; K2CO3-ON-CARBON; GASIFICATION; ADSORPTION
Abstract: A kinetic theory based hydrodynamic model with experimentally determined sorption rates for reaction of CO2 with
K2CO3 solid sorbent is used to design a compact circulating fluidized bed sorption-regeneration system for CO2 removal from
flue gases. Because of high solids fluxes, the sorber does not require internal or external cooling. The output is verified by
computing the granular temperatures, particle viscosities, dispersion, and mass transfer coefficients. These properties agree with
reported measurement values except the radial dispersion coefficients, which are much higher due to the larger bed diameter. With
the solid sorbent prepared according to published information, the CO2 removal percentage at the riser top is 69.16%. To
improve the CO2 removal, an effort is needed to develop a better sorbent or to simply lower the inlet gas velocity to operate in a
denser mode, leading to a larger system. Also, the effect of temperature rise on the removal efficiency is investigated. (C) 2010
American Institute of Chemical Engineers AIChE J, 56: 2805-2824, 2010
Addresses: [Gidaspow, Dimitri] IIT, Dept Chem & Biol Engn, Chicago, IL 60616 USA; [Chalermsinsuwan, Benjapon;
Piumsomboon, Pornpote] Chulalongkorn Univ, Dept Chem Technol, Fuels Res Ctr, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Gidaspow, D, IIT, Dept Chem & Biol Engn, Chicago, IL 60616 USA.
Funding Agency
Grant Number
PHD/0021/2550
Center for Petroleum, Petrochemicals, and Advanced Materials
The authors gratefully acknowledge financial support of this study by the Thailand Research Fund through the Royal Golden
Jubilee Ph.D. Program (Grant No. PHD/0021/2550). This study also was partially supported by the Center for Petroleum,
Petrochemicals, and Advanced Materials.
Times Cited: 0
Publisher: JOHN WILEY & SONS INC
Publisher Address: 111 RIVER ST, HOBOKEN, NJ 07030 USA
ISSN: 0001-1541
DOI: 10.1002/aic.12213
29-char Source Abbrev.: AICHE J
ISO Source Abbrev.: AICHE J.
Subject Category: Engineering, Chemical
ISI Document Delivery No.: 666HF
Record 16 of 271
Author(s): Phochayavanich, R (Phochayavanich, Ratchata); Voris, HK (Voris, Harold K.); Khonsue, W (Khonsue, Wichase);
Thunhikorn, S (Thunhikorn, Somying); Thirakhupt, K (Thirakhupt, Kumthorn)
Title: Comparison of Stream Frog Assemblages at Three Elevations in an Evergreen Forest, North-Central Thailand
Source: ZOOLOGICAL STUDIES, 49 (5): 632-639 SEP 2010
Language: English
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Author Keywords: Frog diversity; Species composition; Steam transects; Elevational differences
KeyWords Plus: SPECIES-RICHNESS; PATTERNS; AMPHIBIANS; DIVERSITY; ABUNDANCE; GRADIENT; BRAZIL
Abstract: Ratchata Phochayavanich, Harold K. Voris, Wichase Khonsue, Somying Thunhikorn, and Kumthorn Thirakhupt (2010)
Comparison of stream frog assemblages at three elevations in an evergreen forest, north-central Thailand. Zoological Studies
49(5): 632-639. A study of stream-dwelling frog assemblages was conducted at 800, 950, and 1250 m in elevation on the Nam
San Noi stream, Phuluang Wildlife Sanctuary, north-central Thailand. Three transects, each 100 m long which ran along the
stream, were designated at each elevation. Visual encounter surveys were conducted within each transect at night from June 2006
to May 2007. The Shannon-Wiener index of species diversity indicated that the diversity was highest at the lowest elevation and
lowest at the highest elevation, while Morishita's similarity index indicated that species compositions at 800 and 950 m were very
similar to each other, but both of them differed from that at the highest elevation (1250 m). Over all 3 elevations, 4 of the most
common species (with abundances exceeding 1%) were least abundant at the highest elevation, while 2 species, Limnonectes
kuhlii and Odorrana aureola, were most abundant at the highest elevation. The abundance of Lim. gyldenstolpei fluctuated among
the 3 elevations. These results indicated that the frog compositions significantly differed between 2 elevation groups, that is
between (a) the group consisting of 800 and 950 m and (b) that at 1250 m, and also that frog diversity tended to be highest at the
lowest elevation. http://zoolstud.sinica.edu.tw/Journals/49.5/632.pdf
Addresses: [Phochayavanich, Ratchata; Khonsue, Wichase; Thirakhupt, Kumthorn] Chulalongkorn Univ, Fac Sci, Dept Biol,
Bangkok 10330, Thailand; [Voris, Harold K.] Field Museum Nat Hist, Div Amphibians & Reptiles, Dept Zool, Chicago, IL 60605
USA; [Thunhikorn, Somying] Dept Natl Pk Wildlife & Plant Conservat, Wildlife Res Div, Phuluang Wildlife Res Stn, Bangkok
10900, Thailand
Reprint Address: Thirakhupt, K, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thai government
CEB_M_24_2006
Field Museum, Chicago, IL, USA
TRF/BIOTEC Special Program for Biodiversity Research and Training
National Center for Genetic Enginnering and Biotechnology, Bangkok, Thailand BRT T_250002
This project was supported by the Thai government budget for 2006, under the Research Program on Conservation and
Utilization of Biodiversity, the Center of Excellence in Biodiversity, Department of Biology, Faculty of Science, Chulalongkorn
Univ. (CEB_M_24_2006), the John D. and Catherine T. MacArthur Foundation under collaboration with the Field Museum,
Chicago, IL, USA and the TRF/BIOTEC Special Program for Biodiversity Research and Training, National Center for Genetic
Enginnering and Biotechnology, Bangkok, Thailand, grant BRT T_250002. We would like to thank the staff of Phuluang Wildlife
Research Station for their kind assistance and cooperation and for providing facilities during the field surveys. In addition, we
would like to thank Mr. C. Pongchareon for his assistance in conducting the night surveys and Dr. R. Butcher for his comments
and suggestions on the manuscript.
Times Cited: 0
Publisher: ACAD SINICA INST ZOOLOGY
Publisher Address: EDITORIAL OFFICE, TAIPEI 115, TAIWAN
ISSN: 1021-5506
29-char Source Abbrev.: ZOOL STUD
ISO Source Abbrev.: Zool. Stud.
ISI Document Delivery No.: 656AM
Record 17 of 271
Author(s): Pipatsawasdikul, K (Pipatsawasdikul, Kruewan); Voris, HK (Voris, Harold K.); Thirakhupt, K (Thirakhupt, Kumthorn)
Title: Distribution of the Big-Headed Turtle (Platysternon megacephalum, Gray 1831) in Thailand
Source: ZOOLOGICAL STUDIES, 49 (5): 640-650 SEP 2010
Language: English
Author Keywords: Platysternon megacephalum; big-headed turtle; distribution; Thailand
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Abstract: Kruewan Pipatsawasdikul, Harold K. Voris, and Kumthorn Thirakhupt (2010) Distribution of the big-headed turtle
(Platysternon megacephalum, Gray 1831) in Thailand. Zoological Studies 49(5): 640-650. The distribution of the big-headed
turtle Platysternon megacephalum, Gray 1831 in Thailand was studied from Dec. 2006 to Apr. 2009. Mountain streams of
protected and unprotected areas throughout Thailand, except in the southern peninsular region, were ground surveyed. This study
confirms the occurrence of P megacephalum in 1 new and 9 previously reported river basins in the northeastern part of Thailand.
Among these, 22 new localities at elevations of 430-1350 m were reported. Most P megacephalum individuals were found at night
in small, often rapidly flowing mountain streams in dry dipterocarp and montane rainforests. The water temperature of these
streams ranged 15.5-20.3 degrees C ((x) over bar = 19.04 +/- 2.10 degrees C, n = 33), pH values ranged 5.32-8.07, and water
depths were 14.0-95.0 cm ((x) over bar= 41.67 +/- 25.30 cm, n = 33). The turtles appeared to be most abundant at elevations of
630-720 m. Platysternon megacephalum populations face serious threats from habitat loss, human consumption, and commercial
harvest of turtles. This species urgently needs an aggressive conservation program to ensure its survival.
http://zoolstud.sinica.edu.tw/Journals/49.5/640.pdf
Addresses: [Thirakhupt, Kumthorn] Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand; [Voris, Harold K.] Field
Museum Nat Hist, Dept Zool, Chicago, IL 60605 USA; [Pipatsawasdikul, Kruewan] Chulalongkorn Univ, Interdept Environm Sci,
Bangkok 10330, Thailand
Reprint Address: Thirakhupt, K, Chulalongkorn Univ, Dept Biol, Fac Sci, 254 Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
J.D. and C.T. MacArthur Foundation
The Field Museum of Natural History
TRF/BIOTEC
BRT T_251002
Thai government
Center of Excellence in Biodiversity, Faculty of Science, Chulalongkorn University CEB_D_12_2006
We are grateful to the authority of the National Park, Wildlife and Plant Conservation Department for permission to conduct
these surveys in Thailand. We thank Mr. P. Rotchanadilok (Doi Chiang Dao Wildlife Research Station, CM, Thailand), and P.
Crow (Kadoorie Farm and Botanic Garden, Hong Kong) for invaluable help in the initial stages of this project. Thanks also go
to all villagers and forest rangers for their assistance in surveying and to Dr. G. Koehler (Institute and Natural History Museum
Senckenberg, Germany), Dr. C. McCarthy (The Natural History Museum, London, UK), A. Resetar (Field Museum of Natural
History, Chicago, IL, USA), Dr. K.L. Krysko (Univ. of Florida, Gainesville, FL, USA), D. Dickey (American Museum of
Natural History, NY, USA), Dr. G. Schneider (Univ. of Michigan, Ann Arbor, MI, USA), Dr. N. Rasmussen (Univ. of Kansas,
Lawrence, KS, USA), Dr. G. Zug (Smithsonian Institution, Washington DC, USA), Dr. A. Aowphol (Kasetsart Univ., Bkk,
Thailand), and Mr. S. Makchai (Thailand Natural History Museum, PT, Thailand) for specimen information. Special thanks go
to Dr. R. Butcher, Research Division, Faculty of Science, Chulalongkorn Univ. (Bkk, Thailand) for his helpful comments and
suggestions. We also thank an anonymous reviewer and Jonathan Fong for numerous helpful suggestions for improving the
manuscript. This research was funded by the J.D. and C.T. MacArthur Foundation under collaboration with The Field Museum
of Natural History, TRF/BIOTEC Special Program for Biodiversity Research and Training grant BRT T_251002 and the Thai
government budget 2006, under the Research Program on Conservation and Utilization of Biodiversity and the Center of
Excellence in Biodiversity, Faculty of Science, Chulalongkorn University (CEB_D_12_2006).
Times Cited: 0
ISSN: 1021-5506
ISI Document Delivery No.: 656AM
Record 18 of 271
Author(s): Kongwut, O (Kongwut, O.); Kornduangkeaw, A (Kornduangkeaw, A.); Jangsawang, N (Jangsawang, N.); Hodak, SK
(Hodak, Satreerat K.)
Title: Influence of gamma irradiation on the refractive index of Fe-doped barium titanate thin films
Source: THIN SOLID FILMS, 518 (24): 7407-7411 Sp. Iss. SI OCT 1 2010
Language: English
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Author Keywords: Gamma irradiation; Fe-doped BaTiO3; Sol-gel method; Refractive index
KeyWords Plus: SOL-GEL METHOD; STRONTIUM-TITANATE; DIELECTRIC-PROPERTIES; OPTICAL-PROPERTIES;
TUNABLE MICROWAVE; GRAIN-GROWTH; BATIO3; COMPOSITE; CONSTANTS; RADIATION
Abstract: Polycrystalline Fe-doped barium titanate (Fe-doped BaTiO3) thin films were grown by thermal decomposition of the
precursors deposited from a sol-gel system onto quartz substrates. The changes in the transmittance spectra induced by gamma
irradiation on the Fe-doped BaTiO3 thin films were quantified. The values for the optical energy band gap were in the range of
3.42-3.95 eV depending on the annealing time. The refractive index of the film, as measured in the 350-750 nm wavelength range
was in the 2.17-1.88 range for the as prepared film, and this increased to 2.34-1.95 after gamma irradiation at 15 kGy. The
extinction coefficient of the film was in the order of 10(-2) and increased after gamma irradiation. We obtained tuneable complex
refractive index of the films by exposure to various gamma rays doses. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Kongwut, O.; Hodak, Satreerat K.] Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand;
[Kornduangkeaw, A.; Jangsawang, N.] Thailand Inst Nucl Technol TINT, Bangkok 10900, Thailand; [Hodak, Satreerat K.]
Chulalongkorn Univ, Ctr Innovat Nanotechnol, Bangkok 10330, Thailand
Reprint Address: Hodak, SK, Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Toray Science Foundation (TTSF)
National Research Council of Thailand (NRCT)
Graduate Thesis Grant
A1B1
Thai Government under Comprehensive Center for Innovative Food, Health Products and Agriculture TKK2555
This work was supported by The Thailand Research Fund (TRF), the Thailand Toray Science Foundation (TTSF), National
Research Council of Thailand (NRCT) and a Graduate Thesis Grant. Also, this work was supported by Research Funds from the
Faculty of Science, Chulalongkorn University (A1B1), the Thai Government Stimulus Package 2 (TKK2555) under the Project
for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture, and Chulalongkorn
University Centenary Academic Development Project. The authors would like to thank the Synchrotron Light Research Institute
at Suranaree University of Technology.
Times Cited: 0
Publisher: ELSEVIER SCIENCE SA
Publisher Address: PO BOX 564, 1001 LAUSANNE, SWITZERLAND
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2010.05.023
29-char Source Abbrev.: THIN SOLID FILMS
ISO Source Abbrev.: Thin Solid Films
Subject Category: Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics,
Condensed Matter
ISI Document Delivery No.: 663UI
Record 19 of 271
Author(s): Rachadech, W (Rachadech, W.); Navacharoen, A (Navacharoen, A.); Ruangsit, W (Ruangsit, W.); Pongtharangkul, T
(Pongtharangkul, T.); Vangnai, AS (Vangnai, A. S.)
Title: An organic solvent-, detergent-, and thermostable alkaline protease from the mesophilic, organic solvent-tolerant Bacillus
licheniformis 3C5
Source: MICROBIOLOGY, 79 (5): 620-629 OCT 2010
Language: English
Author Keywords: organic-solvent tolerant bacterium; Bacillus licheniformis; thermo-, organic-, solvent-, detergent-stable
protease; alkaline protease
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KeyWords Plus: BACTERIA; PURIFICATION; STRAIN
Abstract: Bacillus licheniformis 3C5, isolated as mesophilic bacterium, exhibited tolerance towards a wide range of non-polar
and polar organic solvents at 45A degrees C. It produced an extracellular organic solvent-stable protease with an apparent
molecular mass of approximately 32 kDa. The inhibitory effect of PMSF and EDTA suggested it is likely to be an alkaline serine
protease. The protease was active over a broad range of temperatures (45-70A degrees C) and pH (8-10) range with an optimum
activity at pH 10 and 65A degrees C. It was comparatively stable in the presence of a relatively high concentration (35% (v/v)) of
organic solvents and various types of detergents even at a relatively high temperature (45A degrees C). The protease production
by B. licheniformis 3C5 was growth-dependent. The optimization of carbon and nitrogen sources for cell growth and protease
production revealed that yeast extract was an important medium component to support both cell growth and the protease
production. The overall properties of the protease produced by B. licheniformis 3C5 suggested that this thermo-stable, solventstable, detergent-stable alkaline protease is a promising potential biocatalyst for industrial and environmental applications.
Addresses: [Rachadech, W.; Navacharoen, A.; Vangnai, A. S.] Chulalongkorn Univ, Dept Biochem, Fac Sci, Bangkok 10330,
Thailand; [Ruangsit, W.; Pongtharangkul, T.] Mahidol Univ, Dept Biotechnol, Bangkok 10400, Thailand; [Vangnai, A. S.]
Chulalongkorn Univ, Natl Ctr Excellence Environm & Hazardous Waste Ma, Bangkok 10330, Thailand
Reprint Address: Vangnai, AS, Chulalongkorn Univ, Dept Biochem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
International Foundation for Science (IFS), Sweden
Japan Society for the Promotion of Science (JSPS)
Mahidol University
Osaka University
National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand
JSPS under ACP
Research grants supported to A. Vangnai from the International Foundation for Science (IFS), Sweden, and
Ratchadaphiseksomphot Endowment Fund, Chulalongkorn University were appreciated. This work was under the collaboration
of Chulalongkorn University-Hiroshima University under the Asian Core Program (ACP), supported by the Japan Society for the
Promotion of Science (JSPS) and the National Research Council of Thailand (NRCT), and the collaboration between Mahidol
University and Osaka University, supported by the National Center for Genetic Engineering and Biotechnology (BIOTEC),
Thailand, and the JSPS under ACP.
Times Cited: 0
Publisher: MAIK NAUKA/INTERPERIODICA/SPRINGER
Publisher Address: 233 SPRING ST, NEW YORK, NY 10013-1578 USA
ISSN: 0026-2617
DOI: 10.1134/S0026261710050061
29-char Source Abbrev.: MICROBIOLOGY-ENGL TR
ISO Source Abbrev.: Microbiology
ISI Document Delivery No.: 661CK
Record 20 of 271
Author(s): Singh, A (Singh, A.); Sharma, RP (Sharma, R. P.); Aree, T (Aree, T.); Venugopalan, P (Venugopalan, P.)
Title: Weak C-H center dot center dot center dot F-C interactions in carboxylate anion binding: Synthesis, spectroscopic and
X-ray structural studies of [Co(phen)(2)CO3](2) (C7H3O2FCl)Cl center dot 11H(2)O and [Co(phen)(2)CO3]
(C7H3NO4Cl)center dot 6H(2)O
Source: JOURNAL OF CHEMICAL SCIENCES, 122 (5): 739-750 Sp. Iss. SI SEP 2010
Language: English
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Author Keywords: Cobalt(III); second sphere coordination chemistry; 1,10-phenanthroline; 2-chloro-5-fluorobenzoate; C-H
center dot center dot center dot F interactions
KeyWords Plus: 2ND SPHERE COORDINATION; HYDROGEN-BONDS; MOLECULAR-CRYSTALS; ORGANIC IODIDES;
CHEMISTRY; COMPLEXES; FLUORINE; HALOGEN; INTERPLAY; STACKING
Abstract: Two new complex salts containing 2,5-substituted benzoate ions, [Co(phen)(2)CO3](2) (C7H3O2FCl)Cl center dot
11H(2)O (1) and [Co(phen)(2)CO3](C7H3NO4Cl)center dot 6H(2)O (2) (where phen = 1,10-phenanthroline, C7H3O2FCl =
2-chloro-5-fluorobenzoate (cfbz) and C7H3NO4Cl = 2-chloro-5-nitrobenzoate(cnbz)) were synthesized by reacting
carbonatobis(1,10-phenanthroline)cobalt(III) chloride with appropriate salts in aqueous medium. A detailed packing analysis has
been undertaken to delineate the role of second sphere C-H center dot center dot center dot F and C-H center dot center dot center
dot O interactions amid other heteroatom interactions. The complex salts have been characterized by elemental analyses,
spectroscopic studies (IR, UV/Visible, multinuclear NMR), conductance and solubility product measurements. Single crystal
X-ray structure determination revealed ionic structures of both the complex salts having discrete ions along with lattice water
molecules. Crystal lattice is stabilized by a variety of hydrogen bonding interactions, i.e. O-H center dot center dot center dot O,
C-H center dot center dot center dot O and C-H center dot center dot center dot F involving second sphere coordination besides
pi-pi it interaction. Furthermore, packing analyses reveal that C-H-F interactions can manifest even in the presence of a large
number of heteroatom interactions.
Addresses: [Singh, A.; Sharma, R. P.; Venugopalan, P.] Panjab Univ, Dept Chem, Chandigarh 160014, India; [Aree, T.]
Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Reprint Address: Sharma, RP, Panjab Univ, Dept Chem, Chandigarh 160014, India.
Funding Agency
Grant Number
Council of Scientific and Industrial Research (CSIR)
01(2020)2005/EMR-II
Thai Government
TKK2555
Centre for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University
This work was supported by the Council of Scientific and Industrial Research (CSIR) vide grant no 01(2020)2005/EMR-II and
by the Thai Government Stimulus Package 2 (TKK2555), under the Project for the Establishment of a Comprehensive Centre for
Innovative Food, Health Products and Agriculture (PERFECTA) and the Centre for Petroleum, Petrochemicals and Advanced
Materials, Chulalongkorn University.
Times Cited: 0
Publisher: INDIAN ACAD SCIENCES
Publisher Address: C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
ISSN: 0253-4134
29-char Source Abbrev.: J CHEM SCI
ISO Source Abbrev.: J. Chem. Sci.
ISI Document Delivery No.: 662VR
Record 21 of 271
Author(s): Klinbunga, S (Klinbunga, S.); Yuvanatemiya, V (Yuvanatemiya, V.); Wongphayak, S (Wongphayak, S.); Khetpu, K
(Khetpu, K.); Menasveta, P (Menasveta, P.); Khamnamtong, B (Khamnamtong, B.)
Title: Genetic population differentiation of the blue swimming crab Portunus pelagicus (Portunidae) in Thai waters revealed by
RAPD analysis
Source: GENETICS AND MOLECULAR RESEARCH, 9 (3): 1615-1624 2010
Language: English
Author Keywords: Genetic diversity; Population structure; RAPD; Portunus pelagicus; Species-specific markers
KeyWords Plus: ABALONE HALIOTIS-ASININA; POLYMORPHIC DNA ANALYSIS; MOLECULAR MARKERS;
ARBITRARY PRIMERS; DIVERSITY; HETEROGENEITY; AUSTRALIA; CRUSTACEA; DECAPODA; GENERA
Abstract: Genetic diversity and population differentiation of the blue swimming crab, Portunus pelagicus, in Thailand were
analyzed by RAPD analysis. One hundred and twelve RAPD fragments were generated from 109 individuals of P. pelagicus using
OPA02, OPA14, OPB10, UBC122, and UBC158 primers. The percentage of polymorphic bands in each geographic sample and
that of each primer across overall samples were 72.7-85.0 and 92.0-100%, respectively. Large numbers of polymorphic bands
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found in the RAPD analysis suggested high genetic diversity of Thai P. pelagicus. The mean genetic distance between samples
across all primers was 0.0929-0.2471. Significant geographic heterogeneity was observed across samples overall and between
all pairs of geographic samples (P < 0.01 for. and P < 0.0001 for the exact test), indicating strong genetic differentiation of P.
pelagicus in Thai waters, despite its high potential of dispersal. Limited gene flow levels (0.44-1.19 individuals per generation)
of Thai P. pelagicus were also observed. A fine scale level of differentiation suggested that P. pelagicus from each geographic
sample in Thai waters should be regarded as a separate genetic population and treated as a different exploited stock.
Addresses: [Klinbunga, S.; Khamnamtong, B.] Natl Sci & Technol Dev Agcy, Aquat Mol Genet & Biotechnol Lab, Natl Ctr Genet
Engn & Biotechnol, Klongluang, Pathumthani, Thailand; [Klinbunga, S.; Menasveta, P.; Khamnamtong, B.] Chulalongkorn Univ,
Ctr Excellence Marine Biotechnol, Fac Sci, Bangkok, Thailand; [Yuvanatemiya, V.; Wongphayak, S.] Burapha Univ, Fac Marine
Technol, Chanthaburi, Thailand; [Khetpu, K.] Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok, Thailand; [Menasveta,
P.] Chulalongkorn Univ, Dept Marine Sci, Fac Sci, Bangkok, Thailand
Reprint Address: Khamnamtong, B, Natl Sci & Technol Dev Agcy, Aquat Mol Genet & Biotechnol Lab, Natl Ctr Genet Engn &
Biotechnol, Klong 1, Klongluang, Pathumthani, Thailand.
Funding Agency
Grant Number
National Center for Genetic Engineering and Biotechnology (BIOTEC)
National Science and Technology Development Agency (NSTDA), Thailand
Research supported by the National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and
Technology Development Agency (NSTDA), Thailand, with a grant awarded to S. Klinbunga.
Times Cited: 0
Publisher: FUNPEC-EDITORA
Publisher Address: RUA HUDSON 655, JARDIM CANADA, RIBEIRAO PRETO, SP, BRAZIL
ISSN: 1676-5680
DOI: 10.4238/vol9-3gmr886
29-char Source Abbrev.: GENET MOL RES
ISO Source Abbrev.: Genet. Mol. Res.
Subject Category: Biochemistry & Molecular Biology; Genetics & Heredity
ISI Document Delivery No.: 661VD
Record 22 of 271
Author(s): Sichaem, J (Sichaem, Jirapast); Surapinit, S (Surapinit, Serm); Siripong, P (Siripong, Pongpun); Khumkratok, S
(Khumkratok, Suttira); Jong-aramruang, J (Jong-aramruang, Jonkolnee); Tip-pyang, S (Tip-pyang, Santi)
Title: Two new cytotoxic isomeric indole alkaloids from the roots of Nauclea orientalis
Source: FITOTERAPIA, 81 (7): 830-833 OCT 2010
Language: English
Author Keywords: Nauclea orientalis; Indole alkaloid; Naucleaoral A; Naucleaoral B; Cytotoxicity; Antimalarial activity
Abstract: A pair of new isomeric indole alkaloids, naucleaorals A (1) and B (2) were isolated from the roots of Nauclea
orientalis. The structures of compounds 1 and 2 were fully characterized using spectroscopic data, and were tested for their
cytotoxicity (HeLa and KB cells) and antimalarial activity. Compound 1 showed significant cytotoxicity to HeLa cells with an
IC50 value of 4.0 mu g/mL, while compound 2 exhibited very modest cytotoxicity to both cell lines with IC50 values of 7.8 and
9.5 mu g/mL, respectively. Both compounds proved to be inactive in antimalarial assays (IC50>10.00 mu g/mL). (C) 2010
Elsevier B.V. All rights reserved.
Addresses: [Sichaem, Jirapast; Tip-pyang, Santi] Chulalongkorn Univ, Nat Prod Res Unit, Dept Chem, Fac Sci, Bangkok 10330,
Thailand; [Surapinit, Serm] Naresuan Univ Phayao, Dept Med Technol, Sch Allied Hlth Sci, Phayao 56000, Thailand; [Siripong,
Pongpun] Natl Canc Inst, Nat Prod Res Sect, Div Res, Bangkok 10400, Thailand; [Khumkratok, Suttira] Mahasarakham Univ,
Walai Rukhavej Bot Res Inst, Maha Sarakham 44000, Thailand; [Jong-aramruang, Jonkolnee] Burapha Univ, Dept Chem, Fac Sci,
Chon Buri 20231, Thailand
Reprint Address: Tip-pyang, S, Chulalongkorn Univ, Nat Prod Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Center for Petroleum, Petrochemical and Advanced Materials, Chulalongkorn University
The authors are grateful to the Graduate School of Chulalongkorn University for financial support. We also thank the Center for
Petroleum, Petrochemical and Advanced Materials, Chulalongkorn University for partially supporting this project.
Times Cited: 0
Publisher: ELSEVIER SCIENCE BV
Publisher Address: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN: 0367-326X
DOI: 10.1016/j.fitote.2010.05.004
29-char Source Abbrev.: FITOTERAPIA
ISO Source Abbrev.: Fitoterapia
Subject Category: Chemistry, Medicinal; Pharmacology & Pharmacy
ISI Document Delivery No.: 663EC
Record 23 of 271
Author(s): Tip-pyang, S (Tip-pyang, Santi); Limpipatwattana, Y (Limpipatwattana, Yawistha); Khumkratok, S (Khumkratok,
Suttira); Siripong, P (Siripong, Pongpan); Sichaem, J (Sichaem, Jirapast)
Title: A new cytotoxic 1-azaanthraquinone from the stems of Goniothalamus laoticus
Source: FITOTERAPIA, 81 (7): 894-896 OCT 2010
Language: English
Author Keywords: Goniothalamus laoticus; Cytotoxicity; 1-azaanthraquinone; Laoticuzanone A
KeyWords Plus: CHEMICAL-CONSTITUENTS
Abstract: A new 1-azaanthraquinone, named laoticuzanone A (1), and a synthetically known 3-methyl-1H-1-azaanthracene2,9,10-trione (2), together with four known compounds, Griffithazanone A (3), methyl sinapate (4), methyl p-coumarate (5), and
p-hydroxyphenylethyl p-coumarate (6) were isolated from the stems of Goniothalamus laoticus. Their structures were established
on the basis of spectroscopic data as well as comparisons with the previous literature data. Compound 1 showed the highest
cytotoxicity against KB and HeLa cells with IC50 values of 0.68 and 0.50 mu g/ml, respectively. (C) 2010 Elsevier B.V. All
rights reserved.
Addresses: [Tip-pyang, Santi; Limpipatwattana, Yawistha; Sichaem, Jirapast] Chulalongkorn Univ, Fac Sci, Dept Chem, Nat Prod
Res Unit, Bangkok 10330, Thailand; [Khumkratok, Suttira] Mahasarakham Univ, Walai Rukhavej Bot Res Inst, Maha Sarakham
44000, Thailand; [Siripong, Pongpan] Natl Canc Inst, Nat Prod Res Sect, Bangkok 10400, Thailand
Reprint Address: Tip-pyang, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Nat Prod Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center for Petroleum, Petrochemical, and Advanced Materials
The authors are grateful to Graduate School of Chulalongkorn University for the fellowships. The Center for Petroleum,
Petrochemical, and Advanced Materials also partially supports this project.
Times Cited: 0
ISSN: 0367-326X
DOI: 10.1016/j.fitote.2010.05.019
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Record 24 of 271
Author(s): Chomcheon, P (Chomcheon, Porntep); Wiyakrutta, S (Wiyakrutta, Suthep); Aree, T (Aree, Thammarat); Sriubolmas, N
(Sriubolmas, Nongluksna); Ngamrojanavanich, N (Ngamrojanavanich, Nattaya); Mahidol, C (Mahidol, Chulabhorn); Ruchirawat,
S (Ruchirawat, Somsak); Kittakoop, P (Kittakoop, Prasat)
Title: Curvularides A-E: Antifungal Hybrid Peptide-Polyketides from the Endophytic Fungus Curvularia geniculata
Source: CHEMISTRY-A EUROPEAN JOURNAL, 16 (36): 11178-11185 2010
Language: English
Author Keywords: antifungal agents; natural products; peptides; phytochemistry; polyketides
KeyWords Plus: ACTIVE SECONDARY METABOLITES; JASMONATE
Abstract: Five new hybrid peptide polyketides, curvularides A-E (1-5), were isolated from the endophytic fungus Curvularia
geniculata, which was obtained from the limbs of Catunaregam tomentosa. Structure elucidation for curvularides A E (1-5) was
accomplished by analysis of spectroscopic data, as well as by single-crystal X-ray crystallography. Curvularide B (2) exhibited
antifungal activity against Candida albicans, and it also showed synergistic activity with a fluconazole drug.
Addresses: [Mahidol, Chulabhorn; Ruchirawat, Somsak; Kittakoop, Prasat] Chulabhorn Grad Inst, Chulabhorn Res Inst, Bangkok
10210, Thailand; [Mahidol, Chulabhorn; Ruchirawat, Somsak; Kittakoop, Prasat] Ctr Environm Hlth Toxicol & Management
Chem ETM, Bangkok 10210, Thailand; [Chomcheon, Porntep] Chandrakasem Rajabhat Univ, Program Biotechnol, Fac Sci,
Bangkok 10900, Thailand; [Wiyakrutta, Suthep] Mahidol Univ, Fac Sci, Dept Microbiol, Bangkok 10400, Thailand; [Aree,
Thammarat; Ngamrojanavanich, Nattaya] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Sriubolmas,
Nongluksna] Chulalongkorn Univ, Fac Pharmaceut Sci, Dept Biochem & Microbiol, Bangkok 10330, Thailand; [Sriubolmas,
Nongluksna] Chulalongkorn Univ, Fac Pharmaceut Sci, Ctr Bioact Nat Prod Marine Organisms & Endophyt F, Bangkok 10330,
Thailand; [Mahidol, Chulabhorn; Ruchirawat, Somsak] Mahidol Univ, Inst Mol Biosci, Chulabhorn Res Ctr, Bangkok 10400,
Thailand
Reprint Address: Kittakoop, P, Chulabhorn Grad Inst, Chulabhorn Res Inst, Vibhavadi Rangsit Rd, Bangkok 10210, Thailand.
Funding Agency
Grant Number
DBG5180014
Center for Environmental Health, Toxicology and Management of Chemicals (ETM)
Mahidol University
Research Funds of the Faculty of Science with the Thai Government
TKK2555
Commission on Higher Education
P.K. is grateful to The Thailand Research Fund (grant no. DBG5180014) and the Center for Environmental Health, Toxicology
and Management of Chemicals (ETM) for financial support. SW: is supported by a Mahidol University research grant, and T.A.
is supported by the the Research Funds of the Faculty of Science with the Thai Government Stimulus Package 2 (TKK2555),
under the Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture
(PERFECTA). N.S. acknowledges a grant from the Commission on Higher Education through BNPME. We thank P. Intachote, S.
Sengsai, and B. Saimanee for the cytotoxicity test.
Times Cited: 0
ISSN: 0947-6539
DOI: 10.1002/chem.201000652
29-char Source Abbrev.: CHEM-EUR J
ISO Source Abbrev.: Chem.-Eur. J.
ISI Document Delivery No.: 665DN
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Record 25 of 271
Author(s): Sutcharit, C (Sutcharit, Chirasak); Naggs, F (Naggs, Fred); Panha, S (Panha, Somsak)
Title: A FIRST RECORD OF THE FAMILY CERASTIDAE IN THAILAND, WITH A DESCRIPTION OF A NEW SPECIES
(PULMONATA: ORTHURETHRA: CERASTIDAE)
Source: RAFFLES BULLETIN OF ZOOLOGY, 58 (2): 251-258 AUG 31 2010
Language: English
Author Keywords: Cerastidae; systematics; taxonomy; anatomy; Orthurethra; Pulmonata; Southeast Asia; Thailand
KeyWords Plus: LAND SNAILS; STYLOMMATOPHORA; CAMAENIDAE
Abstract: This first assessment of the status of the poorly known family Cerastidae in Thailand was made by comparing Thai
material with types and additional specimens from natural history museums in Europe. Rhachistia sulphurea (Tomlin & Peile,
1930) and Amimopina subangulatus (Pfeiffer, 1862) were identified and a new species of Rhachistia from Thailand was
recognised. We re-describe A. subangulatus and describe the new species Rhachistia conformalis Sutcharit & Panha, new species,
which has a small, thin, elongately conic, dextral, yellowish-white to creamy ground coloured shell. Shell ornamentation consists
of two rows of blackish spots and two spiral bands on the lower periphery. Radular teeth are typical of cerastids. The penial
appendix is very long, being about twice that of the vaginal length, proximally thin, distally enlarged and of a cylindrical shape.
The penis is short, small, proximally cylindrical and distally forming a swollen globular structure. The vagina is large, long and
cylindrical in shape with blackish pigmentation along almost its entire length. The bud-like shaped gametolytic sac is very short.
Addresses: [Sutcharit, Chirasak; Panha, Somsak] Chulalongkorn Univ, Fac Sci, Dept Biology, Anim Systemat Res Unit, Bangkok
10330, Thailand; [Naggs, Fred] Nat Hist Museum, Dept Zool, London SW7 5BD, England
Reprint Address: Panha, S, Chulalongkorn Univ, Fac Sci, Dept Biology, Anim Systemat Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
CHE-RES-RG Limestone Biodiversity Project
Darwin Initiative
15/018
Natural History Museum, London
TRF-MRG4980201
BRT-R 252108
RES-A1B1-7
SP2-TKK2555-PERFECTA
We thank the staff of Kaeng Kracharn and Khao Nan National Parks for making the field work possible. We are also grateful to
R. Janssen (SMF, Frankfurt), R. G. Moolenbeek (ZMA, Amsterdam), and H. Wood and J. Gallichan (NMW, Cardiff) for kindly
permitting the authors to examine specimens and for providing access to literature resources. We are especially grateful to T.
Asami, P. Tongkerd, A. Wiwegweaw, and the Animal Systematics Research Unit members for assistance in field collecting and
providing key references. We also thank H. Taylor (NHM, London) for photographs of the type specimens. This project was
supported by the TRF-MRG4980201, the BRT-R 252108, the CHE-RES-RG Limestone Biodiversity Project, the Darwin
Initiative (project 15/018), the Natural History Museum, London, the RES-A1B1-7, and the SP2-TKK2555-PERFECTA and
The Rachadapiseksompoj Fund, Chulalongkorn University.
Times Cited: 0
Publisher: NATL UNIV SINGAPORE, SCHOOL BIOLOGICAL SCIENCES
Publisher Address: DEPT ZOOLOGY, KENT RIDGE, SINGAPORE 0511, SINGAPORE
ISSN: 0217-2445
29-char Source Abbrev.: RAFFLES BULL ZOOL
ISO Source Abbrev.: Raffles Bull. Zool.
ISI Document Delivery No.: 657NQ
Record 26 of 271
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Author(s): Somboonwiwat, K (Somboonwiwat, Kunlaya); Chaikeeratisak, V (Chaikeeratisak, Vorrapon); Wang, HC (Wang,
Hao-Ching); Lo, CF (Lo, Chu Fang); Tassanakajon, A (Tassanakajon, Anchalee)
Title: Proteomic analysis of differentially expressed proteins in Penaeus monodon hemocytes after Vibrio harveyi infection
Source: PROTEOME SCIENCE, 8: Art. No. 39 JUL 13 2010
Language: English
KeyWords Plus: BLACK TIGER SHRIMP; YELLOW-HEAD-VIRUS; FENNEROPENAEUS-CHINENSIS;
GENE-EXPRESSION; LITOPENAEUS-VANNAMEI; MOLECULAR-CLONING; BINDING-PROTEIN; EST APPROACH;
PHAGOCYTOSIS; DISCOVERY
Abstract: Background: Viral and bacterial diseases can cause mass mortalities in commercial shrimp aquaculture. In contrast to
studies on the antiviral response, the responses of shrimps to bacterial infections by high throughput techniques have been reported
only at the transcriptional level and not at the translational level. In this study, a proteomic analysis of shrimp hemocytes to
identify differentially expressed proteins in response to a luminous bacterium Vibrio harveyi was evaluated for its feasibility and
is reported for the first time.
Results: The two-dimensional gel electrophoresis (2-DE) patterns of the hemocyte proteins from the unchallenged and V. harveyi
challenged shrimp, Penaeus monodon, at 24 and 48 h post infection were compared. From this, 27 differentially expressed protein
spots, and a further 12 weakly to non-differentially regulated control spots, were selected for further analyses by the LC-ESIMS/MS. The 21 differentially expressed proteins that could be identified by homologous annotation were comprised of proteins
that are directly involved in the host defense responses, such as hemocyanin, prophenoloxidase, serine proteinase-like protein,
heat shock protein 90 and alpha-2-macroglobulin, and those involved in signal transduction, such as the14-3-3 protein epsilon and
calmodulin. Western blot analysis confirmed the up-regulation of hemocyanin expression upon bacterial infection. The expression
of the selected proteins which were the representatives of the down-regulated proteins (the 14-3-3 protein epsilon and alpha2-macroglobulin) and of the up-regulated proteins (hemocyanin) was further assessed at the transcription level using real-time
RT-PCR.
Conclusions: This work suggests the usefulness of a proteomic approach to the study of shrimp immunity and revealed hemocyte
proteins whose expression were up regulated upon V. harveyi infection such as hemocyanin, arginine kinase and down regulated
such as alpha-2-macroglobulin, calmodulin and 14-3-3 protein epsilon. The information is useful for understanding the immune
system of shrimp against pathogenic bacteria.
Addresses: [Somboonwiwat, Kunlaya; Chaikeeratisak, Vorrapon; Tassanakajon, Anchalee] Chulalongkorn Univ, Ctr Excellence
Mol Biol & Genom Shrimp, Dept Biochem, Fac Sci, Bangkok, Thailand; [Wang, Hao-Ching] Acad Sinica, Inst Biol Chem, Taipei,
Taiwan; [Lo, Chu Fang] Natl Taiwan Univ, Inst Zool, Coll Life Sci, Taipei 10764, Taiwan
Reprint Address: Tassanakajon, A, Chulalongkorn Univ, Ctr Excellence Mol Biol & Genom Shrimp, Dept Biochem, Fac Sci,
Bangkok, Thailand.
Funding Agency
Grant Number
Thailand National Center for Genetic Engineering and Biotechnology (BIOTEC)
Development of New Faculty Staff, the Faculty of Science, Chulalongkorn University RES-A1B1-11
Thai Government Stimulus Package 2
TKK2555
TRF
We thank Dr. Robert D. J. Butcher for critical reading the manuscript. Proteomic mass spectrometry analyses were performed by
the Core Facilities for Proteomics Research located at the Institute of Biological Chemistry, Academia Sinica, Taiwan ROC.
This work was financially supported by grants from the Thailand National Center for Genetic Engineering and Biotechnology
(BIOTEC) and from the Thailand Research Fund (TRF) to Kunlaya Somboonwiwat. Support from Chulalongkorn University,
through the Ratchadaphisek Somphot Endowment Grants for Development of New Faculty Staff, the Faculty of Science,
Chulalongkorn University (Grant No. RES-A1B1-11) and from the Thai Government Stimulus Package 2 (TKK2555), under
PERFECTA, are acknowledged with thanks. The scholarship from TRF under the Royal Golden Jubilee Ph.D. program to
Vorrapon Chaikeeratisak is also acknowledged.
Times Cited: 0
Publisher: BIOMED CENTRAL LTD
Publisher Address: 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
ISSN: 1477-5956
Article Number: 39
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DOI: 10.1186/1477-5956-8-39
29-char Source Abbrev.: PROTEOME SCI
ISO Source Abbrev.: Proteome Sci.
Subject Category: Biochemical Research Methods
ISI Document Delivery No.: 658QM
Record 27 of 271
Author(s): Tep-areenan, P (Tep-areenan, Patcharin); Sawasdee, P (Sawasdee, Pattara); Randall, M (Randall, Michael)
Title: Possible Mechanisms of Vasorelaxation for 5,7-Dimethoxyflavone from Kaempferia parviflora in the Rat Aorta
Source: PHYTOTHERAPY RESEARCH, 24 (10): 1520-1525 OCT 2010
Language: English
Author Keywords: Kaempferia parviflora; 5,7-dimethoxyflavone; vasorelaxation; endothelium; K+ channels; Ca2+ channels;
aorta
KeyWords Plus: NITRIC-OXIDE; ENDOTHELIAL DYSFUNCTION; ETHANOLIC EXTRACT; VASCULAR-DISEASE;
THORACIC AORTA; SMOOTH-MUSCLE; FLAVONOIDS; CONTRACTION; ACTIVATION; CHANNELS
Abstract: The present study investigated the vascular effects of 5,7-dimethoxyflavone (DMF), isolated from the rhizomes of
Kaempferia parviflora (KP), on rat isolated aortic rings and its possible mechanisms. DMF (1-100 mu M) caused concentrationdependent relaxations in aortic rings precontracted with methoxamine. This effect was significantly reduced by removal of the
endothelium, and after pretreatment with N-G-nitro-L-arginine methyl ester (L-NAME, 300 mu M), indomethacin (10 mu M) and
1H-[1,2,4] oxadiazolo-[4,3-a]quinoxalin-1-one (ODQ, 10 mu M), but not 9-(tetrahydro-2-furanyl)-9H-purine-6-amine (SQ22536,
100 mu M). Relaxant responses to DMF were significantly inhibited by high KCl (60 mM) in both endothelium-intact and
-denuded rings. In addition, the relaxations to DMF were significantly reduced by pretreatment with tetraethylammonium (TEA, 5
mM), glibenclamide (10 mu M), 4-aminopyridine (1 mM) or barium chloride (10 mu M). Preincubation with DMF (10 and 100
mu M) for 30 min significantly inhibited the contractile responses to CaCl2 in a Ca2+-free, high K+ buffer. The present study
demonstrated that DMF causes endothelium-dependent relaxation that is partly mediated by NO-cGMP and cyclooxygenase
pathways. Interestingly, DMF-induced responses are mainly due to increasing K+ efflux, and inhibition of Ca2+ influx from the
extracellular space. The vasodilator effects of DMF provide experimental support for the potential use of KP as a medical plant in
the treatment of cardiovascular diseases. Copyright (c) 2010 John Wiley & Sons, Ltd.
Addresses: [Tep-areenan, Patcharin] Srinakharinwirot Univ, Dept Physiol, Fac Med, Bangkok 10110, Thailand; [Sawasdee,
Pattara] Chulalongkorn Univ, Nat Prod Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Sawasdee, Pattara]
Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Randall, Michael] Univ Nottingham, Sch Med,
Sch Biomed Sci, Nottingham NG7 2UH, England
Reprint Address: Tep-areenan, P, Srinakharinwirot Univ, Dept Physiol, Fac Med, Sukhumvit 23, Bangkok 10110, Thailand.
Funding Agency
Grant Number
MRG4980018
MRG5080043
National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials
This study was funded by The Thailand Research Fund (MRG4980018 and MRG5080043) and the National Center of
Excellence for Petroleum, Petrochemicals and Advanced Materials. We would like to express our deepest gratitude to Dr
Alfredo Villarroel for improving the English. We also thank Mr Phongphat Wetchasit for his technical support.
Times Cited: 0
Publisher: JOHN WILEY & SONS LTD
Publisher Address: THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
ISSN: 0951-418X
DOI: 10.1002/ptr.3164
29-char Source Abbrev.: PHYTOTHER RES
ISO Source Abbrev.: Phytother. Res.
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ISI Document Delivery No.: 660QF
Record 28 of 271
Author(s): Kitkumthorn, N (Kitkumthorn, N.); Yanatatsaneejit, P (Yanatatsaneejit, P.); Rabalert, J (Rabalert, J.); Dhammawipark,
C (Dhammawipark, C.); Mutirangura, A (Mutirangura, A.)
Title: Association of P53 codon 72 polymorphism and ameloblastoma
Source: ORAL DISEASES, 16 (7): 631-635 OCT 2010
Language: English
Author Keywords: ameloblastoma; P53 codon 72 polymorphism; genetic susceptibility
KeyWords Plus: HUMAN-PAPILLOMAVIRUS; NASOPHARYNGEAL CARCINOMA; CANCER SUSCEPTIBILITY;
ODONTOGENIC-TUMORS; CERVICAL-CANCER; BLADDER-CANCER; RISK; GENE; HUMAN-P53; PROTEIN
Abstract: Objective:
To test the hypothesis that P53 codon 72 polymorphism was associated with an increased risk of developing ameloblastoma in the
Thai population.
Materials and methods:
Seventy-eight ameloblastomas and 94 healthy controls were genotyped for the P53 codon 72 by polymerase chain reactionrestriction fragment length polymorphism (PCR-RFLP).
Results:
The frequencies of the Arg/Arg, Arg/Pro and Pro/Pro genotypes were 28.72%, 50.00% and 21.28%, respectively, in the controls;
and 44.87%, 51.28% and 3.85%, respectively, in ameloblastomas. Therefore, P53 Arg is an ameloblastoma-susceptible allele
[OR (95% CI) = 2.06 (1.28-3.31), P = 0.002]. Sex-adjusted OR (95% CI) is 2.08 (1.29-3.34), P = 0.002; and adjusted OR by
clinical type (95% CI) is 2.04 (1.34-3.13), P < 10-3. Therefore, the increased risk associated with P53 Arg may not be influenced
by either the sex of patients or clinical characteristics of the tumours. Moreover, when compared with homozygous P53 Pro,
people who carried the Arg allele had a remarkably high risk of developing ameloblastoma [adjusted OR (95% CI) = 7.26
(2.34-23.41), P < 10-3].
Conclusion:
The Arg allele of P53 gene codon 72 may increase susceptibility, and P53 may be important in the aetiology of ameloblastoma.
Addresses: [Kitkumthorn, N.] Mahidol Univ, Fac Dent, Dept Oral Pathol, Bangkok 10400, Thailand; [Yanatatsaneejit, P.;
Rabalert, J.; Dhammawipark, C.] Chulalongkorn Univ, Fac Sci, Dept Bot, Bangkok 10330, Thailand; [Mutirangura, A.]
Chulalongkorn Univ, Fac Med, Dept Anat, Ctr Excellence Mol Genet Canc & Human Dis, Bangkok 10330, Thailand
Reprint Address: Kitkumthorn, N, Mahidol Univ, Fac Dent, Dept Oral Pathol, Bangkok 10400, Thailand.
Funding Agency
Grant Number
Center of Excellence in Molecular Genetics of Cancer and Human Diseases
Department of Anatomy, Faculty of Medicine, Chulalongkorn University
TRF-MRG
MRG5180242
The authors are grateful to Mr Dusit Bumalee for excellent technical assistance. This work was supported by the Center of
Excellence in Molecular Genetics of Cancer and Human Diseases, Department of Anatomy, Faculty of Medicine, Chulalongkorn
University, TRF-MRG young scientific researcher grant No. MRG5180242 and TRF senior research scholar grant.
Times Cited: 0
ISSN: 1354-523X
DOI: 10.1111/j.1601-0825.2010.01664.x
29-char Source Abbrev.: ORAL DIS
ISO Source Abbrev.: Oral Dis.
Subject Category: Dentistry, Oral Surgery & Medicine
ISI Document Delivery No.: 650EI
Record 29 of 271
Author(s): Wanbayor, R (Wanbayor, Raina); Ruangpornvisuti, V (Ruangpornvisuti, Vithaya)
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Title: Adsorption of CO, H-2, N2O, NH3 and CH4 on the anatase TiO2 (001) and (101) surfaces and their competitive
adsorption predicted by periodic DFT calculations
Source: MATERIALS CHEMISTRY AND PHYSICS, 124 (1): 720-725 NOV 1 2010
Language: English
Author Keywords: Anatase TiO2 (001) and (101) surfaces; Adsorption abilities of gases; Periodic DFT; Co-adsorption
KeyWords Plus: RUTILE 110 SURFACES; TITANIUM-DIOXIDE; AB-INITIO; ELECTRON-DENSITY; PHOSPHONIC ACID;
WATER LAYERS; SPECTROSCOPY; REDUCTION; TIO2(101); CRYSTALS
Abstract: The adsorption of CO, H-2, N2O, NH3 and CH4 gases on the anatase TiO2 (001) and (101) surfaces was investigated
by two-dimensionally periodic slab model DFT calculation. The most energetically favorable positions of these gases on the
anatase TiO2 surface computed using two different optimization models were obtained. The relative adsorption energies of these
gases on the anatase TiO2 (001) and (101) surfaces are in orders: NH3 (Delta E-ads = 26.6 kcal mol(-1)) >> CO (Delta E-ads =
9.7 kcal mol(-1)) >> H-2 approximate to CH4 approximate to N2O and NH3 (Delta E-ads = 24.3 kcal mol(-1)) >> CO (Delta
E-ads = 6.8 kcal mol(-1)) approximate to N2O > CH4, respectively. The N2O energetically likes better to adsorb on the TiO2
(101) than the (001) surface. The H-2 dislike to adsorb on the TiO2 (101) but weakly adsorb on the TiO2 (001) surface. The CH4
weakly adsorbs on the TiO2 (001) surface but very weakly adsorbs on the TiO2 (101). Two configurations for co-adsorption of
N2O and CO as [O=N=N center dot center dot center dot CO] and [CO center dot center dot center dot O=N=N] were found. (C)
2010 Elsevier B.V. All rights reserved.
Addresses: [Wanbayor, Raina; Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit,
Reprint Address: Ruangpornvisuti, V, Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
TRF
PHD/0244/2549
National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency,
Thailand
The Royal Golden Jubilee (RGJ) grant, number PHD/0244/2549 supported by TRF to RW is acknowledged. We also thank the
Thailand Research Fund (TRF) and the National Nanotechnology Center (NANOTEC), National Science and Technology
Development Agency, Thailand for partial support of this work.
Times Cited: 0
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2010.07.043
29-char Source Abbrev.: MATER CHEM PHYS
ISO Source Abbrev.: Mater. Chem. Phys.
Subject Category: Materials Science, Multidisciplinary
ISI Document Delivery No.: 660AB
Record 30 of 271
Author(s): Tassanakajon, A (Tassanakajon, Anchalee); Amparyup, P (Amparyup, Piti); Somboonwiwat, K (Somboonwiwat,
Kunlaya); Supungul, P (Supungul, Premruethai)
Title: Cationic Antimicrobial Peptides in Penaeid Shrimp
Source: MARINE BIOTECHNOLOGY, 12 (5): 487-505 OCT 2010
Language: English
Document Type: Review
Author Keywords: Antimicrobial peptides; Penaeid shrimp; Penaeidin; Crustin; Anti-lipopolysaccharide factor
KeyWords Plus: BLACK TIGER SHRIMP; ANTI-LPS FACTOR; CRAYFISH PACIFASTACUS-LENIUSCULUS;
ANTILIPOPOLYSACCHARIDE FACTOR ALF; 11.5-KDA ANTIBACTERIAL PEPTIDE; PRAWN MARSUPENAEUSJAPONICUS; DOMAIN-CONTAINING PROTEIN; PACIFIC WHITE SHRIMP; CRUSTIN-LIKE GENE; LITOPENAEUS-
26 of 87
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VANNAMEI
Abstract: Penaeid shrimp aquaculture has been consistently affected worldwide by devastating diseases that cause a severe loss
in production. To fight a variety of harmful microbes in the surrounding environment, particularly at high densities (of which
intensive farming represents an extreme example), shrimps have evolved and use a diverse array of antimicrobial peptides
(AMPs) as part of an important first-line response of the host defense system. Cationic AMPs in penaeid shrimps composed of
penaeidins, crustins, and anti-lipopolysaccharide factors are comprised of multiple classes or isoforms and possess antibacterial
and antifungal activities against different strains of bacteria and fungi. Shrimp AMPs are primarily expressed in circulating
hemocytes, which is the main site of the immune response, and hemocytes expressing AMPs probably migrate to infection sites to
fight against pathogen invasion. Indeed, most AMPs are produced as early as the nauplii developmental stage to protect shrimp
larvae from infections. In this review, we discuss the sequence diversity, expression, gene structure, and antimicrobial activities
of cationic AMPs in penaeid shrimps. The information available on antimicrobial activities indicates that these shrimp AMPs
have potential therapeutic applications in the control of disease problems in aquaculture.
Addresses: [Tassanakajon, Anchalee; Amparyup, Piti; Somboonwiwat, Kunlaya; Supungul, Premruethai] Chulalongkorn Univ,
Fac Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom Shrimp, Bangkok 10330, Thailand; [Amparyup, Piti; Supungul,
Premruethai] NSTDA, Natl Ctr Genet Engn & Biotechnol BIOTEC, Pathum Thani 12120, Thailand
Reprint Address: Tassanakajon, A, Chulalongkorn Univ, Fac Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom Shrimp,
Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand National Center for Genetic Engineering and Biotechnology
We thank Dr. Robert Butcher for a critical reading of the manuscript. The work on antimicrobial peptides in P. monodon is
supported by grants from the Commission on Higher Education and Thailand National Center for Genetic Engineering and
Biotechnology.
Times Cited: 0
Publisher: SPRINGER
Publisher Address: 233 SPRING ST, NEW YORK, NY 10013 USA
ISSN: 1436-2228
DOI: 10.1007/s10126-010-9288-9
29-char Source Abbrev.: MAR BIOTECHNOLOG
ISO Source Abbrev.: Mar. Biotechnol.
Subject Category: Biotechnology & Applied Microbiology; Marine & Freshwater Biology
ISI Document Delivery No.: 659UR
Record 31 of 271
Author(s): Jitjumnong, P (Jitjumnong, Paramee); Wanichwecharungruang, SP (Wanichwecharungruang, Supason P.);
Arayachukeat, S (Arayachukeat, Sunatda)
Title: Self-Assembly of Negatively Charged Poly(vinyl alcohol) Derivatives
Source: MACROMOLECULAR RESEARCH, 18 (8): 730-736 AUG 2010
Language: English
Author Keywords: poly(vinyl alcohol); negatively charged particle; butane sulfonate; self-assembly
KeyWords Plus: CROSS-LINKED POLYVINYLALCOHOL; DRUG-DELIVERY SYSTEMS; GENE DELIVERY;
CONTROLLED-RELEASE; NANOPARTICLES; NANOSPHERES; HYDROGELS; POLYMERS; PVA
Abstract: This paper reports the relationship between the degree of negatively charged groups on the poly(4-vinyloxybutane
sulfonate-co-vinyl alcohol) or PVA-BS and poly(4-vinyloxybutane sulfonate-co-vinyloxydodecane-co-vinyl alcohol) or
PVA-12C-BS polymers and their self-assembled particles' morphologies. With grafted hydrophobic moieties (PVA-12C-BS
polymers), the size of the self-assembled particles decreased with increasing levels of butane sulfonate substitution. However,
with no hydrophobic moiety grafted (PVA-BS), the size of the self-assembled particles increased with increasing levels of butane
sulfonate substitution. The response of the PVA-BS and PVA-12C-BS polymeric particles to the loading of a model hydrophobic
compound, 2-ethylhexyl-4-methoxycinnamate (EHMC), was markedly different. With the drug as a hydrophobic core,
EHMC-loaded PVA-BS particles were smaller in size and more stable than the unloaded particles. In contrast, the EHMC-loaded
PVA-12C-BS particles were larger than the corresponding unloaded particles.
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Addresses: [Jitjumnong, Paramee; Wanichwecharungruang, Supason P.] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok
10330, Thailand; [Jitjumnong, Paramee; Arayachukeat, Sunatda] Chulalongkorn Univ, Natl Ctr Petr Petrochem & Adv Mat,
Reprint Address: Wanichwecharungruang, SP, Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Commission of Higher Education BRG5280004
The authors thank the Commission of Higher Education-Thailand Research Fund (BRG5280004) and the
Ratchadaphiseksomphot endowment fund from Chulalongkorn University for financial support.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1598-5032
DOI: 10.1007/s13233-010-0816-2
29-char Source Abbrev.: MACROMOL RES
ISO Source Abbrev.: Macromol. Res.
Subject Category: Polymer Science
ISI Document Delivery No.: 658DT
Record 32 of 271
Author(s): Chaitree, W (Chaitree, Wasu); Jiemsirilers, S (Jiemsirilers, Sirithan); Mekasuwandumrong, O (Mekasuwandumrong,
Okorn); Praserthdam, P (Praserthdam, Piyasan); Charinpanitkul, T (Charinpanitkul, Tawatchai); Panpranot, J (Panpranot,
Joongjai)
Title: Effect of Milling on the Formation of Nanocrystalline chi-Al2O3 from Gibbsite
Source: JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 93 (10): 3377-3383 OCT 2010
Language: English
KeyWords Plus: PHASE-TRANSFORMATION BEHAVIOR; CHI-CRYSTALLINE PHASES; X-RAY-DIFFRACTION;
THERMAL-DECOMPOSITION; ALPHA-ALUMINA; SOLVOTHERMAL SYNTHESIS; KINETICS; TEMPERATURE;
DEHYDRATION; HYDROXIDES
Abstract: Gibbsite (FG) with mean particle diameter (d(50)=13 mu m) was milled in an attrition mill for 12 and 24 h using
alumina balls as grinding media and calcined at different temperatures in the range of 350 degrees-600 degrees C. The properties
of the alumina obtained were determined by X-ray diffraction, N-2 physisorption, thermogravimetric/differential thermal analyses,
and transmission electron microscopy. Without milling, the alumina obtained normally contained the mixed phases between
gamma- and chi-phase alumina. On the other hand, high purity of nanocrystalline chi-phase alumina (100 wt%) can be produced
by calcination of the 24-h milled FG at 600 degrees C. The isothermal kinetics measurements revealed that the rate constant (k)
for phase transformation increased as the particle size of gibbsite decreased and the calculated activation energy for
transformation from FG to alumina decreased from 20.6 to 14.7 and 6.8 kJ/mol after milling for 12 and 24 h, respectively. The
physical properties of nanocrystalline chi-alumina obtained by the calcination of milled FG were comparable to those produced
by the solvothermal method. The present results offer a simple way to prepare a large amount of pure chi-phase alumina for
particular industrial applications.
Addresses: [Chaitree, Wasu; Praserthdam, Piyasan; Charinpanitkul, Tawatchai; Panpranot, Joongjai] Chulalongkorn Univ, Fac
Engn, Dept Chem Engn, Bangkok 10330, Thailand; [Jiemsirilers, Sirithan] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok
10330, Thailand; [Mekasuwandumrong, Okorn] Silpakorn Univ, Fac Engn & Ind Technol, Dept Chem Engn, Nakhon Pathom
73000, Thailand
Reprint Address: Panpranot, J, Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Bangkok 10330, Thailand.
Funding Agency
Grant Number
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Office of Higher Education Commission, Ministry of Education, Thailand
This work was financially supported by the Thailand Research Fund (TRF) and the Office of Higher Education Commission,
Ministry of Education, Thailand.
Times Cited: 0
ISSN: 0002-7820
DOI: 10.1111/j.1551-2916.2010.03849.x
29-char Source Abbrev.: J AMER CERAM SOC
ISO Source Abbrev.: J. Am. Ceram. Soc.
Subject Category: Materials Science, Ceramics
ISI Document Delivery No.: 660JN
Record 33 of 271
Author(s): Kritayakornupong, C (Kritayakornupong, Chinapong); Vchirawongkwin, V (Vchirawongkwin, Viwat); Rode, BM
(Rode, Bernd M.)
Title: Determination of Structure and Dynamics of the Solvated Bisulfide (HS-) Ion by ab Initio QMCF Molecular Dynamics
Source: JOURNAL OF PHYSICAL CHEMISTRY B, 114 (40): 12883-12887 OCT 14 2010
Language: English
KeyWords Plus: 2ND DISSOCIATION-CONSTANT; HYDROGEN-SULFIDE; VIBRATIONAL FREQUENCIES;
ELECTRONIC-STRUCTURE; ACID DISSOCIATION; AQUEOUS-SOLUTION; WATER CLUSTERS; H2S; SIMULATION;
ENERGY
Abstract: The hydration structure of the bisulfide (HS-) ion in dilute aqueous solution was characterized by means of an ab initio
quantum mechanical charge field (QMCF) molecular dynamics simulation at the Hartree Pock level employing Dunning double-c
plus polarization function (DZP) basis sets. An average H S hood distance of 1.35 angstrom resulted from the simulation and a
hydration shell located at 2.42 angstrom S-HS center dot center dot center dot H-w and 3.97 angstrom HS- distances,
respectively. At the sulfur site, the average coordination number is 5.9 :1: 1.1, while the value for the hydrogen site is 9.2 +/- 1.6.
The calculated HHS--S-HS- stretching frequency of 2752 cm obtained from the QMCF MD simulation is in good agreement with
that reported from the Raman spectrum (2570 cm-(1)) only if a scaling factor of 0.89 is applied. The stability of the
nondissociated HS- structure is reflected by the force constants of 436.1 and 4.5 N/m determined for the HHS--S-HS- and H-HS
center dot center dot center dot O-w bonds. respectively. A weak structure-making effect of the hydrated HS- ion results from the
mean residence times of 1.5 and 2.1 ps of coordinated water molecules at the sulfur and hydrogen sites of the HS- ion,
respectively.
Addresses: [Kritayakornupong, Chinapong] King Mongkuts Univ Technol Thonburi, Dept Chem, Fac Sci, Bangkok 10140,
Thailand; [Vchirawongkwin, Viwat] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Rode, Bernd M.]
Innsbruck Univ, Theoret Chem Div, Inst Gen Inorgan & Theoret Chem, A-6020 Innsbruck, Austria
Reprint Address: Kritayakornupong, C, King Mongkuts Univ Technol Thonburi, Dept Chem, Fac Sci, Bangkok 10140, Thailand.
Funding Agency
Grant Number
Thailand Commission on Higher Education (ASEA-UNINET)
Austrian Science Foundation (FMF)
Faculty of Science, Chuhilorigkorn University
RES A1 B1-19
Financial support for this work by the Thailand Research Fund (TRF) and Thailand Commission on Higher Education (ASEAUNINET fellowships for C.K. and V.V.) are gratefully acknowledged and B.M.R. acknowledges support by the Austrian
Science Foundation (FMF). V.V. acknowledges additional support by Faculty of Science, Chuhilorigkorn University (Grant
Number RES A1 B1-19).
Times Cited: 0
23/11/2553 18:36
Publisher: AMER CHEMICAL SOC
Publisher Address: 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
ISSN: 1520-6106
DOI: 10.1021/jp104856q
29-char Source Abbrev.: J PHYS CHEM B
ISO Source Abbrev.: J. Phys. Chem. B
Subject Category: Chemistry, Physical
ISI Document Delivery No.: 659DC
Record 34 of 271
Author(s): Senklang, P (Senklang, Porrarud); Anprung, P (Anprung, Pranee)
Title: OPTIMIZING ENZYMATIC EXTRACTION OF Zn-CHLOROPHYLL DERIVATIVES FROM PANDAN LEAF USING
RESPONSE SURFACE METHODOLOGY
Source: JOURNAL OF FOOD PROCESSING AND PRESERVATION, 34 (5): 759-776 OCT 2010
Language: English
KeyWords Plus: ZINC COMPLEX-FORMATION; HEATED GREEN VEGETABLES; ANTIOXIDANT ACTIVITY; JUICE;
COLOR; YIELD; OPTIMIZATION; DEGRADATION; PECTINASE; CLARIFICATION
Abstract: The objective of this research was to investigate the formation of Zn-chlorophyll complexes in the pandan leaf with the
goal of producing a greener, more stable and natural chlorophyll colorant using enzymatic extraction to produce the highest yield
of Zn-chlorophyll derivatives. The reaction of chlorophyll compounds in fresh pandan leaves with 300 ppm zinc chloride at pH 5
and 110C for 15 min produced the optimal conditions for Zn-chlorophyll complex formation. The commercial enzyme pectinase
(Pectinex Ultra SP-L) assisted in the extraction process and an experimental design using response surface methodology was
further optimized for the highest yield. The optimum conditions were 2.3-2.5% v/w pectinase, 240-260 min incubation time and
extraction repeated twice at 35C. Under the optimum conditions, the extraction yields of green chlorophyll derivatives and
antioxidant values were increased 17.31- and 1.92-fold, respectively, over untreated samples.
Addresses: [Senklang, Porrarud; Anprung, Pranee] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand
Reprint Address: Anprung, P, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Graduate school of Chulalongkorn University
The authors would like to acknowledge the Integration Project: Innovations for the improvement of food safety and food quality
for new world economy (government research budget) and graduate school of Chulalongkorn University for financial support.
The authors gratefully acknowledge the assistance of N. Hollis, M. D.
Times Cited: 0
ISSN: 0145-8892
DOI: 10.1111/j.1745-4549.2009.00393.x
29-char Source Abbrev.: J FOOD PROCESS PRESERV
ISO Source Abbrev.: J. Food Process Preserv.
Subject Category: Food Science & Technology
ISI Document Delivery No.: 660JX
Record 35 of 271
Author(s): Suksomtip, M (Suksomtip, Maneewan); Ukrisdawithid, S (Ukrisdawithid, Saowaluck); Bhusawang, P (Bhusawang,
Parichart); Pongsamart, S (Pongsamart, Sunanta)
Title: PHENOLIC COMPOUND CONTENT, ANTIOXIDANT AND RADICAL-SCAVENGING PROPERTIES OF
METHANOLIC EXTRACTS FROM THE SEED COAT OF CERTAIN THAI TAMARIND CULTIVARS
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Source: JOURNAL OF FOOD BIOCHEMISTRY, 34 (5): 916-931 OCT 2010
Language: English
KeyWords Plus: IN-VITRO; LIPID-PEROXIDATION; VEGETABLES; FRUIT; VIVO; PROANTHOCYANIDINS;
FLAVONOIDS; TANNINS; CANCER; DAMAGE
Abstract: Methanolic extracts from the seed coats of five major tamarinds (Srichomphu, Sithong-nak, Sithong-bao, Priao-yak and
Khanti) cultivated in Thailand were investigated for their content of phenolic compounds and their antioxidative properties.
Antioxidative properties were evaluated by various different methods: scavenging effect on the 2,2-diphenyl-1-picrylhydrazyl
(DPPH) and hydroxyl radical, anti-lipid peroxidation and reducing power assay. The phenolic compound contents were
determined by spectrophotometric methods. Extract of Priao-yak with the highest tannin content showed the strongest reducing
power, while extract of Khanti with the highest proanthocyanidin content revealed high scavenging ability on both DPPH and
hydroxyl radicals. Stronger antioxidative activity measured by most assays was noted for the extract of Sithong-bao with a high
content of total phenols, proanthocyanidin and tannins. The results suggest that specific phenolic constituents in the extract could
be responsible for the different antioxidant properties observed in different cultivars. Furthermore, seed coat extract of
Sithong-bao may be a potential source of natural antioxidant to be developed into nutraceuticals.
PRACTICAL APPLICATIONS
Components of Tamarindus indica L., a tree indigenous to India and South-East Asia, have long been used as a spice, food
component and traditional medicine.
According To traditional medicine, the tamarind pulp is used as a digestive, carminative, laxative, expectorant and blood tonic;
the seeds are used as an anthelmintic, antidiarrheal and emetic. In addition, the seed coat is used to treat burns and aid wound
healing as well as as an antidysenteric. Recent studies have demonstrated polyphenolic constituents with more potent antioxidant
and anti-inflammatory activities of T. indica seed coat extract. Therefore, seed coat extracts of T. indica have economic potential
for development into health promotion products as well as natural preservatives to increase the shelf life of food by preventing
lipid peroxidation.
Addresses: [Suksomtip, Maneewan; Pongsamart, Sunanta] Chulalongkorn Univ, Dept Biochem & Microbiol, Fac Pharmaceut Sci,
Bangkok, Thailand; [Suksomtip, Maneewan] Chulalongkorn Univ, Drug & Hlth Care Prod Innovat & Promot Ctr, Bangkok,
Thailand; [Ukrisdawithid, Saowaluck] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok, Thailand; [Bhusawang,
Parichart] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok, Thailand
Reprint Address: Suksomtip, M, Chulalongkorn Univ, Dept Biochem & Microbiol, Fac Pharmaceut Sci, Bangkok, Thailand.
Funding Agency
Grant Number
Faculty of Pharmaceutical Sciences, Chulalongkorn University, Thailand
The authors thank Asst. Prof. Simon J.P. Wright from the Department of English, Faculty of Arts, for his assistance in the clarity
and grammar of the manuscript. This work was supported by the Faculty of Pharmaceutical Sciences, Chulalongkorn University,
Thailand.
Times Cited: 0
ISSN: 0145-8884
DOI: 10.1111/j.1745-4514.2009.00323.x
29-char Source Abbrev.: J FOOD BIOCHEM
ISO Source Abbrev.: J. Food Biochem.
Subject Category: Biochemistry & Molecular Biology; Food Science & Technology
ISI Document Delivery No.: 660JO
Record 36 of 271
Author(s): Ngamcharussrivichai, C (Ngamcharussrivichai, Chawalit); Nunthasanti, P (Nunthasanti, Pramwit); Tanachai, S
(Tanachai, Sithikorn); Bunyakiat, K (Bunyakiat, Kunchana)
Title: Biodiesel production through transesterification over natural calciums
Source: FUEL PROCESSING TECHNOLOGY, 91 (11): 1409-1415 NOV 2010
Language: English
Author Keywords: Transesterification; Biodiesel; Calcium oxide; Dolomite
23/11/2553 18:36
KeyWords Plus: SOLID-BASE CATALYST; PALM KERNEL OIL; SOYBEAN OIL; SUNFLOWER OIL; HETEROGENEOUS
CATALYSIS; TRANS-ESTERIFICATION; VEGETABLE-OILS; OXIDE; METHANOL; ALUMINA
Abstract: Transesterification of palm kernel oil (PKO) with methanol over various natural calciums, including limestone calcite,
cuttlebone, dolomite, hydroxyapatite, and dicalcium phosphate, has been investigated at 60 degrees C and 1 atm. The study
showed that dolomite, mainly consisting of CaCO3 and MgCO3, is the most active catalyst. The calcination temperature largely
affected the physicochemical properties, as evidenced by N-2 adsorption-desorption measurement, TGA, SEM and XRD, and the
transesterification performance of the resultant catalysts. It was found that the calcination of dolomite at 800 degrees C resulted in
a highly active mixed oxide. CaO was suggested to be the catalytically active site responsible for the methyl ester formation.
Under the suitable reaction conditions, the amount of dolomite calcined at 800 degrees C = 6 wt.% based on the weight of oil, the
methanol/oil molar ratio = 30, and the reaction time = 3 h, the methyl ester content of 98.0% can be achieved. The calcined
dolomite can be reused many times. The analyses of some important fuel properties indicated that the biodiesel produced had the
properties that meet the standard of biodiesel and diesel fuel issued by the Department of Energy Business, Ministry of Energy,
Thailand. (c) 2010 Elsevier B.V. All rights reserved.
Addresses: [Ngamcharussrivichai, Chawalit; Nunthasanti, Pramwit; Tanachai, Sithikorn; Bunyakiat, Kunchana] Chulalongkorn
Univ, Fac Sci, Dept Chem Technol, Fuels Res Ctr, Bangkok 10330, Thailand; [Ngamcharussrivichai, Chawalit] Chulalongkorn
Univ, Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Ngamcharussrivichai, C, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Fuels Res Ctr, Phyathai Rd,
Funding Agency
Grant Number
Commission on Higher Education (CHE)
MRG5280113
Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University
The authors are grateful to Chumporn Palm Oil Industry Co., Ltd. and Thai Dolomite Co., Ltd. for donating the vegetable oil and
dolomite, respectively. This work is financially supported by The Commission on Higher Education (CHE) and The Thailand
Research Fund (TRF) under grant no. MRG5280113, and Grant for Development of New Faculty Staff, Chulalongkorn
University. The support by The Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn
University, is also acknowledged.
Times Cited: 0
ISSN: 0378-3820
DOI: 10.1016/j.fuproc.2010.05.014
29-char Source Abbrev.: FUEL PROCESS TECHNOL
ISO Source Abbrev.: Fuel Process. Technol.
Subject Category: Chemistry, Applied; Energy & Fuels; Engineering, Chemical
ISI Document Delivery No.: 659EX
Record 37 of 271
Author(s): Donpudsa, S (Donpudsa, Suchao); Soderhall, I (Soderhall, Irene); Rimphanitchayakit, V (Rimphanitchayakit, Vichien);
Cerenius, L (Cerenius, Lage); Tassanakajon, A (Tassanakajon, Anchalee); Soderhall, K (Soderhall, Kenneth)
Title: Proteinase inhibitory activities of two two-domain Kazal proteinase inhibitors from the freshwater crayfish Pacifastacus
leniusculus and the importance of the P-2 position in proteinase inhibitory activity
Source: FISH & SHELLFISH IMMUNOLOGY, 29 (5): 716-723 NOV 2010
Language: English
Author Keywords: Kazal proteinase inhibitor; Crustaceans; Innate immunity; Hemocytes
KeyWords Plus: APHANOMYCES-ASTACI; MOLECULAR-CLONING; PLAGUE FUNGUS; SERINE; DOMAIN;
EXPRESSION; SHRIMP
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Abstract: Serine proteinase inhibitors are found ubiquitously in living organisms and involved in homeostasis of processes using
proteinases as well as innate immune defense. Two two-domain Kazal-type serine proteinase inhibitors (KPIs), KPI2 and KPI8,
have been identified from the hemocyte cDNA library of the crayfish Pacifastacus leniusculus. Unlike other KPIs from P.
leniusculus, they are found specific to the hernocytes and contain an uncommon P-2 amino acid residue, Gly. To unveil their
inhibitory activities, the two KPIs and their domains were over-expressed. By testing against subtilisin, trypsin, chymotrypsin and
elastase, the KPI2 was found to inhibit strongly against subtilisin and weakly against trypsin, while the KPI8 was strongly active
against only trypsin. With their P-1 Set and Lys residues, the KPI2_domain2 and KPI8_domain2 were responsible for strong
inhibition against subtilisin and trypsin, respectively. Mutagenesis of KPI8_domain1 at P-2 amino acid residue from Gly to Pro,
mimicking the P-2 residue of KPI8_domain2, rendered the KPI8_domain1 strongly active against trypsin, indicating the important
role of P-2 residue in inhibitory activities of the Kazal-type serine proteinase inhibitors. Only the KPI2 was found to inhibit
against the extracellular serine proteinases from the pathogenic oomycete of the freshwater crayfish, Aphanomyces astaci. (C)
2010 Elsevier Ltd. All rights reserved.
Addresses: [Donpudsa, Suchao; Soderhall, Irene; Cerenius, Lage; Soderhall, Kenneth] Uppsala Univ, Dept Comparat Physiol,
SE-75236 Uppsala, Sweden; [Donpudsa, Suchao; Rimphanitchayakit, Vichien; Tassanakajon, Anchalee] Chulalongkorn Univ, Fac
Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom Shrimp, Bangkok 10330, Thailand
Reprint Address: Soderhall, K, Uppsala Univ, Dept Comparat Physiol, Norbyvagen 18 A, SE-75236 Uppsala, Sweden.
Funding Agency
Grant Number
Swedish Research Council
Formas
This work was supported by the Swedish Research Council and Formas, and partly by a research grant from the Commission on
Higher Education. The Ph.D. student fellowships to Mr. Suchao Donpudsa for the Strategic Scholarships Fellowships Frontier
Research Networks from the Commission on Higher Education was greatly appreciated.
Times Cited: 0
Publisher: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Publisher Address: 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
ISSN: 1050-4648
DOI: 10.1016/j.fsi.2010.07.001
29-char Source Abbrev.: FISH SHELLFISH IMMUNOL
ISO Source Abbrev.: Fish Shellfish Immunol.
Subject Category: Fisheries; Immunology; Marine & Freshwater Biology; Veterinary Sciences
ISI Document Delivery No.: 658DM
Record 38 of 271
Author(s): Homvises, T (Homvises, Teerada); Tassanakajon, A (Tassanakajon, Anchalee); Somboonwiwat, K (Somboonwiwat,
Kunlaya)
Title: Penaeus monodon SERPIN, PmSERPIN6, is implicated in the shrimp innate immunity
Source: FISH & SHELLFISH IMMUNOLOGY, 29 (5): 890-898 NOV 2010
Language: English
Author Keywords: Penaeus monodon; Serine proteinase inhibitor; Serpin; White spot syndrome virus; Vibrio harveyi
KeyWords Plus: INTRACELLULAR COAGULATION INHIBITOR; MANDUCA-SEXTA SERPIN-6; REACTIVE CENTER
LOOP; CDNA CLONING; PROTEINASE-INHIBITORS; TISSUE LOCALIZATION; SEC RECEPTOR; PURIFICATION;
SUPERFAMILY; COMPLEXES
Abstract: Serine proteinase inhibitors (SERPINs or serpins) have been found in a diverse range of organisms. Herein, eight
serpin genes, namely PmSERPIN1 - 8, were identified from the Penaeus monodon EST database (http://pmonodon.biotec.or.th
/home.jsp). Among those, PmSERPIN6 was selected for further characterization. Tissue distribution analysis revealed that
PmSERPIN6 transcripts were expressed in the lymphoid organ, hemocyte, heart and gill, but not in the hepatopancreas.
Semi-quantitative RT-PCR analysis at 0-48 h after pathogen challenge demonstrated that the PmSERPIN6 gene transcript
expression levels in hemocytes was slightly decreased after systemic white spot syndrome virus (WSSV) injection but remained
unchanged upon Vibrio harveyi injection. Interestingly, immunocytochemistry using anti-PmSERPIN6 polyclonal antiserum
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showed an increase in the number of PrnSERPIN6 producing hemocytes at 72 h after both WSSV and V. harveyi injections
indicating that the expression of PmSERPIN6 responded to pathogen in the late phase of infection. Our results suggest a likely
important function of PmSERPIN6 in the shrimp's defense against invading pathogens. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Homvises, Teerada; Tassanakajon, Anchalee; Somboonwiwat, Kunlaya] Chulalongkorn Univ, Fac Sci, Dept
Biochem, Ctr Excellence Mol Biol & Genom Shrimp, Bangkok 10330, Thailand
Reprint Address: Somboonwiwat, K, Chulalongkorn Univ, Fac Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom Shrimp,
Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
This research received financial support from Chulalongkorn University through the Ratchadaphisek Somphot Endowment
Grants for Development of New Faculty Staff and the Faculty of Science, Chulalongkorn University (Grant no. RES-A1B1-11),
and from the National Center for Genetic Engineering and Biotechnology (BIOTEC). This work was also supported by the Thai
Government Stimulus Package 2 (TKK2555), under the Project for Establishment of Comprehensive Center for Innovative Food,
Health Products and Agriculture. The authors appreciate the Thesis Grant to Miss Teerada Homvises from BIOTEC and the
Chulalongkorn University Graduate School. We also thank Dr. Narongsak Puanglarp from the Center of Excellence for Marine
Biotechnology, Faculty of Science, Chulalongkorn University, and BIOTEC, for kindly providing us the information on
PmSERPIN3 and 8. We thank the Publication Counselling Unit, Faculty of Science, Chulalongkorn University for the helpful
comments on the manuscript.
Times Cited: 0
ISSN: 1050-4648
DOI: 10.1016/j.fsi.2010.07.017
ISI Document Delivery No.: 658DM
Record 39 of 271
Author(s): Agervald, A (Agervald, Asa); Baebprasert, W (Baebprasert, Wipawee); Zhang, XH (Zhang, Xiaohui); Incharoensakdi,
A (Incharoensakdi, Aran); Lindblad, P (Lindblad, Peter); Stensjo, K (Stensjo, Karin)
Title: The CyAbrB transcription factor CalA regulates the iron superoxide dismutase in Nostoc sp strain PCC 7120
Source: ENVIRONMENTAL MICROBIOLOGY, 12 (10): 2826-2837 OCT 2010
Language: English
KeyWords Plus: SYNECHOCYSTIS SP PCC-6803; ANABAENA-SP PCC-7120; WATER-WATER CYCLE; BIDIRECTIONAL
HYDROGENASE; OXIDATIVE STRESS; PHOTOSYNTHETIC APPARATUS; MARINE CYANOBACTERIUM; SHOTGUN
PROTEOMICS; GENE-EXPRESSION; REDOX CONTROL
Abstract: P>In the present investigation the results of induced over-production of the CyAbrB transcription factor CalA
(Cyanobacterial AbrB-like, annotated as Alr0946) in the cyanobacterium Nostoc sp. PCC 7120 were analysed. The CalA
overexpression strain showed a bleaching phenotype with lower growth rate and truncated filaments 2 days after induction of
overexpression. The phenotype was even more pronounced when illumination was increased from 35 to 125 mu mol m-2 s-1.
Using gel-based quantitative proteomics, the induced overexpression of CalA was shown to downregulate the abundance of
FeSOD, one of two types of superoxide dismutases in Nostoc sp. PCC 7120. The change in protein abundance was also
accompanied by lower transcript as well as activity levels. Purified recombinant CalA from Nostoc sp. PCC 7120 was shown to
interact with the promoter region of alr2938, encoding FeSOD, indicating a transcriptional regulation of FeSOD by CalA. The
bleaching phenotype is in line with a decreased tolerance against oxidative stress and indicates that CalA is involved in regulation
of cellular responses in which FeSOD has an important and specific function in the filamentous cyanobacterium Nostoc sp. PCC
7120.
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Addresses: [Agervald, Asa; Baebprasert, Wipawee; Zhang, Xiaohui; Lindblad, Peter; Stensjo, Karin] Uppsala Univ, Angstrom
Labs, Dept Photochem & Mol Sci, SE-75120 Uppsala, Sweden; [Baebprasert, Wipawee] Chulalongkorn Univ, Fac Sci, Program
Biotechnol, Bangkok 10330, Thailand; [Baebprasert, Wipawee; Incharoensakdi, Aran] Chulalongkorn Univ, Fac Sci, Dept
Biochem, Bangkok 10330, Thailand
Reprint Address: Stensjo, K, Uppsala Univ, Angstrom Labs, Dept Photochem & Mol Sci, POB 523, SE-75120 Uppsala, Sweden.
Funding Agency
Grant Number
Swedish Energy Agency
Knut and Alice Wallenberg Foundation
Nordic Energy Research Program
Royal Golden Jubilee PhD program in Thailand PHD/0199/2549
EU
043340
212508
Magnus Bergvall Foundation
The authors thank Dr Paulo Oliveira for critical reading of the manuscript and Dr Martin Ekman for excellent supervision of the
2DE experiments. This work was supported by the Swedish Energy Agency, the Knut and Alice Wallenberg Foundation, the
Nordic Energy Research Program (project BioH<INF>2</INF>), the Royal Golden Jubilee PhD program in Thailand
(PHD/0199/2549) (to W. B. and A. I.), the EU/NEST FP6 project, BioModularH<INF>2</INF> (contract # 043340), the
EU/Energy FP7 project SOLAR-H2 (contract # 212508) and the Magnus Bergvall Foundation.
Times Cited: 0
ISSN: 1462-2912
DOI: 10.1111/j.1462-2920.2010.02255.x
29-char Source Abbrev.: ENVIRON MICROBIOL
ISO Source Abbrev.: Environ. Microbiol.
ISI Document Delivery No.: 656XW
Record 40 of 271
Author(s): Brandt, AM (Brandt, Anna-Maria); Raksajit, W (Raksajit, Wuttinun); Yodsang, P (Yodsang, Panutda); Mulo, P (Mulo,
Paula); Incharoensakdi, A (Incharoensakdi, Aran); Salminen, TA (Salminen, Tiina A.); Maenpaa, P (Maenpaa, Pirkko)
Title: Characterization of the substrate-binding PotD subunit in Synechocystis sp. strain PCC 6803
Source: ARCHIVES OF MICROBIOLOGY, 192 (10): 791-801 OCT 2010
Language: English
Author Keywords: Polyamine transport; PotD; ABC transporter; Homology modeling; Regulation of expression
KeyWords Plus: ESCHERICHIA-COLI CHROMOSOME; PUTRESCINE TRANSPORT-SYSTEM; SP PCC-6803;
POLYAMINE TRANSPORT; GENE-EXPRESSION; MICROARRAY ANALYSIS; CRYSTAL-STRUCTURE; STRUCTURAL
BASIS; CYANOBACTERIUM; SPERMIDINE
Abstract: The potD gene encodes the bacterial substrate-binding subunit of the polyamine transport system. The uptake system,
which belongs to the ABC transporters, has been characterized in Escherichia coli, but it has not been previously studied in
cyanobacteria. Although the overall sequence identity between Synechocystis sp. strain PCC 6803 (hereafter Synechocystis) PotD
and Escherichia coli PotD is 24%, the ligand-binding site in the constructed homology model of Synechocystis PotD is well
conserved. The conservation of the five polyamine-binding residues (Asp206, Glu209, Trp267, Trp293, and Asp295 in
Synechocystis PotD) between these two species indicated polyamine-binding capacity for Synechocystis PotD. The Synechocystis
potD gene is functional and its expression is under environmental regulation at transcriptional as well as post-transcriptional
levels. Furthermore, an in vitro binding assay with the purified recombinant PotD protein demonstrated that the Synechocystis
PotD protein is able to bind polyamines and favors spermidine over putrescine. Finally, we confirmed that Synechocystis PotD
plays a physiological role in the uptake of polyamines in vivo using a constructed Synechocystis potD-disruption mutant.
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Addresses: [Brandt, Anna-Maria; Salminen, Tiina A.] Abo Akad Univ, Struct Bioinformat Lab, Dept Biosci, FIN-20520 Turku,
Finland; [Raksajit, Wuttinun; Yodsang, Panutda; Incharoensakdi, Aran] Chulalongkorn Univ, Dept Biochem, Fac Sci, Bangkok
10330, Thailand; [Yodsang, Panutda; Mulo, Paula; Maenpaa, Pirkko] Dept Biochem & Food Chem, Lab Plant Physiol & Mol
Biol, Turku 20014, Finland; [Raksajit, Wuttinun] Kasetsart Univ, Dept Vet Technol, Fac Vet Technol, Bangkok 10900, Thailand
Reprint Address: Salminen, TA, Abo Akad Univ, Struct Bioinformat Lab, Dept Biosci, FIN-20520 Turku, Finland.
E-mail Address: [email protected]; [email protected]; [email protected]; [email protected]; [email protected];
[email protected]; [email protected]
Funding Agency
Grant Number
National Graduate School of Informational and Structural Biology
Magnus Ehrnrooth Foundation
Abo Akademi Foundation
Commission for Higher Education, Thailand
Pentti Borgs Memorial Fund
Sigrid Juselius Foundation
Academy of Finland
203352
110099
130075
Centre for International Mobility
CIMO Fellowship
This work was supported by the National Graduate School of Informational and Structural Biology, Magnus Ehrnrooth
Foundation and Abo Akademi Foundation to AMB, the Thailand Research Fund through the Royal Golden Jubilee Ph.D.
Program and the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment Fund) to WR and AI,
the Commission for Higher Education, Thailand (the university staff development consortium) to PY and AI, Tor, Joe and Pentti
Borgs Memorial Fund and Sigrid Juselius Foundation to TAS and the Academy of Finland to PMa (203352) and PMu (110099,
130075), and Centre for International Mobility, CIMO Fellowship to WR, PY and PMa. We thank Professor Mark Johnson for
the excellent facilities provided at the Structural Bioinformatics Laboratory at the Department of Biochemistry and Pharmacy,
Abo Akademi University. The authors are indebted to Wanwimon Mekboonsonglarp of Scientific and Technological Research
Equipment Center, Thailand, for SPR analysis and Dr. Surasak Laloknam and Bongkoj Boonburapong for their excellent SPR
technical assistance.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0302-8933
DOI: 10.1007/s00203-010-0607-3
29-char Source Abbrev.: ARCH MICROBIOL
ISO Source Abbrev.: Arch. Microbiol.
ISI Document Delivery No.: 650IN
Record 41 of 271
Author(s): Matsui, M (Matsui, Masafumi); Panha, S (Panha, Somsak); Khonsue, W (Khonsue, Wichase); Kuraishi, N (Kuraishi,
Norihiro)
Title: Two new species of the "kuhlii" complex of the genus Limnonectes from Thailand (Anura: Dicroglossidae)
Source: ZOOTAXA, (2615): 1-22 SEP 17 2010
Language: English
Author Keywords: Limnonectes; mitochondrial DNA; nuclear DNA; phylogeny; new species; Thailand; biogeography
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KeyWords Plus: MULTIVARIATE-ANALYSIS; SOUTHEAST-ASIA; FANGED FROGS; AMPHIBIA; RANIDAE;
SYSTEMATICS; SUBSTITUTIONS; MICROHYLIDAE; BIOGEOGRAPHY; PHYLOGENY
Abstract: Phylogenetic relationships inferred from sequences of the mitochondrial 12S rRNA, tRNA(val), and 16S rRNA genes
and nuclear POMC and RAG-1 genes revealed that fanged frogs from Thailand usually associated with Limnonectes kuhlii are
monophyletic and are collectively sister to the clade containing three Chinese and Japanese species. Within the Thai clade, the
northern lineage, the southern lineage, and a population originally assigned to L. megastomias show unresolved relationships with
each other, but are separated by genetic distances that correspond to values found among species of the Chinese-Japanese clade.
Hybridization and past gene introgression are not detected among these three lineages of fanged frogs from Thailand. Adult
specimens of the northern and southern lineages are phenotypically similar to each other, but can be separated by the combination
of several morphometric characters. From the genetic and morphological evidence, they are considered to represent taxonomically
different species. We therefore describe the northern lineage as L. taylori sp. nov. and the southern lineage as L. jarujini sp. nov.
Taxonomic identity of the Loei population of L. megastomias requires future morphological investigation. The distribution pattern
of fanged frogs within Thailand is discussed and the significance of the Three Pagodas Fault Zone is noted.
Addresses: [Matsui, Masafumi; Kuraishi, Norihiro] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan;
[Panha, Somsak; Khonsue, Wichase] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand
Reprint Address: Matsui, M, Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan.
Monbusho
04041068
06041066
08041144
20405013
TJTTP-OECF
The National Research Council of Thailand and the Royal Forest Department of Thailand kindly permitted MM to conduct the
project, and Chulalongkorn University kindly provided all the facilities for conducting research. MM is grateful to the following
for their encouragements and/or permission to conduct research and/or field companionship: K. Araya, T. Chan-ard, T. Hikida,
M. Honda, the late J. Nabitabhata, H. Ota, K. Thirakhupt, and A. Tominaga. MM is also indebted to K. Nishikawa and N.
Yoshikawa for laboratory assistance and MT. Matsui for preparing a map. MM is grateful to Y. Chuaynkern (THNHM), R. I.
Crombie and W. R. Heyer (USNM), R. F. Inger and A. Reseter (FMNH), D. Iskandar (MZB), and G.-F. Wu and J.-P. Jiang
(CIB) for allowing him to examine specimens under their care. Field trips by MM were made possible by grants from The
Monbusho (Field Research, Nos. 04041068, 06041066, 08041144, and 20405013) and TJTTP-OECF. WK thanks The Plant
Genetic Conservation Project under initiative of Her Royal Highness Princess Maha Chakri Siridon (RSPG) and Naval Special
Warfare Group, Royal Thai Navy, for traveling fund. We thank two anonymous reviewers and M. Vences for improving the
manuscript, and T. Johnson for correcting English text.
Times Cited: 0
ISSN: 1175-5326
ISI Document Delivery No.: 650SG
Record 42 of 271
Author(s): Bertozzini, P (Bertozzini, Paolo); Conti, R (Conti, Roberto); Lewkeeratiyutkul, W (Lewkeeratiyutkul, Wicharn)
Title: Modular Theory, Non-Commutative Geometry and Quantum Gravity
Source: SYMMETRY INTEGRABILITY AND GEOMETRY-METHODS AND APPLICATIONS, 6: Art. No. 067 2010
Language: English
Author Keywords: modular theory; non-commutative geometry; spectral triple; category theory; quantum physics; space-time
KeyWords Plus: VON-NEUMANN-ALGEBRAS; SEMIFINITE SPECTRAL TRIPLES; SPIN-STATISTICS THEOREM;
FACTORIZING S-MATRIX; C-ASTERISK-ALGEBRAS; LOCAL INDEX FORMULA; FIELD-THEORY; MINKOWSKI
SPACE; CHERN CHARACTER; VACUUM STATES
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Abstract: This paper contains the first written exposition of some ideas (announced in a previous survey) on an approach to
quantum gravity based on Tomita-Takesaki modular theory and A. Connes non-commutative geometry aiming at the reconstruction
of spectral geometries from an operational formalism of states and categories of observables in a covariant theory. Care has been
taken to provide a coverage of the relevant background on modular theory, its applications in non-commutative geometry and
physics and to the detailed discussion of the main foundational issues raised by the proposal.
Addresses: [Bertozzini, Paolo] Thammasat Univ, Dept Math & Stat, Fac Sci & Technol, Pathum Thani 12121, Thailand; [Conti,
Roberto] Univ Chieti Pescara GD Annunzio, Dipartimento Sci, I-65127 Pescara, Italy; [Lewkeeratiyutkul, Wicharn]
Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand
Reprint Address: Bertozzini, P, Thammasat Univ, Dept Math & Stat, Fac Sci & Technol, Pathum Thani 12121, Thailand.
Times Cited: 0
Publisher: NATL ACAD SCI UKRAINE, INST MATH
Publisher Address: 3 TERESCHCHENKIV SKA ST, KYIV 4, 01601, UKRAINE
ISSN: 1815-0659
Article Number: 067
DOI: 10.3842/SIGMA.2010.067
29-char Source Abbrev.: SYMMETRY INTEGR GEOM
ISO Source Abbrev.: Symmetry Integr. Geom.
Subject Category: Physics, Mathematical
ISI Document Delivery No.: 650CD
Record 43 of 271
Author(s): Chanprateep, S (Chanprateep, Suchada); Buasri, K (Buasri, Ketsunee); Muangwong, A (Muangwong, Aumtiga);
Utiswannakul, P (Utiswannakul, Phonpisit)
Title: Biosynthesis and biocompatibility of biodegradable poly(3-hydroxybutyrate-co-4-hydroxybutyrate)
Source: POLYMER DEGRADATION AND STABILITY, 95 (10): 2003-2012 OCT 2010
Language: English
Author Keywords: Polyhydroxyalkanoates; Biopolymer; Bioprocess; Biocompatibility
KeyWords Plus: ALCALIGENES-EUTROPHUS; GAMMA-HYDROXYBUTYRATE; POLYHYDROXYALKANOATES;
TISSUE; POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE); 4-HYDROXYBUTYRATE; COPOLYESTERS;
DEGRADATION; SYSTEM; ACID
Abstract: Poly(3-hydroxybutyrate), PHB, and poly(3-hydroxybutyrate-co-4-hydroxybutyrate), P(3HB-co-4HB), consisting of
0-94% mole fraction of 4HB content, were produced in high content by Cupriavidus necator strain A-04. The carbon sources used
for PHB production included sugars made locally in Thailand: refined sugarcane, brown sugarcane, rock sugar, toddy palm sugar
and coconut palm sugar. The switching of the ratios of carbon to nitrogen, together with the ratios of fructose to 1,4-butanediol,
were applied to P(3HB-co-4HB) production in fed-batch cultures. Optimal P(3HB-co-4HB) production was achieved with 112 g
biomass and 73 g P(3HB-co-4HB) with 38% mole fraction of 4HB content. Next, P(3HB-co-4HB) with a 0, 5, 24,38 and 64%
mole fraction of 4HB content were purified and prepared as plastic films. The mechanical properties and biocompatibility of
these films were tested and compared with commercial PHB, polystyrene (PS) and polyvinylchloride (PVC) prepared without
additives. The results demonstrated that PHB had thermal and mechanical properties similar to those of commercial PHB. The
P(3HB-co-4HB) polymers possessed melting temperature and glass transition temperature values higher than those reported
previously. The mechanical properties were compared with those of PS and PVC. The in vitro biocompatibility was assessed
using L929, human dermal fibroblast and Saos-2 human osteosarcoma cells. The cytotoxicity results and scanning electron
micrographs showed that P(3HB-co-4HB) films have good surface characteristics and can promote cell attachment, proliferation
and differentiation. Combined with their good mechanical properties, P(3HB-co-4HB) polymers possess potential usefulness for
biomaterial applications in artificial skin tissue support and orthopedic support. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Chanprateep, Suchada; Buasri, Ketsunee; Muangwong, Aumtiga; Utiswannakul, Phonpisit] Chulalongkorn Univ, Fac
Sci, Dept Microbiol, Bangkok 10330, Thailand
Reprint Address: Chanprateep, S, Chulalongkorn Univ, Fac Sci, Dept Microbiol, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Research Council of Thailand
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National Science and Technology Development Agency of Thailand
Japan Science and Technology Agency
This work was supported in part by the "Joint Program in the field of Biotechnology" under National Research Council of
Thailand, National Science and Technology Development Agency of Thailand, and Japan Science and Technology Agency. The
authors are grateful to Miss Sukitaya Veeranondha at National Science and Technology Development Agency of Thailand for her
expert assistance and contribution on animal cell culture.
Times Cited: 0
ISSN: 0141-3910
DOI: 10.1016/j.polymdegradstab.2010.07.014
29-char Source Abbrev.: POLYM DEGRAD STABIL
ISO Source Abbrev.: Polym. Degrad. Stabil.
ISI Document Delivery No.: 657CB
Record 44 of 271
Author(s): Chaimanee, V (Chaimanee, Veeranan); Warrit, N (Warrit, Natapot); Chantawannakul, P (Chantawannakul, Panuwan)
Title: Infections of Nosema ceranae in four different honeybee species
Source: JOURNAL OF INVERTEBRATE PATHOLOGY, 105 (2): 207-210 OCT 2010
Language: English
Author Keywords: Apis mellifera; Asian honeybee; Nosema ceranae; Nosema apis; Microsporidia
KeyWords Plus: APIS-MELLIFERA; MICROSPORIDIAN PARASITE; MOLECULAR CHARACTERIZATION; COLONY
COLLAPSE; BEE; EUROPE
Abstract: The microsporidium Nosema ceranae is detected in honeybees in Thailand for the first time. This endoparasite has
recently been reported to infect most Apis mellifera honeybee colonies in Europe, the US, and parts of Asia, and is suspected to
have displaced the endemic endoparasite species, Nosema apis, from the western A. mellifera. We collected and identified
species of microsporidia from the European honeybee (A. mellifera), the cavity nesting Asian honeybee (Apis cerana), the dwarf
Asian honeybee (Apis florea) and the giant Asian honeybee (Apis dorsata) from colonies in Northern Thailand. We used multiplex
PCR technique with two pairs of primers to differentiate N. ceranae from N. apis. From 80 A. mellifera samples, 62 (77.5%)
were positively identified for the presence of the N. ceranae. Amongst 46 feral colonies of Asian honeybees (A. cerana, A. florea
and A. dorsata) examined for Nosema infections, only N. ceranae could be detected. No N. apis was found in our samples. N.
ceranae is found to be the only microsporidium infesting honeybees in Thailand. Moreover, we found the frequencies of N.
ceranae infection in native bees to be less than that of A. mellifera. (C) 2010 Elsevier Inc. All rights reserved.
Addresses: [Chaimanee, Veeranan; Chantawannakul, Panuwan] Chiang Mai Univ, Fac Sci, Dept Biol, Chiang Mai 50200,
Thailand; [Warrit, Natapot] Chulalongkorn Univ, Fac Sci, Dept Biol, Ctr Excellence Entomol, Bangkok 10330, Thailand; [Warrit,
Natapot] Smithsonian Inst, Dept Entomol, Natl Museum Nat Hist, Washington, DC 20013 USA
Reprint Address: Chantawannakul, P, Chiang Mai Univ, Fac Sci, Dept Biol, Chiang Mai 50200, Thailand.
Funding Agency
Grant Number
Commission on Higher Education, Thailand
RSA 5280010
We would like to thank the Commission on Higher Education, Thailand for support by Grant funding under the program of
Strategic Scholarships for Frontier Research Network for the Joint Ph.D. Program Thai Doctoral degree for this research. Also
we acknowledge the Thailand Research Fund (RSA 5280010) for financial support. We are grateful to Dr. Yanping Chen, Dr.
Ingemar Fries and Dr. Requel Martin-Hernandez for providing bee samples.
Times Cited: 0
Publisher: ACADEMIC PRESS INC ELSEVIER SCIENCE
23/11/2553 18:36
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Publisher Address: 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
ISSN: 0022-2011
DOI: 10.1016/j.jip.2010.06.005
29-char Source Abbrev.: J INVERTEBR PATHOL
ISO Source Abbrev.: J. Invertebr. Pathol.
ISI Document Delivery No.: 650DN
Record 45 of 271
Author(s): Chuayjuljit, S (Chuayjuljit, Saowaroj); Boonmahithisud, A (Boonmahithisud, Anyaporn)
Title: Natural Rubber Blended with Polystyrene Nanoparticles Prepared by Differential Microemulsion Polymerization
Source: JOURNAL OF ELASTOMERS AND PLASTICS, 42 (4): 375-387 JUL 2010
Language: English
Author Keywords: natural rubber; PS nanoparticles; differential microemulsion polymerization; tensile properties; dynamic
mechanical behaviors
KeyWords Plus: NANOCOMPOSITES; STYRENE
Abstract: Blends of natural rubber (NR) and polystyrene (PS) nanoparticles at 3-9 phr by latex compounding were investigated
for their tensile properties, dynamic mechanical behaviors, and flammability. The nanolatex of PS was synthesized via differential
microemulsion polymerization. The properties of NR were improved as a result of the incorporation of PS nanoparticles at 3 phr
for tensile properties except the % elongation at break, and up to 9 phr for flammability. The results from dynamic mechanical
analyzer showed that the elastic properties of NR near the glass transition temperature increased when the amount of PS
nanoparticles was over 3 phr.
Addresses: [Chuayjuljit, Saowaroj; Boonmahithisud, Anyaporn] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330,
Thailand; [Chuayjuljit, Saowaroj; Boonmahithisud, Anyaporn] Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem & Adv
Mat, Bangkok 10330, Thailand
Reprint Address: Chuayjuljit, S, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Faculty of Science, the National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials,
The authors gratefully acknowledge the Faculty of Science, the National Center of Excellence for Petroleum, Petrochemicals and
Advanced Materials, Chulalongkorn University and the Thailand Research Fund for financial, material, and instrument support.
We would also like to thank the PCU, Faculty of Science, Chulalongkorn University for the manuscript correction and
suggestion.
Times Cited: 0
Publisher: SAGE PUBLICATIONS LTD
Publisher Address: 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
ISSN: 0095-2443
DOI: 10.1177/0095244310371360
29-char Source Abbrev.: J ELASTOM PLAST
ISO Source Abbrev.: J. Elastomer Plast.
Subject Category: Materials Science, Multidisciplinary; Polymer Science
ISI Document Delivery No.: 655IL
Record 46 of 271
Author(s): Jinsart, W (Jinsart, W.); Sripraparkorn, C (Sripraparkorn, C.); Siems, ST (Siems, S. T.); Hurley, PJ (Hurley, P. J.);
Thepanondh, S (Thepanondh, S.)
23/11/2553 18:36
Title: Application of The Air Pollution Model (TAPM) to the urban airshed of Bangkok, Thailand
Source: INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION, 42 (1-3): 68-84 Sp. Iss. SI 2010
Language: English
Author Keywords: TAPM; the air pollution model; roadside air pollution; CO; carbon monoxide; traffic; Bangkok
KeyWords Plus: CARBON-MONOXIDE CONCENTRATIONS; SEMIEMPIRICAL MODEL; QUALITY; METEOROLOGY;
CHILDREN; SMOG
Abstract: Bangkok has been faced with air pollution problems as a result of increasing traffic emissions. The Air Pollution
Model (TAPM) was employed to simulate carbon monoxide (CO) concentrations based on an emissions inventory data. The
hourly CO concentrations from a year-long simulation have been evaluated against observations from six monitoring sites. The
simulated concentrations were evaluated against the observations by various standard statistical indices. The model shows some
skill in simulating the CO concentrations during winter season when a well-defined boundary layer exists over Bangkok.
However, the simulations are degraded in summer, most likely owing to deep convection.
Addresses: [Jinsart, W.] Chulalongkorn Univ, Dept Gen Sci, Natl Ctr Excellence Environm & Hazardous Waste Ma, Fac Sci,
Bangkok 10330, Thailand; [Sripraparkorn, C.] Chulalongkorn Univ, Grad Sch, Int Postgrad Programmes Environm Management,
Bangkok 10330, Thailand; [Siems, S. T.] Monash Univ, Sch Math Sci, Ctr Dynam Meteorol & Oceanog, Clayton, Vic 3800,
Australia; [Hurley, P. J.] CSIRO Marine & Atmospher Res, Aspendale, Vic 3195, Australia; [Thepanondh, S.] Kasetsart Univ,
Fac Sci, Bangkok 10900, Thailand
Reprint Address: Jinsart, W, Chulalongkorn Univ, Dept Gen Sci, Natl Ctr Excellence Environm & Hazardous Waste Ma, Fac Sci,
[email protected]
Funding Agency
Grant Number
National Centre of Excellence for Environmental and Hazardous Waste Management
Royal Golden Jubilee PhD programme under Thailand Research Fund
Graduate School, Chulalongkorn University
several government authorities
Land and Transport Department, Meteorological Department
PCD
This research was financially supported by National Centre of Excellence for Environmental and Hazardous Waste
Management, also with the Royal Golden Jubilee PhD programme under Thailand Research Fund and Graduate School,
Chulalongkorn University. The authors are very grateful for the support from several government authorities; Land and Transport
Department, Meteorological Department and PCD, for providing valuable information.
Times Cited: 0
Publisher: INDERSCIENCE ENTERPRISES LTD
Publisher Address: WORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 896, CH-1215 GENEVA,
SWITZERLAND
ISSN: 0957-4352
29-char Source Abbrev.: INT J ENVIRON POLLUTION
ISO Source Abbrev.: Int. J. Environ. Pollut.
Subject Category: Environmental Sciences
ISI Document Delivery No.: 655ET
Record 47 of 271
Author(s): Chantarasriwong, O (Chantarasriwong, Oraphin); Batova, A (Batova, Ayse); Chavasiri, W (Chavasiri, Warinthorn);
Theodorakis, EA (Theodorakis, Emmanuel A.)
Title: Chemistry and Biology of the Caged Garcinia Xanthones
Source: CHEMISTRY-A EUROPEAN JOURNAL, 16 (33): 9944-9962 SEP 3 2010
Language: English
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Author Keywords: cyclic compounds; cycloaddition; domino reactions; natural products; synthesis design
KeyWords Plus: ACID-INDUCED APOPTOSIS; HEPATOMA SMMC-7721 CELLS; BCL-2 FAMILY PROTEINS;
CLAISEN/DIELS-ALDER/CLAISEN REARRANGEMENT; CYTOTOXIC POLYPRENYLATED XANTHONES;
PERFORMANCE LIQUID-CHROMATOGRAPHY; TRANSCRIPTASE MESSENGER-RNA; NUCLEAR MAGNETICRESONANCE; BIOMIMETIC TOTAL-SYNTHESIS; TANDEM WESSELY OXIDATION
Abstract: Natural products have been a great source of many small molecule drugs for various diseases. In spite of recent
advances in biochemical engineering and fermentation technologies that allow us to explore microorganisms and the marine
environment as alternative sources of drugs, more than 70% of the current small molecule therapeutics derive their structures from
plants used in traditional medicine. Natural-product-based drug discovery relies heavily on advances made in the sciences of
biology and chemistry. Whereas biology aims to investigate the mode of action of a natural product, chemistry aims to overcome
challenges related to its supply, bioactivity, and target selectivity. This review summarizes the explorations of the caged Garcinia
xanthones, a family of plant metabolites that possess a unique chemical structure, potent bioactivities, and a promising
pharmacology for drug design and development.
Addresses: [Chantarasriwong, Oraphin; Theodorakis, Emmanuel A.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA
92093 USA; [Chantarasriwong, Oraphin; Chavasiri, Warinthorn] Chulalongkorn Univ, Fac Sci, Dept Chem, Nat Prod Res Unit,
Bangkok 10330, Thailand; [Batova, Ayse] Univ Calif San Diego, Dept Pediat Hematol Oncol, San Diego, CA 92103 USA
Reprint Address: Theodorakis, EA, Univ Calif San Diego, Dept Chem & Biochem, 9500 Gilman Dr, La Jolla, CA 92093 USA.
Funding Agency
Grant Number
National Institutes of Health
CA 133002
PHD/0223/2548
Center for Petroleum, Petrochemistry and Advanced Materials
National Science Foundation
CHE-9709183
CHE-0741968
Financial support from the National Institutes of Health (CA 133002) is gratefully acknowledged. We also acknowledge partial
support to O.C. and W.C. from the Thailand Research Fund in the form of a Royal Golden Jubilee Ph.D. Fellowship (grant no.
PHD/0223/2548) and the Center for Petroleum, Petrochemistry and Advanced Materials. We thank the National Science
Foundation for instrumentation grants CHE-9709183 and CHE-0741968. We also thank Drs. E.J. Tisdale, C. Chowdhury, B. G.
Vong, H. Li, S. H. Kim, I. Slobodov, T. Lam, V. Wascholowski, and Professors A. Giannis and A. L. Yu for significant
contributions to various aspects of this project. We are grateful to Teresa Abendroth for assistance with the design of the
graphics and frontispiece.
Times Cited: 0
ISSN: 0947-6539
DOI: 10.1002/chem.201000741
29-char Source Abbrev.: CHEM-EUR J
ISO Source Abbrev.: Chem.-Eur. J.
ISI Document Delivery No.: 654GO
Record 48 of 271
Author(s): Tiengburanatam, N (Tiengburanatam, Nathachai); Boonmee, A (Boonmee, Apaporn); Sangvanich, P (Sangvanich,
Polkit); Karnchanatat, A (Karnchanatat, Aphichart)
Title: A Novel alpha-Glucosidase Inhibitor Protein from the Rhizomes of Zingiber ottensii Valeton
Source: APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 162 (7): 1938-1951 NOV 2010
Language: English
Author Keywords: alpha-Glucosidase inhibitor; Zingiber ottensii
KeyWords Plus: SACCHAROMYCES-CEREVISIAE; IN-VIVO; SEEDS; TIME
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Abstract: The objective of this study was to investigate a new protein with alpha-glucosidase inhibitory activity from the
rhizomes of Zingiber ottensii. With a simple salting-out technique followed by single-step anion-exchange purification, the protein
was successfully purified from the rhizomes. This protein was found to have three likely sub-unit types, 32.5, 15.2, and 13.8 kDa,
as revealed by native and reducing SDS-PAGE analysis. Determination of the kinetics of the inhibition of alpha-glucosidase from
Saccharomyces cerevisiae by standard enzymatic methods indicated the maximum percent inhibition; IC50 and K (i) of this
protein were 77.5%, 30.15 mu g/ml, and 140 mu mol, while the K (m) and V (max) were 2.35 mu mol and 0.11 mM/min,
respectively. The inhibitory action was pH-independent within the pH range 2-10, but was potentially affected by buffer salts, and
was relatively temperature-stable between 4-35 A degrees C, with a maximum activity at 65 A degrees C. The amino acid
sequence of an internal fragment of this purified Z. ottensii rhizomal protein had a similarity to the sequence from the plant
cysteine proteinase family. Although this alpha-glucosidase inhibitory protein was purified from Z. ottensii rhizomes and
preliminarily characterized, further studies are needed prior to firm applications being envisaged.
Addresses: [Sangvanich, Polkit; Karnchanatat, Aphichart] Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Bangkok 10330,
Thailand; [Tiengburanatam, Nathachai] Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok 10330, Thailand; [Boonmee,
Apaporn; Sangvanich, Polkit] Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Karnchanatat, A, Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Institute of Biotechnology and Genetic Engineering and Biotechnology
The authors thank the 90th Anniversary of Chulalongkorn University fund for financial support of this research. The Institute of
Biotechnology and Genetic Engineering and Biotechnology program, the Faculty of Science, Chulalongkorn University, are both
acknowledged for support and facilities. We also thank Dr. Robert Butcher (Publication Counselling Unit, Chulalongkorn
University) for his constructive comments in preparing this manuscript.
Times Cited: 0
Publisher: HUMANA PRESS INC
Publisher Address: 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA
ISSN: 0273-2289
DOI: 10.1007/s12010-010-8971-7
29-char Source Abbrev.: APPL BIOCHEM BIOTECH
ISO Source Abbrev.: Appl. Biochem. Biotechnol.
Subject Category: Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology
ISI Document Delivery No.: 656GD
Record 49 of 271
Author(s): Phollookin, C (Phollookin, Chaiwat); Wacharasindhu, S (Wacharasindhu, Sumrit); Ajavakom, A (Ajavakom, Anawat);
Tumcharern, G (Tumcharern, Gamolwan); Ampornpun, S (Ampornpun, Sasikarn); Eaidkong, T (Eaidkong, Thichamporn);
Sukwattanasinitt, M (Sukwattanasinitt, Mongkol)
Title: Tuning Down of Color Transition Temperature of Thermochromically Reversible Bisdiynamide Polydiacetylenes
Source: MACROMOLECULES, 43 (18): 7540-7548 SEP 28 2010
Language: English
KeyWords Plus: EMBEDDED ELECTROSPUN FIBERS; SELF-ASSEMBLED MONOLAYERS; LANGMUIR-BLODGETTFILMS; COLORIMETRIC DETECTION; RATIONAL DESIGN; SOLID-STATE; VESICLES; POLYMERIZATION;
SUPRAMOLECULES; NANOCOMPOSITES
Abstract: A series of bisdiynamide lipids containing various lengths of methylene spacer (m = 2, 3 and 4) between the diynes and
the diamide headgroup and number of methylene units (n = 6 and 9) in their hydrophobic tails are synthesized. All six lipids
synthesized can be dispersed in water and photopolymerized by UV irradiation to give the corresponding polydiacetylene (PDA)
sols. The color transitions from blue to red during heating-cooling cycles of the PDA sols are photographically recorded and
monitored by UV-vis absorption spectroscopy. The bisdiynamide PDAs exhibit excellent thermochromic reversibility and the
color transition temperature can be tuned between ca. 25-55 degrees C by the variation of m and n values. Temperature indicators
can be obtained by applying a screen printing ink formulated from the bisdiynamide monomer on plastic substrates followed by
UV irradiation to generate desired patterns of thermochromically reversible PDAs.
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Addresses: [Phollookin, Chaiwat; Wacharasindhu, Sumrit; Ajavakom, Anawat; Sukwattanasinitt, Mongkol] Chulalongkorn Univ,
Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok 10330, Thailand; [Ampornpun, Sasikarn; Eaidkong, Thichamporn]
Chulalongkorn Univ, Fac Sci, Program Petrochem & Polymer Sci, Bangkok 10330, Thailand
Reprint Address: Sukwattanasinitt, M, Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
National Science and Technology Development Agency NN-B-22-FN9-10-52-06
Thai government
TKK2555
This study was financially supported by the grants from National Nanotechnology Center, National Science and Technology
Development Agency (NANOTEC, NSTDA, Project NN-B-22-FN9-10-52-06) and the Thailand Research Fund (TRF). The
work is part of the Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculturesupported by the Thai government stimulus package 2 (TKK2555, SP2)". We would also like to thank Center for Petroleum,
Petrochemicals and Advanced Materials, Chulalongkom University, the 90th Anniversary of Chulalongkom University Fund
(Ratchadaphiseksomphot Endowment Fund) and the Thailand Graduate Institute of Science and Technology TGIST) for student
scholarships.
Times Cited: 0
ISSN: 0024-9297
DOI: 10.1021/ma101264k
29-char Source Abbrev.: MACROMOLECULES
ISO Source Abbrev.: Macromolecules
ISI Document Delivery No.: 650VX
Record 50 of 271
Author(s): Wichapong, K (Wichapong, Kanin); Lawson, M (Lawson, Michael); Pianwanit, S (Pianwanit, Somsak); Kokpol, S
(Kokpol, Sirirat); Sippl, W (Sippl, Wolfgang)
Title: Postprocessing of Protein-Ligand Docking Poses Using Linear Response MM-PB/SA: Application to Wee1 Kinase
Inhibitors
Source: JOURNAL OF CHEMICAL INFORMATION AND MODELING, 50 (9): 1574-1588 SEP 2010
Language: English
KeyWords Plus: MOLECULAR-FORCE FIELD; HIGH-THROUGHPUT DOCKING; INTERACTION ENERGY METHOD;
CHK1 CHECKPOINT KINASES; BINDING-AFFINITY; CONFORMATIONAL ENERGIES; GENETIC ALGORITHM;
BETA-SECRETASE; DRUG DESIGN; MMFF94
Abstract: Prediction of the binding strength of untested ligands is a central issue in structure-based drug design. In order to
rapidly screen large compound databases, simple scoring schemes are often used in target-based virtual screening. The resulting
scores often correlate poorly with biological affinities. More rigorous scoring methods, such as MM-PB/SA, correlate better with
biological data by considering solvation effects and protein flexibility in the calculation of the binding free energy of a ligand.
Here we describe the performance of a modified MM-PB/SA method on 222 Wee1 kinase inhibitors (48 pyridopyrimidine and
174 pyrrolocarbazole derivatives). Docking of these inhibitors into the available Wee I kinase crystal structure yielded a
consistent binding mode, and the derived MM-PB/SA models showed a significant correlation between calculated and
experimental data (12 values between 0.64 and 0.67). Further study of these models on external test sets of Wee1 kinase inhibitors
and structurally related decoys showed that a model based on a single kinase inhibitor conformation can discriminate the active
inhibitors from decoys. We also tested whether the linear interaction energy method with continuum electrostatics (LIECE) yields
comparable results to MM-PB/SA and whether the LIECE and MM-PB/SA models can be applied for virtual screening of
compound libraries.
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Addresses: [Wichapong, Kanin; Lawson, Michael; Sippl, Wolfgang] Univ Halle Wittenberg, Dept Pharmaceut Chem, D-06120
Halle, Saale, Germany; [Wichapong, Kanin; Pianwanit, Somsak; Kokpol, Sirirat] Chulalongkorn Univ, Dept Chem, Fac Sci,
Reprint Address: Sippl, W, Univ Halle Wittenberg, Dept Pharmaceut Chem, D-06120 Halle, Saale, Germany.
Funding Agency
Grant Number
Royal Golden Jubilee Ph.D. Program
PHD/0044/2548
Center for Petroleum
Petrochemicals
Deutscher Akademischer Austausch Dienst (DAAD)
German Fulbright Kommission
HE
The authors would like to thank the Department of Pharmaceutical Chemistry, Martin-Luther University Halle-Wittenberg, Halle
(Saale), Germany, and Computational Chemistry Unit Cell (CCUC), Department of Chemistry, Faculty of Science,
Chulalongkorn University, Bangkok, Thailand, for support in hardware and software. K.W. also thanks the Thailand Research
Fund through the the Royal Golden Jubilee Ph.D. Program (Grant Number PHD/0044/2548), Center for Petroleum,
Petrochemicals, and Advanced Materials, Chulalongkorn University, and Deutscher Akademischer Austausch Dienst (DAAD)
for financial support. M.L. thanks the German Fulbright Kommission and HE for financial support.
Times Cited: 0
ISSN: 1549-9596
DOI: 10.1021/ci1002153
29-char Source Abbrev.: J CHEM INF MODEL
ISO Source Abbrev.: J. Chem Inf. Model.
Subject Category: Chemistry, Multidisciplinary; Computer Science, Information Systems; Computer Science, Interdisciplinary
Applications
ISI Document Delivery No.: 653JT
Record 51 of 271
Author(s): Thanasilp, S (Thanasilp, Sarawalee); Hunsom, M (Hunsom, Mali)
Title: Effect of MEA fabrication techniques on the cell performance of Pt-Pd/C electrocatalyst for oxygen reduction in PEM fuel
cell
Source: FUEL, 89 (12): 3847-3852 DEC 2010
Language: English
Author Keywords: Catalyst-coated membrane; Catalyst-coated substrate; Pt-Pd/C electrocatalyst; PEM fuel cell; Decal transfer
technique
KeyWords Plus: CATALYST-COATED MEMBRANE; DIRECT SPRAY DEPOSITION; CCM; TEMPERATURE;
TECHNOLOGY; LAYER
Abstract: The effect of three different membrane electrode assembly (MEA) fabrication techniques, catalyst-coated substrate by
direct spray (CCS) and catalyst-coated membrane by direct spray (CCM-DS) or decal transfer (CCM-DT), on the performance of
oxygen reduction in a proton exchange membrane (PEM) fuel cell was carried out under identical conditions of Pt-Pd/C
electrocatalyst loading. The results indicated that the fabrication technique had only a very slight effect on the ohmic resistance of
the PEM fuel cell but it significantly affected the charge transfer resistance and open circuit voltage (OCV). The cells prepared by
the CCM method, and particularly by decal transfer, exhibited a significantly higher OCV but a lower ohmic and charge transfer
resistance compared with the other investigated fabrication techniques. By using cyclic voltammetry with H-2 adsorption, it was
found that the electrochemical active area of the electrocatalyst prepared by CCM-DT was higher than those prepared by CCS and
CCM-DS by around 1.76- and 1.05-fold, respectively. Under a H-2/O-2 system at 0.6 V, the cells with MEA made by CCM-DT
provided the highest cell performance of around 350 mA/cm(2), significantly greater than those prepared by the CCS and
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CCM-DS (149 and 42 mA/cm(2), respectively). (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Thanasilp, Sarawalee; Hunsom, Mali] Chulalongkorn Univ, Fac Sci, Fuels Res Ctr, Dept Chem Technol, Bangkok
10330, Thailand; [Hunsom, Mali] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Hunsom, M, Chulalongkorn Univ, Fac Sci, Fuels Res Ctr, Dept Chem Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn University
National Metal and Materials Technology Center (MTEC)
MT-B-52-END-09-069-G
The authors would like to thank the Center for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn University,
and The National Metal and Materials Technology Center (MTEC) (Grant No. MT-B-52-END-09-069-G) for financial support
of our project, plus The Petrochemical Technology Consortium, Department of Chemical Technology, Faculty of Science,
Chulalongkorn University and the Thai Government Stimulus Package 2 (TKK2555), under the Project for Establishment of
Comprehensive Center for Innovative Food, Health Products and Agriculture for facility support. Also, we thank the Publication
Counseling Unit (PCU) of Faculty of Science, Chulalongkorn University, and Dr. Robert D. J. Butcher for comments, suggestions
and checking the grammar.
Times Cited: 0
ISSN: 0016-2361
DOI: 10.1016/j.fuel.2010.07.008
29-char Source Abbrev.: FUEL
ISO Source Abbrev.: Fuel
Subject Category: Energy & Fuels; Engineering, Chemical
ISI Document Delivery No.: 653JK
Record 52 of 271
Author(s): Hengkrawit, C (Hengkrawit, Charinthip); Laohakosol, V (Laohakosol, Vichian); Udomkavanich, P (Udomkavanich,
Patanee)
Title: Rational Recursive Equations Characterizing Cotangent-tangent and Hyperbolic Cotangent-tangent Functions
Source: BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY, 33 (3): 421-428 2010
Language: English
Author Keywords: Rational recursive equations; cotangent-tangent functions; hyperbolic cotangent-tangent functions
Abstract: Using a technique of Rhouma in 2005, closed form solutions of certain rational recursive equations characterizing the
cotangent-tangent and the hyperbolic cotangent-tangent function solutions are derived.
Addresses: [Hengkrawit, Charinthip; Udomkavanich, Patanee] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330,
Thailand; [Laohakosol, Vichian] Kasetsart Univ, Dept Math, Bangkok 10900, Thailand; [Laohakosol, Vichian] Kasetsart Univ, Ctr
Adv Studies, Bangkok 10900, Thailand; [Laohakosol, Vichian] CHE, Ctr Excellence Math, Bangkok 10400, Thailand
Reprint Address: Hengkrawit, C, Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Research Funds
RTA 5180005
Centre of Excellence in Mathematics
CHE
KU Center for Advanced Studies, Thailand
This research is supported by the Thailand Research Funds RTA 5180005, the Centre of Excellence in Mathematics, CHE, and
the KU Center for Advanced Studies, Thailand.
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Times Cited: 0
Publisher: MALAYSIAN MATHEMATICAL SCIENCES SOC
Publisher Address: UNIV SAINS MALAYSIA, SCH MATHEMATICAL SCIENCES, PULAU PINANG, 11800 USM,
MALAYSIA
ISSN: 0126-6705
29-char Source Abbrev.: B MALAYS MATH SCI SOC
ISO Source Abbrev.: Bull. Malays. Math. Sci. Soc.
Subject Category: Mathematics
ISI Document Delivery No.: 650HJ
Record 53 of 271
Author(s): Kanputhorn, S (Kanputhorn, Sarawut); Petsom, A (Petsom, Amorn); Thamyongkit, P (Thamyongkit, Patchanita)
Title: Transformation of barakol into cassiarins A, B, and their derivatives
Source: TETRAHEDRON, 66 (38): 7539-7543 SEP 18 2010
Language: English
Author Keywords: Barakol; Cassiarin A; Cassiarin B; Anhydrobarakol chloride
KeyWords Plus: SIAMEA; ALKALOIDS
Abstract: Three semi-syntheses of cassiarins A and B from barakol are described. The route involving use of anhydrobarakol
chloride as a key precursor showed most versatility because it does not require an expensive catalyst, protection of functional
groups, or chromatographic purification, allowing the facile preparation of eight cassiarin derivatives. The photophysical
properties of these compounds were characterized by UV-vis absorption, fluorescence emission, and quantum yield. (C) 2010
Elsevier Ltd. All rights reserved.
Addresses: [Kanputhorn, Sarawut; Petsom, Amorn; Thamyongkit, Patchanita] Chulalongkorn Univ, Dept Chem, Res Ctr Bioorgan
Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Thamyongkit, P, Chulalongkorn Univ, Dept Chem, Res Ctr Bioorgan Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
We are thankful to Science and Technology Innovation Support Grant, Faculty of Science, Chulalongkorn University for partial
financial support in this research.
Times Cited: 0
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publisher Address: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
ISSN: 0040-4020
DOI: 10.1016/j.tet.2010.07.053
29-char Source Abbrev.: TETRAHEDRON
ISO Source Abbrev.: Tetrahedron
Subject Category: Chemistry, Organic
ISI Document Delivery No.: 650GD
Record 54 of 271
Author(s): Ioualalen, M (Ioualalen, M.); Arreaga-Vargas, P (Arreaga-Vargas, P.); Pophet, N (Pophet, N.); Chlieh, M (Chlieh, M.);
Ilayaraja, K (Ilayaraja, K.); Ordonez, J (Ordonez, J.); Renteria, W (Renteria, W.); Pazmino, N (Pazmino, N.)
Title: Numerical Modelling of the 26th December 2004 Indian Ocean Tsunami for the Southeastern Coast of India
Source: PURE AND APPLIED GEOPHYSICS, 167 (10): 1205-1214 OCT 2010
Language: English
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Author Keywords: 2004 Tsunami; Sumatra; runup; numerical simulation; Tamil Nadu; South India
KeyWords Plus: SUMATRA-ANDAMAN EARTHQUAKE; WAVE TRANSFORMATION; BOUSSINESQ; BREAKING;
RUPTURE; RUNUP
Abstract: A numerical simulation of the 26th December, 2004 Indian Ocean tsunami of the Tamil Nadu coastal zone is presented.
The simulation approach is based on a fully nonlinear Boussinesq tsunami propagation model and included an accurate
computational domain and a robust coseismic source. The simulation is first confronted to available tide gauge and runup
observations. The agreement between observations and the predicted wave heights allowed a reasonable validation of the
simulation. As a result, a full picture of the tsunami impact is provided over the entire coastal zone Tamil Nadu. The processes
responsible for coastal vulnerability are discussed.
Addresses: [Ioualalen, M.; Chlieh, M.] UPMC, Inst Rech Dev, IRD, UMR CNRS IRD, F-06235 Villefranche Sur Mer, France;
[Arreaga-Vargas, P.; Renteria, W.; Pazmino, N.] INO CAR, Inst Oceanog Armada Ecuador, Guayaquil, Ecuador; [Pophet, N.]
Chulalongkorn Univ, AVIC Lab, Dept Math, Fac Sci, Bangkok 10330, Thailand; [Ilayaraja, K.] Univ Madras, Dept Appl Geol,
Chennai 600025, Tamil Nadu, India
Reprint Address: Ioualalen, M, UPMC, Inst Rech Dev, IRD, UMR CNRS IRD, 2 Quai Darse,BP 48, F-06235 Villefranche Sur
Mer, France.
Funding Agency
Grant Number
French Agence Nationale Pour la Recherche, ANR TSUMOD ANR-05-CATT-016-02
The authors would like to thank the French Agence Nationale Pour la Recherche, ANR, for funding this work through the grant
TSUMOD ANR-05-CATT-016-02. M. Ioualalen addresses his undebtful thanks to the Department Milieu et Environement of the
Institut de Recherche pour le Developpement, IRD, for having granted him a long stay at Madras University and INOCAR,
Ecuador, especially R. Louat, J. Boulegue and P. Soler and P. Charvis (Geosciences Azur) for their constant support.
Times Cited: 0
Publisher: BIRKHAUSER VERLAG AG
Publisher Address: VIADUKSTRASSE 40-44, PO BOX 133, CH-4010 BASEL, SWITZERLAND
ISSN: 0033-4553
DOI: 10.1007/s00024-010-0053-9
29-char Source Abbrev.: PURE APPL GEOPHYS
ISO Source Abbrev.: Pure Appl. Geophys.
Subject Category: Geochemistry & Geophysics
ISI Document Delivery No.: 649SM
Record 55 of 271
Author(s): Wongsurawat, T (Wongsurawat, Thidathip); Leelatanawit, R (Leelatanawit, Rungnapa); Thamniemdee, N
(Thamniemdee, Natechanok); Uawisetwathana, U (Uawisetwathana, Umaporn); Karoonuthaisiri, N (Karoonuthaisiri, Nitsara);
Menasveta, P (Menasveta, Piamsak); Klinbunga, S (Klinbunga, Sirawut)
Title: Identification of testis-relevant genes using in silico analysis from testis ESTs and cDNA microarray in the black tiger
shrimp (Penaeus monodon)
Source: BMC MOLECULAR BIOLOGY, 11: Art. No. 55 AUG 9 2010
Language: English
KeyWords Plus: SEX-RELATED GENES; EXPRESSION; PROTEIN; DROSOPHILA; PROSAPOSIN; SEQUENCE; CYCLINS;
DOMAINS; COMPLEX; CLONING
Abstract: Background: Poor reproductive maturation of the black tiger shrimp (Penaeus monodon) in captivity is one of the
serious threats to sustainability of the shrimp farming industry. Understanding molecular mechanisms governing reproductive
maturation processes requires the fundamental knowledge of integrated expression profiles in gonads of this economically
important species. In P. monodon, a non-model species for which the genome sequence is not available, expressed sequence tag
(EST) and cDNA microarray analyses can help reveal important transcripts relevant to reproduction and facilitate functional
characterization of transcripts with important roles in male reproductive development and maturation.
Results: In this study, a conventional testis EST library was exploited to reveal novel transcripts. A total of 4,803 ESTs were
unidirectionally sequenced and analyzed in silico using a customizable data analysis package, ESTplus. After sequence assembly,
2,702 unique sequences comprised of 424 contigs and 2,278 singletons were identified; of these, 1,133 sequences are homologous
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to genes with known functions. The sequences were further characterized according to gene ontology categories (41% biological
process, 24% molecular function, 35% cellular component). Through comparison with EST libraries of other tissues of P.
monodon, 1,579 transcripts found only in the testis cDNA library were identified. A total of 621 ESTs have not been identified in
penaeid shrimp. Furthermore, cDNA microarray analysis revealed several ESTs homologous to testis-relevant genes were more
preferentially expressed in testis than in ovary. Representatives of these transcripts, homologs of saposin (PmSap) and Dmc1
(PmDmc1), were further characterized by RACE-PCR. The more abundant expression levels in testis than ovary of PmSap and
PmDmc1 were verified by quantitative real-time PCR in juveniles and wild broodstock of P. monodon.
Conclusions: Without a genome sequence, a combination of EST analysis and high-throughput cDNA microarray technology can
be a useful integrated tool as an initial step towards the identification of transcripts with important biological functions.
Identification and expression analysis of saposin and Dmc1 homologs demonstrate the power of these methods for characterizing
functionally important genes in P. monodon.
Addresses: [Wongsurawat, Thidathip; Leelatanawit, Rungnapa; Thamniemdee, Natechanok; Uawisetwathana, Umaporn;
Karoonuthaisiri, Nitsara; Klinbunga, Sirawut] Natl Sci & Technol Dev Agcy, Natl Ctr Genet Engn & Biotechnol BIOTEC,
Klongluang 12120, Pathumthani, Thailand; [Leelatanawit, Rungnapa] Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok
10330, Thailand; [Menasveta, Piamsak; Klinbunga, Sirawut] Chulalongkorn Univ, Ctr Excellence Marine Biotechnol, Fac Sci,
Bangkok 10330, Thailand; [Menasveta, Piamsak] Chulalongkorn Univ, Dept Marine Sci, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Karoonuthaisiri, N, Natl Sci & Technol Dev Agcy, Natl Ctr Genet Engn & Biotechnol BIOTEC, Klong 1,
Klongluang 12120, Pathumthani, Thailand.
Funding Agency
Grant Number
Royal Golden Jubilee PhD program, Thailand
This research is supported by the National Center for Genetic Engineering and Biotechnology (BIOTEC). Part of this research
library construction, RACE-PCR and real-time-PCR) was carried out by RL during the PhD program and supported by the
Royal Golden Jubilee PhD program, the Thailand Research Funds TRF), Thailand. We would like to thank Dr. Amy Lum for
reading and improving the manuscript. Also, we would like to thank Prof. Morakot Tanticharoen for her mentorship of this
research program.
Times Cited: 0
ISSN: 1471-2199
Article Number: 55
DOI: 10.1186/1471-2199-11-55
29-char Source Abbrev.: BMC MOL BIOL
ISO Source Abbrev.: BMC Mol. Biol.
Subject Category: Biochemistry & Molecular Biology
ISI Document Delivery No.: 649WP
Record 56 of 271
Author(s): Kaulpiboon, J (Kaulpiboon, Jarunee); Pongsawasdi, P (Pongsawasdi, Piamsook); Zimmermann, W (Zimmermann,
Wolfgang)
Title: Altered product specificity of a cyclodextrin glycosyltransferase by molecular imprinting with cyclomaltododecaose
Source: JOURNAL OF MOLECULAR RECOGNITION, 23 (5): 480-485 SEP-OCT 2010
Language: English
Author Keywords: molecular imprinting; cross-linked proteins; cyclodextrin glycosyltransferase; cyclomaltododecaose; product
specificity
KeyWords Plus: LARGE-RING CYCLODEXTRINS; SCHARDINGER DEXTRINS; BACILLUS-MACERANS; CROSSLINKING; GLUCANOTRANSFERASE; PROTEIN; PURIFICATION; TEMPERATURE; SELECTIVITY; AMYLOSE
Abstract: Cyclodextrin glycosyltransferases (CGTases), members of glycoside hydrolase family 13, catalyze the conversion of
amylose to cyclodextrins (CDs), circular alpha-(1,4)-linked glucopyranose oligosaccharides of different ring sizes. The CD
containing 12 alpha-D-glucopyranose residues was preferentially synthesized by molecular imprinting of CGTase from
Paenibacillus sp. A11 with cyclomaltododecaose (CD12) as the template molecule. The imprinted CGTase was stabilized by
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cross-linking of the derivatized protein. A high proportion of CD12 and larger CDs was obtained with the imprinted enzyme in an
aqueous medium. The molecular imprinted CGTase showed an increased catalytic efficiency of the CD12-forming cyclization
reaction, while decreased k(cat)/K-m values of the reverse ring-opening reaction were observed. The maximum yield of CD12
was obtained when the imprinted CGTase was reacted with amylose at 40 degrees C for 30 min. Molecular imprinting proved to
be an effective means toward increase in the yield of large-ring CDs of a specific size in the biocatalytic production of these
interesting novel host compounds for molecular encapsulations. Copyright (C) 2010 John Wiley & Sons, Ltd.
Addresses: [Zimmermann, Wolfgang] Univ Leipzig, Inst Biochem, Dept Microbiol & Bioproc Technol, D-04103 Leipzig,
Germany; [Kaulpiboon, Jarunee] Thammasat Univ, Fac Med, Dept Preclin Sci Biochem, Pathumthanee, Thailand; [Pongsawasdi,
Piamsook] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok, Thailand
Reprint Address: Zimmermann, W, Univ Leipzig, Inst Biochem, Dept Microbiol & Bioproc Technol, D-04103 Leipzig, Germany.
Funding Agency
Grant Number
Alexander von Humboldt Foundation, Germany
J. Kaulpiboon was supported by a research fellowship from the Alexander von Humboldt Foundation, Germany.
Times Cited: 0
ISSN: 0952-3499
DOI: 10.1002/jmr.1015
29-char Source Abbrev.: J MOL RECOGNIT
ISO Source Abbrev.: J. Mol. Recognit.
Subject Category: Biochemistry & Molecular Biology; Biophysics
ISI Document Delivery No.: 647AB
Record 57 of 271
Author(s): Meemark, Y (Meemark, Yotsanan); Wiroonsri, N (Wiroonsri, Nathakhun)
Title: The quadratic digraph on polynomial rings over finite fields
Source: FINITE FIELDS AND THEIR APPLICATIONS, 16 (5): 334-346 SEP 2010
Language: English
Author Keywords: Exponents; Finite fields; Quadratic digraphs
Abstract: This work is based on ideas of Somer and of Krizek on the structure of digraphs associated with quadratic congruence
modulo n. We study the quadratic digraph whose vertex set V-f is the quotient ring A/fA and edge set is given by E-f((2)) = {((g)
over bar,(g) over bar (2)): (g) over bar is an element of A/fA}. where A =F-q[x] and f is an element of A is a mimic polynomial
of degree 1 in A. Our main tool is the exponent of the unit group (A/fA)* and we obtain results parallel to them. (C) 2010 Elsevier
Inc. All rights reserved.
Addresses: [Meemark, Yotsanan; Wiroonsri, Nathakhun] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand;
[Meemark, Yotsanan] CHE, Ctr Excellence Math, Bangkok 10400, Thailand
Reprint Address: Meemark, Y, Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center of Excellence in Mathematics, the Commission of Higher Education
The research of the first author was supported in part by the Center of Excellence in Mathematics, the Commission of Higher
Education
Times Cited: 0
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ISSN: 1071-5797
DOI: 10.1016/j.ffa.2010.05.004
29-char Source Abbrev.: FINITE FIELDS THEIR APPL
ISO Source Abbrev.: Finite Fields their Appl.
Subject Category: Mathematics, Applied; Mathematics
ISI Document Delivery No.: 647MW
Record 58 of 271
Author(s): Chityuttakan, C (Chityuttakan, C.); Wantong, K (Wantong, K.); Chatraphorn, S (Chatraphorn, S.); Yoodee, K (Yoodee,
K.)
Title: Evolution of crystal structure of Zn:N films under high temperature
Source: CRYSTAL RESEARCH AND TECHNOLOGY, 45 (9): 925-928 SEP 2010
Language: English
Author Keywords: zinc films; nitrogen; zinc nitride; high temperature x-ray diffraction
KeyWords Plus: ZNO THIN-FILMS; OPTICAL BAND-GAP; FABRICATION; STABILITY
Abstract: Zinc-nitrogen (Zn:N) compound thin film was prepared from a pure metallic Zn target by rf magnetron sputtering at
ambient temperature under the mixture of nitrogen and argon gases with the ratio of 1:1. High temperature x-ray diffraction
(HTXRD) measurement under vacuum was used to examine the evolution of structural properties of the Zn:N film. At ambient
temperature, the (002), (100), and (101) planes corresponding to Zn structure were observed while at higher temperature, the left
shifts corresponding to the increase of lattice constants a and c of Zn were observed. At temperatures of 320 degrees C, 481
degrees C and 554 degrees C, the (222), (321) and (400) planes corresponding to Zn3N2 structure were observed with the
decrease in the intensity amplitudes of the peaks belonging to the Zn structure. The results indicate the gradual transformation of
the Zn3N2 phase in the Zn:N films at temperature greater than 320 degrees C. 2010 WILEY-VCH Verlag GmbH & Co. KGaA,
Weinheim
Addresses: [Chityuttakan, C.; Wantong, K.; Chatraphorn, S.; Yoodee, K.] Chulalongkorn Univ, Fac Sci, Dept Phys, SPRL,
Bangkok 10330, Thailand; [Chityuttakan, C.; Wantong, K.; Chatraphorn, S.; Yoodee, K.] CHE, Thailand Ctr Excellence Phys, Res
Ctr Thin Film Phys, Bangkok 10400, Thailand
Reprint Address: Chityuttakan, C, Chulalongkorn Univ, Fac Sci, Dept Phys, SPRL, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The authors would like to acknowledge the financial supports from the 90th Anniversary of Chulalongkorn
University Fund (Ratchadaphisek-somphot Endowment Fund), the equipment to run this experiment from the Thailand-Japan
Technology Transfer Program (TJTTP) and the Metallurgy and Material Science Research Institute, Chulalongkorn University,
for the access to the high temperature XRD facility.
Times Cited: 0
ISSN: 0232-1300
DOI: 10.1002/crat.201000260
29-char Source Abbrev.: CRYST RES TECH
ISO Source Abbrev.: Cryst. Res. Technol.
Subject Category: Crystallography
ISI Document Delivery No.: 646MP
Record 59 of 271
Author(s): Sirikulkajorn, A (Sirikulkajorn, Anchalee); Tuntulani, T (Tuntulani, Thawatchai); Ruangpornvisuti, V
(Ruangpornvisuti, Vithaya); Tomapatanaget, B (Tomapatanaget, Boosayarat); Davis, AP (Davis, Anthony P.)
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Title: A steroid-based receptor for unprotected amino acids: the enantioselective recognition of L-tryptophan
Source: TETRAHEDRON, 66 (37): 7423-7428 SEP 11 2010
Language: English
KeyWords Plus: HOST-GUEST COMPLEXATION; UREA-BASED RECEPTORS; CHIRAL RECOGNITION; MOLECULAR
RECOGNITION; CARBOXYLATE BINDING; SYNTHETIC RECEPTOR; ANION RECEPTORS; ENANTIOMERIC
RECOGNITION; SELECTIVE BINDING; TRIAMINO-ANALOG
Abstract: A cholapod receptor possessing urea binding sites at C3, C7, and C12 positions and with an intrinsic chiral structure
was synthesized, and the binding abilities toward amino acids in both L- and D- forms (Trp, Phe, Leu, and Ala) were studied
using H-1 NMR spectroscopy, UV-vis spectroscopy and computer simulation. Changes in H-1 NMR spectra of the receptor
revealed that complexation with amino acids occurred via hydrogen bonding and CH-pi interactions. Binding to tryptophan was
especially strong, and was found to be enantioselective (K-a=480 M-1 for L-Trp, 260 M-1 for D-Trp). NOESY and computer
simulations were used to investigate the structures of the diastereomeric complexes between the receptor and the tryptophan
enantiomers. In the case of L-Trp the carboxylate group bound at the two ureas adjacent to C7 and C12, while D-Trp was
positioned closer to the urea adjacent to C3. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Sirikulkajorn, Anchalee; Tuntulani, Thawatchai; Ruangpornvisuti, Vithaya; Tomapatanaget, Boosayarat]
Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit, Bangkok 10330, Thailand; [Sirikulkajorn, Anchalee; Davis,
Anthony P.] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
Reprint Address: Tomapatanaget, B, Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
Development Science Talent Project
Thailand Research Fund and Commission on Higher Education
RTA5080006
National Center of Excellence for Petroleum, Petrochemical, and Advanced Materials (NCE-PPAM)
Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture
(PERFECTA) UK EPSRC
EP/E021581/1
A.S. is a Ph.D. student supported by Development Science Talent Project. We thank the Thailand Research Fund and
Commission on Higher Education (RTA5080006), the National Center of Excellence for Petroleum, Petrochemical, and
Advanced Materials (NCE-PPAM) and the Project for Establishment of Comprehensive Center for Innovative Food, Health
Products and Agriculture (PERFECTA) UK EPSRC (EP/E021581/1) for financial support.
Times Cited: 0
ISSN: 0040-4020
DOI: 10.1016/j.tet.2010.06.069
ISI Document Delivery No.: 645PO
Record 60 of 271
Author(s): Pruttisirikul, T (Pruttisirikul, Theerachai); Prasassarakich, P (Prasassarakich, Pattarapan); Rempel, GL (Rempel,
Garry L.); Hinchiranan, N (Hinchiranan, Napida)
Title: Thioacetate- and mercapto-functionalized hydrogenated natural rubber
Source: REACTIVE & FUNCTIONAL POLYMERS, 70 (9): 674-683 SEP 2010
Language: English
Author Keywords: Hydrogenation; Natural rubber; Functionalization; Compatibilization; Mercapto group
KeyWords Plus: NR-EPDM BLENDS; MECHANICAL-PROPERTIES; MODIFIED COPOLYMERS; NBR/EPDM BLENDS;
POLYMER BLENDS; COMPATIBILIZATION; THIOL
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Abstract: Due to the differences in unsaturation levels of constituent rubbers, thioacetate and mercapto functional groups were
introduced into hydrogenated natural rubber (HNR) to increase the compatibility of natural rubber (NR)/HNR blends. The effect
of thioacetic acid and initiator concentrations including reaction time on the thioacetate content in HNR was investigated.
Methanolysis of thioacetate-modified HNR (HNRTA) yielded mercapto-modified HNR (HNRSH). The addition of HNRTA or
HNRSH into NR/HNR blends (50/50 wt ratio) increased the tensile strength. The improved mechanical properties of the
compatibilized blends were confirmed by scanning electron microscopy, indicating a co-continuous morphology. Furthermore, the
susceptibility of the vulcanizates to changes in temperature and ozone were also reported. (C) 2010 Elsevier Ltd. All rights
reserved.
Addresses: [Prasassarakich, Pattarapan; Hinchiranan, Napida] Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok
10330, Thailand; [Pruttisirikul, Theerachai] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci, Bangkok 10330,
Thailand; [Rempel, Garry L.] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada; [Pruttisirikul, Theerachai;
Prasassarakich, Pattarapan; Hinchiranan, Napida] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Hinchiranan, N, Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Commission on the Higher Education
MRG4980065
The author gratefully acknowledges the Thailand Research Fund and the Commission on the Higher Education for fiscal year
2006-2008 (MRG4980065), the Ratchadapiseksompoch Fund, Chulalongkorn University, the Center for Petroleum,
Petrochemicals, and Advanced Materials, and the Graduate School of Chulalongkorn University for their financial support.
Times Cited: 0
ISSN: 1381-5148
DOI: 10.1016/j.reactfunctpolym.2010.04.009
29-char Source Abbrev.: REACT FUNCT POLYM
ISO Source Abbrev.: React. Funct. Polym.
Subject Category: Chemistry, Applied; Engineering, Chemical; Polymer Science
ISI Document Delivery No.: 644DS
Record 61 of 271
Author(s): Kangwansupamonkon, W (Kangwansupamonkon, Wiyong); Jitbunpot, W (Jitbunpot, Walasinee); Kiatkamjornwong, S
(Kiatkamjornwong, Suda)
Title: Photocatalytic efficiency of TiO2/poly[acrylamide-co-(acrylic acid)] composite for textile dye degradation
Source: POLYMER DEGRADATION AND STABILITY, 95 (9): 1894-1902 SEP 2010
Language: English
Author Keywords: TiO2; Hydrogel; Photocatalytic degradation; Dye removal
KeyWords Plus: METHYLENE-BLUE; WASTE-WATER; AQUEOUS-SOLUTIONS; POLY(ACRYLAMIDE-CO-ACRYLIC
ACID); TITANIUM-DIOXIDE; PHASE-TRANSITION; CATIONIC DYES; METAL-IONS; REMOVAL; TIO2
Abstract: A novel photocatalytically degradable TiO2/poly[acrylamide-co-(acrylic acid)) composite hydrogel (TiO2/poly[AAmco-AAc]) was synthesized by polymerization in an aqueous solution with N,N'-methyl-enebisacrylamide as the crosslinker and
ammonium persulphate and TEMED as the initiator pair. The combined and separate effects of photodegradation and adsorption
processes for dye removal were evaluated using methylene blue (MB) as the model dye for a photodegradation target, and
compared with those of the neat poly[AAm-co-AAc], and a commercially available TiO2 photocatalyst (Degussa P-25). Without
photodegradation (i.e. in the dark), the TiO2/poly[AAm-co-AAc] composite adsorbed up to 85% of the MB from a 5 mg L-1 MB
solution in 15 min compared to only 10% for the pristine TiO2. The reproducibility in photodegradation of the reused poly[AAmco-AAc] composite was also investigated, where poly[AAm-co-AAc] was found to be photocatalytically degraded under UV
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irradiation. Therefore, the TiO2/poly[AAm-co-AAc] composite hydrogel is a good dye adsorber with self-photodegradability and
it also can easily be separated from the reaction by simple filtration. With these properties, the TiO2/poly[AAm-co-AAc]
hydrogel can be called a green polymer for use in the photodegradation adsorption process for the abatement of various pollutants.
(C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Kiatkamjornwong, Suda] Chulalongkorn Univ, Fac Sci, Dept Imaging & Printing Technol, Bangkok 10330, Thailand;
[Kangwansupamonkon, Wiyong] Natl Sci & Technol Dev Agcy, Natl Nanotechnol Ctr, Klongluang 12120, Pathumthani, Thailand;
[Jitbunpot, Walasinee] Chulalongkorn Univ, Fac Sci, Program Petrochem & Polymer Sci, Bangkok 10330, Thailand
Reprint Address: Kiatkamjornwong, S, Chulalongkorn Univ, Fac Sci, Dept Imaging & Printing Technol, Phyathai Rd, Bangkok
10330, Thailand.
Funding Agency
Grant Number
Thailand Research Fund - Higher Education Commission RTA5080004
National Nanotechnology Center, NSTDA, Thailand
P-00-60064
This research is financially supported by a Research Team Consolidation Grant for Senior Research Scholars from the Thailand
Research Fund - Higher Education Commission (contract number RTA5080004). The authors are also grateful for the partial
research funding from the National Nanotechnology Center, NSTDA, Thailand (Grant number P-00-60064). Research facilities
provided by the Polymer Imaging Laboratory of Chulalongkorn University's Imaging and Printing Technology Department and
the National Nanotechnology Center, National Science and Technology Development Agency, are highly appreciated. Research
materials donated by the mentioned manufacturers are also acknowledged.
Times Cited: 0
ISSN: 0141-3910
DOI: 10.1016/j.polymdegradstab.2010.04.019
29-char Source Abbrev.: POLYM DEGRAD STABIL
ISO Source Abbrev.: Polym. Degrad. Stabil.
ISI Document Delivery No.: 644IV
Record 62 of 271
Author(s): Bovornratanaraks, T (Bovornratanaraks, T.); Saengsuwan, V (Saengsuwan, V.); Yoodee, K (Yoodee, K.); McMahon,
MI (McMahon, M. I.); Hejny, C (Hejny, C.); Ruffolo, D (Ruffolo, D.)
Title: High pressure orthorhombic structure of CuInSe2
Source: JOURNAL OF PHYSICS-CONDENSED MATTER, 22 (35): Art. No. 355801 SEP 8 2010
Language: English
KeyWords Plus: PHOTOLUMINESCENCE; ABSORPTION; IONICITY
Abstract: The structural behaviour of CuInSe2 under high pressure has been studied up to 53 GPa using angle-dispersive x-ray
powder diffraction techniques. The previously reported structural phase transition from its ambient pressure tetragonal structure to
a high pressure phase with a NaCl-like cubic structure at 7.6 GPa has been confirmed. On further compression, another structural
phase transition is observed at 39 GPa. A full structural study of this high pressure phase has been carried out and the high
pressure structure has been identified as orthorhombic with space group Cmcm and lattice parameters a = 4.867(8) angstrom, b =
5.023(8) angstrom and c = 4.980(3) angstrom at 53.2(2) GPa. This phase transition behaviour is similar to those of analogous
binary and trinary semiconductors, where the orthorhombic Cmcm structure can also be viewed as a distortion of the cubic
NaCl-type structure.
Addresses: [Bovornratanaraks, T.; Saengsuwan, V.; Yoodee, K.] Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330,
Thailand; [Bovornratanaraks, T.; Yoodee, K.; Ruffolo, D.] CHE, ThEP Ctr, Bangkok 10400, Thailand; [McMahon, M. I.; Hejny,
C.] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland; [McMahon, M. I.; Hejny, C.] Univ Edinburgh, Ctr Sci
Extreme Condit, Edinburgh EH9 3JZ, Midlothian, Scotland; [Ruffolo, D.] Mahidol Univ, Fac Sci, Dept Phys, Bangkok 10400,
Thailand
Reprint Address: Bovornratanaraks, T, Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Thai Government
TKK2555
Asahi Glass Foundation
MRG4980031
DBG5280002
We thank Roberts M A of the SRS for assistance in performing the diffraction experiments. We would also like to express our
thanks to our colleagues Falconi S and Lundegard L F for their assistance with some of the data collection. This work was
supported by the Thai Government Stimulus Package2 (TKK2555), under the Project for Establishment of Comprehensive
Centre for Innovative Food Health Products and Agriculture, Research Funds from the Faculty of Science, Chulalongkorn
University, the Asahi Glass Foundation and Thailand Research Fund contract number MRG4980031 and DBG5280002. The
synchrotron powder diffraction facilities were provided by Daresbury Laboratory. TB acknowledge research grant supported by
National Research Council of Thailand.
Times Cited: 0
Publisher: IOP PUBLISHING LTD
Publisher Address: DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
ISSN: 0953-8984
DOI: 10.1088/0953-8984/22/35/355801
29-char Source Abbrev.: J PHYS-CONDENS MATTER
ISO Source Abbrev.: J. Phys.-Condes. Matter
Subject Category: Physics, Condensed Matter
ISI Document Delivery No.: 645AA
Record 63 of 271
Author(s): Petnual, P (Petnual, Pariyaphon); Sangvanich, P (Sangvanich, Polkit); Karnchanatat, A (Karnchanatat, Aphichart)
Title: A Lectin from the Rhizomes of Turmeric (Curcuma longa L.) and Its Antifungal, Antibacterial, and alpha-Glucosidase
Inhibitory Activities
Source: FOOD SCIENCE AND BIOTECHNOLOGY, 19 (4): 907-916 AUG 2010
Language: English
Author Keywords: lectin; Curcuma longa; antifungal activity; antibacterial activity; alpha-glucosidase inhibitory
KeyWords Plus: PURIFICATION; PROTEIN; SEEDS
Abstract: A Curcuma longa L. lectin was purified by aqueous extraction, 80% ammonium sulfate precipitation and ConA
Sepharose affinity chromatography. Its specific activity was of 64,566 HU/mg protein for a yield of 41.2% total protein. The
molecular weight is of 17.3 kDa. It has hemagglutinating activity against human blood group B, rabbit, mouse, rat, guinea pig,
geese, and sheep erythrocytes. The optimum pH is between 6-7, and stable up to 40 degrees C. Activity was stimulated by Ca2+
and Mn2+. The internal sequence indicated similarity with legume lectin family. Moreover, at concentration of 47 and 94 mg/0.3
cm(2) disc showed antifungal activity against Exserohilum turicicum, Fusarium oxysporum, and Colectrotrichum cassiicola. The
minimal inhibitory concentration were 0.002, 0.005, 0.011, 0.09, and 0.046 mg/mL Pseudomonas aeruginosa, Staphylococcus
aureus, Bacillus subtilis, Escheriehia coli, and Candida albicans, respectively. Additionally, it contains a high a-glucosidase
inhibitory activity with an IC50 of 8 mg/mL.
Addresses: [Sangvanich, Polkit; Karnchanatat, Aphichart] Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Bangkok 10330,
Thailand; [Petnual, Pariyaphon] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330, Thailand; [Sangvanich,
Polkit] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand
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Funding Agency
Grant Number
Chulalongkom University graduate school
National Research University Project of CHE
Ratchadaphiseksomphot Endowment Fund
AM007I
Faculty of Science
Chulalongkom University
The authors thank the Chulalongkom University graduate school thesis grant for financial support of this research, The National
Research University Project of CHE and the Ratchadaphiseksomphot Endowment Fund (AM007I), and the Institute of
Biotechnology and Genetic Engineering and Biotechnology program, the Faculty of Science, Chulalongkom University for
support and facilities. We also, thank Dr. Robert Butcher (Publication Counseling Unit, Chulalongkom University) for his
constructive comments in preparing this manuscript.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1226-7708
DOI: 10.1007/s10068-010-0128-5
29-char Source Abbrev.: FOOD SCI BIOTECHNOL
ISO Source Abbrev.: Food Sci. Biotechnol.
ISI Document Delivery No.: 646CL
Record 64 of 271
Author(s): Nuclear, P (Nuclear, Paulwatt); Sommit, D (Sommit, Damrong); Boonyuen, N (Boonyuen, Nattawut); Pudhom, K
(Pudhom, Khanitha)
Title: Butenolide and Furandione from an Endophytic Aspergillus terreus
Source: CHEMICAL & PHARMACEUTICAL BULLETIN, 58 (9): 1221-1223 SEP 2010
Language: English
Author Keywords: butenolide; furandione; Aspergillus terreus
KeyWords Plus: METABOLITES; PRODUCTS
Abstract: A new butenolide, aspernolide D (1), and furandione, asperterone (2), together with four known butenolides,
butyrolactones I-IV and aspernolide B, were obtained from cultures of the endophytic fungus Aspergillus terreus, isolated from the
flowering plant Mammea siamensis. The structures of these compounds were elucidated by analysis of NMR spectroscopic and
mass spectrometric data.
Addresses: [Pudhom, Khanitha] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand;
[Nuclear, Paulwatt] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330, Thailand; [Sommit, Damrong]
Mahanakorn Univ Technol, Fac Sci, Dept Chem, Bangkok 10530, Thailand; [Boonyuen, Nattawut] Natl Ctr Genet Engn &
Biotechnol BIOTEC, Pathum Thani 12120, Thailand
Reprint Address: Pudhom, K, Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Science and Technology Development Agency, Ministry of Science and Technology
TKK25555
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Financial support from the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphisek Somphot Endowment Fund) and
National Science and Technology Development Agency, Ministry of Science and Technology, is gratefully acknowledged. We
also thank the Center for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn University, for partial support.
Finally, we are grateful for the research fund from the Thai Government Stimulus Package 2 (TKK25555), under the Project for
Establishment of a Comprehensive Center for Innovative Food, Health Products and Agriculture.
Times Cited: 0
Publisher: PHARMACEUTICAL SOC JAPAN
Publisher Address: 2-12-15-201 SHIBUYA, SHIBUYA-KU, TOKYO, 150, JAPAN
ISSN: 0009-2363
29-char Source Abbrev.: CHEM PHARM BULL TOKYO
ISO Source Abbrev.: Chem. Pharm. Bull.
Subject Category: Chemistry, Medicinal; Chemistry, Multidisciplinary; Pharmacology & Pharmacy
ISI Document Delivery No.: 645FP
Record 65 of 271
Author(s): Traiphol, N (Traiphol, Nisanart); Suntako, R (Suntako, Rudeerat); Chanthornthip, K (Chanthornthip, Kasama)
Title: Roles of polymeric dispersant charge density on lead zirconate titanate aqueous processing
Source: CERAMICS INTERNATIONAL, 36 (7): 2147-2153 SEP 2010
Language: English
Author Keywords: Suspensions; Mixing; Surfaces; PZT
KeyWords Plus: BARIUM-TITANATE; INTERPARTICLE FORCES; ALUMINA SUSPENSIONS; ADSORPTION;
CERAMICS; MEDIA; PH; POLYELECTROLYTE; STABILIZATION; STABILITY
Abstract: Poly(acrylic acid) (PAA) and poly(acrylic acid-co-maleic acid) (PACM) were used as dispersants in preparation of
lead zirconate titanate (PZT) aqueous suspensions. The effects of dispersant structure on particle stabilization were investigated
through properties of the suspensions. Viscosity and sedimentation height measurements showed that addition of the dispersants
improved particle stabilization. The dispersant concentrations to obtain the lowest viscosity were 0.4 wt% for PAA and 0.2 wt%
for PACM based on powder dried weight basis. Furthermore, effects of pH were studied on the suspensions prepared with 0.2
wt% dispersants. Viscosity and sedimentation behaviors indicated the improvements of particle dispersion and suspension
stability with an increasing pH. Particle dispersion revealed by laser light scattering and scanning electron microscopy supported
an improvement of particle dispersion at alkaline pHs. Detailed analysis of these data indicated that the PACM exhibited higher
dispersant efficiency for PZT aqueous suspension in all conditions. The results were discussed based on the concentrations of
anionic -COO- groups at various pHs and charge density along polymeric backbone of the dispersants. (C) 2010 Elsevier Ltd and
Techna Group S.r.l. All rights reserved.
Addresses: [Traiphol, Nisanart; Suntako, Rudeerat; Chanthornthip, Kasama] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Res
Unit Adv Ceram, Bangkok 10330, Thailand; [Traiphol, Nisanart; Suntako, Rudeerat; Chanthornthip, Kasama] Chulalongkorn Univ,
Natl Ctr Excellence Petr Petrochem & Adv Mat, Res Unit Adv Ceram & Polymer Mat, Bangkok 10330, Thailand
Reprint Address: Traiphol, N, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Res Unit Adv Ceram, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Coordinating Center for Thai Government Science and Technology Scholarship Students (CSTS)
National Science and Technology Development Agency (NSTDA)
National Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkom
University
This research was kindly supported by the Coordinating Center for Thai Government Science and Technology Scholarship
Students (CSTS), National Science and Technology Development Agency (NSTDA) and National Center of Excellence for
Petroleum, Petrochemicals, and Advanced Materials, Chulalongkom University.
Times Cited: 0
23/11/2553 18:36
ISSN: 0272-8842
DOI: 10.1016/j.ceramint.2010.05.018
29-char Source Abbrev.: CERAM INT
ISO Source Abbrev.: Ceram. Int.
Subject Category: Materials Science, Ceramics
ISI Document Delivery No.: 645VM
Record 66 of 271
Author(s): Soontharapirakkul, K (Soontharapirakkul, Kanteera); Incharoensakdi, A (Incharoensakdi, Aran)
Title: Na+-stimulated ATPase of alkaliphilic halotolerant cyanobacterium Aphanothece halophytica translocates Na+ into
proteoliposomes via Na+ uniport mechanism
Source: BMC BIOCHEMISTRY, 11: Art. No. 30 AUG 7 2010
Language: English
KeyWords Plus: P-TYPE ATPASE; TETRASELMIS PLATYMONAS VIRIDIS; MICROALGA DUNALIELLA-MARITIMA;
SYNECHOCYSTIS SP PCC-6803; PLASMA-MEMBRANE; SODIUM-PUMP; SACCHAROMYCES-CEREVISIAE;
STREPTOCOCCUS-FAECALIS; ANAEROBIC ALKALIPHILE; COMPATIBLE SOLUTES
Abstract: Background: When cells are exposed to high salinity conditions, they develop a mechanism to extrude excess Na+ from
cells to maintain the cytoplasmic Na+ concentration. Until now, the ATPase involved in Na+ transport in cyanobacteria has not
been characterized. Here, the characterization of ATPase and its role in Na+ transport of alkaliphilic halotolerant Aphanothece
halophytica were investigated to understand the survival mechanism of A. halophytica under high salinity conditions.
Results: The purified enzyme catalyzed the hydrolysis of ATP in the presence of Na+ but not K+, Li+ and Ca2+. The apparent K-m
values for Na+ and ATP were 2.0 and 1.2 mM, respectively. The enzyme is likely the F1F0-ATPase based on the usual subunit
pattern and the protection against N,N'-dicyclohexylcarbodiimide inhibition of ATPase activity by Na+ in a pH-dependent manner.
Proteoliposomes reconstituted with the purified enzyme could take up Na+ upon the addition of ATP. The apparent K-m values for
this uptake were 3.3 and 0.5 mM for Na+ and ATP, respectively. The mechanism of Na+ transport mediated by Na+-stimulated
ATPase in A. halophytica was revealed. Using acridine orange as a probe, alkalization of the lumen of proteoliposomes
reconstituted with Na+-stimulated ATPase was observed upon the addition of ATP with Na+ but not with K+, Li+ and Ca2+. The
Na+- and ATP-dependent alkalization of the proteoliposome lumen was stimulated by carbonyl cyanide m chlorophenylhydrazone
(CCCP) but was inhibited by a permeant anion nitrate. The proteoliposomes showed both ATPase activity and ATP-dependent
Na+ uptake activity. The uptake of Na+ was enhanced by CCCP and nitrate. On the other hand, both CCCP and nitrate were shown
to dissipate the preformed electric potential generated by Na+-stimulated ATPase of the proteoliposomes.
Conclusion: The data demonstrate that Na+-stimulated ATPase from A. halophytica, a likely member of F-type ATPase, functions
as an electrogenic Na+ pump which transports only Na+ upon hydrolysis of ATP. A secondary event, Na+- and ATP-dependent
H+ efflux from proteoliposomes, is driven by the electric potential generated by Na+-stimulated ATPase.
Addresses: [Soontharapirakkul, Kanteera; Incharoensakdi, Aran] Chulalongkorn Univ, Dept Biochem, Fac Sci, Lab
Cyanobacterial Biotechnol, Bangkok 10330, Thailand
Reprint Address: Incharoensakdi, A, Chulalongkorn Univ, Dept Biochem, Fac Sci, Lab Cyanobacterial Biotechnol, Bangkok
10330, Thailand.
Funding Agency
Grant Number
BRG 4880004
Royal Golden Jubilee Ph.D. program
Thai Government
TKK2555
This work was supported by the Thailand Research Fund (BRG 4880004) to AI, the Commission on Higher Education, Thailand
(the university staff development consortium), the Royal Golden Jubilee Ph.D. program, and the 90th Anniversary of
Chulalongkorn University Fund (Ratchadaphiseksomphote Endowment Fund). AI also received the support from the Thai
Government Stimulus Package 2 (TKK2555) under the Project for Establishment of Comprehensive Center for Innovative Food,
Health Products and Agriculture (PERFECTA). We thank Dr. Julian Eaton-Rye, University of Otago for editing the manuscript.
Times Cited: 0
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ISSN: 1471-2091
Article Number: 30
DOI: 10.1186/1471-2091-11-30
29-char Source Abbrev.: BMC BIOCHEM
ISO Source Abbrev.: BMC Boichem.
ISI Document Delivery No.: 645FF
Record 67 of 271
Author(s): Aree, T (Aree, Thammarat); Antia, BS (Antia, Bassey S.); Ekpa, OD (Ekpa, Okon D.); Kittakoop, P (Kittakoop,
Prasat)
Title: Paraherquamide E
Source: ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 66: O2227-U1583 Part 9 SEP 2010
Language: English
KeyWords Plus: PENICILLIUM-CHARLESII; ANTIPARASITIC AGENTS; BIOSYNTHESIS
Abstract: In the title compound, C28H35N3O4, also known as 14-deoxyparaherquamide A, the two pyrrolidine rings adopt
envelope conformations. The piperazine ring of the diazabicyclo[2.2.2]octan-3-one unit adopts a boat conformation whereas the
two piperidine rings are in distorted boat conformations. Intramolecular C-H center dot center dot center dot O hydrogen bonds
are observed. In the crystal, the molecules are linked into chains along the b axis by intermolecular N-H center dot center dot
center dot O hydrogen bonds.
Addresses: [Aree, Thammarat] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Antia, Bassey S.; Ekpa,
Okon D.] Univ Calabar, Dept Pure & Appl Chem, Calabar, Nigeria; [Kittakoop, Prasat] Chulabhorn Res Inst, Bangkok 10210,
Thailand; [Kittakoop, Prasat] Chulabhorn Grad Inst, Chem Biol Program, Bangkok 10210, Thailand
Reprint Address: Aree, T, Chulalongkorn Univ, Fac Sci, Dept Chem, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
TKK2555
Center for Environmental Health, Toxicology and Management of Chemicals (ETM)
This work wass supported by the Thai Government Stimulus Package 2 (TKK2555), under the Project for the Establishment of a
Comprehensive Center for Innovative Food, Health Products and Agriculture (PERFECTA), the Center for Petroleum,
Petrochemicals and Advanced Materials, Chulalongkorn University (to TA), the Thailand Research Fund (TRF) and the Center
for Environmental Health, Toxicology and Management of Chemicals (ETM) (to PK).
Times Cited: 0
ISSN: 1600-5368
DOI: 10.1107/S1600536810030795
29-char Source Abbrev.: ACTA CRYSTALLOGR E-STRUCT REP
ISO Source Abbrev.: Acta Crystallogr. Sect. E.-Struct Rep. Online
ISI Document Delivery No.: 645IS
Record 68 of 271
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Author(s): Tansuwan, S (Tansuwan, Srinuan); Chanaprat, P (Chanaprat, Porntana); Teerawatananond, T (Teerawatananond,
Thapong); Muangsin, N (Muangsin, Nongnuj); Pornpakakul, S (Pornpakakul, Surachai)
Title: (4S,5S,6S)-4-Hydroxy-3-methoxy-5-methyl-5,6-epoxycyclohex-2-en-1-one
Language: English
KeyWords Plus: ENDOPHYTIC FUNGUS
Abstract: The title compound, C8H10O4, was isolated from culture extracts of the endophytic fungus Xylaria sp. (PB-30). The
cyclohexenone ring exhibits a flattened boat conformation. In the crystal structure, molecules related by translation along the b axis
are linked into chains through O-H center dot center dot center dot O hydrogen bonds. Weak non-classical C-H center dot center
dot center dot O contacts are also observed in the structure.
Addresses: [Tansuwan, Srinuan; Chanaprat, Porntana; Teerawatananond, Thapong; Muangsin, Nongnuj; Pornpakakul, Surachai]
Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand
Reprint Address: Pornpakakul, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Department of Chemistry, Faculty of Science, Chulalongkorn University
Thailand research fund
MRG5280213
A1-B1 project
Thai Government
TKK2555
Financial support from the Department of Chemistry, Faculty of Science, Chulalongkorn University, the Rachadapiseksompoj
Endowment, Chulalongkorn University, the Thailand research fund (grant No. MRG5280213), the National Center of Excellence
for Petroleum, Petrochemicals and Advanced Materials, and the A1-B1 project, Faculty of Science, Chulalongkorn University,
is gratefully acknowledged. The Thai Government Stimulus Package 2 (TKK2555), under the Project for Establishment of a
Comprehensive Center for Innovative Food, Health Products and Agriculture, is acknowledged for support of the X-ray
Crystallographic analysis.
Times Cited: 0
ISSN: 1600-5368
DOI: 10.1107/S1600536810030850
ISI Document Delivery No.: 645IS
Record 69 of 271
Author(s): Phurat, C (Phurat, Chuttree); Teerawatananond, T (Teerawatananond, Thapong); Muangsin, N (Muangsin, Nongnuj)
Title: 2-[(4-Chlorobenzyl)iminomethyl]phenol
Language: English
KeyWords Plus: COMPLEXES; SCHIFF
Abstract: The title Schiff base compound, C14H12ClNO, was prepared from 4-chlorobenzylamine and salicylaldehyde. The
molecule is V-shaped: the dihedral angle between the aromatic rings is 67.51 (5)degrees. The rings are located on the opposite
side of the C=N bond, giving an E configuration. An intramolecular N-H center dot center dot center dot O hydrogen bond
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generates a S(6) ring. In the crystal structure, only weak non-classical C-H center dot center dot center dot O contacts are
observed.
Addresses: [Phurat, Chuttree; Teerawatananond, Thapong; Muangsin, Nongnuj] Chulalongkorn Univ, Res Ctr Bioorgan Chem,
Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Muangsin, N, Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Faculty of Science
A1B1
Thai Government Stimulus Package 2 TKK2555
This work was supported by the Research Funds from the Faculty of Science (A1B1), the Thailand Research Fund (TRF) to
NM, and the Thai Government Stimulus Package 2 (TKK2555) under the Project for Establishment of Comprehensive Center for
Innovative Food, Health Products and Agrigulture and Center for Petroleum Petrochemicals and Advanced Materials.
Times Cited: 0
ISSN: 1600-5368
DOI: 10.1107/S1600536810031508
ISI Document Delivery No.: 645WE
Record 70 of 271
Author(s): Phurat, C (Phurat, Chuttree); Teerawatananond, T (Teerawatananond, Thapong); Muangsin, N (Muangsin, Nongnuj)
Title: Salicylaldehyde-4-(dimethylamino)pyridine (1/1)
Language: English
Abstract: In the title compound, C7H10N2 center dot C7H6O2, the components are linked by an O-H center dot center dot center
dot N hydrogen bond. The mean planes of two molecules form a dihedral angle of 78.68 (5)degrees. The crystal packing exhibits
weak non-classical C-H center dot center dot center dot O contacts.
Addresses: [Phurat, Chuttree; Teerawatananond, Thapong; Muangsin, Nongnuj] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr
Bioorgan Chem, Bangkok 10330, Thailand
Reprint Address: Muangsin, N, Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Faculty of Science
A1B1
Thailand Research Fund RSA4680016
Thai Government
TKK2555
This work was supported by the Research Funds from the Faculty of Science (A1B1), the Thailand Research Fund
(RSA4680016) to NM, and the Thai Government Stimulus Package 2 (TKK2555) under the Project for Establishment of
Comprehensive Center for Innovative Food, Health Products and Agrigulture and Center for Petroleum Petrochemicals and
Advanced Materials.
Times Cited: 0
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ISSN: 1600-5368
DOI: 10.1107/S1600536810034185
Record 71 of 271
Author(s): Aree, T (Aree, Thammarat); Tip-pyang, S (Tip-pyang, Santi); Sowanthip, P (Sowanthip, Preecha)
Title: 6-Butyryl-5-hydroxy-4-phenylseselin
Language: English
KeyWords Plus: MAMMEA-SIAMENSIS; COUMARINS
Abstract: In the title coumarin compound (systematic name: 6-butyryl-5-hydroxy-8,8-dimethyl-4-phenyl-2H,8H-benzo[1,2-b;3,4b']dipyran-2-one), C24H22O5, also known as mammea A/AC cyclo D, the chromene and pyran rings are almost coplanar with a
maximum deviation from the mean plane of 0.295 (2) angstrom. The attached phenyl group is inclined at 53.49 (8)degrees with
respect to the chromene ring. The molecular structure is stabilized by an intramolecular O-H center dot center dot center dot O
hydrogen bond. In the crystal, molecules are linked into sheets parallel to (101) by intermolecular C-H center dot center dot center
dot O hydrogen bonds. Adjacent sheets are sustained by intermolecular C-H center dot center dot center dot pi and pi-pi
[centroid-centroid distance = 4.471 (2) angstrom] interactions.
Addresses: [Aree, Thammarat; Tip-pyang, Santi; Sowanthip, Preecha] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330,
Thailand
Reprint Address: Aree, T, Chulalongkorn Univ, Dept Chem, Fac Sci, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thai Government
TKK2555
National Research University
FW001A
This work was supported by the Thai Government Stimulus Package 2 (TKK2555), under the Project for the Establishment of a
Comprehensive Center for Innovative Food, Health Products and Agriculture (PERFECTA), the Center for Petroleum,
Petrochemicals and Advanced Materials, Chulalongkorn University (to TA), the National Research University Project of CHE
and the Ratchadaphiseksomphot Endowment Fund (FW001A) (to ST).
Times Cited: 0
ISSN: 1600-5368
DOI: 10.1107/S160053681003415X
Record 72 of 271
Author(s): Niyomploy, P (Niyomploy, Ploypat); Thunyakitpisal, P (Thunyakitpisal, Pasutha); Karnchanatat, A (Karnchanatat,
Aphichart); Sangvanich, P (Sangvanich, Polkit)
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Title: Cell proliferative effect of polyxyloses extracted from the rhizomes of wild turmeric, Curcuma aromatica
Source: PHARMACEUTICAL BIOLOGY, 48 (8): 932-937 AUG 2010
Language: English
Author Keywords: Curcuma aromatica; polysaccharide; cell proliferation
KeyWords Plus: ALOE-VERA; POLLEN POLYSACCHARIDE; ANTITUMOR-ACTIVITY; OIL; IDENTIFICATION;
FRACTION; MAKINO; GEL
Abstract: Hot water-soluble crude polysaccharides were extracted from the rhizomes of wild turmeric, Curcuma aromatica
Salisb. (Zingiberaceae), using dry grinding, boiling water extraction, and then ethanol precipitation. The crude polysaccharide
extract was then fractionated by DEAE-cellulose ion exchange column chromatography, and subsequently further purified by
Superdex G-200 gel filtration column chromatography, giving two relatively abundant polysaccharide fractions, called P11 and
P21, and a much less common fraction P22 obtained in insufficient amounts for further analysis. The two main polysaccharide
fractions were evaluated for monosaccharide composition by acid hydrolysis and high performance liquid chromatography
(HPLC), whilst the molecular weight and functional groups were determined by gel permeable chromatography (GPC) and FT-IR,
respectively. Fractions P11 and P21 were found to be polyxyloses with molecular weight-averages of 469,171 and 157,665 Da,
respectively. P11 (100 mu g/mL) could significantly induce human gingival fibroblast cells proliferation by 30%, while P21 (100
mu g/mL) could significantly inhibit gingival fibroblast cells proliferation by 92%. The in vitro human primary gingival fibroblast
cell proliferation in cell culture at a concentration of 100 mu g/mL.
Addresses: [Sangvanich, Polkit] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand;
[Niyomploy, Ploypat] Chulalongkorn Univ, Fac Sci, Biotechnol Program, Bangkok 10330, Thailand; [Thunyakitpisal, Pasutha]
Chulalongkorn Univ, Fac Dent, Dept Anat Ctr, Bangkok 10330, Thailand; [Karnchanatat, Aphichart] Chulalongkorn Univ, Inst
Biotechnol & Genet Engn, Bangkok 10330, Thailand
Reprint Address: Sangvanich, P, Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
This work was supported by Chulalongkorn University graduate scholarship.
Times Cited: 0
Publisher: TAYLOR & FRANCIS INC
Publisher Address: 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
ISSN: 1388-0209
DOI: 10.3109/13880200903305518
29-char Source Abbrev.: PHARM BIOL
ISO Source Abbrev.: Pharm. Biol.
Subject Category: Plant Sciences; Medical Laboratory Technology; Pharmacology & Pharmacy
ISI Document Delivery No.: 643OA
Record 73 of 271
Author(s): Sarigaputi, C (Sarigaputi, Chanin); Nuanyai, T (Nuanyai, Thanesuan); Teerawatananond, T (Teerawatananond,
Thapong); Pengpreecha, S (Pengpreecha, Somchai); Muangsin, N (Muangsin, Nongnuj); Pudhom, K (Pudhom, Khanitha)
Title: Xylorumphiins A-D, Mexicanolide Limonoids from the Seed Kernels of Xylocarpus rumphii
Source: JOURNAL OF NATURAL PRODUCTS, 73 (8): 1456-1459 AUG 2010
Language: English
KeyWords Plus: CHINESE MANGROVE; GRANATUM; TETRANORTRITERPENOIDS; MELIACEAE
Abstract: Four new mexicanolide limonoids, named xylorumphiins A-D (1-4), were isolated from the seed kernels of Xylocarpus
rumphii, together with three known limonoids. Their structures and configurations were established on the basis of spectroscopic
data.
Addresses: [Nuanyai, Thanesuan; Teerawatananond, Thapong; Pengpreecha, Somchai; Muangsin, Nongnuj; Pudhom, Khanitha]
Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Sarigaputi, Chanin] Chulalongkorn
Univ, Fac Sci, Program Biotechnol, Bangkok 10330, Thailand
23/11/2553 18:36
Reprint Address: Pudhom, K, Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Anniversary of Chulalongkorn University Fund
Ratchadaphisek Somphot Endowment Fund
AG001B
Thai Government Stimulus Package
TKK2555
This work was supported by The 90th Anniversary of Chulalongkorn University Fund (Ratchadaphisek Somphot Endowment
Fund), the Ratchadaphisek Somphot Endowment Fund (AG001B), and the Thai Government Stimulus Package (TKK2555) under
the Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture. We also thank the
Center for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn University, for partial support.
Times Cited: 0
ISSN: 0163-3864
DOI: 10.1021/np100423w
29-char Source Abbrev.: J NAT PROD
ISO Source Abbrev.: J. Nat. Prod.
Subject Category: Plant Sciences; Chemistry, Medicinal; Pharmacology & Pharmacy
ISI Document Delivery No.: 642CO
Record 74 of 271
Author(s): Chantangsi, C (Chantangsi, Chitchai); Leander, BS (Leander, Brian S.)
Title: An SSU rDNA barcoding approach to the diversity of marine interstitial cercozoans, including descriptions of four novel
genera and nine novel species
Source: INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 60: 1962-1977 Part 8
AUG 2010
Language: English
KeyWords Plus: SUBUNIT RIBOSOMAL-RNA; PHYLOGENETIC POSITION; FLAGELLATES PROTISTA; INCERTAE
SEDIS; FINE-STRUCTURE; DNA; SEDIMENTS; AUSTRALIA; EVOLUTIONARY; EUKARYOTES
Abstract: Environmental DNA surveys have revealed a great deal of hidden diversity within the Cercozoa. An investigation into
the biodiversity of heterotrophic flagellates in marine benthic habitats of British Columbia, Canada, demonstrated the presence of
several undescribed taxa with morphological features that resemble the cercozoan genera Cryothecomonas and Protaspis. Nine
novel species of marine interstitial cercozoans are described that are distributed into five genera, four of which are new.
Phylogenetic analyses of small subunit rDNA sequences derived from two uncultured isolates of Protaspis obliqua and nine novel
cercozoan species (within four novel genera) provided organismal anchors that helped establish the cellular identities of several
different environmental sequence clades. These data, however, also showed that the rarity of distinctive morphological features in
cryomonads, and other groups of cercozoans, makes the identification and systematics of the group very difficult. Therefore, a
DNA barcoding approach was applied as a diagnostic tool for species delimitation that used a 618 bp region at the 5' end of the
SSU rDNA sequence. Nucleotide sequence analysis of this region showed high intergeneric sequence divergences of about 7%
and very low intraspecific sequence divergences of 0-0.5%; phylogenetic analyses inferred from this barcoding region showed
very similar tree topologies to those inferred from the full-length sequence of the gene. Overall, this study indicated that the 618
bp barcoding region of SSU rDNA sequences is a useful molecular signature for understanding the biodiversity and
interrelationships of marine benthic cercozoans.
Addresses: Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4, Canada; Univ British Columbia, Dept Bot, Vancouver,
BC V6T 1Z4, Canada
Reprint Address: Chantangsi, C, Chulalongkorn Univ, Dept Biol, Fac Sci, Phayathai Rd, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
National Science and Engineering Research Council of Canada (NSERC) 283091-04
Canadian Institute
We thank K. Tangthongchaiwiriya for illustrating all nine novel cercozoans (Fig. 3). C. C. was supported by a national
scholarship awarded by the Cooperative Research Network (CRN), Government of Thailand. This work was supported by
grants to B. S. L. from the National Science and Engineering Research Council of Canada (NSERC 283091-04) and the
Canadian Institute for Advanced Research, Program in Integrated Microbial Biodiversity.
Times Cited: 0
Publisher: SOC GENERAL MICROBIOLOGY
Publisher Address: MARLBOROUGH HOUSE, BASINGSTOKE RD, SPENCERS WOODS, READING RG7 1AG, BERKS,
ENGLAND
ISSN: 1466-5026
DOI: 10.1099/ijs.0.013888-0
29-char Source Abbrev.: INT J SYST EVOL MICROBIOL
ISO Source Abbrev.: Int. J. Syst. Evol. Microbiol.
ISI Document Delivery No.: 642AS
Record 75 of 271
Author(s): Mahawanich, T (Mahawanich, Thanachan); Lekhavichitr, J (Lekhavichitr, Jirachai); Duangmal, K (Duangmal,
Kiattisak)
Title: Gel properties of red tilapia surimi: effects of setting condition, fish freshness and frozen storage
Source: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 45 (9): 1777-1786 SEP 2010
Language: English
Author Keywords: Protein gel; red tilapia; salt extractable protein; surimi; tilapia
KeyWords Plus: WHITING MERLUCCIUS-PRODUCTUS; FORMING PROPERTIES; ICE; DEGRADATION; MYOSIN;
MUSCLE; TRANSGLUTAMINASE; PROTEINS; NITROGEN; GELATION
Abstract: P>This study aimed to determine effects of setting condition, fish freshness and storage time of frozen surimi on
properties of red tilapia surimi gel. To investigate the effect of setting condition, a combination of eight setting temperatures
(35-70 degrees C) and four setting times (30-120 min) was used. Maximum breaking force, deformation and gel strength were
obtained after the gel had been set at 40 degrees C for 90 or 120 min. Setting at 65 degrees C resulted in the lowest obtained gel
strength, because of proteolytic degradation of myosin heavy chain. Increasing storage time of raw fish material in ice caused a
significant decrease in gel strength of the resultant surimi gel (P < 0.05). Gels produced from surimi kept in frozen storage for up
to 9 months also exhibited reduced gel strength, with a concomitant increase in the expressible drip, with increasing storage time
(P < 0.05).
Addresses: [Mahawanich, Thanachan; Lekhavichitr, Jirachai; Duangmal, Kiattisak] Chulalongkorn Univ, Dept Food Technol, Fac
Sci, Bangkok 10330, Thailand
Reprint Address: Mahawanich, T, Chulalongkorn Univ, Dept Food Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Development for Agro-Industry and Food Industry Project
Bureau of the Budget of the Prime Minister's Office, Thailand
Financial support for this work from the 'Development for Agro-Industry and Food Industry Project' research project, the Bureau
of the Budget of the Prime Minister's Office, Thailand, is acknowledged with thanks. The authors also thank Dr. Robert Butcher
for English editing.
Times Cited: 0
23/11/2553 18:36
ISSN: 0950-5423
DOI: 10.1111/j.1365-2621.2010.02317.x
29-char Source Abbrev.: INT J FOOD SCI TECHNOL
ISO Source Abbrev.: Int. J. Food Sci. Technol.
ISI Document Delivery No.: 643PY
Record 76 of 271
Author(s): Donpudsa, S (Donpudsa, Suchao); Ponprateep, S (Ponprateep, Sirikwan); Prapavorarat, A (Prapavorarat, Adisak);
Visetnan, S (Visetnan, Suwattana); Tassanakajon, A (Tassanakajon, Anchalee); Rimphanitchayakit, V (Rimphanitchayakit, Vichien)
Title: A Kazal-type serine proteinase inhibitor SPIPm2 from the black tiger shrimp Penaeus monodon is involved in antiviral
responses
Source: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY, 34 (10): 1101-1108 OCT 2010
Language: English
Author Keywords: Penaeus monodon; Kazal-type serine proteinase inhibitor; White spot syndrome virus; Antiviral response
KeyWords Plus: MOLECULAR-CLONING; EXPRESSION; GENE; DOMAIN; IDENTIFICATION; INFECTION; IMMUNITY;
DATABASE; SILK
Abstract: A five-domain Kazal-type serine proteinase inhibitor, SPIPm2, from Penaeus monodon has recently been implicated in
antiviral responses for it is up-regulated upon viral infection and needs further studies. The SPIPm2 genomic gene was composed
of seven exons and six introns. The genomic DNA segments coding for each Kazal domain were separated by introns of variable
lengths supporting the hypothesis of gene duplication in the Kazal-type gene family. RT-PCR and Western blot analysis revealed
that the SPIPm2 transcript and its five-domain protein product were expressed mainly in the hemocytes and less in gill, heart and
antenna! gland. Upon white spot syndrome virus (WSSV) infection, the SPIPm2 was only detected in the hemocytes and plasma.
Immunocytochemical study of P. monodon hemocytes showed that the percentage of SPIPm2-producing hemocytes was reduced by
about half after WSSV infection. Quantitative RT-PCR revealed further that the SPIPm2 was up-regulated early in the hemocytes
of WSSV-infected shrimp and gradually reduced as the infection progressed. Injection of the recombinant SPIPm2 (rSPIPm2)
prior to WSSV injection resulted in a significant inhibition of WSSV replication. The rSPIPm2 injection also prolonged the
mortality rate of WSSV-infected shrimp. Therefore, the SPIPm2 was involved in the innate immunity against WSSV infection in
shrimp. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Donpudsa, Suchao; Ponprateep, Sirikwan; Prapavorarat, Adisak; Visetnan, Suwattana; Tassanakajon, Anchalee;
Rimphanitchayakit, Vichien] Chulalongkorn Univ, Ctr Excellence Mol Biol & Genom Shrimp, Dept Biochem, Fac Sci, Bangkok
10330, Thailand
Reprint Address: Rimphanitchayakit, V, Chulalongkorn Univ, Ctr Excellence Mol Biol & Genom Shrimp, Dept Biochem, Fac
Sci, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thai Government
TKK2555
This work was supported by research grants from (i) the Commission on Higher Education, (ii) the Thailand National Center for
Genetic Engineering and Biotechnology (BIOTEC) and (iii) the Thai Government Stimulus Package 2 (TKK2555) under the
Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture. The Ph.D. student
fellowships to Mr. Suchao Donpudsa and Miss Sirikwan Ponprateep for the Strategic Scholarships Fellowships Frontier
Research Networks from the Commission on Higher Education and to Mr. Adisak Prapavorarat from the Royal Golden Jubilee
Ph.D. Program, Thailand Research Fund are greatly appreciated. We also thank Chulalongkorn University for the support to the
Center of Excellence for Molecular Biology and Genomics of Shrimp under the Ratchadaphisek Somphot Endowment.
Times Cited: 0
ISSN: 0145-305X
DOI: 10.1016/j.dci.2010.06.001
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29-char Source Abbrev.: DEVELOP COMP IMMUNOL
ISO Source Abbrev.: Dev. Comp. Immunol.
Subject Category: Immunology; Zoology
ISI Document Delivery No.: 642AG
Record 77 of 271
Author(s): Dungchai, W (Dungchai, Wijitar); Chailapakul, O (Chailapakul, Orawon); Henry, CS (Henry, Charles S.)
Title: Use of multiple colorimetric indicators for paper-based microfluidic devices
Source: ANALYTICA CHIMICA ACTA, 674 (2): 227-233 AUG 3 2010
Language: English
Author Keywords: Paper-based microfluidics devices; Colorimetric detection; Microfluidic paper analytical devices
KeyWords Plus: HORSERADISH-PEROXIDASE; HYDROGEN-PEROXIDE; O-DIANISIDINE; URIC-ACID; OXIDATION;
GLUCOSE; ASSAY; STABILIZATION; TECHNOLOGIES; STABILITY
Abstract: We report here the use of multiple indicators for a single analyte for paper-based microfluidic devices (mu PAD) in an
effort to improve the ability to visually discriminate between analyte concentrations. In existing mu PADs, a single dye system is
used for the measurement of a single analyte. In our approach, devices are designed to simultaneously quantify analytes using
multiple indicators for each analyte improving the accuracy of the assay. The use of multiple indicators for a single analyte allows
for different indicator colors to be generated at different analyte concentration ranges as well as increasing the ability to better
visually discriminate colors. The principle of our devices is based on the oxidation of indicators by hydrogen peroxide produced
by oxidase enzymes specific for each analyte. Each indicator reacts at different peroxide concentrations and therefore analyte
concentrations, giving an extended range of operation. To demonstrate the utility of our approach, the mixture of 4-aminoantipyrine
and 3,5-dichloro-2-hydroxy-benzenesulfonic acid, o-dianisidine dihydrochloride, potassium iodide, acid black, and acid yellow
were chosen as the indicators for simultaneous semi-quantitative measurement of glucose, lactate, and uric acid on a 1,,PAD. Our
approach was successfully applied to quantify glucose (0.5-20 mM), lactate (1-25 mM), and uric acid (0.1-7 mM) in clinically
relevant ranges. The determination of glucose, lactate, and uric acid in control serum and urine samples was also performed to
demonstrate the applicability of this device for biological sample analysis. Finally results for the multi-indicator and single
indicator system were compared using untrained readers to demonstrate the improvements in accuracy achieved with the new
system. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Dungchai, Wijitar; Chailapakul, Orawon] Chulalongkorn Univ, Dept Chem, Electrochem Res Grp, Fac Sci, Bangkok
10330, Thailand; [Henry, Charles S.] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA; [Chailapakul, Orawon]
Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Chailapakul, O, Chulalongkorn Univ, Dept Chem, Electrochem Res Grp, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Research Fund through the Royal Golden Jubilee Ph.D. Program
PHD/0039/2548
(PERFECTA)
US-Thailand Education Foundation
WD gratefully acknowledges the Thailand Research Fund through the Royal Golden Jubilee Ph.D. Program (Grant No.
PHD/0039/2548). OC also would like to thank the Thailand Research Fund (Basic Research Grant) and the Thai Government
Stimulus Package 2 (TK2555), under the Project for Establishment of Comprehensive Center for Innovative Food, Health
Products and Agriculture (PERFECTA). CSH thanks support through the Fulbright Scholar program through the US-Thailand
Education Foundation.
Times Cited: 0
ISSN: 0003-2670
DOI: 10.1016/j.aca.2010.06.019
29-char Source Abbrev.: ANAL CHIM ACTA
ISO Source Abbrev.: Anal. Chim. Acta
23/11/2553 18:36
Subject Category: Chemistry, Analytical
ISI Document Delivery No.: 643LF
Record 78 of 271
Author(s): Sutcharit, C (Sutcharit, Chirasak); Naggs, F (Naggs, Fred); Wade, CM (Wade, Christopher M.); Fontanilla, I
(Fontanilla, Ian); Panha, S (Panha, Somsak)
Title: The new family Diapheridae, a new species of Diaphera Albers from Thailand, and the position of the Diapheridae within
a molecular phylogeny of the Streptaxoidea (Pulmonata: Stylommatophora)
Source: ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 160 (1): 1-16 SEP 2010
Language: English
Author Keywords: Achatinoidea; carnivorous snail; land snails; molecular phylogeny; rRNA; taxonomy
KeyWords Plus: GASTROPODA PULMONATA; LAND SNAILS; MOLLUSCA; STREPTAXIDAE; GENUS
Abstract: The Streptaxoidea are an ancient and species diverse group that is poorly understood. Examination of the reproductive
anatomy of Diaphera showed it to be notably distinct from that of most other streptaxid genera but to exhibit similarities with the
reproductive anatomy of Sinoennea (Enneinae), Careoradula (Strepaxinae), Discarternon (Strepaxinae), Aug ustula (Strepaxinae),
and a species of Imperturbatia (Gibhinae), Our molecular phylogenetic analysis placed the two genera with highspired shells,
Sinoennea and Diaphera, in an isolated position as a sister group to the Streptaxidae sensu stricto. This basal divergence within
the Streptaxoidea provides support to the proposed recognition of a new family, the Diapheridae. None of the genera possessing
lowspired shells, Careoradula, Discarternon, Augustula, and Imperturbatia, were available for inclusion in the molecular analysis
and we therefore provisionally restrict the Diapheridae to Diaphera and Sinoennea, However, based on their reproductive
anatomy Careoradula, Discartemon, Augustula and a species of linperturbatia may cluster with the Diapheridae when included in
a molecular analysis.
(C) 2010 The Linnean Society of London, Zoological Journal of the Linnean Society, 2010, 160, 1-16.
Addresses: [Sutcharit, Chirasak; Panha, Somsak] Chulalongkorn Univ, Anim Systemat Res Unit, Dept Biol, Fac Sci, Bangkok
10330, Thailand; [Naggs, Fred] Nat Hist Museum, Dept Zool, London SW7 5BD, England; [Wade, Christopher M.; Fontanilla,
Ian] Univ Nottingham, Inst Genet, Queens Med Ctr, Nottingham NG7 2UH, England
Reprint Address: Panha, S, Chulalongkorn Univ, Anim Systemat Res Unit, Dept Biol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Commission on Higher Education (CHE-RG Limestone Biodiversity)
BRT Program
BRT 248005
Leverhulme Trust
F/00114U
Darwin Initiative
15/018
TRF-MRG4980201
We are indebted to all of the collectors listed in Table 1, and to R. G. Moolenbeek (ZMA, Amsterdam), R. Janssen (SMF,
Frankfurt), and P. Bouchet (MNHN, Paris) for kindly permitting C. S. and S. P. to study the type specimens and relevant
reference material. We thank C. Hudelot (Institute of Genetics, University of Nottingham) for assistance with the molecular
work, J. Gerlach (Nature Protection Trust of Seychelles) for correspondence relating to his anatomical work on Seychelles
streptaxids, and B. Rowson (Biodiversity and Systematic Biology, National Museum of Wales) for informative discussions on
streptaxid relationships and helpful comments on an earlier draft of this paper. We are also grateful to T. Asami, P. Tongkerd, A.
Wiwegweaw, S. Natsupak-pong, and N. Pattaramonon for providing us with literature. We extend our gratitude to D. Raheem
and to E. Platts for critically reviewing the manuscript and thank G. M. Barker and an anonymous referee for their constructive
comments on an earlier version of this manuscript. This project was funded by a grant for the TRF-MRG4980201, and the
Development of New Faculty Staff, Chulalongkorn University, awarded to C. S.; a grant from the Thailand Commission on
Higher Education (CHE-RG Limestone Biodiversity) and BRT Program (BRT 248005) to S. P., a grant awarded to C. M. W.
from the Leverhulme Trust (F/00114U) and the Darwin Initiative Project: Developing land snail expertise in South and
South-East Asia grant. no. 15/018).
Times Cited: 0
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ISSN: 0024-4082
DOI: 10.1111/j.1096-3642.2009.00598.x
29-char Source Abbrev.: ZOOL J LINN SOC
ISO Source Abbrev.: Zool. J. Linn. Soc.
ISI Document Delivery No.: 640RS
Record 79 of 271
Author(s): Nunthaboot, N (Nunthaboot, Nadtanet); Rungrotmongkol, T (Rungrotmongkol, Thanyada); Malaisree, M (Malaisree,
Maturos); Kaiyawet, N (Kaiyawet, Nopporn); Decha, P (Decha, Panita); Sompornpisut, P (Sompornpisut, Pornthep); Poovorawan,
Y (Poovorawan, Yong); Hannongbua, S (Hannongbua, Supot)
Title: Evolution of Human Receptor Binding Affinity of H1N1 Hemagglutinins from 1918 to 2009 Pandemic Influenza A Virus
Source: JOURNAL OF CHEMICAL INFORMATION AND MODELING, 50 (8): 1410-1417 AUG 2010
Language: English
KeyWords Plus: MOLECULAR-DYNAMICS; GLYCAN TOPOLOGY; PK(A) VALUES; FORCE-FIELD; SWINE;
SPECIFICITY; CELLS; RATIONALIZATION; TRANSMISSION; PATHOGENESIS
Abstract: The recent outbreak of the novel 2009 H1N1 influenza in humans has focused global attention on this virus, which
could potentially have introduced a more dangerous pandemic of influenza flu. In the initial step of the viral attachment,
hemagglutinin (HA), a viral glycoprotein surface, is responsible for the binding to the human S1A alpha 2,6-linked
sialopentasaccharide host cell receptor (hHAR). Dynamical and structural properties, based on molecular dynamics simulations
of the four different HAs of Spanish 1918 (H1-1918), swine 1930 (H1-1930), seasonal 2005 (H1-2005), and a novel 2009
(H1-2009) HI NI bound to the hHAR were compared. In all four HA-hHAR complexes, major interactions with the receptor
binding were gained from HA residue Y95 and the conserved HA residues of the 130-loop, 190-helix, and 220-loop. However,
introduction of the charged HA residues K145 and E227 in the 2009 HA binding pocket was found to increase the HA-hHAR
binding efficiency in comparison to the three previously recognized H1N1 strains. Changing of the noncharged HA G225 residue
to a negatively charged D225 provides a larger number of hydrogen-bonding interactions. The increase in hydrophilicity of the
receptor binding region is apparently an evolution of the current pandemic flu from the 1918 Spanish, 1930 swine, and 2005
seasonal strains. Detailed analysis could help the understanding of how different HAs effectively attach and bind with the hHAR.
Addresses: [Rungrotmongkol, Thanyada; Malaisree, Maturos; Kaiyawet, Nopporn; Sompornpisut, Pornthep; Hannongbua, Supot]
Chulalongkorn Univ, Fac Sci, Dept Chem, Computat Chem Unit Cell, Bangkok 10330, Thailand; [Nunthaboot, Nadtanet]
Mahasarakham Univ, Fac Sci, Dept Chem, Maha Sarakham 44150, Thailand; [Rungrotmongkol, Thanyada] Chulalongkorn Univ,
Ctr Innovat Nanotechnol, Bangkok 10330, Thailand; [Poovorawan, Yong] Chulalongkorn Univ, Fac Med, Ctr Excellence Clin
Virol, Bangkok 10330, Thailand; [Decha, Panita] Thaksin Univ, Fac Sci, Dept Chem, Computat Chem Res Unit, Phatthalung
93110, Thailand
Reprint Address: Hannongbua, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Computat Chem Unit Cell, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
MRG5180298
TRG5280035
Commission Higher Education (CHE)
Thai Government
TKK2555
Emerging Diseases and Bio-Warefare project
Center of Excellence in Clinical Virology, Chulalongkorn University
This work was financially supported by the Thailand Research Fund (TRF), the Commission Higher Education (CHE), and the
Thai Government Stimulus Package 2 (TKK2555), under the Project for Establishment of Comprehensive Center for Innovative
Food, Health Products and Agriculture. N.N. (grant No. MRG5180298) and T.R. (grant No. TRG5280035) acknowledge the
TRF grant for the new research. P.S. gratefully acknowledges the support from the Emerging Diseases and Bio-Warefare
project, the Center of Excellence in Clinical Virology, Chulalongkorn University.
Times Cited: 0
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ISSN: 1549-9596
DOI: 10.1021/ci100038g
29-char Source Abbrev.: J CHEM INF MODEL
ISO Source Abbrev.: J. Chem Inf. Model.
Subject Category: Chemistry, Multidisciplinary; Computer Science, Information Systems; Computer Science, Interdisciplinary
Applications
ISI Document Delivery No.: 640BN
Record 80 of 271
Author(s): Preechaphol, R (Preechaphol, Rachanimuk); Klinbunga, S (Klinbunga, Sirawut); Yamano, K (Yamano, Keisuke);
Menasveta, P (Menasveta, Piamsak)
Title: Molecular cloning and expression of progestin membrane receptor component 1 (Pgrnrc1) of the giant tiger shrimp Penaeus
monodon
Source: GENERAL AND COMPARATIVE ENDOCRINOLOGY, 168 (3): 440-449 SEP 15 2010
Language: English
Author Keywords: RACE-PCR; Real-time PCR; Ovarian development; Shrimp; Pgmrc1
KeyWords Plus: PRAWN MARSUPENAEUS-JAPONICUS; KURUMA PRAWN; OVARIAN MATURATION; MEIOTIC
MATURATION; OOCYTE DEVELOPMENT; IN-VITRO; IDENTIFICATION; BINDING; PROTEIN; VITELLOGENIN
Abstract: Knowledge on molecular mechanisms of steroid hormonal induction on oocyte development may lead to the possible
ways to effectively induce ovarian maturation in shrimp. In this study, progestin membrane receptor component 1 (Pgmrc1) of the
giant tiger shrimp (Penaeus monodon) initially identified by EST analysis was further characterized. The full-length cDNA of
Pgmrcl was 2015 bp in length containing an ORF of 573 bp corresponding to a polypeptide of 190 amino acids. Northern blot
analysis revealed a single form of Pgmrc1 in ovaries of P. monodon. Quantitative real-time PCR indicated that the expression
level of Pgmrc1 mRNA in ovaries of both intact and eyestalk-ablated broodstock was greater than that of juveniles (P < 0.05).
Pgmrcl was up-regulated in mature (stage IV) ovaries of intact broodstock (P < 0.05). Unilateral eyestalk ablation resulted in an
earlier up-regulation of Pgmrc1 since the vitellogenic (II) ovarian stage. Moreover, the expression level of Pgmrc1 in
vitellogenic, early cortical rod and mature (II-1V) ovaries of eyestalk-ablated broodstock was greater than that of the same
ovarian stages in intact broodstock (P< 0.05). Pgmrcl mRNA was clearly localized in the cytoplasm of follicular cells,
previtellogenic and early vitellogenic oocytes. lmmunohistochemistry revealed the positive signals of the Pgmrc1 protein in the
follicular layers and cell membrane of follicular cells and various stages of oocytes. Taken the information together, Pgmrcl gene
products seem to play the important role on ovarian development and may be used as the bioindicator for monitoring progression
of oocyte maturation of P. monodon. (C) 2010 Elsevier Inc. All rights reserved.
Addresses: [Klinbunga, Sirawut] NSTDA, Aquat Mol Genet & Biotechnol Lab, Natl Ctr Genet Engn & Biotechnol BIOTEC,
Klongluang 12120, Pathumthani, Thailand; [Preechaphol, Rachanimuk] Chulalongkorn Univ, Program Biotechnol, Fac Sci,
Bangkok 10330, Thailand; [Klinbunga, Sirawut; Menasveta, Piamsak] Chulalongkorn Univ, Ctr Excellence Marine Biotechnol,
Fac Sci, Bangkok 10330, Thailand; [Yamano, Keisuke] Natl Res Inst Aquaculture, Fisheries Res Agcy, Tsu, Mie 5160193, Japan;
[Menasveta, Piamsak] Chulalongkorn Univ, Dept Marine Sci, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Klinbunga, S, NSTDA, Aquat Mol Genet & Biotechnol Lab, Natl Ctr Genet Engn & Biotechnol BIOTEC, 113
Paholyothin Rd,Klong 1, Klongluang 12120, Pathumthani, Thailand.
Times Cited: 1
ISSN: 0016-6480
DOI: 10.1016/j.ygcen.2010.06.002
29-char Source Abbrev.: GEN COMP ENDOCRINOL
ISO Source Abbrev.: Gen. Comp. Endocrinol.
Subject Category: Endocrinology & Metabolism
ISI Document Delivery No.: 641LF
Record 81 of 271
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Author(s): Malaivijitnond, S (Malaivijitnond, Suchinda); Tungmunnithum, D (Tungmunnithum, Duangjai); Gittarasanee, S
(Gittarasanee, Sarocha); Kawin, K (Kawin, Kanya); Limjunyawong, N (Limjunyawong, Nathachit)
Title: Puerarin exhibits weak estrogenic activity in female rats
Source: FITOTERAPIA, 81 (6): 569-576 SEP 2010
Language: English
Author Keywords: Estradiol valerate; Pueraria mirifica; Puerarin; Uterus; Uterine gland; Vagina
KeyWords Plus: PHYTOESTROGEN-RICH-HERB; MENOPAUSAL CYNOMOLGUS MONKEYS; MAJOR ISOFLAVONOID
CONTENTS; VAGINAL CORNIFICATION; LIQUID-CHROMATOGRAPHY; URINARY GONADOTROPIN; UTEROTROPHIC
ASSAYS; INTESTINAL BACTERIA; MIRIFICA HERB; BONE LOSS
Abstract: A weak estrogenicity of puerarin on reproductive organs was addressed in female rats. In short-term treatment,
immature ovariectomized rats were injected with 0.7 mg/kg BW/day of puerarin, for 14 days. Puerarin did not increase uterus
weights, endometrium and myometrium areas, and the percent of cornified cells (%Co), but it increased the number of uterine
glands. In long-term treatment, mature rats were injected with 7.0 mg/kg BW/day of puerarin for 140 days. Puerarin did not
increase uterus weights, endometrium and myometrium areas, and the number of uterine glands, but a significant increase in the
%Co was observed from day 98 onwards. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Malaivijitnond, Suchinda; Tungmunnithum, Duangjai; Gittarasanee, Sarocha; Limjunyawong, Nathachit]
Chulalongkorn Univ, Fac Sci, Dept Biol, Primate Res Unit, Bangkok 10330, Thailand
Reprint Address: Malaivijitnond, S, Chulalongkorn Univ, Fac Sci, Dept Biol, Primate Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Faculty of Science and Primate Research Unit, Chulalongkorn University, Thailand
The authors thank Dr. Robert Butcher, Faculty of Science, Chulalongkorn University, and Professor Dr. Yuzuru Hamada, Primate
Research Institute of Kyoto University, Japan, for proofreading of the manuscript. This study was supported in part by Faculty of
Science and Primate Research Unit, Chulalongkorn University, Thailand.
Times Cited: 0
ISSN: 0367-326X
DOI: 10.1016/j.fitote.2010.01.019
ISI Document Delivery No.: 640SX
Record 82 of 271
Author(s): Nigapruke, K (Nigapruke, Khatayut); Puwanich, P (Puwanich, Patana); Phaisangittisakul, N (Phaisangittisakul,
Nakorn); Youngdee, W (Youngdee, Wiwat)
Title: Monte Carlo Simulation of Average Glandular Dose and an Investigation of Influencing Factors
Source: JOURNAL OF RADIATION RESEARCH, 51 (4): 441-448 JUL 2010
Language: English
Author Keywords: Average glandular dose; Monte Carlo simulation; Mammography; Glandular distribution
KeyWords Plus: X-RAY-SPECTRA; CONVERSION FACTORS; MAMMOGRAPHY; BREAST; COEFFICIENTS;
MOLYBDENUM; MODELS
Abstract: This study aims to determine the average absorbed dose of radiation in glandular tissue during mammography and to
investigate factors that influence the average glandular dose, particularly the local distribution of glandular tissue within the breast
and breast skin thickness. An EGSnrc Monte Carlo code and associated codes were employed in the simulation. The breast voxel
models used consist of a homogeneous and heterogeneous mixture of adipose and glandular tissues embedded in a skin layer. The
percent depth dose and normalized average glandular dose coefficients for spectra of Mo-Mo target-filter combination were
calculated. The results showed good agreement with the experimental results (percent depth close) and literature values
23/11/2553 18:36
(normalized average glandular dose coefficients) when the breast model is homogeneous. Additional investigation of a
heterogeneous breast phantom indicates that the local distribution of glandular tissue within the breast, as well as breast skin
thickness, could affect the average glandular dose considerably more than that of a typical homogeneous breast model. This
problem may be a concern in most practical situations of breast dosimetry when assessing the radiation risk to patients.
Addresses: [Nigapruke, Khatayut; Puwanich, Patana; Youngdee, Wiwat] Khon Kaen Univ, Dept Phys, Fac Sci, Khon Kaen,
Thailand; [Phaisangittisakul, Nakorn] Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330, Thailand; [Phaisangittisakul,
Nakorn] CHE, ThEP Ctr, Bangkok, Thailand
Reprint Address: Nigapruke, K, Khon Kaen Univ, Dept Phys, Fac Sci, Khon Kaen, Thailand.
Funding Agency
Grant Number
Thailand Center of Excellence in Physics
We thank the authors of the EGSnrc Monte Carlo code for the free use of their code, without which this work would not have
been possible. One of the authors, N. Phaisangittisakul, would like to acknowledge the partial support from the Thailand Center
of Excellence in Physics.
Times Cited: 0
Publisher: JAPAN RADIATION RESEARCH SOC
Publisher Address: C/O NAT INST RADIOLOGICAL SCI 9-1 ANAGAWA-4-CHOME INAGE-KU, CHIBA, 263, JAPAN
ISSN: 0449-3060
DOI: 10.1269/jrr.10008
29-char Source Abbrev.: J RADIAT RES
ISO Source Abbrev.: J. Radiat. Res.
Subject Category: Biology; Radiology, Nuclear Medicine & Medical Imaging
ISI Document Delivery No.: 637MX
Record 83 of 271
Author(s): Vchirawongkwin, V (Vchirawongkwin, Viwat); Sato, H (Sato, Hirofumi); Sakaki, S (Sakaki, Shigeyoshi)
Title: RISM-SCF-SEDD Study on the Symmetry Breaking of Carbonate and Nitrate Anions in Aqueous Solution
Source: JOURNAL OF PHYSICAL CHEMISTRY B, 114 (32): 10513-10519 AUG 19 2010
Language: English
KeyWords Plus: MOLECULAR-DYNAMICS SIMULATIONS; INTERACTION SITE MODEL; DENSITY-FUNCTIONAL
THEORY; SELF-CONSISTENT-FIELD; ELECTRONIC-STRUCTURE; NEUTRON-DIFFRACTION; MAGNESIUM-NITRATE;
NUCLEIC-ACIDS; FORCE-FIELD; WATER
Abstract: The planarity of carbonate and nitrate anions was investigated in the gas and solution phases by means of the reference
interaction site model self-consistent field spatial electron density distribution (RISM-SCF-SEDD) method. The computed
optimized geometries and solvation structures are compared with the diffraction data. In the solution phase, the symmetry of
carbonate anion is changed from D-3h, to C-3v, whereas the planarity of nitrate anion is still retained. These are fully consistent
with experimental knowledge. The classical electrostatic model was also utilized to elucidate the mechanism of the symmetry
breaking. It should be emphasized that the symmetry breaking occurs not only by a specific solvent molecule attaching to the ion
but by an overall electrostatic interaction between the infinite number of solvent molecules and the ion.
Addresses: [Sato, Hirofumi; Sakaki, Shigeyoshi] Kyoto Univ, Dept Mol Engn, Kyoto 6158510, Japan; [Sakaki, Shigeyoshi] Kyoto
Univ, Fukui Inst Fundamental Chem, Kyoto 6158510, Japan; [Vchirawongkwin, Viwat] Chulalongkorn Univ, Dept Chem, Fac Sci,
Reprint Address: Sato, H, Kyoto Univ, Dept Mol Engn, Kyoto 6158510, Japan.
Funding Agency
Grant Number
Thailand Commission on Higher Education MRG5280241
452-20031014
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2006-21107511
20550013
The authors express their thanks to Professor Keiji Morokuma for many helpful discussions about this work. We are also
grateful to the JENESYS (Japan-East Asia Network of Exchange for Students and Youths) Programme. The Thailand Research
Fund and Thailand Commission on Higher Education (MRG5280241, fellowships for V.V.) are gratefully acknowledged. The
work is also financially supported in part by the Grant-in-Aid for Scientific Research on Priority Areas "Ionic Liquids"
(452-20031014) and "Molecular Science of Fluctuations" (2006-21107511) as well as by the Grant-in-Aid for Scientific
Research (C) (20550013).
Times Cited: 0
ISSN: 1520-6106
DOI: 10.1021/jp101700d
29-char Source Abbrev.: J PHYS CHEM B
ISO Source Abbrev.: J. Phys. Chem. B
ISI Document Delivery No.: 636JG
Record 84 of 271
Author(s): Buaban, B (Buaban, Benchaporn); Inoue, H (Inoue, Hiroyuki); Yano, S (Yano, Shinichi); Tanapongpipat, S
(Tanapongpipat, Sutipa); Ruanglek, V (Ruanglek, Vasimon); Champreda, V (Champreda, Verawat); Pichyangkura, R
(Pichyangkura, Rath); Rengpipat, S (Rengpipat, Sirirat); Eurwilaichitr, L (Eurwilaichitr, Lily)
Title: Bioethanol production from ball milled bagasse using an on-site produced fungal enzyme cocktail and xylose-fermenting
Pichia stipitis
Source: JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 110 (1): 18-25 JUL 2010
Language: English
Author Keywords: Ball milling pretreatment; Ethanol; Lignocellulolytic enzymes; Pichia stipitis; Sugarcane bagasse
KeyWords Plus: SUGARCANE BAGASSE; ETHANOL-PRODUCTION; SIMULTANEOUS SACCHARIFICATION;
SACCHAROMYCES-CEREVISIAE; MILLING PRETREATMENT; SULFURIC-ACID; WHEAT-STRAW; CORN STOVER;
FERMENTATION; HYDROLYSIS
Abstract: Sugarcane bagasse is one of the most promising agricultural by-products for conversion to biofuels. Here, ethanol
fermentation from bagasse has been achieved using an integrated process combining mechanical pretreatment by ball milling, with
enzymatic hydrolysis and fermentation. Ball milling for 2 h was sufficient for nearly complete cellulose structural transformation
to an accessible amorphous form. The pretreated cellulosic residues were hydrolyzed by a crude enzyme preparation from
Penicillium chrysogenum BCC4504 containing cellulase activity combined with Aspergillus flavus BCC7179 preparation
containing complementary beta-glucosidase activity. Saccharification yields of 84.0% and 70.4% for glucose and xylose,
respectively, were obtained after hydrolysis at 45 degrees C, pH 5 for 72 h, which were slightly higher than those obtained with a
commercial enzyme mixture containing Acremonium cellulase and Optimash BG. A high conversion yield of undetoxified
pretreated bagasse (5%, w/v) hydrolysate to ethanol was attained by separate hydrolysis and fermentation processes using Pichia
stipitis BCC15191, at pH 5.5, 30 degrees C for 24 h resulting in an ethanol concentration of 8.4 g/l, corresponding to a conversion
yield of 0.29 g ethanol/g available fermentable sugars. Comparable ethanol conversion efficiency was obtained by a simultaneous
saccharification and fermentation process which led to production of 8.0 g/l ethanol after 72 h fermentation under the same
conditions. This study thus demonstrated the potential use of a simple integrated process with minimal environmental impact with
the use of promising alternative on-site enzymes and yeast for the production of ethanol from this potent lignocellulosic biomass.
(C) 2009, The Society for Biotechnology, Japan. All rights reserved.
Addresses: [Buaban, Benchaporn; Rengpipat, Sirirat] Chulalongkorn Univ, Fac Sci, Biotechnol Program, Bangkok 10330,
Thailand; [Buaban, Benchaporn; Tanapongpipat, Sutipa; Ruanglek, Vasimon; Champreda, Verawat; Eurwilaichitr, Lily] Natl Ctr
Genet Engn & Biotechnol BIOTEC, Enzyme Technol Lab, Bioresources Technol Unit, Klongluang 12120, Pathumthani, Thailand;
[Inoue, Hiroyuki; Yano, Shinichi] Natl Inst Adv Ind Sci & Technol, Biomass Technol Res Ctr, Hiroshima 7370197, Japan;
[Pichyangkura, Rath] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand
Reprint Address: Eurwilaichitr, L, Natl Ctr Genet Engn & Biotechnol BIOTEC, Enzyme Technol Lab, Bioresources Technol
Unit, 113 Thailand Sci Pk,Paholyothin Rd,Klong 1, Klongluang 12120, Pathumthani, Thailand.
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Funding Agency
Grant Number
BIOTEC, National Science and Technology Development Agency (NSTDA), Thailand
National Institute of Advanced Industrial Science and Technology (AIST, Chugoku)
This work was supported by BIOTEC, National Science and Technology Development Agency (NSTDA), Thailand. We would
like to thank the National Institute of Advanced Industrial Science and Technology (AIST, Chugoku) for providing AIST
Biomass-Asia Fellowship and giving an expert assistance. Manuscript proofreading by Dr. Philip Shaw is appreciated.
Times Cited: 0
Publisher: SOC BIOSCIENCE BIOENGINEERING JAPAN
Publisher Address: OSAKA UNIV, FACULTY ENGINEERING, 2-1 YAMADAOKA, SUITA, OSAKA, 565-0871, JAPAN
ISSN: 1389-1723
DOI: 10.1016/j.jbiosc.2009.12.003
29-char Source Abbrev.: J BIOSCI BIOENG
ISO Source Abbrev.: J. Biosci. Bioeng.
Subject Category: Biotechnology & Applied Microbiology; Food Science & Technology
ISI Document Delivery No.: 638BA
Record 85 of 271
Author(s): Uttatree, S (Uttatree, Sasithorn); Winayanuwattikun, P (Winayanuwattikun, Pakorn); Charoenpanich, J (Charoenpanich,
Jittima)
Title: Isolation and Characterization of a Novel Thermophilic-Organic Solvent Stable Lipase From Acinetobacter baylyi
Source: APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 162 (5): 1362-1376 NOV 2010
Language: English
Author Keywords: Solvent-stable lipase; Thermophilic lipase; Acinetobacter baylyi; Marine sludge; Biodiesel production
KeyWords Plus: EXTRACELLULAR LIPASE; TOLERANT BACTERIUM; CARBON-SOURCES; BIOCHEMICALPROPERTIES; THERMOSTABLE LIPASE; CALCOACETICUS LP009; GENE CLONING; PURIFICATION; BIODIESEL;
ENZYMES
Abstract: The benzene tolerant Acinetobacter baylyi isolated from marine sludge in Angsila, Thailand could constitutively
secrete lipolytic enzymes. The enzyme was successfully purified 21.89-fold to homogeneity by ammonium sulfate precipitation
and gel-permeable column chromatography with a relative molecular mass as 30 kDa. The enzyme expressed maximum activity at
60A degrees C and pH 8.0 with p-nitrophenyl palmitate as a substrate and found to be stable in pH and temperature ranging from
6.0-9.0 to 60-80A degrees C, respectively. A study on solvent stability revealed that the enzyme was highly resisted to many
organic solvents especially benzene and isoamyl alcohol, but 40% inhibited by decane, hexane, acetonitrile, and short-chain
alcohols. Lipase activity was completely inhibited in the presence of Fe2+, Mn2+, EDTA, SDS, and Triton X-100 while it was
suffered detrimentally by Tween 80. The activity was enhanced by phenylmethylsulfonyl fluoride (PMSF), Na+, and Mg2+ and no
significant effect was found in the presence of Ca2+ and Li+. Half of an activity was retained by Ba2+, Ag+, Hg+, Ni2+, Zn2+,
and DTT. The enzyme could hydrolyze a wide range of p-nitrophenyl esters, but preferentially medium length acyl chains
(C-8-C-12). Among natural oils and fats, the enzyme 11-folds favorably catalyzed the hydrolysis of rice bran oil, corn oil, sesame
oil, and coconut oil in comparison to palm oil. Moreover, the transesterification activity of palm oil to fatty acid methyl esters
(FAMEs) revealed 31.64 A +/- 1.58% after 48 h. The characteristics of novel A. baylyi lipase, as high temperature stability,
organic solvent tolerance, and transesterification capacity from palm oil to FAMEs, indicate that it could be a vigorous
biocatalyzer in the prospective fields as bioenergy industry or even in organic synthesis and pharmaceutical industry.
Addresses: [Charoenpanich, Jittima] Burapha Univ, Environm Sci Program, Bangsaen 20131, Chonburi, Thailand;
[Charoenpanich, Jittima] Burapha Univ, Ctr Excellence Environm Hlth Toxicol & Management, Fac Sci, Bangsaen 20131,
Chonburi, Thailand; [Uttatree, Sasithorn] Burapha Univ, Biol Sci Program, Bangsaen 20131, Chonburi, Thailand; [Uttatree,
Sasithorn] Burapha Univ, Ctr Excellence Innovat Chem PERCH CIC, Fac Sci, Bangsaen 20131, Chonburi, Thailand;
[Winayanuwattikun, Pakorn] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand; [Winayanuwattikun, Pakorn]
Chulalongkorn Univ, Biofuel Prod Biocatalyst Res Unit, Fac Sci, Bangkok 10330, Thailand; [Charoenpanich, Jittima] Burapha
Univ, Dept Biochem, Fac Sci, Bangsaen 20131, Chonburi, Thailand
Reprint Address: Charoenpanich, J, Burapha Univ, Environm Sci Program, Bangsaen 20131, Chonburi, Thailand.
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Funding Agency
Grant Number
Center of Excellence on Environmental Health, Toxicology, and Management of Chemicals (ETM-PERDO)
Center of Excellence for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of
Education
The accomplishment of this work was possible due to the funding support from Center of Excellence on Environmental Health,
Toxicology, and Management of Chemicals (ETM-PERDO) to JC. We are grateful for a financial support to SU from Center of
Excellence for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of Education. We would like
to thank Ms. S. Sinlapachai for her technical assistance in and Dr. N. Kurukitkoson for the proofreading of the manuscript.
Times Cited: 0
ISSN: 0273-2289
DOI: 10.1007/s12010-010-8928-x
ISI Document Delivery No.: 637TR
Record 86 of 271
Author(s): Chaicham, A (Chaicham, Anusak); Kulchat, S (Kulchat, Sirinan); Tumcharern, G (Tumcharern, Gamolwan); Tuntulani,
T (Tuntulani, Thawatchai); Tomapatanaget, B (Tomapatanaget, Boosayarat)
Title: Synthesis, photophysical properties, and cyanide detection in aqueous solution of BF2-curcumin dyes
Source: TETRAHEDRON, 66 (32): 6217-6223 AUG 7 2010
Language: English
KeyWords Plus: SELECTIVE COMPLEXATION; FLUORESCENT-PROBE; BODIPY DYES; METAL-IONS; IN-VIVO;
CURCUMIN; DERIVATIVES; SENSOR; CELLS; CHEMOSENSOR
Abstract: Derivatives of difluoroboron curcumin (BF2-curcumin, BF2-cur(OMe)(2), BF2-cur(OTs)(2), and BF2-curOTs), were
synthesized. All compounds possessed electron donor moieties at both ends of the conjugated pi system and an electron acceptor
moiety in the middle of the molecules (D-A-D system) and should exhibit different optical properties depending on substituents on
the benzene rings. Photophysical properties of curcumin and difluoroboron curcumin derivatives were explored. The electronwithdrawing substituent could decrease the electron acceptability of BF2-acceptor moiety resulting in the hypsochromic shift of
both absorption and emission bands. BF2-curcumin and BF2-cur(OMe)(2) displayed the positive solvatochromic effect relying
predominantly on polarity and polarizability of the solvent. Interestingly, BF2-curcumin showed high selectivity and sensitivity
towards cyanide with the detection limits of 22 mu M and 0.14 mu M measured by visual detection and UV-vis
spectrophotometry, respectively. Compared to the original curcumin, BF2-curcumin offered a remarkably promising detection of
cyanide with 66-fold enhancement in aqueous media (4:1 of CH3CN/H2O). Crown Copyright (C) 2010 Published by Elsevier
Ltd. All rights reserved.
Addresses: [Chaicham, Anusak; Kulchat, Sirinan; Tuntulani, Thawatchai; Tomapatanaget, Boosayarat] Chulalongkorn Univ, Fac
Sci, Dept Chem, Supramol Chem Res Unit, Bangkok 10330, Thailand; [Tumcharern, Gamolwan] Natl Sci & Technol Dev Agcy,
Natl Nanotechnol Ctr, Pathum Thani 12120, Thailand
Reprint Address: Tomapatanaget, B, Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
Thailand Graduate Institute of Science and Technology (TGIST)
Junior Science Talent Project (JSTP)
NN-B-22-b15-94-49-55
Thailand Research fund
RTA5080006
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AC is a M.Sc. student supported by Thailand Graduate Institute of Science and Technology (TGIST) and SK is a M.Sc. student
supported by Junior Science Talent Project (JSTP). The authors wish to thank the grants provided by National Nanotechnology
Center (NN-B-22-b15-94-49-55) and the Thailand Research fund (RTA5080006). The authors also appreciate THAI-CHINA
FLAVORS & FRAGRANCES INDUSTRY CO., LTD for providing the turmeric extract (curcumin powder).
Times Cited: 0
ISSN: 0040-4020
DOI: 10.1016/j.tet.2010.05.088
ISI Document Delivery No.: 633XY
Record 87 of 271
Author(s): Jivaramonaikul, W (Jivaramonaikul, Withet); Rashatasakhon, P (Rashatasakhon, Paitoon); Wanichwecharungruang, S
(Wanichwecharungruang, Supason)
Title: UVA absorption and photostability of coumarins
Source: PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 9 (8): 1120-1125 2010
Language: English
KeyWords Plus: PHOTODIMERIZATION; SPECTRA; DERIVATIVES; ACID; DYES
Abstract: Various substituted 4-methylcoumarin derivatives were synthesized in order to obtain photostable derivatives with UVA
absorption property. It was found that substitution positions affected maximum absorption wavelength, whereas types of
substituents, whether hydroxy or alkoxy groups, caused no significant effect. Photostability, however, was affected by both the
substitution positions and the types of substituents. An acid-catalyzed mechanism through enolization coupled with
pre-organization via hydrogen bonding between two coumarin moieties is proposed as an explanation for the different extents of
the [2+2] cycloaddition (dimerization) amongst different derivatives, which results in a different photostability amongst them.
Photostable coumarin derivatives with an absorption maximum in the UVA region are reported.
Addresses: [Rashatasakhon, Paitoon; Wanichwecharungruang, Supason] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok
10330, Thailand; [Jivaramonaikul, Withet] Chulalongkorn Univ, NCEPPAM, Bangkok 10330, Thailand; [Jivaramonaikul, Withet]
Chulalongkorn Univ, Fac Sci, Program Petrochem & Polymer Sci, Bangkok 10330, Thailand
Reprint Address: Wanichwecharungruang, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
BRG52
The authors thank the Thailand Research Fund (BRG52) and the Chulalongkorn University Graduate Thesis Grant for the
financial support.
Times Cited: 0
ENGLAND
ISSN: 1474-905X
DOI: 10.1039/c0pp00057d
29-char Source Abbrev.: PHOTOCHEM PHOTOBIOL SCI
ISO Source Abbrev.: Photochem. Photobiol. Sci.
Subject Category: Biochemistry & Molecular Biology; Biophysics; Chemistry, Physical
23/11/2553 18:36
ISI Document Delivery No.: 633PD
Record 88 of 271
Author(s): Butcher, BA (Butcher, Buntika Areekul); Quicke, DLJ (Quicke, Donald L. J.)
Title: Revision of the Indo-Australian braconine wasp genus Ischnobracon Baltazar (Hymenoptera: Braconidae) with description
of six new species from Thailand, Laos and Sri Lanka
Source: JOURNAL OF NATURAL HISTORY, 44 (35-36): 2187-2212 2010
Language: English
Author Keywords: Ichneumonoidea; Braconinae; taxonomy; new species; parasitoid
KeyWords Plus: PHYLOGENETIC ANALYSIS; WORLD
Abstract: The uncommon Asian braconine wasp genus Ischnobracon Baltazar is revised. Eleven species are recognized of which
six are described as new, namely I. albitarsus Butcher and Quicke from mainland Malaysia, I. baltazarae Butcher and Quicke from
the Philippines, I. hannongbuai Butcher and Quicke from Thailand, Laos, Myanmar and Indonesia (Sulawesi), I. morleyi Butcher
and Quicke from Sri Lanka, I. feliciae Butcher and Quicke from Thailand, I. xanthoflagellaris Butcher and Quicke from Thailand,
Laos and Vietnam. Ischnobracon rhyssides (Enderlein) is a new junior subjective synonym of I. laboriosus (Smith).
Addresses: [Quicke, Donald L. J.] Univ London Imperial Coll Sci Technol & Med, Dept Biol, Ascot SL5 7PY, Berks, England;
[Butcher, Buntika Areekul] Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand; [Quicke, Donald L. J.] Nat Hist
Museum, Dept Entomol, London SW7 5BD, England
Reprint Address: Quicke, DLJ, Univ London Imperial Coll Sci Technol & Med, Dept Biol, Silwood Pk Campus, Ascot SL5
7PY, Berks, England.
Funding Agency
Grant Number
NSF
DEB0542864
TRF
MRG4980034
CSTS
MOST F-31-303-09-01
We wish to thank Kees van Achterberg and Rob de Vries (Leiden), Henri Goulet and Caroline Boudreault (Ottawa), James
Hogan (Oxford), Robert Kula (Washington DC), Dominika Mierzwa (Warsaw), Shepherd Myers (Honolulu), Mike Sharkey
(Lexington, Kentucky: participation funded by NSF #DEB0542864) and Andreas Taeger (Muncheberg, formerly Eberswalde,
Germany) for the loans of specimens. The Animal Systematic Research Unit, Department of Biology, Faculty of Science,
Chulalongkorn University kindly allowed use of their Automontage(R) imaging facility. This work was partly supported by TRF
(MRG4980034), a new researcher scholarship (CSTS, MOST F-31-303-09-01) and a Chulalongkorn University Centenary
Academic Development Project grant to B.B.
Times Cited: 0
Publisher: TAYLOR & FRANCIS LTD
Publisher Address: 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
ISSN: 0022-2933
DOI: 10.1080/00222933.2010.488811
29-char Source Abbrev.: J NATUR HIST
ISO Source Abbrev.: J. Nat. Hist.
Subject Category: Biodiversity Conservation; Ecology
ISI Document Delivery No.: 635OG
Record 89 of 271
Author(s): Baebprasert, W (Baebprasert, Wipawee); Lindblad, P (Lindblad, Peter); Incharoensakdi, A (Incharoensakdi, Aran)
Title: Response of H-2 production and Hox-hydrogenase activity to external factors in the unicellular cyanobacterium
Synechocystis sp strain PCC 6803
Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 35 (13): 6611-6616 Sp. Iss. SI JUL 2010
Language: English
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Author Keywords: Synechocystis PCC 6803; Hox-hydrogenase; H-2 production; H(2)ase activity; Nitrogen deprivation;
beta-Mercaptoethanol
KeyWords Plus: SP PCC-6803; BIDIRECTIONAL HYDROGENASE; GROWTH; ACCUMULATION; TOLERANCE;
COMPLEX; CELLS
Abstract: The effects of external factors on both H-2 production and bidirectional Hox-hydrogenase activity were examined in
the non-N-2-fixing cyanobacterium Synechocystis PCC 6803. Exogenous glucose and increased osmolality both enhanced H-2
production with optimal production observed at 0.4% and 20 mosmol kg(-1), respectively. Anaerobic condition for 24 h induced
significant higher H(2)ase activity with cells in BC11(0) showing highest activities. Increasing the pH resulted in an increased
Hox-hydrogenase activity with an optimum at pH 7.5. The Hox-hydrogenase activity gradually increased with increasing
temperature from 30 degrees C to 60 degrees C with the highest activity observed at 70 degrees C. A low concentration at 100 mu
M of either DTT or beta-mercaptoethanol resulted in a minor stimulation of H-2 production. beta-Mercaptoethanol added to
nitrogen- and sulfur-deprived cells stimulated H-2 production significantly. The highest Hox-hydrogenase activity was observed
in cells in BG11(0)-S-deprived condition and 750 mu M beta-mercaptoethanol measured at a temperature of 70 degrees C; 14.32
mu mol H-2 mg chl alpha(-1) min(-1). (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
Addresses: [Lindblad, Peter] Uppsala Univ, Dept Photochem & Mol Sci, Angstrom Labs, SE-75120 Uppsala, Sweden;
[Baebprasert, Wipawee] Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok 10330, Thailand; [Baebprasert, Wipawee;
Incharoensakdi, Aran] Chulalongkorn Univ, Dept Biochem, Lab Cyanobacterial Biotechnol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Lindblad, P, Uppsala Univ, Dept Photochem & Mol Sci, Angstrom Labs, Box 523, SE-75120 Uppsala,
Sweden.
Funding Agency
Grant Number
Royal Golden Jubilee
PHD/0199/2549
Swedish Research Links programme
348-2009-6486
We thank the Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, for the permission to use the gas
chromatograph. This work was supported by the Royal Golden Jubilee Ph.D. program (PHD/0199/2549), the 90th Anniversary
of Chulalongkorn University Fund (Ratchadaphiseksomphote Endowment Fund) to W. Baebprasert and A. Incharoensakdi, and
the Swedish Research Links programme (project 348-2009-6486). The research grant by Commission on Higher Education,
Thailand (the University Staff Development Consortium) to A. Incharoensakdi is also acknowledged.
Times Cited: 0
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2010.04.047
29-char Source Abbrev.: INT J HYDROGEN ENERG
ISO Source Abbrev.: Int. J. Hydrog. Energy
Subject Category: Chemistry, Physical; Energy & Fuels; Environmental Sciences; Physics, Atomic, Molecular & Chemical
ISI Document Delivery No.: 634RO
Record 90 of 271
Author(s): Karunasawat, K (Karunasawat, Kewalee); Anprung, P (Anprung, Pranee)
Title: Effect of depolymerized mango pulp as a stabilizer in, oil-in-water emulsion containing sodium caseinate
Source: FOOD AND BIOPRODUCTS PROCESSING, 88 (C2-3): 202-208 JUL-SEP 2010
Language: English
Author Keywords: Sodium caseinate; Emulsion; Pectin; Mango
KeyWords Plus: ANTIOXIDANT ACTIVITY; CELLULASE; PECTINASE; FLOCCULATION; MIXTURES; FRUITS
Abstract: The effect of pectin in mango pulp in term of reducing sugar (45-100 mg glucose/g fresh weight) on oil-in-water
emulsion stability was investigated in systems containing sodium caseinate (0-6% (w/w)) and oil (20% (w/w)). Emulsion
stability was evaluated from average droplet size, viscosity and creaming stability. Results showed that emulsion made from
enzyme treated mango pulp had small average droplet size which led to more creaming stability than emulsion made from
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non-enzyme treated mango pulp. Increasing degree of hydrolysis for pectin in mango pulp significantly affected creaming stability
(p <= 0.05) but had no significant effect on average droplet size of the emulsion (p > 0.05). The emulsion with excellent stability
was found that made from depolymerized mango pulp with reducing sugar content of 60 mg glucose/g fresh weight (DP 60) and
2% (w/w) sodium caseinate. In addition, it was found that DP 60 could be used as an alternative stabilizer for oil-in-water food
emulsion. (C) 2010 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Addresses: [Anprung, Pranee] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand; [Karunasawat,
Kewalee] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330, Thailand
Funding Agency
Grant Number
Innovations for the Improvement of Food Safety and Food Quality for New World Economy, Government
Research Budget, Chulalomgkorn University, Thailand
This research was supported financially by the Integration Project: Innovations for the Improvement of Food Safety and Food
Quality for New World Economy, Government Research Budget, Chulalomgkorn University, Thailand.
Times Cited: 0
Publisher: INST CHEMICAL ENGINEERS
Publisher Address: 165-189 RAILWAY TERRACE, DAVIS BLDG, RUGBY CV21 3HQ, ENGLAND
ISSN: 0960-3085
DOI: 10.1016/j.fbp.2010.01.004
29-char Source Abbrev.: FOOD BIOPROD PROCESS
ISO Source Abbrev.: Food Bioprod. Process.
Subject Category: Biotechnology & Applied Microbiology; Engineering, Chemical; Food Science & Technology
ISI Document Delivery No.: 634JJ
Record 91 of 271
Author(s): Chimsook, P (Chimsook, Pitiporn); Teerawatananond, T (Teerawatananond, Thapong); Ngamrojanavanich, N
(Ngamrojanavanich, Nattaya); Muangsin, N (Muangsin, Nongnuj)
Title: Crystal structure of 12a-hydroxy-2,3,9-trimethoxy-12-oxo-6,6a,12,12a-tetrahydrochromeno[3,4-b]chromen-11-yl
4-methylbenzenesulfonate, C26H24O10S
Source: ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 225 (2): 374-376 2010
Language: English
Abstract: C26H24O10S, monoclinic, P2(1) (no. 4), a = 8.4239(4) angstrom, b = 16.9458(6) angstrom, c = 8.8568(4) angstrom,
beta = 105.480(1)degrees, V = 1218.5 angstrom(3), Z = 2, R-gt(F) = 0.037, wR(ref)(F-2) = 0.100, T = 296 K.
Addresses: [Teerawatananond, Thapong; Ngamrojanavanich, Nattaya; Muangsin, Nongnuj] Chulalongkorn Univ, Fac Sci, Dept
Chem, Bangkok 10330, Thailand; [Chimsook, Pitiporn] Chulalongkorn Univ, Fac Sci, Res Ctr Bioorgan Chem, Biotechnol
Programme, Bangkok 10330, Thailand
Reprint Address: Muangsin, N, Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Faculty of Science
A1B1
Thai Government
TKK2555
This work was supported by the Department of Chemistry and Research Funds from the Faculty of Science (A1B1), the Thailand
Research Fund (TRF) to NM, The Royal Golden Jubilee Ph.D. Program to PC, the Thai Government Stimulus Package 2
(TKK2555), under the Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agrigulture
and Center for Petroleum Petrochemicals and Advanced Materials.
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Times Cited: 0
Publisher: OLDENBOURG VERLAG
Publisher Address: LEKTORAT MINT, POSTFACH 80 13 60, D-81613 MUNICH, GERMANY
ISSN: 1433-7266
DOI: 10.1524/ncrs.2010.0164
29-char Source Abbrev.: Z KRIST-NEW CRYST STRUCT
ISO Source Abbrev.: Z. Krist.-New Cryst. Struct.
ISI Document Delivery No.: 631KK
Record 92 of 271
Author(s): Bualom, C (Bualom, Chantana); Ngeontae, W (Ngeontae, Wittaya); Nitiyanontakit, S (Nitiyanontakit, Sira); Ngamukot,
P (Ngamukot, Passapol); Imyim, A (Imyim, Apichat); Tuntulani, T (Tuntulani, Thawatchai); Aeungmaitrepirom, W
(Aeungmaitrepirom, Wanlapa)
Title: Bulk optode sensors for batch and flow-through determinations of lead ion in water samples
Source: TALANTA, 82 (2): 660-667 JUL 15 2010
Language: English
Author Keywords: Bulk optode; Lead ion; Lead IV; ETH 5294
KeyWords Plus: SOLID-PHASE EXTRACTION; ENVIRONMENTAL-SAMPLES; OPTICAL SENSOR; SELECTIVE
ELECTRODES; CHEMICAL SENSOR; DETECTION LIMIT; MEMBRANE; IONOPHORES; NICKEL; SILVER
Abstract: A sensitive optode consisting of highly lead-selective ionophore (Lead IV), proton-selective chromoionophore (ETH
5294) and lipophilic anionic sites (KTpCIPB) in plasticized polyvinyl chloride (PVC) membrane was fabricated. The optode
membranes were used for determination of Pb2+ by absorption spectrophotometry in batch and flow-through systems. The
influence parameters such as pH, type of buffer solution, response time and concentration of regenerating solution were optimized.
The membrane responded to Pb2+ by changing its color from blue to pinkish purple in Tris buffer containing different
concentration of Pb2+ at pH 7.0. The optode provided the response range of 3.16 x 10(-8) to 5.00 x 10(-5) mol L-1 Pb2+ with the
detection limit of 2.49 x 10(-8) mol L-1 in the batch system within the response time of 30 min. The dynamic range of 1.26 x
10(-8) to 3.16 x 10(-5) mol L-1 Pb2+ with detection limit of 8.97 x 10(-9) mol L-1 were obtained in the flow-through system
within the response time of 15 min. Moreover, the proposed optode sensors showed good selectivity towards Pb2+ over Na+,
K+, Mg2+, Cd2+, Hg2+ and Ag+. It was successfully applied to determine Pb2+ in real water samples and the results were
compared with well-established inductively coupled plasma optical emission spectrometry (ICP-OES). No significant different
value (t(critical) = 4.30> t(exp) = 1.00-3.42, n = 3 at 95% of confidence level) was found. (C) 2010 Elsevier B.V. All rights
reserved.
Addresses: [Bualom, Chantana; Nitiyanontakit, Sira; Ngamukot, Passapol; Imyim, Apichat; Tuntulani, Thawatchai;
Aeungmaitrepirom, Wanlapa] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Ngeontae, Wittaya] Khon
Kaen Univ, Ctr Innovat Chem, Dept Chem, Fac Sci, Khon Kaen 40002, Thailand
Reprint Address: Aeungmaitrepirom, W, Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
RTA 5080006
Ratchadaphiseksompoj Endowment Fund, Chulalongkorn University
GRU51-017-23-008
GRU52-007-23-002
This work was supported by the Thailand Research Fund (RTA 5080006) and Ratchadaphiseksompoj Endowment Fund,
Chulalongkorn University (GRU51-017-23-008 and GRU52-007-23-002)
Times Cited: 0
ISSN: 0039-9140
DOI: 10.1016/j.talanta.2010.05.028
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29-char Source Abbrev.: TALANTA
ISO Source Abbrev.: Talanta
ISI Document Delivery No.: 631UP
Record 93 of 271
Author(s): Siripatrawan, U (Siripatrawan, U.); Makino, Y (Makino, Y.); Kawagoe, Y (Kawagoe, Y.); Oshita, S (Oshita, S.)
Title: Near infrared spectroscopy integrated with chemometrics for rapid detection of E. coli ATCC 25922 and E. coli K12
Source: SENSORS AND ACTUATORS B-CHEMICAL, 148 (2): 366-370 JUL 15 2010
Language: English
Author Keywords: Vibrational spectroscopy; Chemometrics; Rapid method; Artificial neural network; E. coli
KeyWords Plus: NEURAL-NETWORK
Abstract: A rapid and accurate technique based on near infrared (NIR) spectroscopy integrated with chemometrics to identify and
quantify two strains of Escherichia coli including E. coli ATCC 25922 and E. coli K12 grown in liquid media was developed.
The samples were analyzed using aerobic count and recorded as colony forming units (CFU). The NIR spectra of both E. coli
strains at different growth stages were recorded from 750 to 1350 nm. Principal component analysis (PCA) was performed for a
data reduction purpose. Discriminant factor analysis (DFA) was then used to visualize sample classification. From DFA, it was
possible to differentiate between E. coli ATCC 25922 and E. coli K12 as well as different cell concentrations. The cell
concentrations were simultaneously predicted from the NIR spectral data using a supervised artificial neural network (ANN)
based on multilayer perceptrons with back propagation algorithm. The training function was a Levenberg-Marquardt algorithm.
The ANN yielded good predictions as measured by a regression coefficient (R-2 = 0.98) between actual and predicted data.
Compared to the colony counting method, the developed technique could be accurately performed in far less time and eliminate
the need for intensive sample preparation. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Siripatrawan, U.] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand; [Makino, Y.;
Kawagoe, Y.; Oshita, S.] Univ Tokyo, Grad Sch Agr & Life Sci, Dept Biol & Environm Engn, Lab Biol Syst Engn, Tokyo
1138654, Japan
Reprint Address: Siripatrawan, U, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Japan Society for the Promotion of Science P 08441
The authors gratefully acknowledge the full financial support provided by The Japan Society for the Promotion of Science (no. P
08441).
Times Cited: 0
ISSN: 0925-4005
DOI: 10.1016/j.snb.2010.05.024
29-char Source Abbrev.: SENSOR ACTUATOR B-CHEM
ISO Source Abbrev.: Sens. Actuator B-Chem.
Subject Category: Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
ISI Document Delivery No.: 631WV
Record 94 of 271
Author(s): Trongchuankij, W (Trongchuankij, Wiruyn); Poochinda, K (Poochinda, Kunakorn); Pruksathorn, K (Pruksathorn,
Kejvalee); Hunsom, M (Hunsom, Mali)
Title: A study on novel combined processes for preparation of high performance Pt-Co/C electrocatalyst for oxygen reduction in
PEM fuel cell
Source: RENEWABLE ENERGY, 35 (12): 2839-2843 DEC 2010
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Language: English
Author Keywords: Seeding; PEM fuel cell; Four-electron pathway; Cell performance
KeyWords Plus: ELECTRODES; MEMBRANE
Abstract: The preparation of a Pt-Co/C electrocatalyst for the oxygen reduction reaction in PEM fuel cells was achieved via a
novel combined process of impregnation and seeding. The effect of seeding and non-seeding approaches on the morphologies and
activities of the electrocatalyst was explored. The results indicated that the seeding or non-seeding approaches provided the
similar results of Pt structure and phase composition in the Pt-Co/C electrocatalyst. However, the seeding approach provided a
more uniform dispersion and smaller particle size of electrocatalyst compared with that of the non-seeding approach. Also, higher
values of kinetic parameters including i(0), E-0, i(0.9V) and E-10mA/cm2 were obtained in case of seeding electrocatalyst.
Finally, the rotating disk electrode experimental results showed that the mechanism of oxygen reduction involved the four-electron
pathway. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Trongchuankij, Wiruyn; Poochinda, Kunakorn; Pruksathorn, Kejvalee; Hunsom, Mali] Chulalongkorn Univ, Fuels Res
Ctr, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand; [Poochinda, Kunakorn; Pruksathorn, Kejvalee; Hunsom, Mali]
Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Hunsom, M, Chulalongkorn Univ, Fuels Res Ctr, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Energy Policy and Planning Office
Ministry of Energy
Petrochemical Technology Consortium, Department of Chemical Technology
The authors would like to thank the Center for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University,
and The Energy Policy and Planning Office, the Ministry of Energy, for financial support; plus The Petrochemical Technology
Consortium, Department of Chemical Technology. Faculty of Science, Chulalongkorn University and the Thai Government
Stimulus Package 2 (TKK2555), under the Project for Establishment of Comprehensive Center for Innovative Food, Health
Products and Agriculture, for facility support. We also would like to thank the Publication Counseling Unit (PCU) of the Faculty
of Science, Chulalongkorn University, and Dr. Robert DJ. Butcher for comments, suggestions and checking the grammar.
Times Cited: 0
ISSN: 0960-1481
DOI: 10.1016/j.renene.2010.05.007
29-char Source Abbrev.: RENEWABLE ENERGY
ISO Source Abbrev.: Renew. Energy
Subject Category: Energy & Fuels
ISI Document Delivery No.: 631VU
Record 95 of 271
Author(s): Konkumnerd, W (Konkumnerd, Wichchulada); Karnchanatat, A (Karnchanatat, Aphichart); Sangvanich, P (Sangvanich,
Polkit)
Title: A thermostable lectin from the rhizomes of Kaempferia parviflora
Source: JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 90 (11): 1920-1925 AUG 30 2010
Language: English
Author Keywords: Kaempferia parviflora; thermostable; lectin; LC/MS/MS
KeyWords Plus: ANTIPROLIFERATIVE ACTIVITY; PURIFICATION; QUANTITIES; AGGLUTININ; BINDING; SEEDS
Abstract: BACKGROUND: Kaempferia parviflora, or black galingale (Kra-Chai-Dam), belongs to the Zingiberaceae family and
is used as both a food ingredient and a medicinal plant. There are diverse reports on the biological activities of compounds
extracted from the plant, such as antimalarial, antifungal and an effective sexual-enhancing role, but not on the lectins.
RESULTS: A lectin was isolated from the rhizomes of Kaempferia parviflora using affinity chromatography on Concanavalin A
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followed by gel filtration chromatography on Sephacryl S-100. The molecular weight of the purified lectin was about 41.7 kDa.
This lectin showed haemagglutinating activity against erythrocytes from several sources, with the highest level being against those
from rabbits. Moreover, the lectin was thermostable, with significant haemagglutinating activity detectable up to 75 degrees C.
The results of trypsin digestion and liquid chromatography/tandem mass spectrometry analysis suggested that this protein could be
a member of the lectin/endochitnasel family.
CONCLUSION: A lectin that showed thermotolerant haemagglutinating activity against erythrocytes from several sources was
successfully purified from K. paviflora rhizomes. Peptide sequence analysis indicated that this lectin is similar to
lectin/endochitinase 1 (Urtica dioica) or Hevein-like protein (Hevea brasiliensis). (C) 2010 Society of Chemical Industry
Addresses: [Sangvanich, Polkit] Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand;
[Konkumnerd, Wichchulada] Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok 10330, Thailand; [Karnchanatat,
Aphichart] Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Bangkok 10330, Thailand
Reprint Address: Sangvanich, P, Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thai Government
TKK2555
AG001B
Institute of Biotechnology and Genetic Engineering, Faculty of Science, Chulalongkorn University
The authors thank Chulalongkorn University (graduate school thesis grant), the Thai Government Stimulus Package 2
(TKK2555), under the Project for Establishment of Comprehensive Center for Innovative Food, Health Products and
Agrigulture, Ratchadapisek Somphot Endowment Fund (AG001B) for financial support of this research, and the Institute of
Biotechnology and Genetic Engineering, Faculty of Science, Chulalongkorn University for support and facilities. We also thank
Dr. Robert Butcher (Publication Counselling Unit, Chulalongkorn University) for his constructive comments in preparing this
manuscript.
Times Cited: 0
ISSN: 0022-5142
DOI: 10.1002/jsfa.4033
29-char Source Abbrev.: J SCI FOOD AGR
ISO Source Abbrev.: J. Sci. Food Agric.
Subject Category: Agriculture, Multidisciplinary; Chemistry, Applied; Food Science & Technology
ISI Document Delivery No.: 633ES
Record 96 of 271
Author(s): Davis, BW (Davis, Bryce W.); Niamnont, N (Niamnont, Nakorn); Hare, CD (Hare, Christopher D.); Sukwattanasinitt,
M (Sukwattanasinitt, Mongkol); Cheng, QA (Cheng, Quan)
Title: Nanofibers Doped with Dendritic Fluorophores for Protein Detection
Source: ACS APPLIED MATERIALS & INTERFACES, 2 (7): 1798-1803 JUL 2010
Language: English
Author Keywords: electrospinning; fluorescent dendrimers; protein biosensor; nanofibers
KeyWords Plus: CONJUGATED POLYMER; BIOSENSOR APPLICATIONS; MEMBRANES; CELLULOSE; FIBERS;
DENDRIMERS; SCAFFOLDS; SENSORS
Abstract: We report a solid-state, nanofiber-based optical sensor for detecting proteins with an anionic fluorescent dendrimer
(AFD). The AFD was encapsulated in cellulose acetate (CA) electrospun nanofibers, which were deacetylated to cellulose to
generate secondary porous structures that are desirable for enhancing molecular interactions, and thus better signaling. The protein
sensing properties of the fibers were characterized by monitoring the fluorescence response of cytochrome c (cyt c), hemoglobin
(Hgb), and bovine serum albumin (BSA) as a function of concentration. Effective quenching was observed for the metalloproteins,
cyt c and Hgb. The effect was primarily due to energy transfer of the imbedded fluorescent dendrimers to the protein, as both
proteins contain heme portions. Electron transfer, caused through the electrostatic effects in the binding of the anionic dendrimer to
the positive patches of globular proteins, could be responsible as well. BSA, on the other hand, triggered a "turn-on" response in
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fluorescence, suggesting the negatively charged BSA reduces the pi-pi stacking of the partially dispersed, negatively charged
dendritic fluorophores through repulsion forces, which results in an increase in fluorescence. Stern-Volmer constants (K-sv) of the
electrospun fibers were found to be 3.4 x 10(5) and 1.7 x 10(6) M-1 for cyt c and Hgb, respectively. The reusability of the
nanofibers is excellent: the nanofibers demonstrated less than 15% change of fluorescence intensity signal in a 5-cycle test.
Addresses: [Niamnont, Nakorn; Sukwattanasinitt, Mongkol] Chulalongkorn Univ, Organ Synth Res Unit, Dept Chem, Fac Sci,
Bangkok 10330, Thailand; [Davis, Bryce W.; Hare, Christopher D.; Cheng, Quan] Univ Calif Riverside, Dept Chem, Riverside,
CA 92521 USA; [Niamnont, Nakorn; Sukwattanasinitt, Mongkol] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok
10330, Thailand
Thailand.
Funding Agency
Grant Number
NSF
CHE-0719224
Thailand's National Nanotechnology Center NN-B-22-FN9-10-52-06
The authors acknowledge financial support from NSF grant CHE-0719224 (Q.C.) and Thailand's National Nanotechnology
Center grant NN-B-22-FN9-10-52-06 (M.S.). Images were collected at the Microscopy Core/Center for Plant Cell Biology at
the Institute for Integrative Genome Biology at the University of California, Riverside. We thank Jeff Lefler and Craig Graham
for the help in the design and construction of the electrospinning setup.
Times Cited: 0
ISSN: 1944-8244
DOI: 10.1021/am100345g
29-char Source Abbrev.: ACS APPL MATER INTERFACES
ISO Source Abbrev.: ACS Appl. Mater. Interfaces
Subject Category: Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
ISI Document Delivery No.: 631SB
Record 97 of 271
Author(s): Noppakundilograt, S (Noppakundilograt, Supaporn); Nanakorn, P (Nanakorn, Praon); Jinsart, W (Jinsart, Wanida);
Kiatkamjornwong, S (Kiatkamjornwong, Suda)
Title: Synthesis of Acrylamide/Acrylic Acid-Based Aluminum Flocculant for Dye Reduction and Textile Wastewater Treatment
Source: POLYMER ENGINEERING AND SCIENCE, 50 (8): 1535-1546 AUG 2010
Language: English
KeyWords Plus: CONGO-RED; AQUEOUS-SOLUTION; FLY-ASH; REMOVAL; ADSORPTION; EQUILIBRIUM;
HYDROGELS; COAGULANT; SPECIATION; COMPLEXES
Abstract: Aluminum hydroxide-poly[acrylamide-co-(acrylic acid)], AHAMAA, was synthesized with a redox initiator by
solution polymerization in which the effects of reactant contents were optimized. The effects of pH, temperature, and initial dye
concentration on Congo red reduction were investigated. A mixture of Congo red and direct blue 71, and the composite textile dye
wastewater were investigated. Adsorptions of both dyes were more effective in the nonbuffered solution than those in the buffered
solution, and Congo red adsorbed more than direct blue 71 at all pHs. The adsorption of Congo red increased with increasing
temperature and its initial concentration. Both dyes obeyed the Freundlich adsorption isotherm. The maximum adsorptions in 100
mg dm(-3) solution were 109 +/- 0.5 mg g(-1) and 62 +/- 6.6 mg g(-1) for Congo red and direct blue 71, respectively. At 150 mg
dm(-3) of the mixed Congo red and direct blue 71, the adsorption was 142 +/- 2 mg g(-1) by 643 +/- 3 mg dm(-3) AHAMAA. The
40 mg g(-1) dyes of the textile effluent wastewater were adsorbed by 500 mg dm(-3) AHAMAA. AHAMAA could decrease
turbidity of the composite wastewater containing a mixture of reactive and direct dyes from 405 to 23 NTU. POLYM. ENG. SCI.,
50:1535-1546, 2010. (C) 2010 Society of Plastics Engineers
Addresses: [Noppakundilograt, Supaporn; Kiatkamjornwong, Suda] Chulalongkorn Univ, Dept Imaging & Printing Technol, Fac
Sci, Bangkok 10330, Thailand; [Nanakorn, Praon] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci, Bangkok
10330, Thailand; [Jinsart, Wanida] Chulalongkorn Univ, Dept Gen Sci, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Kiatkamjornwong, S, Chulalongkorn Univ, Dept Imaging & Printing Technol, Fac Sci, Bangkok 10330,
Thailand.
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Funding Agency
Grant Number
RTA4780004
RTA5080004
Contract grant sponsor: Senior Scholar Research Team Consolidation Grants (Thailand Research Fund); contract grant numbers:
RTA4780004, RTA5080004.
Times Cited: 0
ISSN: 0032-3888
DOI: 10.1002/pen.21694
29-char Source Abbrev.: POLYM ENG SCI
ISO Source Abbrev.: Polym. Eng. Sci.
Subject Category: Engineering, Chemical; Polymer Science
ISI Document Delivery No.: 630MU
Record 98 of 271
Author(s): Tananuwong, K (Tananuwong, Kanitha); Lertsiri, S (Lertsiri, Sittiwat)
Title: Changes in volatile aroma compounds of organic fragrant rice during storage under different conditions
Source: JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 90 (10): 1590-1596 AUG 15 2010
Language: English
Author Keywords: organic fragrant rice; SPME/GC/MS; volatile compounds; packaging; storage temperature
KeyWords Plus: ODOR-ACTIVE COMPOUNDS; BROWN RICE; DRYING METHODS; 2-ACETYL-1-PYRROLINE;
HEADSPACE; COMPONENTS; COOKING; QUALITY; MS
Abstract: BACKGROUND: Aroma of fragrant rice greatly affects palatability as well as consumer acceptability. Loss of
desirable volatile compounds such as 2-acetyl-1-pyrroline (2-AP) and increase in volatile lipid oxidation products in aged rice
have been reported. The aim of this study was to monitor the changes in key volatile compounds of organic red fragrant rice cv.
Horn Daeng during storage. Effects of packaging material, storage temperature and time were evaluated using solid phase
microextraction/gas chromatography/mass spectrometry.
RESULTS: Thirteen key volatile compounds including ten lipid oxidation products were monitored. For samples vacuum packed
in Nylon/LLDPE pouches at ambient temperature, significant increases in hexanal, 2-pentylfuran, 1-octanol and 4-vinyl guaiacol
and significant decreases in 2-AP and geranyl acetone were found after the second month (P <= 0.05). Vacuum packing in OPP/Al
/LLDPE pouches or storage at 15 degrees C better retarded the formation of volatile lipid oxidation products and greater retained
desirable odorants, including 2-AP. However, accumulation of lipid oxidation products and 4-vinyl guaiacol was apparent after
the sixth month under these storage conditions.
CONCLUSION: A greater extent and higher rate of undesirable changes in volatile compounds were found in samples stored
under Nylon/LLDPE/ambient temperature condition. Nevertheless, this condition is acceptable for the retail trade of organic rice
in Thailand. Storage conditions using reduced temperature or better packaging materials may be more appropriate for exported
rice or superior-grade fragrant rice to better maintain the desirable rice aroma. (C) 2010 Society of Chemical Industry
Addresses: [Tananuwong, Kanitha] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand; [Lertsiri,
Sittiwat] Mahidol Univ, Fac Sci, Dept Biotechnol, Bangkok 10400, Thailand
Reprint Address: Tananuwong, K, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Commission on Higher Education, Ministry of Education, Thailand
Thailand Research Fund, Thailand
MRG5180051
Financial support from the Commission on Higher Education, Ministry of Education, Thailand and the Thailand Research Fund,
Thailand (MRG5180051) is gratefully acknowledged.
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Times Cited: 0
ISSN: 0022-5142
DOI: 10.1002/jsfa.3976
29-char Source Abbrev.: J SCI FOOD AGR
ISO Source Abbrev.: J. Sci. Food Agric.
ISI Document Delivery No.: 628LO
Record 99 of 271
Author(s): Phongphanphanee, S (Phongphanphanee, Saree); Rungrotmongkol, T (Rungrotmongkol, Thanyada); Yoshida, N
(Yoshida, Norio); Hannongbua, S (Hannongbua, Supot); Hirata, F (Hirata, Fumio)
Title: Proton Transport through the Influenza A M2 Channel: Three-Dimensional Reference Interaction Site Model Study
Source: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 132 (28): 9782-9788 JUL 21 2010
Language: English
KeyWords Plus: M-2 ION-CHANNEL; AQUEOUS-SOLUTION; 3D-RISM THEORY; MEAN FORCE; H+ CHANNEL; VIRUS;
PROTEIN; MECHANISM; SELECTIVITY; CONDUCTION
Abstract: The three-dimensional distribution function (DF) and the potential of mean force (PMF) of water and hydronium ions in
five protonated states of the influenza A M2 channel are calculated by means of the three-dimensional reference interaction site
model (3D-RISM) theory in order to clarify the proton conduction mechanism of the channel. Each protonated state, denoted as
iH, where i = 0-4, has a different number of protonated histidines, from 0 to 4. The DF of water in each state exhibits closed
structures of 0H, 1H, and 2H and open structures in 3H and 4H. In the closed form, the DF and PMF indicate that hydronium ions
are excluded from the channel. In contrast, the ion can distribute throughout the opened channel. The barrier in PMF of 3H, similar
to 3-5 kJ/mol, is lower than that of 4H, 5-7 kJ/mol, indicating that 3H has higher permeability to protons. On the basis of the radial
DFs of water and hydronium ions around the imidazole rings of His37, we propose a new mechanism of proton transfer through
the gating region of the channel. In this process, a hydronium ion hands a proton to a non-protonated histidine through a hydrogen
bond between them, and then the other protonated histidine releases a proton to a water molecule via a hydrogen bond. The
process transfers a proton effectively from one water molecule to another.
Addresses: [Phongphanphanee, Saree; Yoshida, Norio; Hirata, Fumio] Inst Mol Sci, Dept Theoret & Computat Mol Sci, Okazaki,
Aichi 4448585, Japan; [Rungrotmongkol, Thanyada] Chulalongkorn Univ, Ctr Innovat Nanotechnol, Bangkok 10330, Thailand;
[Hannongbua, Supot] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Yoshida, Norio; Hirata, Fumio] Grad
Univ Adv Studies, Dept Funct Mol Sci, Okazaki, Aichi 4448585, Japan
Reprint Address: Hirata, F, Inst Mol Sci, Dept Theoret & Computat Mol Sci, Okazaki, Aichi 4448585, Japan.
MEXT in Japan
These works are supported by the Grant-in Aid for Scientific Research on Innovative Areas "Molecular Science of Fluctuations
toward Biological Functions" from the MEXT in Japan. We are also grateful to Next Generation Integrated Nanoscience
Simulation Software, the project of the ministry, and JENESYS, the program under the JSPS exchange program for East Asian
young researchers. Molecular graphics images were produced using the UCSF Chimera package.40
Times Cited: 0
ISSN: 0002-7863
DOI: 10.1021/ja1027293
29-char Source Abbrev.: J AM CHEM SOC
ISO Source Abbrev.: J. Am. Chem. Soc.
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ISI Document Delivery No.: 628AQ
Record 100 of 271
Author(s): Potiyaraj, P (Potiyaraj, Pranut); Subhakalin, C (Subhakalin, Chutipak); Sawangharsub, B (Sawangharsub,
Benchaphon); Udomkichdecha, W (Udomkichdecha, Werasak)
Title: Recognition and re-visualization of woven fabric structures
Source: INTERNATIONAL JOURNAL OF CLOTHING SCIENCE AND TECHNOLOGY, 22 (2-3): 79-87 2010
Language: English
Author Keywords: Pattern recognition; Image processing; Computer software; Fabric production processes
KeyWords Plus: FIBROUS ASSEMBLIES; WEAVE PATTERNS; IMAGE-ANALYSIS
Abstract: Purpose - The purpose of this paper is to develop a computerized program that can recognize woven fabric structures
and simultaneously use the obtained data to 3D re-visualize the corresponding woven fabric structures.
Design/methodology/approach - A 2D bitmap image of woven fabric was initially acquired using an ordinary desktop flatbed
scanner. Through several image-processing and analysis techniques as well as recognition algorithms, the weave pattern was then
identified and stored in a digital format. The weave pattern data were then used to construct warp and weft yarn paths based on
Peirce's geometrical model.
Findings - By combining relevant weave parameters, including yarn sizes, warp and weft densities, yarn colours as well as crosssectional shapes, a 3D image of yarns assembled together as a woven fabric structure is produced and shown on a screen through
the virtual reality modelling language browser.
Originality/value - Woven fabric structures can now be recognised and simultaneously use the obtained data to 3D re-visualize the
corresponding woven fabric structures.
Addresses: [Potiyaraj, Pranut; Subhakalin, Chutipak; Sawangharsub, Benchaphon; Udomkichdecha, Werasak] Chulalongkorn
Univ, Dept Mat Sci, Fac Sci, Ctr Excellence Text, Bangkok, Thailand; [Potiyaraj, Pranut] Chulalongkorn Univ, Natl Ctr
Excellence Petr Petrochem & Adv Mat, Bangkok, Thailand
Reprint Address: Potiyaraj, P, Chulalongkorn Univ, Dept Mat Sci, Fac Sci, Ctr Excellence Text, Bangkok, Thailand.
Funding Agency
Grant Number
National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn
University
Sincere gratitude must be given to the Thailand Research Fund for funding this project. Also, this work would not have been
possible without the support of National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials,
Chulalongkorn University.
Times Cited: 0
Publisher: EMERALD GROUP PUBLISHING LIMITED
Publisher Address: HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND
ISSN: 0955-6222
DOI: 10.1108/09556221011018577
29-char Source Abbrev.: INT J CLOTH SCI TECHNOL
ISO Source Abbrev.: Int. J. Cloth. Sci. Technol.
Subject Category: Materials Science, Textiles
ISI Document Delivery No.: 630LL
[ 1|2|3]
Acceptable Use Policy
Copyright © 2008 Thomson Reuters
23/11/2553 18:36
http://pcs.isiknowledge.com/uml/uml_view.cgi?product=WOS&...
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Record 101 of 271
Author(s): Theeraapisakkun, M (Theeraapisakkun, M.); Klinbunga, S (Klinbunga, S.); Sittipraneed, S (Sittipraneed, S.)
Title: Development of a species-diagnostic marker and its application for population genetics studies of the stingless bee Trigona
collina in Thailand
Language: English
Author Keywords: Stingless bees; Trigona collina; AFLP; SSCP; Species-specific marker; Population differentiation
KeyWords Plus: FRAGMENT-LENGTH-POLYMORPHISM; APIS-CERANA; HONEY-BEE; HYMENOPTERA; APIDAE;
DNA; DIFFERENTIATION; POLLINATION; AFLP; QUADRIFASCIATA
Abstract: A molecular maker for authenticating species origin of the stingless bee (Trigona collina) was developed. Initially,
amplified fragment length polymorphism analysis was made of 11 stingless bee species using 64 primer combinations. A 316-bp
band found only in T. collina was cloned and sequenced. A primer pair (CUTc1-F/R) was designed and tested for speciesspecificity in 15 stingless bee species (239 nests). The expected 259-bp fragment was consistently amplified in all T. collina
individuals (134/134 nests, 100%). Cross-species amplification was observed in T. pagdeni (43/51 nests; 84.3%), but not in
other species. SSCP analysis of CUTc1 unambiguously differentiated T. collina from T. pagdeni. CUTc1 generated three
genotypes in Thai T. collina (134 nests). An AA (259/259 bp) genotype was found in all stingless bees from the north (21 nests)
and northeast (32 nests), and 23/28 nests from the Central region, whereas a BB (253/253 bp) genotype was observed in most
samples from peninsular Thailand (42/53 nests). Heterozygotes exhibiting the AB (253/259 bp) genotype were observed in 5 of
28 nests from Prachuap Khiri Khan located slightly above the Kra ecotone and 11 of 53 nests originated further south of the Kra
ecotone. Genotype distribution patterns of CUTc1 clearly indicated intraspecific population differentiation of Thai T. collina.
Addresses: [Theeraapisakkun, M.; Sittipraneed, S.] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok, Thailand; [Klinbunga,
S.] Natl Sci & Dev Agcy, Natl Ctr Genet Engn & Biotechnol, Pathum Thani, Thailand; [Klinbunga, S.] Chulalongkorn Univ, Fac
Sci, Ctr Excellence Marine Biotechnol, Bangkok, Thailand
Reprint Address: Sittipraneed, S, Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok, Thailand.
Funding Agency
Grant Number
Royal Golden Jubilee Ph.D. program PHD//0004/2548
Thailand Research Funds (TRF)
We thank the Bee Research Unit, Faculty of Science, Chulalongkorn University and National Center for Genetic Engineering and
Biotechnology (BIOTEC), Thailand, for providing facilities. A student grant (M. Theeraapisakkun) was supported by the Royal
Golden Jubilee Ph.D. program (Grant #PHD//0004/2548), and the Thailand Research Funds (TRF) provided funding.
Times Cited: 0
ISSN: 1676-5680
DOI: 10.4238/vol9-2gmr775
Record 102 of 271
Author(s): Praipue, P (Praipue, P.); Klinbunga, S (Klinbunga, S.); Jarayabhand, P (Jarayabhand, P.)
Title: Genetic diversity of wild and domesticated stocks of Thai abalone, Haliotis asinina (Haliotidae), analyzed by single-strand
conformational polymorphism of AFLP-derived markers
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Language: English
Author Keywords: AFLP; SSCP; Abalone; Genetic diversity; Domestication; Stock identification
KeyWords Plus: SHRIMP PENAEUS-MONODON; TROPICAL ABALONE; SPECIES IDENTIFICATION; POPULATIONSTRUCTURE; NATURAL-POPULATIONS; DNA; CONSERVATION; FISHERIES; SCAR; SSCP
Abstract: Amplified fragment length polymorphism (AFLP) analysis was carried out on representative individuals of wild
Haliotis asinina using 64 primer combinations. Nine polymorphic AFLPs were cloned and sequenced. Sequence-specific primers
were designed from six AFLP-derived fragments. Three sequence-characterized amplified region (SCAR) markers
(HaSCAR(320), HaSCAR(295), HaSCAR(327)) were selected for genotyping of 8-month-old domesticated stocks of H. asinina
cultured separately at Sichang Marine Science Research and Training Station (N = 95) and at a hatchery in Trang province (N =
40) using single-strand conformational polymorphism analysis. Genotypes of wild abalone originating from Talibong Island (N =
25), Cambodia (N = 22), and the P-0 progeny established from Samet Island founders (N = 20) were also investigated. Significant
genetic differentiation (P < 0.0001 for the exact test and F-ST = 0.8759-0.8919, P < 0.001) between abalone from the Gulf of
Thailand (Cambodia and Samet Island - east) and the Andaman Sea (Talibong Island - west) were observed. This demonstrated
the strong biogeographic structure of H. asinina in Thai waters. Non-overlapping composite genotypes for wild abalone from
different coastal regions allow us to determine founder contributions in domesticated abalone stocks. Almost all Sichang Marine
Science Research and Training Station and the Trang province hatchery stocks exhibited the east coast genotypes (97% of the 135
samples). We suggest that abalone from the east coast population have better survival rates under cultivated conditions than those
from the west coast population.
Addresses: [Klinbunga, S.] Natl Sci & Technol Dev Agcy, Natl Ctr Genet Engn & Biotechnol, Aquat Mol Genet & Biotechnol
Lab, Klongluang, Pathumthani, Thailand; [Praipue, P.] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok, Thailand;
[Klinbunga, S.] Chulalongkorn Univ, Fac Sci, Ctr Excellence Marine Biotechnol, Bangkok, Thailand; [Jarayabhand, P.]
Chulalongkorn Univ, Fac Sci, Dept Marine Sci, Bangkok, Thailand; [Jarayabhand, P.] Chulalongkorn Univ, Aquat Resources Res
Inst, Bangkok, Thailand
Reprint Address: Klinbunga, S, Natl Sci & Technol Dev Agcy, Natl Ctr Genet Engn & Biotechnol, Aquat Mol Genet &
Biotechnol Lab, Klongluang, Pathumthani, Thailand.
Times Cited: 1
ISSN: 1676-5680
DOI: 10.4238/vol9-2gmr808
Record 103 of 271
Author(s): Chaichana, T (Chaichana, Tuangrat); Komatsu, T (Komatsu, Takao); Laohakosol, V (Laohakosol, Vichian)
Title: Liouville numbers in the non-archimedean case
Source: PUBLICATIONES MATHEMATICAE-DEBRECEN, 77 (1-2): 39-63 JUN 2010
Language: English
Author Keywords: Liouville numbers; non-archimedean valuation
KeyWords Plus: CONTINUED FRACTIONS; SERIES; FIELDS
Abstract: Basic results about real Lionville numbers are investigated in three non-archimedean settings, referred to as the
non-archimedean case, comprising the field of p-adic numbers, the function field completed with respect to the degree valuation
and the function field completed with respect to a prime-adic valuation. The result of Erdos that every real number is
representable as a sum, and as a product of two real Lionville numbers is shown to hold in the non-archimedean case. The concept
of Lionville continued fractions is also considered.
Addresses: [Chaichana, Tuangrat] Chulalongkorn Univ, Dept Math, Fac Sci, Bangkok 10330, Thailand; [Chaichana, Tuangrat] Ctr
Excellence Math, Bangkok 10400, Thailand; [Komatsu, Takao] Hirosaki Univ, Grad Sch Sci & Technol, Hirosaki, Aomori
0368561, Japan; [Laohakosol, Vichian] Kasetsart Univ, Dept Math, Fac Sci, Bangkok 10900, Thailand
Reprint Address: Chaichana, T, Chulalongkorn Univ, Dept Math, Fac Sci, Bangkok 10330, Thailand.
2 of 84
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Funding Agency
Grant Number
RTA5180005
Centre of Excellence In Mathematics, the Commission on Higher Education, Thailand
18540006
We wish to thank Dr. NARAKORN R. KANASRI of Khon Kaen University for some of the clarifications. The first and third
authors are supported by the Commission on Higher Education and the Thailand Research Fund RTA5180005, and by the Centre
of Excellence In Mathematics, the Commission on Higher Education, Thailand. The second author is supported in part by the
Grant-in-Aid for Scientific Research (C) (No.] 18540006), the Japan Society for the Promotion of Science.
Times Cited: 0
Publisher: KOSSUTH LAJOS TUDOMANYEGYETEM
Publisher Address: MATEMATIKAI INTEZET NAGYERDEIKORUT, 10 DEBRECEN, HUNGARY
ISSN: 0033-3883
29-char Source Abbrev.: PUBL MATH-DEBRECEN
ISO Source Abbrev.: Publ. Math.-Debr.
ISI Document Delivery No.: 624DJ
Record 104 of 271
Author(s): Suppaibulsuk, B (Suppaibulsuk, Bunthita); Prasassarakich, P (Prasassarakich, Pattarapan); Rempel, GL (Rempel,
Garry L.)
Title: Factorial design of nanosized polyisoprene synthesis via differential microemulsion polymerization
Source: POLYMERS FOR ADVANCED TECHNOLOGIES, 21 (7): 467-475 JUL 2010
Language: English
Author Keywords: microemulsion polymerization; nanoparticles; polyisoprene
KeyWords Plus: SODIUM DODECYL-SULFATE; EMULSION POLYMERIZATION; LATEXES; SURFACTANT; PARTICLES;
KINETICS; NANOPARTICLES; TEMPERATURE; STYRENE
Abstract: The synthesis of nanosized polyisoprene latex was carried out by differential microemulsion polymerization using 2,
2'-Azoisobutyronitrile (AIBN) initiator system under various reaction conditions. A 2(V)(5-1) fractional factorial experimental
design was applied to study the effects of reaction variables: amount of initiator and surfactant, monomer-to-water ratio, reaction
temperature, and stirring speed on rubber particle size and monomer conversion. The analysis of the results from the design
showed the main effects on the observed response and the amount of initiator, reaction temperature and stirring speed in the range
of the test had significant effects on polyisoprene particle size. The significant effects on monomer conversion were reaction
temperature, stirring speed, and interaction between reaction temperature and stirring speed in the range of the test. The optimum
conditions gave highest monomer conversion of 90% and average particle size of polyisoprene of 27 nm. The nanosized
polyisoprene was also characterized by Fourier transform infrared (FTIR) spectroscopy and nuclear magnetic resonance (NMR)
spectroscopy. Copyright (C) 2009 John Wiley & Sons, Ltd.
Addresses: [Suppaibulsuk, Bunthita; Prasassarakich, Pattarapan] Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok
10330, Thailand; [Rempel, Garry L.] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada; [Prasassarakich,
Pattarapan] Chulalongkorn Univ, Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Prasassarakich, P, Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
NCE-PPAM
Natural Sciences and Engineering Research Council of Canada (NSERC)
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The authors gratefully acknowledge the support of the Thailand Research Fund (through the Royal Golden Jubilee Project),
NCE-PPAM, and the Natural Sciences and Engineering Research Council of Canada (NSERC).
Times Cited: 0
ISSN: 1042-7147
DOI: 10.1002/pat.1450
29-char Source Abbrev.: POLYM ADVAN TECHNOL
ISO Source Abbrev.: Polym. Adv. Technol.
ISI Document Delivery No.: 626DP
Record 105 of 271
Author(s): Nunthaboot, N (Nunthaboot, Nadtanet); Rungrotmongkol, T (Rungrotmongkol, Thanyada); Malaisree, M (Malaisree,
Maturos); Decha, P (Decha, Panita); Kaiyawet, N (Kaiyawet, Nopporn); Intharathep, P (Intharathep, Pathumwadee);
Sompornpisut, P (Sompornpisut, Pornthep); Poovorawan, Y (Poovorawan, Yong); Hannongbua, S (Hannongbua, Supot)
Title: Molecular insights into human receptor binding to 2009 H1N1 influenza A hemagglutinin
Source: MONATSHEFTE FUR CHEMIE, 141 (7): 801-807 JUL 2010
Language: English
Author Keywords: Computational chemistry; Hydrogen bonds; Molecular modelling; Sialopentasaccharide receptor; Per residue
interactions; Molecular dynamics simulations
KeyWords Plus: SIALIC-ACID; RESPIRATORY-TRACT; GLYCAN TOPOLOGY; FORCE-FIELD; VIRUS; SWINE;
SPECIFICITY; CELLS; DYNAMICS; ANALOGS
Abstract: The current pandemic of the viral 2009 H1N1 influenza and its sustained human-human transmission has raised global
concern for human health. The binding of the viral glycoprotein hemagglutinin (HA) and the human alpha-2,6-linked
sialopentasaccharide (SIA-2,6-GAL) host cell receptor is a critical step in the viral replication cycle. Here, the complex structure
of the 2009 H1N1 HA bound to the SIA-2,6-GAL sialopentasaccharide receptor was constructed by using homology modeling and
molecular dynamic simulations. The receptor was found to fit very well within the HA binding pocket and formed hydrogen bonds
with the residues of the 130-loop, 190-helix, and 220-loop. Most receptor binding residues play a significant role in stabilizing
the protein-receptor complex with major contributions being provided by V135, T136, A137, K222, and Q226. The results are
similar to the human SIA-2,6-GAL sialopentasaccharide receptor binding to H1 HA subtype, but are slightly different from those
of H3, H5, and H9 HAs.
Addresses: [Rungrotmongkol, Thanyada; Malaisree, Maturos; Decha, Panita; Kaiyawet, Nopporn; Intharathep, Pathumwadee;
Sompornpisut, Pornthep; Hannongbua, Supot] Chulalongkorn Univ, Computat Chem Unit Cell, Dept Chem, Fac Sci, Bangkok
10330, Thailand; [Nunthaboot, Nadtanet] Mahasarakham Univ, Dept Chem, Fac Sci, Maha Sarakham 44150, Thailand;
[Rungrotmongkol, Thanyada] Chulalongkorn Univ, Ctr Innovat Nanotechnol, Bangkok 10330, Thailand; [Poovorawan, Yong]
Chulalongkorn Univ, Ctr Excellence Clin Virol, Fac Med, Bangkok 10330, Thailand; [Hannongbua, Supot] Chulalongkorn Univ,
Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Hannongbua, S, Chulalongkorn Univ, Computat Chem Unit Cell, Dept Chem, Fac Sci, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
MRG5180298
TRG5280035
Commission Higher Education (CHE)
This work was financially supported by the Thailand Research Fund (TRF) and the Commission Higher Education (CHE). N.N.
(Grant No. MRG5180298) and T. R. (Grant No. TRG5280035) acknowledge the funding for New Research from TRF. The
authors are grateful for the partial support by the Rachadapisek Sompoch Endowment Fund "Emerging Health Risk Cluster'',
Chulalongkorn University. The Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn
University, is acknowledged.
23/11/2553 18:37
Times Cited: 1
Publisher: SPRINGER WIEN
Publisher Address: SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA
ISSN: 0026-9247
DOI: 10.1007/s00706-010-0319-z
29-char Source Abbrev.: MONATSH CHEM
ISO Source Abbrev.: Mon. Chem.
ISI Document Delivery No.: 622XD
Record 106 of 271
Author(s): Chanprasartsuk, OO (Chanprasartsuk, On-Ong); Prakitchaiwattana, C (Prakitchaiwattana, Cheunjit); Sanguandeekul, R
(Sanguandeekul, Romanee); Fleet, GH (Fleet, Graham H.)
Title: Autochthonous yeasts associated with mature pineapple fruits, freshly crushed juice and their ferments; and the chemical
changes during natural fermentation
Source: BIORESOURCE TECHNOLOGY, 101 (19): 7500-7509 OCT 2010
Language: English
Author Keywords: Autochthonous yeasts; Denaturing gradient gel electrophoresis; Fermentation; Pineapple
KeyWords Plus: INTERNAL TRANSCRIBED SPACERS; RIBOSOMAL-RNA GENE; RFLP ANALYSIS; WINE;
IDENTIFICATION; ECOLOGY; PERFORMANCE; DYNAMICS; REGION; CIDER
Abstract: This study investigated autochthonous yeasts and their functions in the spontaneous fermentation of freshly crushed
pineapple juice samples collected from two different areas of both Thailand and Australia. Hanseniaspora uvarum and Pichia
guilliermondii were the main yeast species observed on the fruit skins of Thai samples, and also in the fresh juice and ferments of
all samples from both countries. P. guilliermondii was consistently present as the dominant species during the early stage of the
fermentation, whereas H. uvarum became more prevalent towards the end of the six-day fermentation period, with populations
increasing from an initial level of similar to 5 log CFU/mL to similar to 8 log CFU/mL at the end of fermentation. The ethanol
levels in samples from both regions of Thailand were maximal at 2 days of fermentation, reaching similar to 1 to 2% (v/v) but
then declined thereafter. In contrast, in the Australian samples ethanol levels continued to increase over the entire six-day
fermentation period and reached similar to 3 to 4% (v/v). A significant decrease in citric acid and increase in lactic acid levels
were observed throughout the fermentation period in the samples from Thailand, but not in those from Australia where the
different acid contents (and pH) were relatively stable. The other wine yeasts and, in particular, Saccharomyces yeasts, were not
found in any of sampled fermentation systems that is apparently different from the other fruit juices. These findings suggested that
the freshly crushed pineapple juice may possibly have some effects on the other autochthonous yeasts having important role in
alcoholic fermentation. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Chanprasartsuk, On-Ong; Prakitchaiwattana, Cheunjit; Sanguandeekul, Romanee] Chulalongkorn Univ, Fac Sci, Dept
Food Technol, Bangkok 10330, Thailand; [Fleet, Graham H.] Univ New S Wales, Sch Chem Sci & Engn, Sydney, NSW 2052,
Australia
Reprint Address: Prakitchaiwattana, C, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Royal Thai Government
CU Graduate School Thesis Grant
We are grateful to Food Science, School of Chemical Sciences and Engineering, The University of New South Wales, Sydney,
NSW for providing research facilities when conducting research in Australia. We are also grateful to Miss Padchara Sawatdiruk
and Miss Patcharee Pattharathadakiat for their helpful assistance and cooperation. Additionally, we are thankful to Royal Thai
Government and CU Graduate School Thesis Grant, Chulalongkorn University for financial support, and the Publication
Counselling Unit, Faculty of Science, Chulalongkorn University.
Times Cited: 0
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ISSN: 0960-8524
DOI: 10.1016/j.biortech.2010.04.047
29-char Source Abbrev.: BIORESOURCE TECHNOL
ISO Source Abbrev.: Bioresour. Technol.
Subject Category: Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels
ISI Document Delivery No.: 625KP
Record 107 of 271
Author(s): Suttinun, O (Suttinun, Oramas); Muller, R (Mueller, Rudolf); Luepromchai, E (Luepromchai, Ekawan)
Title: Cometabolic Degradation of Trichloroethene by Rhodococcus sp Strain L4 Immobilized on Plant Materials Rich in
Essential Oils
Source: APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 76 (14): 4684-4690 JUL 2010
Language: English
KeyWords Plus: DEGRADING BACTERIA; TOLUENE DIOXYGENASE; PSEUDOMONAS-PUTIDA; OXIDATION; TCE;
BIOTRANSFORMATION; ISOPROPYLBENZENE; IDENTIFICATION; INACTIVATION; SUBSTRATE
Abstract: The cometabolic degradation of trichloroethene (TCE) by Rhodococcus sp. L4 was limited by the loss of enzyme
activity during TCE transformation. This problem was overcome by repeated addition of inducing substrates, such as cumene,
limonene, or cumin aldehyde, to the cells. Alternatively, Rhodococcus sp. L4 was immobilized on plant materials which contain
those inducers in their essential oils. Cumin seeds were the most suitable immobilizing material, and the immobilized cells
tolerated up to 68 mu M TCE and degraded TCE continuously. The activity of immobilized cells, which had been inactivated
partially during TCE degradation, could be reactivated by incubation in mineral salts medium without TCE. These findings
demonstrate that immobilization of Rhodococcus sp. L4 on plant materials rich in essential oils is a promising method for efficient
cometabolic degradation of TCE.
Addresses: [Luepromchai, Ekawan] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok 10330, Thailand; [Suttinun, Oramas]
Chulalongkorn Univ, Grad Sch, Int Postgrad Programs Environm Management, Bangkok 10330, Thailand; [Suttinun, Oramas;
Luepromchai, Ekawan] Chulalongkorn Univ, NCE EHWM, Bangkok 10330, Thailand; [Mueller, Rudolf] Tech Univ Hamburg, Inst
Tech Biocatalysis, Hamburg, Germany
Reprint Address: Luepromchai, E, Chulalongkorn Univ, Fac Sci, Dept Microbiol, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Center of Excellence for Environmental and Hazardous Waste Management (NCE-EHWM)
90th Anniversary of Chulalongkorn University
International Foundation for Science, Stockholm, Sweden
Organization for the Prohibition of Chemical Weapons, The Hague, Netherlands
Funding for this research was provided by the National Center of Excellence for Environmental and Hazardous Waste
Management (NCE-EHWM), by research funds from the Faculty of Science, Chulalongkorn University, and by the 90th
Anniversary of Chulalongkorn University Fund, Chulalongkorn University. This research was also supported by the International
Foundation for Science, Stockholm, Sweden, and the Organization for the Prohibition of Chemical Weapons, The Hague,
Netherlands, through a grant to E. Luepromchai.
Times Cited: 0
Publisher: AMER SOC MICROBIOLOGY
Publisher Address: 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
ISSN: 0099-2240
DOI: 10.1128/AEM.03036-09
29-char Source Abbrev.: APPL ENVIRON MICROBIOL
ISO Source Abbrev.: Appl. Environ. Microbiol.
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Subject Category: Biotechnology & Applied Microbiology; Microbiology
ISI Document Delivery No.: 621UX
Record 108 of 271
Author(s): Boonserm, P (Boonserm, Petarpa); Visser, M (Visser, Matt)
Title: Analytic bounds on transmission probabilities
Source: ANNALS OF PHYSICS, 325 (7): 1328-1339 Sp. Iss. SI JUL 2010
Language: English
Author Keywords: Transmission; Reflection; Bogoliubov coefficients; Analytic bounds
KeyWords Plus: ONE-DIMENSIONAL SCATTERING; EQUATIONS; VACUUM
Abstract: We develop some new analytic bounds on transmission probabilities (and the related reflection probabilities and
Bogoliubov coefficients) for generic one-dimensional scattering problems. To do so we rewrite the Schrodinger equation for
some complicated potential whose properties we are trying to investigate in terms of some simpler potential whose properties are
assumed known, plus a (possibly large) "shift" in the potential. Doing so permits us to extract considerable useful information
without having to exactly solve the full scattering problem. (C) 2010 Elsevier Inc. All rights reserved.
Addresses: [Boonserm, Petarpa] Chulalongkorn Univ, Dept Math, Fac Sci, Bangkok 10330, Thailand; [Visser, Matt] Victoria
Univ Wellington, Sch Math Stat & Operat Res, Wellington, New Zealand
Reprint Address: Boonserm, P, Chulalongkorn Univ, Dept Math, Fac Sci, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Marsden Fund
Royal Government of Thailand
This research was supported by the Marsden Fund administered by the Royal Society of New Zealand. PB was additionally
supported by a scholarship from the Royal Government of Thailand.
Times Cited: 0
ISSN: 0003-4916
DOI: 10.1016/j.aop.2010.02.005
29-char Source Abbrev.: ANN PHYS N Y
ISO Source Abbrev.: Ann. Phys.
Subject Category: Physics, Multidisciplinary
ISI Document Delivery No.: 627BJ
Record 109 of 271
Author(s): Sangjan, S (Sangjan, Suntree); Traiphol, N (Traiphol, Nisanart); Traiphol, R (Traiphol, Rakchart)
Title: Improvement of ultrathin polystyrene film stability by addition of poly(styrene-stat-chloromethylstyrene) copolymer: An
atomic force microscopy study
Source: THIN SOLID FILMS, 518 (17): 4879-4883 JUN 30 2010
Language: English
Author Keywords: Thin films; Polystyrene; Interface structure; Additive; Dewetting; Atomic force microscopy
KeyWords Plus: THIN POLYMER-FILMS; DEWETTING DYNAMICS; BLOCK-COPOLYMER; LIQUID-FILMS; BEHAVIOR;
INSTABILITIES; ADSORPTION; INTERFACES; SURFACES; BLENDS
Abstract: A method to improve the stability of ultrathin polystyrene (PS) films on SiOx/Si substrate is introduced. In this method,
interfacial interactions between PS film and substrate are enhanced by addition of poly (styrene-stat-chloromethylstyrene(CIMS))
copolymer containing 5 mol% of CIMS group. The resulting slight structural modification of the copolymer does not cause phase
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separation in the polymer blend. On the other hand, the existence of polar CIMS groups provides anchoring sites on the polar SiOx
surface via dipolar interactions. In this study, ratios of the copolymers are varied from 0 to 40 wt.% in the thin films resulting in a
systematic increase of the interfacial interactions. The dewetting behaviors of all films subjected to the same annealing conditions
are explored via atomic force microscopy. The analyses of root mean square roughness and dewetting area as a function of
annealing time and copolymer ratio provide information about the film stability. Our results indicate that blending small quantity
of the copolymer with PS significantly increases the stability of ultrathin films. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Sangjan, Suntree; Traiphol, Nisanart] Chulalongkorn Univ, Res Unit Adv Ceram, Dept Mat Sci, Fac Sci, Bangkok
10330, Thailand; [Traiphol, Nisanart] Chulalongkorn Univ, Res Unit Adv Ceram & Polymer Mat, Natl Ctr Excellence Petr
Petrochem & Adv Mat, Bangkok 10330, Thailand; [Traiphol, Rakchart] Naresuan Univ, Lab Adv Polymers & Nanomat, Dept
Chem, Phitsanulok 65000, Thailand; [Traiphol, Rakchart] Naresuan Univ, Ctr Innovat Chem, Fac Sci, Phitsanulok 65000,
Thailand; [Traiphol, Rakchart] Mahidol Univ, Fac Sci, NANOTEC Ctr Excellence, Bangkok 10400, Thailand
Reprint Address: Traiphol, N, Chulalongkorn Univ, Res Unit Adv Ceram, Dept Mat Sci, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Office of the Higher Education Commission
National Center of Excellence for Petroleum, Petrochemical, and Advanced Materials
NANOTEC Center of Excellence at Mahidol University
Center for Innovation in Chemistry
S. Sangjan thanks the Office of the Higher Education Commission for supporting her Ph.D. scholarship under the program
Strategic Scholarships for Frontier Research Network. This research is partially supported by the National Center of Excellence
for Petroleum, Petrochemical, and Advanced Materials, NANOTEC Center of Excellence at Mahidol University and Center for
Innovation in Chemistry.
Times Cited: 0
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2010.03.033
29-char Source Abbrev.: THIN SOLID FILMS
ISO Source Abbrev.: Thin Solid Films
Subject Category: Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics,
Condensed Matter
ISI Document Delivery No.: 621HH
Record 110 of 271
Author(s): Wanno, B (Wanno, Banchob); Ruangpornvisuti, V (Ruangpornvisuti, Vithaya)
Title: Molecular structures and electronic properties of helical thiophene carbon-sulfur oligomers, H-2(C2S) (n) C2H2 (n=1-20)
Source: STRUCTURAL CHEMISTRY, 21 (4): 715-725 AUG 2010
Language: English
Author Keywords: Thiophene carbon-sulfur; Helical structure; Chiral oligomer; Electronic properties; Density functional theory
KeyWords Plus: CROSS-CONJUGATED OLIGOTHIOPHENES; DENSITY-FUNCTIONAL THEORY;
BETA-OLIGOTHIOPHENES; GAS-PHASE; ASYMMETRIC-SYNTHESIS; OLEFIN METATHESIS; ISOMERS; DFT;
ELECTROPHILICITY; TRANSFORMATIONS
Abstract: Structure optimizations of the thiophene carbon-sulfur H-2(C2S) (n) C2H2 (n = 1-20) were carried out using density
functional theory calculations at the B3LYP/6-31G(d) level. The B3LYP/6-31G(d) geometrical data for heptamer H-2(C2S)
(7)C2H2 and undecamer H-2(C2S)(11)C2H2 are in good agreement with the X-ray crystallographic data for the helical (C2S)(n)
beta-heptathiophene and beta-undecathiophene, respectively. Structural and electronic properties of helical oligothiophenes
obtained at the B3LYP/6-311++G(d,p)//B3LYP/6-31G(d) level are reported. The strain energy formula of n oligothiophenes as a
linear function of their molecular length was obtained.
Addresses: [Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Ruangpornvisuti,
Vithaya] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Wanno, Banchob] Mahasarakham Univ,
Fac Sci, Dept Chem, Maha Sarakham 44150, Thailand
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Reprint Address: Ruangpornvisuti, V, Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials (NCE-PPAM)
National Nanotechnology Center (NANOTEC)
This study was partially supported by the Thailand Research Fund (TRF) and the National Center of Excellence for Petroleum,
Petrochemicals and Advanced Materials (NCE-PPAM), and also the National Nanotechnology Center (NANOTEC).
Times Cited: 0
Publisher: SPRINGER/PLENUM PUBLISHERS
ISSN: 1040-0400
DOI: 10.1007/s11224-010-9601-2
29-char Source Abbrev.: STRUCT CHEM
ISO Source Abbrev.: Struct. Chem.
Subject Category: Chemistry, Multidisciplinary; Chemistry, Physical; Crystallography
ISI Document Delivery No.: 621SW
Record 111 of 271
Author(s): Ishihara, T (Ishihara, Tatsumi); Armonat, P (Armonat, Phawachalotorn); Kadowaki, R (Kadowaki, Rie);
Sanguanruang, O (Sanguanruang, Oravan)
Title: Solid Oxide Amperometric CO Sensor for Monitoring Exhaust Gas from Water Heater
Source: SENSORS AND MATERIALS, 22 (4): 183-192 Sp. Iss. SI 2010
Language: English
Author Keywords: amperometric sensor; CO sensor; LaGaO3 electrolyte
KeyWords Plus: LAGAO3-BASED OXIDE; ELECTROLYTE; HYDROCARBON; TEMPERATURE; SENSITIVITY;
PERFORMANCE; CONDUCTOR; ZIRCONIA
Abstract: An amperometric CO sensor using a solid oxide electrolyte was studied and it was found that the oxygen pumping
current increased with increasing CO concentration when using Au(10 wt%)/In1.9Sn0.1O3 and RuO2(10 wt%)/La0.6Sr0.4CoO3
as the electrode catalysts and La0.9Sr0.1Ga0.8Mg0.2O3 as the electrolyte. Mixed potentials are also observed on this sensor
upon exposure to CO, and so changes in oxygen pumping current may be caused by the mixed potentials formed upon exposure to
CO. Substitution of Ga in the LaGaO3 electrolyte with Fe is effective for increasing the sensitivity, and this sensor is almost
insensitive to CO2 and CH4. As a result, it is expected that this sensor can be used for the detection of CO in exhaust gas from a
small gas water heater without a flue line.
Addresses: [Ishihara, Tatsumi; Kadowaki, Rie] Kyushu Univ, Dept Appl Chem, Fac Engn, Nishi Ku, Fukuoka 8190395, Japan;
[Armonat, Phawachalotorn; Sanguanruang, Oravan] Chulalongkorn Univ, Sch Chem, Fac Sci, Bangkok, Thailand
Reprint Address: Ishihara, T, Kyushu Univ, Dept Appl Chem, Fac Engn, Nishi Ku, Motooka 744, Fukuoka 8190395, Japan.
Times Cited: 1
Publisher: MYU
Publisher Address: 1-23-3-303 SENDAGI, TOKYO, BUNKYO-KU 113-0022, JAPAN
ISSN: 0914-4935
29-char Source Abbrev.: SENSOR MATER
ISO Source Abbrev.: Sens. Mater.
Subject Category: Instruments & Instrumentation; Materials Science, Multidisciplinary
ISI Document Delivery No.: 623SG
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Record 112 of 271
Author(s): Leelaruji, K (Leelaruji, Kritsana); Hunsom, M (Hunsom, Mali)
Title: Alcohol reduction-mediated preparation of a nano-scale Pt/C electrocatalyst for the oxygen reduction reaction in PEM fuel
cells
Source: RENEWABLE ENERGY, 35 (11): 2422-2430 NOV 2010
Language: English
Author Keywords: Nano-scale electrocatalyst; Platinum; Oxygen reduction reaction; Alcohol reduction
KeyWords Plus: CARBON; CATALYSTS
Abstract: A nano-scale Pt/C electrocatalyst for oxygen reduction in PEM fuel cells was prepared by alcohol-mediated reduction
of the PtCl62- ion complex on the carbon Vulcan XC-72. The effects of various parameters, including the types of precursor and
reducing agent and their concentrations, the initial solution pH and the reaction time, were explored. The preliminary results
indicated that the electrocatalyst prepared using ammonium hexachloroplatinate ((NH4)(2)PtCl6) as the Pt2+ source provided a
similar catalytic efficiency as that prepared from hexachloroplatinic acid (H2PtCl6). The nano-scale Pt/C electrocatalyst
prepared using methanol (CH3OH) as a reducing agent provided the smallest sized platinum particles with a uniform distribution
in the nanometer range, a good particle dispersion and a high Pt content compared with that prepared using ethanol (C2H5OH) or
2-propanol (C3H7OH). The electrocatalyst prepared in an acidic solution yielded smaller sized platinum particles and a higher Pt
content than that prepared in a basic solution. In addition, the concentration of the reducing agent and reaction time slightly
affected both the Pt particle size and the Pt yield of the obtained electrocatalyst. Under apparent optimal conditions, the nano-scale
Pt/C electrocatalyst had an electrochemical surface area of similar to 39.7 m(2)/g, which was similar to 1.9-fold higher than that
of the commercial one. The performance of the electrocatalyst was also tested in a single PEM fuel cell in a H-2/O-2 atmosphere
where compared to a commercial electrode a lower activation loss but higher ohmic loss was observed. (C) 2010 Elsevier Ltd.
All rights reserved.
Addresses: [Hunsom, Mali] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Leelaruji, Kritsana;
Hunsom, Mali] Chulalongkorn Univ, Fuel Res Ctr, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Hunsom, M, Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Petroleum and Petrochemical Technology Consortium, Department of Chemical Technology
TKK2555
The authors would like to thank the Center for Petroleum, Petrochemicals, and Advanced Materials and the Petroleum and
Petrochemical Technology Consortium, Department of Chemical Technology, Faculty of Science, Chulalongkorn University for
financial and the Thai Government Stimulus Package 2 (TKK2555), under the Project for Establishment of Comprehensive
Center for Innovative Food, Health Products and Agriculture for facility support and the Publication Counseling Unit (PCU) of
the Faculty of Science, Chulalongkorn University and Dr. Robert DJ. Butcher for comments, suggestions and checking the
grammar.
Times Cited: 0
ISSN: 0960-1481
DOI: 10.1016/j.renene.2010.02.019
ISI Document Delivery No.: 620LL
Record 113 of 271
Author(s): Thaicharoen, P (Thaicharoen, Pipat); Thamyongkit, P (Thamyongkit, Patchanita); Poompradub, S (Poompradub,
Sirilux)
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Title: Thiosalicylic acid as a devulcanizing agent for mechano-chemical devulcanization
Source: KOREAN JOURNAL OF CHEMICAL ENGINEERING, 27 (4): 1177-1183 JUL 2010
Language: English
Author Keywords: Devulcanized Rubber; Devulcanization; Devulcanizing Agent; Vulcanization; Mechano-chemical
Devulcanization
KeyWords Plus: SUPERCRITICAL CARBON-DIOXIDE; VULCANIZED NATURAL-RUBBER; GROUND TIRE RUBBER;
ULTRASONIC DEVULCANIZATION; ISOPRENE RUBBER; DESULFURIZATION; DEGRADATION; TECHNOLOGY; GRT
Abstract: A mechano-chemical devulcanization process for vulcanized natural rubber (NV) was investigated. Thiosalicylic acid
was used as a test devulcanizing agent in comparison to diphenyl disulfide as the reference. The optimum condition for
devulcanization of NR vulcanizates (NVs) was found to be grinding of the NV and subsequent mixing with a selected
devulcanizing agent at 140 degrees C for 30 min. The degree of devulcanization was indicated by using sol-gel fractions of the
devulcanized rubber (DVR). Revulcanized rubber was made by using virgin natural rubber (NR) containing DVR at different
ratios. The tensile strength of the DVR/NV composite, after revulcanization, decreased by 5-10%, while the elongation at brake
was improved by 5-10% at a DVR content of 5-15%. Devulcanization of industrial truck tires, as a typical sample of industrial
products, was also demonstrated for the practical application of this technique.
Addresses: [Poompradub, Sirilux] Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand; [Thaicharoen,
Pipat] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci, Bangkok 10330, Thailand; [Thamyongkit, Patchanita]
Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Thamyongkit, Patchanita; Poompradub, Sirilux]
Chulalongkorn Univ, Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Poompradub, S, Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Program of Petrochemistry and Polymer Science
Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials (NCE-PPAM)
CU Graduate School, Chulalongkorn University
The authors gratefully acknowledge the funding support from the Program of Petrochemistry and Polymer Science, the Center of
Excellence for Petroleum, Petrochemicals, and Advanced Materials (NCE-PPAM), and the CU Graduate School Thesis Grant,
Times Cited: 0
Publisher: SPRINGER
ISSN: 0256-1115
DOI: 10.1007/s11814-010-0168-9
29-char Source Abbrev.: KOREAN J CHEM ENG
ISO Source Abbrev.: Korean J. Chem. Eng.
Subject Category: Chemistry, Multidisciplinary; Engineering, Chemical
ISI Document Delivery No.: 622MC
Record 114 of 271
Author(s): Wanbayor, R (Wanbayor, Raina); Ruangpornvisuti, V (Ruangpornvisuti, Vithaya)
Title: Adsorption of di-, tri- and polyatomic gases on the anatase TiO2 (001) and (101) surfaces and their adsorption abilities
Source: JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 952 (1-3): 103-108 JUL 30 2010
Language: English
Author Keywords: Adsorption; Anatase; TiO2; Gases; DFT
KeyWords Plus: DENSITY-FUNCTIONAL THEORY; NANOTUBE-ARRAYS; TITANIA NANOTUBES; SOLAR-CELLS;
THIN-FILMS; DFT CALCULATIONS; CO OXIDATION; WATER LAYERS; HYDROGEN; DYE
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Abstract: The adsorption energies Delta E-ads, of diatomic (O-2, N-2, H-2, CO and NO), triatomic (H2O, H2S, N2O, CO2, NO2
and SO2) and polyatomic (NH3, C2H2, C2H4 and CH4) gases on the anatase TiO2 (0 0 1) and (1 0 1) surfaces were obtained by
density functional method. The strongest adsorption energies, computed using the B3LYP/6-31G(d) with BSSE correction, of
diatomic, triatomic and polyatomic gases on the anatase TiO2 are Delta E-ads (CO) = -8.69, Delta E-ads(H2O) = -9.77 and Delta
E-ads(NH3) = -21.19 kcal/mol for (0 0 1) surface and Delta E-ads (O-2) = -99.71, Delta E-ads(S2O) = -27.59 and Delta
E-ads(NH3) = -30.78 kcal/mol for (1 0 1) surface, respectively. All the adsorptions of studied gases on the anatase TiO2 (0 0 1)
and (1 0 1) surfaces compared with experiments and other methods are reported. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Wanbayor, Raina; Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Funding Agency
Grant Number
PHD/0244/2549
National Science and Technology Development Agency
Center for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University, Bangkok,
Thailand
The Royal Golden Jubilee (RGJ) grant, number PHD/0244/2549 supported by TRF to R.W. is acknowledged. We also thank the
Thailand Research Fund (TRF), the National Nanotechnology Center (NANOTEC), National Science and Technology
Development Agency, for partial support of this work. The Center for Petroleum, Petrochemicals and Advanced Materials,
Chulalongkorn University, Bangkok, Thailand is also acknowledged for partly financial support.
Times Cited: 0
ISSN: 0166-1280
DOI: 10.1016/j.theochem.2010.04.032
29-char Source Abbrev.: J MOL STRUC-THEOCHEM
ISO Source Abbrev.: Theochem-J. Mol. Struct.
ISI Document Delivery No.: 620ZN
Record 115 of 271
Author(s): Burikham, P (Burikham, P.); Hirunsirisawat, E (Hirunsirisawat, E.); Pinkanjanarod, S (Pinkanjanarod, S.)
Title: Thermodynamic properties of holographic multiquark and the multiquark star
Source: JOURNAL OF HIGH ENERGY PHYSICS, (6): Art. No. 040 JUN 2010
Language: English
Author Keywords: Brane Dynamics in Gauge Theories; AdS-CFT Correspondence
KeyWords Plus: DE-SITTER SUPERGRAVITY; N GAUGE-THEORY; FIELD-THEORIES; BARYONS; QCD
Abstract: We study thermodynamic properties of the multiquark nuclear matter. The dependence of the equation of state on the
colour charges is explored both analytically and numerically in the limits where the baryon density is small and large at fixed
temperature between the gluon deconfinement and chiral symmetry restoration. The gravitational stability of the hypothetical
multiquark stars are discussed using the Tolman-Oppenheimer-Volkoff equation. Since the equations of state of the multiquarks can
be well approximated by different power laws for small and large density, the content of the multiquark stars has the core and
crust structure. We found that most of the mass of the star comes from the crust region where the density is relatively small. The
mass limit of the multiquark star is determined as well as its relation to the star radius. For typical energy density scale of 10
GeV/fm(3), the converging mass and radius of the hypothetical multiquark star in the limit of large central density are
approximately 2.6 - 3.9 solar mass and 15-27 km. The adiabatic index and sound speed distributions of the multiquark matter in
the star are also calculated and discussed. The sound speed never exceeds the speed of light and the multiquark matters are thus
compressible even at high density and pressure.
Addresses: [Burikham, P.; Hirunsirisawat, E.; Pinkanjanarod, S.] Chulalongkorn Univ, Fac Sci, Dept Phys, Theoret High Energy
Phys & Cosmol Grp, Bangkok 10330, Thailand; [Burikham, P.] Minist Educ, Thailand Ctr Excellence Phys, Bangkok, Thailand;
[Pinkanjanarod, S.] Kasetsart Univ, Fac Sci, Dept Phys, Bangkok 10900, Thailand
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Reprint Address: Burikham, P, Chulalongkorn Univ, Fac Sci, Dept Phys, Theoret High Energy Phys & Cosmol Grp, Bangkok
10330, Thailand.
Funding Agency
Grant Number
Commission on Higher Education (CHE), Thailand MRG5180227
P.B. is supported in part by the Thailand Research Fund (TRF) and the Commission on Higher Education (CHE) under grant
MRG5180227. E.H. is supported by the Commission on Higher Education (CHE), Thailand under the program Strategic
Scholarships for Frontier Research Network for the Ph.D. Program Thai Doctoral Degree for this research.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1126-6708
Article Number: 040
DOI: 10.1007/JHEP06(2010)040
29-char Source Abbrev.: J HIGH ENERGY PHYS
ISO Source Abbrev.: J. High Energy Phys.
Subject Category: Physics, Particles & Fields
ISI Document Delivery No.: 622AP
Record 116 of 271
Author(s): Poommarinvarakul, S (Poommarinvarakul, Sukhum); Tattiyakul, J (Tattiyakul, Jirarat); Muangnapoh, C (Muangnapoh,
Chirakarn)
Title: Isolation and Rheological Properties of Tamarind Seed Polysaccharide from Tamarind Kernel Powder Using Protease
Enzyme and High-Intensity Ultrasound
Source: JOURNAL OF FOOD SCIENCE, 75 (5): E253-E260 JUN-JUL 2010
Language: English
Author Keywords: high-intensity ultrasound; polysaccharide purity; protease; tamarind kernel powder; tamarind seed
polysaccharide
KeyWords Plus: RICE STARCH ISOLATION; XYLOGLUCAN; DIGESTION
Abstract: The effectiveness of using protease and combinations of protease and high-intensity ultrasound for high-purity,
high-yield tamarind seed polysaccharide (TSP) production was investigated. Tamarind kernel powder (TKP) suspension was
treated with protease alone at 0.16, 0.48, and 0.80 units/mL and with protease-ultrasound combinations over 3 different orders of
sequence (before, simultaneous with, and after protease digestion) using combinations of 0.48 units/mL protease and high-intensity
ultrasound at 25% and 50% amplitude for 15 and 30 min. The long protease digestion time could produce high-purity isolated
TSP, but the polysaccharide yields were lower. The polysaccharide purity and yield were highly improved, even at a shorter
protease digestion time, when the protease treatment was combined with high-intensity ultrasound. The increased amplitude level
and sonication time decreased the average molecular weight of the polysaccharide. The rheological properties of the TKP and the
isolated TSP, from nondestructive oscillatory measurements, demonstrated that the latter present a viscoelastic solution. The
decreasing of protein content resulted in better elasticity of the solution. The power law model could be used to fit the down curve
between shear rate and shear stress data. The consistency coefficient (K) increased while the flow behavior index decreased with
the increased purity of the polysaccharide as a result of increasing increased digestion time, enzyme concentration, sonication
power, and sonication time.
Addresses: [Poommarinvarakul, Sukhum; Muangnapoh, Chirakarn] Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Bangkok
10330, Thailand; [Tattiyakul, Jirarat] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand
Reprint Address: Muangnapoh, C, Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
East Asiatic Public Co. Ltd.
Graduate School, Chulalongkorn Univ.
The authors would like to thank GM Ichihara Co. Ltd. (Thailand) for providing the TKP raw material and East Asiatic Public
Co. Ltd. for supporting the Esperase(R) R 8.0L enzyme. This research was carried out under the financial support of Graduate
School, Chulalongkorn Univ.
Times Cited: 0
ISSN: 0022-1147
DOI: 10.1111/j.1750-3841.2010.01613.x
29-char Source Abbrev.: J FOOD SCI
ISO Source Abbrev.: J. Food Sci.
ISI Document Delivery No.: 623KX
Record 117 of 271
Author(s): Prapavorarat, A (Prapavorarat, Adisak); Vatanavicharn, T (Vatanavicharn, Tipachai); Soderhall, K (Soderhall,
Kenneth); Tassanakajon, A (Tassanakajon, Anchalee)
Title: A Novel Viral Responsive Protein Is Involved in Hemocyte Homeostasis in the Black Tiger Shrimp, Penaeus monodon
Source: JOURNAL OF BIOLOGICAL CHEMISTRY, 285 (28): 21467-21477 JUL 9 2010
Language: English
KeyWords Plus: WHITE-SPOT SYNDROME; SYNDROME VIRUS; PACIFASTACUS-LENIUSCULUS; HEMATOPOIETICTISSUE; INNATE IMMUNITY; IN-VITRO; APOPTOSIS; CRAYFISH; INFECTION; INVITRO
Abstract: A novel viral responsive protein, namely hemocyte homeostasis-associated protein (HHAP), was characterized for its
role in the response of shrimp to white spot syndrome virus infection. The full-length cDNAs of HHAP from the black tiger shrimp
(PmHHAP), Penaeus monodon, and the fresh water crayfish (PlHHAP), Pacifastacus leniusculus, were obtained and showed high
sequence identity to a hypothetical protein from various organisms, with the highest identity to the hypothetical protein
TcasGA2_TC006773 from the red flour beetle, Tribolium castaneum (54% amino acid sequence identity). Transcripts of
PmHHAP were expressed in various shrimp tissues with the highest expression in hematopoietic tissue, whereas the transcripts of
PlHHAP were found in the hematopoietic and nerve tissues. Upon white spot syndrome virus infection, a high up-regulation level
of shrimp hemocytic HHAP mRNA and protein was observed by real-time reverse transcription-PCR and immunofluorescence
microscopy, respectively. Gene silencing of PmHHAP by RNA interference resulted in a significant decrease in the number of
circulating hemocytes and 100% shrimp mortality within 30 h of the double-stranded PmHHAP RNA injection (but not in control
shrimp), indicating that HHAP is essential for shrimp survival. Interestingly, severe damage of hemocytes was observed in vivo in
the PmHHAP knockdown shrimp and in vitro in shrimp primary hemocyte cell culture, suggesting that PmHHAP plays an
important role in hemocyte homeostasis. Thus, it is speculated that the up-regulation of PmHHAP is an important mechanism to
control circulating hemocyte levels in crustaceans during viral infection.
Addresses: [Tassanakajon, Anchalee] Chulalongkorn Univ, Fac Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom Shrimp,
Bangkok 10330, Thailand; [Soderhall, Kenneth] Uppsala Univ, Dept Comparat Physiol, S-75236 Uppsala, Sweden
Funding Agency
Grant Number
Thailand National Center for Genetic Engineering and Biotechnology
Royal Golden Jubilee PhD Program, Thailand Research Fund
Thai Government
TKK2555
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This work was supported by grants from The Commission on Higher Education, and the Thailand National Center for Genetic
Engineering and Biotechnology and by a student fellowship (to A. P. and T. V.) from the Royal Golden Jubilee PhD Program,
Thailand Research Fund. This work was also supported by the Thai Government Stimulus Package2 (TKK2555), under the
Project for Establishment of Comprehensive Center for Innovative Food, Health Products, and Agriculture.
Times Cited: 0
Publisher: AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
Publisher Address: 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA
ISSN: 0021-9258
DOI: 10.1074/jbc.M110.130526
29-char Source Abbrev.: J BIOL CHEM
ISO Source Abbrev.: J. Biol. Chem.
ISI Document Delivery No.: 620RD
Record 118 of 271
Author(s): Worrapimphong, K (Worrapimphong, Kobchai); Gajaseni, N (Gajaseni, Nantana); Le Page, C (Le Page, Christophe);
Bousquet, F (Bousquet, Francois)
Title: A companion modeling approach applied to fishery management
Source: ENVIRONMENTAL MODELLING & SOFTWARE, 25 (11): 1334-1344 NOV 2010
Language: English
Author Keywords: Agent-based simulation; Companion modelling approach; Razor clam (Solen regularis); Fishery;
Role-playing games
KeyWords Plus: WATER
Abstract: Don Hoi Lord, a coastal wetland in the upper gulf of Thailand, is famous for the razor clam (Solen regularis), which is
a source of food and income for local fishermen. However, the razor clam population is significantly decreasing so the aim of this
study was to analyze the razor clam fishery and develop a management plan engaging the different stakeholders in collective
discussions. A participatory modelling approach was used, including (a) agent-based modelling (ABM) and (b) role-playing
games (RPG). First, an individual-state distribution model of the razor clam population was designed and calibrated to synthesise
knowledge. Two RPG sessions supported by this biological model were organised to initiate collective learning and promote
discussion among stakeholders. After playing with the baseline scenario showing the actual harvesting situation, discussions led to
the definition of alternative scenarios for clam management such as establishment and rotation of zones closed for harvesting, and
quota systems. These scenarios developed during the RPG sessions were more deeply investigated with an agent-based model that
included fishermen agents and the individual-state distribution model of the razor clam population. Simulations of different
scenarios (reserve, quota and combination of reserve and quota) were produced to enable better informed discussion between
different stakeholders. Stakeholders have acknowledged that management through rotating reserves is not efficient if the duration
of reserves is too short. They have realised that the efficiency of reserves is hard to assess without better data on clam
recruitment. They have also explored another management option which is the quota system. In the final stage, the local
participatory process was endorsed by the incumbent regional policy-making actor. Unfortunately, because of rapid administrative
rotation the project abruptly lost support. This unexpected event emphasises the need for continuous monitoring of all actors
entering and/or leaving the system, which can radically change the interactions among them and, therefore, the whole management
context. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Worrapimphong, Kobchai; Gajaseni, Nantana] Chulalongkorn Univ, Agr Technol Program, Fac Sci, Bangkok 10330,
Thailand; [Worrapimphong, Kobchai; Gajaseni, Nantana; Le Page, Christophe; Bousquet, Francois] Chulalongkorn Univ, Dept
Biol, Fac Sci, Bangkok 10330, Thailand; [Le Page, Christophe; Bousquet, Francois] Cirad, UPR Green, F-34000 Montpellier,
France
Reprint Address: Gajaseni, N, Chulalongkorn Univ, Agr Technol Program, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Biodiversity Research and Training Program (BRT)
Chulalongkorn University graduated school
French Ministry of Foreign affairs
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This research was supported by the Biodiversity Research and Training Program (BRT) and Chulalongkorn University
graduated school and the French Ministry of Foreign affairs (SCAC-French embassy in Bangkok). The authors would like to
acknowledge CUCIRAD ComMod project at Chulalongkorn University and the stakeholders at Don Hoi Lord area. The authors
are grateful to Mr. Jensen Sven for his editing work on a first version of this paper.
Times Cited: 1
ISSN: 1364-8152
DOI: 10.1016/j.envsoft.2010.03.012
29-char Source Abbrev.: ENVIRON MODELL SOFTW
ISO Source Abbrev.: Environ. Modell. Softw.
Subject Category: Computer Science, Interdisciplinary Applications; Engineering, Environmental; Environmental Sciences
ISI Document Delivery No.: 622MA
Record 119 of 271
Author(s): Naivinit, W (Naivinit, W.); Le Page, C (Le Page, C.); Trebuil, G (Trebuil, G.); Gajaseni, N (Gajaseni, N.)
Title: Participatory agent-based modeling and simulation of rice production and labor migrations in Northeast Thailand
Source: ENVIRONMENTAL MODELLING & SOFTWARE, 25 (11): 1345-1358 NOV 2010
Language: English
Author Keywords: Capacity building; Co-learning; Companion modeling; Rainfed lowland rice
KeyWords Plus: LOWLAND RICE
Abstract: Rainfed lowland rice production in lower Northeast Thailand is a complex and adaptive farming activity. Complexity
arises from interconnections between multiple and intertwined processes, affected by harsh climatic and soil conditions, cropping
practices and labor migrations. Having faced a spatially heterogeneous and dynamic environment for centuries, local rice farmers
are very adaptive and are used to adjusting their behavior in unpredictable climatic and economic conditions. Better
understanding is needed to manage the key interactions between labor, land and water use for rice production, especially when
major investments in new water infrastructure are now being considered.
Based on the principles of the iterative and evolving Companion Modeling (ComMod) approach, indigenous and academic
knowledge was integrated in an Agent-Based Model (ABM) co-designed with farmers engaged in different types of farming
practices over a period of three years to create a shared representation of the complex and adaptive social agroecological system
in Ban Mak Mai village, in the south of Ubon Ratchathani province.
The ABM consists of three interacting modules: Water (hydro-climatic processes), Rice, and Household. "Household" is a
rule-based agent; it makes daily decisions based on its available means of production, taking into account the stage of the rice
crop, and water and labor availability. Key decisions made are related to: i) rice nursery establishment, ii) rice transplanting, iii)
rice harvesting, and iv) migration of household members. The spatially explicit model interface represents a virtual rainfed
lowland rice environment as an archetypical toposequence made of upper to lower paddies in a minicatchment farmed by 4
different households, and also includes water bodies and human settlements. Thanks to intensive communication, the participating
farmers, made sure that the ABM adequately represents their rice farming and labor migration management practices. They found
the model useful to deepen their understanding of the interrelations between labor migrations and rice production, which helped to
strengthen their adaptive management ability. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Naivinit, W.] Ubon Rajathanee Univ, Warinchamrap 94190, Ubon Ratchathan, Thailand; [Le Page, C.]
Chulalongkorn Univ, CU Cirad ComMod Project, Bangkok, Thailand; [Gajaseni, N.] Chulalongkorn Univ, Dept Biol, Fac Sci,
Bangkok, Thailand; [Le Page, C.; Trebuil, G.] Cirad, UPR Green, F-34000 Montpellier, France; [Naivinit, W.] Univ Paris Ouest
Nanterre La Def, Paris, France
Reprint Address: Naivinit, W, Ubon Rajathanee Univ, Warinchamrap 94190, Ubon Ratchathan, Thailand.
E-mail Address: [email protected]; [email protected]; [email protected]; [email protected]
Funding Agency
Grant Number
CGIAR
Echel-Eau Project, MAE, France
bilateral Franco-Thai cooperation program in higher education and research
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The research presented here is part of the "PN 25: Companion modeling for resilient water management", a project funded by
the CGIAR Challenge Program on Water and Food, and the Echel-Eau Project, MAE, France. The authors also thank the
bilateral Franco-Thai cooperation program in higher education and research for its support.
Times Cited: 0
ISSN: 1364-8152
DOI: 10.1016/j.envsoft.2010.01.012
29-char Source Abbrev.: ENVIRON MODELL SOFTW
ISO Source Abbrev.: Environ. Modell. Softw.
Subject Category: Computer Science, Interdisciplinary Applications; Engineering, Environmental; Environmental Sciences
ISI Document Delivery No.: 622MA
Record 120 of 271
Author(s): Wichiramala, W (Wichiramala, Wacharin)
Title: Small Convex Covers for Convex Unit Arcs
Source: CHIANG MAI JOURNAL OF SCIENCE, 37 (2): 185-194 MAY 2010
Language: English
Author Keywords: covering by convex sets; convex unit arc; worm problem
Abstract: More than 40 years ago, Leo Moser stated a geometry problem on the plane asking for the least-area set that contains a
congruent copy of every unit arc. The smallest set known, by Norwood and Poole in 2004, has area 0.26043. One interesting
related problem is to focus on a set that contains a congruent copy of every convex unit arc. Such a set is called a cover for convex
unit arcs. The smallest cover known, by Wichiramala in 2005, has area 0.2464. In this work we establish a smaller cover for
convex unit arcs of area less than 0.242.
Addresses: Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand
Reprint Address: Wichiramala, W, Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Research Fund MRG5080128
The author would like to thank John E. Wetzel for his kindful help, Banyat Sroysang for his wonderful assistance in computer
and graphics work, and Krung Sinapiromsaran for his advice in convex programming. This work is partially supported by the
Thailand Research Fund grant number MRG5080128.
Times Cited: 0
Publisher: CHIANG MAI UNIV
Publisher Address: FACULTY SCIENCE, CHIANG MAI, 50200, THAILAND
ISSN: 0125-2526
29-char Source Abbrev.: CHIANG MAI J SCI
ISO Source Abbrev.: Chiang Mai J. Sci.
ISI Document Delivery No.: 621VE
Record 121 of 271
Author(s): Denduangboripant, J (Denduangboripant, Jessada); Setaphan, S (Setaphan, Sornsuda); Suwanprasart, W
(Suwanprasart, Wilasinee); Panha, S (Panha, Somsak)
Title: Determination of Local Tobacco Cultivars Using ISSR Molecular Marker
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Language: English
Author Keywords: inter-simple sequence repeat; ISSR; local cultivar; molecular marker; Thailand; tobacco
KeyWords Plus: FRAGMENT LENGTH POLYMORPHISM; GENETIC DIVERSITY; NICOTIANA-TABACUM; AFLP;
IDENTIFICATION
Abstract: In many tobacco-growing countries, imported and local tobacco cultivars are subject to different regulations in tariff
collection. However, there is a major technical problem how to distinguish between the imported and local cultivars. No standard
method has been established to judge whether the plant has been grown for long time, enough to be legally called "local cultivar".
In this study, an Inter-Simple Sequence Repeat (ISSR) method was introduced to study genetic relationships between imported and
local tobacco cultivars grown in Thailand. Of 20 screened-primers, five ISSR primers showed polymorphic PCR amplified
products suitable for further phylogenetic analysis. Among them, two primers generated specific PCR bands that could separate
local tobacco cultivars (Chorlare 1 and Chorlare 2) from other imported cultivars. Genetic relationship trees revealed four pairs
of tobacco cultivars having bootstrap supporting-values higher than 50%. Among all 13 local tobacco cultivars collected and
examined, only the couple of Chorlare 1 and 2 was distantly separated from the imported cultivars, suggesting their long-history of
being grown in Thailand. The other 11 local cultivars were found to be morphologically and genetically similar to some imported
cultivars and could have originated from them. Therefore, the ISSR technique could be developed and implemented as a simple,
effective molecular marker to recognise early-introduced local tobacco cultivars.
Addresses: [Denduangboripant, Jessada; Panha, Somsak] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand;
[Setaphan, Sornsuda] Chulalongkorn Univ, Fac Sci, Biotechnol Program, Bangkok 10330, Thailand; [Suwanprasart, Wilasinee]
Thailand Tobacco Monopoly, Minist Finance, Dept Res & Dev, Bangkok 10110, Thailand
Reprint Address: Denduangboripant, J, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Tobacco Monopoly
MRG-4680001
Special thanks to Mr. Chiwin Kunalai, Mr. Decha Sutrarashoun and officers of the Tobacco Product Analysis Subdivision,
Thailand Tobacco Monopoly for their great help in organising the expeditions to collect tobacco samples. We thank the Graduate
School of Chulalongkorn University and the Thailand Tobacco Monopoly for financial support for laboratory equipments and
chemicals. We also thank Assistant Professor Simon Wright, Chulalongkorn University, for his kind help on English grammar
correction. The first author was supported by funding from Thailand Research Fund (under the research grant no.
MRG-4680001).
Times Cited: 0
ISSN: 0125-2526
Record 122 of 271
Author(s): Kongkachuichay, P (Kongkachuichay, Paisan); Shitangkoon, A (Shitangkoon, Aroonsiri); Hirunkitmonkon, S
(Hirunkitmonkon, Sakowrath)
Title: Thermodynamics Study of Natural Indigo Adsorption on Silk Yarn
Language: English
Author Keywords: adsorption isotherm; natural indigo; silk dyeing; heat of adsorption; diffusion
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Abstract: Leaves of Indigofera tinctoria were fermented in water. During fermentation, indican in leaves decomposed completely
to indoxyl and was consecutively oxidized to indigo that finally precipitated from the fermented solution. The hybrid-race silk
yarn was then dyed till equilibrium with obtained indigo reduced by Na2S2O4 under alkaline condition and thermodynamics of
dyeing process was investigated. The obtained adsorption isotherm was classified as a Langmuir type. The apparent diffusion
coefficients at 33, 40 and 50 degrees C are 1.23 x 10(-12), 8.26 x 10(-13) and 4.26 x 10(-13) m(2)s(-1), respectively. The heat of
adsorption and the change of entropy are -9.43 kcalmol(-1) and 0.023 kcalmol(-1)K(-1), respectively. In addition, the saturated
dye uptake was found to be decreased when the dyeing temperature was increased. The obtained results are useful for designing
appropriate dyeing equipment and conditions for dyeing silk with natural indigo.
Addresses: [Kongkachuichay, Paisan; Hirunkitmonkon, Sakowrath] Kasetsart Univ, Fac Engn, Dept Chem Engn, Bangkok 10900,
Thailand; [Shitangkoon, Aroonsiri] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Reprint Address: Kongkachuichay, P, Kasetsart Univ, Fac Engn, Dept Chem Engn, Bangkok 10900, Thailand.
Funding Agency
Grant Number
National Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials
This work was supported by the Thailand Research Fund (TRF) and the National Center of Excellence for Petroleum,
Petrochemicals, and Advanced Materials.
Times Cited: 0
ISSN: 0125-2526
Record 123 of 271
Author(s): Chuayjuljit, S (Chuayjuljit, Saowaroj); Boonmahitthisud, A (Boonmahitthisud, Anyaporn)
Title: Natural rubber nanocomposites using polystyrene-encapsulated nanosilica prepared by differential microemulsion
polymerization
Source: APPLIED SURFACE SCIENCE, 256 (23): 7211-7216 SEP 15 2010
Language: English
Author Keywords: Natural rubber; Polystyrene-encapsulated nanosilica; Differential microemulsion polymerization; Mechanical
properties; Flammability
KeyWords Plus: EMULSION POLYMERIZATION; RUBBER/SILICA NANOCOMPOSITES; SILICA NANOPARTICLES;
MICROSPHERES; FLAMMABILITY; MORPHOLOGY; STYRENE; BLENDS
Abstract: In this study, nanocomposites of natural rubber (NR) and polystyrene (PS)-encapsulated nanosilica were prepared by
latex compounding method. The nanolatex of PS-encapsulated silica was synthesized via in situ differential microemulsion
polymerization. The resulted hybrid nanoparticles showed core-shell morphology with an average diameter of 40 nm. The silica
hybrid nanoparticles were subsequently used as filler for the NR nanocomposite. The properties of NR were found to be
improved as a result of the incorporation of PS-encapsulated nanosilica at 3 and 3-9 parts per hundred rubber (phr) for tensile
strength and modulus at 300% strain, respectively, except the elongation at break, and up to 9 phr for flammability. The results
from dynamic mechanical analyzer showed that the elastic properties of NR near the glass transition temperature increased with
the inclusion of increasing concentration of the PS-encapsulated nanosilica, causing by the semi-interpenetrating nanostructure in
the NR nanocomposites. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Chuayjuljit, Saowaroj; Boonmahitthisud, Anyaporn] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330,
Thailand; [Chuayjuljit, Saowaroj; Boonmahitthisud, Anyaporn] Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem & Adv
Mat, Bangkok 10330, Thailand
Reprint Address: Chuayjuljit, S, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Phyathai Rd, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Department of Materials Science, Faculty of Science, Chulalongkorn University
The authors are grateful to the Thailand Research Fund and the Department of Materials Science, Faculty of Science,
Chulalongkorn University for financial, material and instrument support. The authors would like to thank Dr. Robert Butcher for
the manuscript correction and suggestion.
Times Cited: 0
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2010.05.053
29-char Source Abbrev.: APPL SURF SCI
ISO Source Abbrev.: Appl. Surf. Sci.
Subject Category: Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter
ISI Document Delivery No.: 621PD
Record 124 of 271
Author(s): Fuangarworn, M (Fuangarworn, Marut)
Title: Two new species of the oribatid mite genus Phyllochthonius Trave, 1967 (Acari: Oribatida: Phyllochthoniidae) from
Thailand
Source: ZOOTAXA, (2521): 26-36 JUN 29 2010
Language: English
Author Keywords: Oribatida; Enarthronota; Phyllochthonius; new species; taxonomy
Abstract: The enarthronote oribatid mite genus Phyllochthonius Trave, 1967 (Acari: Oribatida: Phyllochthoniidae) is recorded
from Thailand for the first time. Two new species, Phyllochthonius ovatosetosus n. sp. collected from sandy soil in a riparian
habitat and Phyllochthonius peniculus n. sp. collected from leaf-litter on the forest floor, are described based on adults and all
immature instars, and on only the adult specimen respectively. The genus is rediagnosed and a key to the three currently known
species is provided.
Addresses: Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Fuangarworn, M, Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center of Excellence in Biodiversity, Chulalongkorn University
I am grateful to the Center of Excellence in Biodiversity, Chulalongkorn University for facility support and providing funds for
field work. Additional funds were provided by the Chulalongkorn University Centenary Academic Development Project.
Special thanks are due to Assoc. Prof. Chariya Lekprayoon and Dr. Robert Butcher (Department of Biology and PCU of
Research Affairs, respectively, Faculty of Science, Chulalongkorn University) as well as Prof. Dr. Roy A. Norton (SUNY,
College of Environmental Science and Forestry, Syracuse, NY) for correcting and commenting on the manuscript.
Times Cited: 0
ISSN: 1175-5326
23/11/2553 18:37
ISI Document Delivery No.: 617AG
Record 125 of 271
Author(s): Sahasathian, T (Sahasathian, Teerawat); Praphairaksit, N (Praphairaksit, Nalena); Muangsin, N (Muangsin, Nongnuj)
Title: Mucoadhesive and Floating Chitosan-coated Alginate Beads for the Controlled Gastric Release of Amoxicillin
Source: ARCHIVES OF PHARMACAL RESEARCH, 33 (6): 889-899 JUN 2010
Language: English
Author Keywords: Amoxicillin; Chitosan-coated alginate beads; Helicobacter pylori; Mucoadhesive beads
KeyWords Plus: HELICOBACTER-PYLORI INFECTION; DRUG-DELIVERY; SUSTAINED-RELEASE; DOSAGE FORM;
BLEND FILMS; IN-VITRO; MICROSPHERES; CLARITHROMYCIN; ERADICATION; SYSTEM
Abstract: This work focused on the development of mucoadhesive and floating chitosan-coated alginate beads as a
gastroretensive delivery vehicle for amoxicillin, towards the effective eradication of Helicobacter pylori, a major causative agent
of peptic ulcers. Alginate was used as the core bead core polymer and chitosan as the mucoadhesive polymer coating.
Amoxicillin-loaded alginate beads coated with 0.5% (w/v) chitosan (ALG/0.5%CHI) exhibited excellent floating ability, high
encapsulation efficiency, high drug loading capacity, and a strong in vitro mucoadhesion to the gastric mucosal layer. In, vitro,
amoxicillin was released faster in simulated gastric fluid (pH 1.2, HCl) than in simulated intestinal fluid (phosphate buffer, pH
7.4). ALG/0.5%CHI could be prepared with a > 90% drug encapsulation efficiency and exhibited more than 90%
muco-adhesiveness, 100% floating ability, and achieved sustained release of amoxicillin for over six hours in SGF.
Addresses: [Muangsin, Nongnuj] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Sahasathian, Teerawat]
Chulalongkorn Univ, Fac Sci, Program Petrochem & Polymer Sci, Bangkok 10330, Thailand; [Praphairaksit, Nalena]
Srinakharinwirot Univ, Fac Sci, Dept Biol, Bangkok 10300, Thailand
Reprint Address: Muangsin, N, Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The authors gratefully acknowledge a Graduate Thesis Grant of Chulalongkorn University to T. Sahasatien and Center for
Petroleum, Petrochemicals, and Advanced Materials for financial support, and the A1-B1 project, Faculty of Science, and
MMRI of Chulalongkorn University for technical support. Thanks are also given to Dr. Robert Butcher of the PCU, Faculty of
Science, Chulalongkorn University, for constructive comments and English corrections, and to two anonymous referees whose
comments on a previous version improved this manuscript.
Times Cited: 0
Publisher: PHARMACEUTICAL SOC KOREA
Publisher Address: 1489-3 SUHCHO-DONG, SUHCHO-KU, SEOUL 137-071, SOUTH KOREA
ISSN: 0253-6269
DOI: 10.1007/s12272-010-0612-8
29-char Source Abbrev.: ARCH PHARM RESEARCH
ISO Source Abbrev.: Arch. Pharm. Res.
ISI Document Delivery No.: 618LS
Record 126 of 271
Author(s): Suwancharoen, S (Suwancharoen, Sunisa); Tommeurd, W (Tommeurd, Wantanee); Phurat, C (Phurat, Chuttree);
Muangsin, N (Muangsin, Nongnuj); Pornpakakul, S (Pornpakakul, Surachai)
Title: Acanthoic acid
Source: ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 66: O1531-U223 Part 7 JUL 2010
Language: English
KeyWords Plus: (-)-ACANTHOIC ACID
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Abstract: The title compound [systematic name: (1R,4aR,7S,8aS,10aS)-1,4a,7-trimethyl-7-vinyl-1,2,3,4,4a,6,7,8,8a,9,10,10adodecahydrophenanthrene-1-carboxylic acid], C20H30O2, is a pimarane-type diterpene extracted from Croton oblongifolius.
There are two independent molecules in the asymmetric unit. In both of these, the six-membered rings A, B and C adopt chair, boat
and half-chair conformations, respectively. Rings A and B are trans-fused. The two molecules in the asymmetric unit form O-H
center dot center dot center dot O hydrogen-bonded R-2(2)(8) dimers. The absolute configuration was assigned on the basis of the
published literature on analogous structures.
Addresses: [Suwancharoen, Sunisa; Tommeurd, Wantanee; Phurat, Chuttree; Muangsin, Nongnuj; Pornpakakul, Surachai]
Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Pornpakakul, S, Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Office of the Higher Education Commission, Thailand
90th Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment
Fund)
National Center of Excellence for Petroleum, Petrochemicals, and Advanced materials
Faculty of Science
A1B1
TKK2555
This research was supported by a grant under the program Strategic Scholarships for Frontier Research Network for the PhD
Program Thai Doctoral degree from the Office of the Higher Education Commission, Thailand, the 90th
Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment Fund), the Department of Chemistry,
Faculty of Science, Chulalongkorn University, and the National Center of Excellence for Petroleum, Petrochemicals, and
Advanced materials are also gratefully acknowledged. Finally, we thank the Research Funds from the Faculty of Science
(A1B1), the Thai Government Stimulus Package 2 (TKK2555) under the Project for Establishment of Comprehensive Center for
Innovative Food, Health Products and Agriculture for their support of X-ray crystallography analysis by supporting the X-ray
analysis fund.
Times Cited: 0
ISSN: 1600-5368
DOI: 10.1107/S1600536810019483
ISI Document Delivery No.: 618BD
Record 127 of 271
Author(s): Sirijindalert, T (Sirijindalert, Thirawat); Hansuthirakul, K (Hansuthirakul, Kunlayanee); Rashatasakhon, P
(Rashatasakhon, Paitoon); Sukwattanasinitt, M (Sukwattanasinitt, Mongkol); Ajavakom, A (Ajavakom, Anawat)
Title: Novel synthetic route to 1,4-dihydropyridines from beta-amino acrylates by using titanium(IV) chloride under facile
conditions
Source: TETRAHEDRON, 66 (27-28): 5161-5167 JUL 3 2010
Language: English
Author Keywords: Beta-Amino acrylate; 1,4-Dihydropyridine; Oxazolidin-2-one; Titanium(IV) chloride; Acid-induced
cyclization
KeyWords Plus: FUNCTIONALIZED PYRROLES; DERIVATIVES; OXAZOLIDIN-2-ONES; DIHYDROPYRIDINES;
CHEMISTRY; ENAMINES; BASES
Abstract: The reactions of Boc-beta-amido- and beta-amino acrylates, in which the C=C possesses both nucleophilic and
electrophilic sites, were investigated under acidic conditions. The trifluoroacetic-acid induced cyclization of the beta-amido
acrylates to the corresponding oxazolidin-2-ones involves a rarely seen nucleophilic attack of the carbamate carbonyl group. The
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cyclotrimerization of beta-amino acrylates to N-substituted 1,4-dihydropyridines was observed in the presence of a Lewis acid.
High yields of 1,4-dihydropyridines (70-83%) were readily obtained by using substoichiometric amount TiCl4 under mild
condition. The cyclotrimerization is presumably occurring via a Hantzsch related mechanism involving three addition/elimination
reactions of the amphiphilically reactive C=C. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Sirijindalert, Thirawat; Rashatasakhon, Paitoon; Sukwattanasinitt, Mongkol; Ajavakom, Anawat] Chulalongkorn
Univ, Organ Synth Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Ajavakom, A, Chulalongkorn Univ, Organ Synth Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Innovations for the improvement of Food Safety and Food Quality for New World Economy
Government Research Budget and Center for Petroleum, Petrochemicals
Advanced Materials, Chulalongkorn University
This work is financially supported by the Integration Project: Innovations for the improvement of Food Safety and Food Quality
for New World Economy, Government Research Budget and Center for Petroleum, Petrochemicals and Advanced Materials,
Times Cited: 0
ISSN: 0040-4020
DOI: 10.1016/j.tet.2010.04.102
ISI Document Delivery No.: 615HY
Record 128 of 271
Author(s): Korsrilabut, J (Korsrilabut, Jiraporn); Borompichaichartkul, C (Borompichaichartkul, Chaleeda); Duangmal, K
(Duangmal, Kiattisak)
Title: Effect of invert sugar on the drying kinetics and water mobility of osmosed-air dried cantaloupe
Source: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 45 (7): 1524-1531 JUL 2010
Language: English
Author Keywords: Cantaloupe; drying kinetics; invert sugar; kinetic modelling; NMR; osmotic dehydration; water mobility
KeyWords Plus: OSMOTIC DEHYDRATION; QUALITY; SLICES; APPLE; BEHAVIOR; BANANA; FOODS
Abstract: P>Effect of partially replacing sucrose with invert sugar on drying kinetics of osmosed cantaloupe was evaluated using
four levels of invert sugar (0, 5, 10 and 15% (v/v)) to partially replace sucrose syrup at 50 degrees Brix. The osmosed samples
were then dried at 60 degrees C. The osmosed cantaloupe without invert sugar exhibited the fastest drying rate. The drying rate
decreased with increasing amounts of invert sugar. An increase in the degree of water binding to invert sugar is the most likely
explanation for this effect and is supported by the observed decrease in the NMR relaxation time. The use of invert sugar could
reduce water activity of final product but not significantly improve overall appearance. Six different mathematical models were
tested for their goodness of fit with experimental data. Modified Henderson and Pabis model was found to give the best fit and
was able to predict the drying time accurately.
Addresses: [Korsrilabut, Jiraporn; Borompichaichartkul, Chaleeda; Duangmal, Kiattisak] Chulalongkorn Univ, Dept Food
Technol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Duangmal, K, Chulalongkorn Univ, Dept Food Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
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This research was supported in part by funding from Chulalongkorn University. The authors also thank Dr. Robert Butcher for
his English proofreading.
Times Cited: 0
ISSN: 0950-5423
DOI: 10.1111/j.1365-2621.2010.02301.x
ISI Document Delivery No.: 613YU
Record 129 of 271
Author(s): Jainae, K (Jainae, Kunawoot); Sanuwong, K (Sanuwong, Kittipong); Nuangjamnong, J (Nuangjamnong, Jirasak);
Sukpirom, N (Sukpirom, Nipaka); Unob, F (Unob, Fuangfa)
Title: Extraction and recovery of precious metal ions in wastewater by polystyrene-coated magnetic particles functionalized with
2-(3-(2-aminoethylthio)propylthio)ethanamine
Source: CHEMICAL ENGINEERING JOURNAL, 160 (2): 586-593 JUN 1 2010
Language: English
Author Keywords: Magnetic particles; Polymer coating; Extraction; Recovery; Silver; Gold
KeyWords Plus: OXIDE/POLYSTYRENE CORE/SHELL NANOPARTICLES; TRANSFER RADICAL POLYMERIZATION;
HG(II) IONS; ADSORPTION; SILVER(I); RESINS; GOLD(III); ATRP
Abstract: Cobalt ferrite magnetic particles were coated with polystyrene through atom transfer radical polymerization (ATRP),
followed by surface functionalization with 2-(3-(2-aminoethylthio)propylthio)ethanamine. The obtained products (AEPEPS-MPs) were employed in the extraction of Ag(I) and Au(III) ions in solution. The modified magnetic particles showed a good
affinity toward Ag(I) and Au(III) ions and the stability of the particles in acidic solutions was also improved by the coating. The
optimal pH for Ag(I) and Au(III) extraction was pH 5.0 and pH 4.0, respectively. The adsorption of the metal ions onto
AEPE-PS-MPs followed Langmuir isotherm model with the maximum adsorption capacity of 0.44 mmol Ag(I) g(-1) and 0.19
mmol Au(III)g(-1). The recovery of Ag and Au from the adsorbents could be achieved by using 1.0 M thiourea in 1% HNO3 and
1.0 M thiourea in 2% NCl, respectively. The reuse of the adsorbents is possible. The products were shown to have potential in the
extraction of Ag and Au in real wastewater. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Sanuwong, Kittipong; Nuangjamnong, Jirasak; Sukpirom, Nipaka; Unob, Fuangfa] Chulalongkorn Univ, Dept Chem,
Fac Sci, Bangkok 10330, Thailand; [Jainae, Kunawoot] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci,
Reprint Address: Unob, F, Chulalongkorn Univ, Dept Chem, Fac Sci, Payathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
90th Anniversary of Chulalongkorn University Fund
This work was financially supported by the 90th Anniversary of Chulalongkorn University Fund (Ratchadphiseksomphot
Endowment Fund), Environmental Analysis Research Unit (EARU) and Department of Chemistry, Faculty of Science,
Times Cited: 0
ISSN: 1385-8947
DOI: 10.1016/j.cej.2010.03.080
29-char Source Abbrev.: CHEM ENG J
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ISO Source Abbrev.: Chem. Eng. J.
Subject Category: Engineering, Environmental; Engineering, Chemical
ISI Document Delivery No.: 615LX
Record 130 of 271
Author(s): Rungrotmongkol, T (Rungrotmongkol, Thanyada); Malaisree, M (Malaisree, Maturos); Nunthaboot, N (Nunthaboot,
Nadtanet); Sompornpisut, P (Sompornpisut, Pornthep); Hannongbua, S (Hannongbua, Supot)
Title: Molecular prediction of oseltamivir efficiency against probable influenza A (H1N1-2009) mutants: molecular modeling
approach
Source: AMINO ACIDS, 39 (2): 393-398 JUL 2010
Language: English
Author Keywords: 2009-H1N1 influenza A neuraminidase; Oseltamivir resistance; Mutations; Molecular dynamics simulations
KeyWords Plus: FREE-ENERGY CALCULATIONS; NEURAMINIDASE INHIBITORS; BINDING-AFFINITY; IN-VITRO;
RESISTANCE; DYNAMICS; VIRUSES; SIMULATIONS; MUTATIONS; FITNESS
Abstract: To predict the susceptibility of the probable 2009 influenza A (H1N1-2009) mutant strains to oseltamivir, MD/LIE
approach was applied to oseltamivir complexed with the most frequent drug-resistant strains of neuraminidase subtypes N1 and
N2: two mutations on the framework residues (N294S and H274Y) and the two others on the direct-binding residues (E119V and
R292K) of oseltamivir. Relative to those of the wild type (WT), loss of drug-target interaction energies, especially in terms of
electrostatic contributions and hydrogen bonds were dominantly established in the E119V and R292K mutated systems. The
inhibitory potencies of oseltamivir towards the WT and mutants were predicted according to the ordering of binding-free
energies: WT (-12.3 kcal mol(-1)) > N294S (-10.4 kcal mol(-1)) > H274Y (-9.8 kcal mol(-1)) > E119 V (-9.3 kcal mol(-1)) >
R292K (-7.7 kcal mol(-1)), suggesting that the H1N1-2009 influenza with R292K substitution, perhaps, conferred a high level of
oseltamivir resistance, while the other mutants revealed moderate resistance levels. This result calls for an urgent need to develop
new potent anti-influenza agents against the next pandemic of potentially higher oseltamivir-resistant H1N1-2009 influenza.
Addresses: [Rungrotmongkol, Thanyada; Malaisree, Maturos; Sompornpisut, Pornthep; Hannongbua, Supot] Chulalongkorn Univ,
Computat Chem Unit Cell, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Rungrotmongkol, Thanyada] Chulalongkorn Univ, Ctr
Innovat Nanotechnol, Bangkok 10330, Thailand; [Nunthaboot, Nadtanet] Mahasarakham Univ, Dept Chem, Fac Sci, Maha
Sarakham 44150, Thailand
Reprint Address: Hannongbua, S, Chulalongkorn Univ, Computat Chem Unit Cell, Fac Sci, Dept Chem, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
Thailand Research Fund (TRF) 3.C.CU/48/F.1
TRF Grant for New Research
TRG5280035
This work was supported by the Thailand Research Fund (TRF). T. R. thanks the TRF Grant for New Research (Grant No.
TRG5280035) and M. M. thanks the Royal Golden Jubilee Ph.D. Program (Grant No. 3.C.CU/48/F.1) from the TRF. T. R. also
thanks the Post-Doctoral Program from the Commission on Higher Education. The Computational Chemistry Unit Cell,
Chulalongkorn University, provided the computing facilities. The Center of Excellence for Petroleum, Petrochemicals, and
Advanced Materials, Chulalongkorn University, is acknowledged.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0939-4451
DOI: 10.1007/s00726-009-0452-3
29-char Source Abbrev.: AMINO ACIDS
ISO Source Abbrev.: Amino Acids
ISI Document Delivery No.: 616EA
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Author(s): Watchasit, S (Watchasit, Sarayut); Kaowliew, A (Kaowliew, Arpadsara); Suksai, C (Suksai, Chomchai); Tuntulani, T
(Tuntulani, Thawatchai); Ngeontae, W (Ngeontae, Wittaya); Pakawatchai, C (Pakawatchai, Chaveng)
Title: Selective detection of pyrophosphate by new tripodal amine calix[4]arene-based Cu(II) complexes using indicator
displacement strategy
Source: TETRAHEDRON LETTERS, 51 (26): 3398-3402 JUN 30 2010
Language: English
KeyWords Plus: 100-PERCENT AQUEOUS-SOLUTION; CHROMOGENIC ANION SENSORS; X-RAY STRUCTURES;
PHYSIOLOGICAL CONDITIONS; MOLECULAR RECOGNITION; EXCIMER FORMATION; SOLID-STATE;
FLUORESCENT; WATER; ASSAYS
Abstract: Mono- and dinuclear Cu(II) complexes of p-tert-butylcalix[4]arene (CuL1 and CuL2, respectively) were synthesized,
and their anion recognition abilities were explored. Recognition is efficiently signaled through the displacement of pyrocatechol
violet bound to the receptor. For CuL2, recognition selectivity is ascribed to the tuning of the distance between donor atoms of
anion guests and their ability to encompass the Cu2+-Cu2+ distance within the cleft of CuL2. In addition, the preorganization of
calix[4]arene in the cone conformation and steric hindrance of two bulky tripodal amine moieties are important factors in
controlling the Cu2+-Cu2+ distance. These factors caused CuL2 to recognize pyrophosphate selectively with respect to other
inorganic anions in 80/20 (v/v%) MeCN/H2O solution buffered with 10 mM HEPES at pH 6.4. (C) 2010 Elsevier Ltd. All rights
reserved.
Addresses: [Watchasit, Sarayut; Kaowliew, Arpadsara; Suksai, Chomchai] Burapha Univ, Fac Sci, Dept Chem, Chon Buri 20131,
Thailand; [Watchasit, Sarayut; Kaowliew, Arpadsara; Suksai, Chomchai] Burapha Univ, Fac Sci, Ctr Innovat Chem, Chon Buri
20131, Thailand; [Tuntulani, Thawatchai] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Ngeontae,
Wittaya] Khon Kaen Univ, Fac Sci, Dept Chem, Khon Kaen 40002, Thailand; [Ngeontae, Wittaya] Khon Kaen Univ, Fac Sci, Ctr
Innovat Chem, Khon Kaen 40002, Thailand; [Pakawatchai, Chaveng] Prince Songkla Univ, Fac Sci, Dept Chem, Hat Yai 90112,
Thailand; [Pakawatchai, Chaveng] Prince Songkla Univ, Fac Sci, Ctr Innovat Chem, Hat Yai 90112, Thailand
Reprint Address: Suksai, C, Burapha Univ, Fac Sci, Dept Chem, Chon Buri 20131, Thailand.
Funding Agency
Grant Number
MRG5380064
RTA5080006
Faculty of Science, Burapha University
Center for Innovation in Chemistry (PERCH-CIC), Burapha University
Commission on Higher Education, Ministry of Education
Financial support from The Thailand Research Fund (MRG5380064 and RTA5080006), a Grant from the Faculty of Science,
Burapha University, and Center for Innovation in Chemistry (PERCH-CIC) and Commission on Higher Education, Ministry of
Education, are gratefully acknowledged.
Times Cited: 1
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2010.04.095
29-char Source Abbrev.: TETRAHEDRON LETT
ISO Source Abbrev.: Tetrahedron Lett.
ISI Document Delivery No.: 612DK
Record 132 of 271
Author(s): Taveepanich, S (Taveepanich, Somjintana); Muangsin, N (Muangsin, Nongnuj); Saithong, S (Saithong, Saowanit);
Pakawatchai, C (Pakawatchai, Chawang); Chaichit, N (Chaichit, Narongsak); Roengsumran, S (Roengsumran, Sophon); Petsom, A
(Petsom, Amorn)
Title: Biotransformation of ent-kaur-16-en-19-oic acid by Absidia blakesleeana and Rhizopus oligosporus
23/11/2553 18:37
Source: NATURAL PRODUCT RESEARCH, 24 (11): 1050-1058 2010
Language: English
Author Keywords: biotransformation; Absidia blakesleeana; Rhizopus oligosporus; diterpenoids; ent-kaur-16-en-19-oic acid
KeyWords Plus: DERIVATIVES; METABOLISM
Abstract: Biotransformation of ent-kaur-16-en-19-oic acid was carried out with Absidia blakesleeana and Rhizopus oligosporus.
Absidia blakesleeana produced two novel metabolites, ent-(7, 9)-dihydroxy-kaur-16-en-19-oic acid and ent-(1, 7)-dihydroxykaur-16-en-19-oic acid, together with three known compounds: ent-7-hydroxy-kaur-16-en-19-oic acid, ent-(7, 11)-dihydroxykaur-16-en-19-oic acid and ent-(7, 13)-dihydroxy-kaur-16-en-19-oic acid. The ent-7-hydroxy-kaur-16-en-19-oic acid and ent-(7,
9)-dihydroxy-kaur-16-en-19-oic acid were obtained from R. oligosporus. The structures were established by spectroscopic
techniques and X-ray crystallography.
Addresses: [Taveepanich, Somjintana; Muangsin, Nongnuj; Roengsumran, Sophon; Petsom, Amorn] Chulalongkorn Univ, Dept
Chem, Fac Sci, Res Ctr Bioorgan Chem, Bangkok, Thailand; [Saithong, Saowanit; Pakawatchai, Chawang] Prince Songkla Univ,
Dept Chem, Fac Sci, Hat Yai, Thailand; [Chaichit, Narongsak] Thammasat Univ, Dept Phys, Fac Sci & Technol, Pathum Thani,
Thailand
Reprint Address: Petsom, A, Chulalongkorn Univ, Dept Chem, Fac Sci, Res Ctr Bioorgan Chem, Bangkok, Thailand.
Funding Agency
Grant Number
Royal Golden Jubilee PhD scholarship
University Development Commission (UDC)
TRF Senior Research Scholar
4880008
Graduate School and Department of Chemistry, Faculty of Science, Chulalongkorn University
The Royal Golden Jubilee PhD scholarship and the University Development Commission (UDC) scholarship to S. Taveepanich
and financial support from the TRF Senior Research Scholar (Agreement Number 4880008) to N. Chaichit are gratefully
acknowledged. We also thank the Graduate School and Department of Chemistry, Faculty of Science, Chulalongkorn University,
for partial financial support.
Times Cited: 0
ISSN: 1478-6419
DOI: 10.1080/14786410902941139
29-char Source Abbrev.: NAT PROD RES
ISO Source Abbrev.: Nat. Prod. Res.
Subject Category: Chemistry, Applied; Chemistry, Medicinal
ISI Document Delivery No.: 611DD
Record 133 of 271
Author(s): Conti, R (Conti, R.); Hamhalter, J (Hamhalter, J.)
Title: Independence of group algebras
Source: MATHEMATISCHE NACHRICHTEN, 283 (6): 818-827 JUN 2010
Language: English
Author Keywords: Group algebras; W*-independence; C*-independence
KeyWords Plus: C-ASTERISK-INDEPENDENCE; QUANTUM FIELD THEORY; TENSOR-PRODUCTS; STATISTICAL
INDEPENDENCE; OPERATOR-ALGEBRAS; 2 GENERATORS; II1
Abstract: It is shown that major independence conditions for left and right group operator algebras coincide. If Gamma is a
discrete ICC group, then the reduced left and right group algebras W-lambda*(F) and W-phi*(Gamma) are W*-independent.
These algebras are moreover independent in the product sense if, and only if, r is amenable. If A and B are subgroups of Gamma,
then the left and right reduced group (sub)algebrasW(lambda)*(A) and W-phi*(B) are W*-independent provided that any of the
following two conditions is satisfied: (i) A and B have trivial intersection; (ii) A or B is ICC. The results indicate an interplay
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between intrinsic group-theoretic properties and independence of the corresponding group algebras that can be further exploited.
New examples of W*-independent von Neumann algebras arising from groups are generated. (C) 2010 WILEY-VCH Verlag
GmbH & Co. KGaA, Weinheim
Addresses: [Hamhalter, J.] Czech Tech Univ, Dept Math, Fac Elect Engn, Prague 16627 6, Czech Republic; [Conti, R.]
Chulalongkorn Univ, Dept Math, Fac Sci, Bangkok 10330, Thailand; [Conti, R.] Univ Chieti Pescara G DAnnunzio, Dipartimento
Sci, I-65127 Pescara, Italy
Reprint Address: Hamhalter, J, Czech Tech Univ, Dept Math, Fac Elect Engn, Tech 2, Prague 16627 6, Czech Republic.
Funding Agency
Grant Number
Ministry of Education of the Czech Republic 6840770010
Grant Agency of the Czech Republic
201/07/1051
Alexander von Humboldt Foundation
The work of the second author was supported by the research plans of the Ministry of Education of the Czech Republic No.
6840770010 and by the project "Algebraic and Measure-theoretic Aspects of Quantum Structures", Grant Agency of the Czech
Republic, No. 201/07/1051. The second author also thanks the Alexander von Humboldt Foundation for the support of his work.
Times Cited: 0
ISSN: 0025-584X
DOI: 10.1002/mana.200710038
29-char Source Abbrev.: MATH NACHR
ISO Source Abbrev.: Math. Nachr.
ISI Document Delivery No.: 611MN
Record 134 of 271
Author(s): Donpudsa, S (Donpudsa, Suchao); Rimphanitchayakit, V (Rimphanitchayakit, Vichien); Tassanakajon, A
(Tassanakajon, Anchalee); Soderhall, I (Soderhall, Irene); Soderhall, K (Soderhall, Kenneth)
Title: Characterization of two crustin antimicrobial peptides from the freshwater crayfish Pacifastacus leniusculus
Source: JOURNAL OF INVERTEBRATE PATHOLOGY, 104 (3): 234-238 JUL 2010
Language: English
Author Keywords: Antimicrobial peptide; Crustin; Micrococcus luteus; Pacifastacus leniusculus; WAP domain
KeyWords Plus: SHRIMP PENAEUS-MONODON; ANTIBACTERIAL PEPTIDE; PROTEINASE-INHIBITOR; CARCINUSMAENAS; SHORE CRAB; RECOMBINANT EXPRESSION; LITOPENAEUS-VANNAMEI; MOLECULAR-CLONING;
HEMOCYTES; DOMAIN
Abstract: The two bacteria-induced crustin genes, Plcrustin1 and Plcrustin2, previously found in the hemocyte cDNA library of
Pacifastacus leniusculus, contain the open reading frames of 357 bp encoding a putative protein of 118 amino acid residues and
330 bp encoding a putative protein of 109 amino acid residues, respectively. The carboxyl-terminal part of the two crustins
possesses, respectively, 7 and 8 conserved cysteine residues representation of a WAP domain that is found in carcinins and
crustins in other several crustaceans. The amino acid sequences of Plcrustin1 and Plcrustin2 show that they belong to type I
crustins. In order to characterize their properties and biological activities, the two recombinant crustin proteins were produced in
the Escherichia coil expression system. Antimicrobial assays showed that the growth of only one Gram-positive bacterium,
Micrococcus luteus M1 11, was inhibited by the recombinant Plcrustin1 and Plcrustin2 with MIC of about 0.07-0.27 mu M and
3.5-8 mu M, respectively. In addition, the study of inhibition mechanism revealed that the antimicrobial activity of the two
recombinant crustin proteins was a result of bactericidal effect. However, the two crustins did not exhibit the inhibitory activities
against trypsin, chymotrypsin, elastase and subtilisin A. (C) 2010 Elsevier Inc. All rights reserved.
Addresses: [Donpudsa, Suchao; Soderhall, Irene; Soderhall, Kenneth] Uppsala Univ, Dept Comparat Physiol, SE-75236 Uppsala,
Sweden; [Donpudsa, Suchao; Rimphanitchayakit, Vichien; Tassanakajon, Anchalee] Chulalongkorn Univ, Fac Sci, Dept Biochem,
Ctr Excellence Mol Biol & Genom Shrimp, Bangkok 10330, Thailand
Reprint Address: Soderhall, I, Uppsala Univ, Dept Comparat Physiol, Norbyvagen 18 A, SE-75236 Uppsala, Sweden.
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Funding Agency
Grant Number
Commission on Higher Education, Ministry of Education, Thailand
This work was supported partly by a research grant from the Commission on Higher Education, Ministry of Education, Thailand.
The Ph.D. student fellowships to Mr. Suchao Donpudsa for the Strategic Scholarships Fellowships Frontier Research Networks
from the Commission on Higher Education, Ministry of Education, Thailand, was greatly appreciated.
Times Cited: 0
ISSN: 0022-2011
DOI: 10.1016/j.jip.2010.04.001
29-char Source Abbrev.: J INVERTEBR PATHOL
ISO Source Abbrev.: J. Invertebr. Pathol.
ISI Document Delivery No.: 612UY
Record 135 of 271
Author(s): Komolpis, K (Komolpis, Kittinan); Udomchokmongkol, C (Udomchokmongkol, Chatchawan); Phutong, S (Phutong,
Songchan); Palaga, T (Palaga, Tanapat)
Title: Comparative production of a monoclonal antibody specific for enrofloxacin in a stirred-tank bioreactor
Source: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 16 (4): 567-571 JUL 25 2010
Language: English
Author Keywords: Monoclonal antibody; Hybridoma; Cell cultivation; Continuous perfusion; Spin filter bioreactor
KeyWords Plus: DENSITY CELL-CULTURE; HYBRIDOMA CELLS; PERFUSION CULTURE; GROWTH; FILTER;
RETENTION; PROPAGATION; METABOLISM; SUSPENSION; SYSTEM
Abstract: A hybridoma producing monoclonal antibody (MAb) specific for enrofloxacin was cultivated in a 2-L stirred-tank
bioreactor in various modes and the performances of each mode were compared. In batch mode, a maximum viable cell and MAb
concentration of 9.21 x 10(5) cells mL(-1) and 67.3 mg L-1, respectively, were obtained. When the hybridoma was cultivated in a
fed-batch culture with the addition of specific nutrients, no improvement in either the viable cell number or MAb concentration
was observed. On the other hand, an increase in the production of toxic metabolites, i.e. ammonia and lactate, was observed with
growth inhibition of the hybridoma cells occurring at ammonia and lactate concentrations of 2.0 mM and 2.0 g L-1, respectively.
However, the best performance of hybridoma cultivation was achieved in a perfusion culture mode using a spin filter, which was
installed in the stirred-tank reactor as a cell retention device with a perfusion rate of 0.80 vvd. Under these conditions a steady
viable cell concentration of 1.57 x 10(6) cells mL(-1) was obtained within five days with an overall productivity and yield of
73.7 mg L-1 d(-1) and 61.4 mg d(-1), respectively, which was a significant increase over that attained with the batch process.
Crown Copyright (C) 2010 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.
Addresses: [Komolpis, Kittinan; Phutong, Songchan] Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Bangkok 10330,
Thailand; [Udomchokmongkol, Chatchawan] Chulalongkorn Univ, Fac Sci, Grad Program Biotechnol, Bangkok 10330, Thailand;
[Palaga, Tanapat] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok 10330, Thailand
Reprint Address: Komolpis, K, Chulalongkorn Univ, Inst Biotechnol & Genet Engn, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Chulalongkorn University Graduate School Research Grant
This project is partly funded by the research grant for Monoclonal Antibody Research Unit from Chulalongkorn University and
the Chulalongkorn University Graduate School Research Grant.
Times Cited: 0
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Publisher: ELSEVIER SCIENCE INC
Publisher Address: 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
ISSN: 1226-086X
DOI: 10.1016/j.jiec.2010.03.018
29-char Source Abbrev.: J IND ENG CHEM
ISO Source Abbrev.: J. Ind. Eng. Chem.
ISI Document Delivery No.: 610ZA
Record 136 of 271
Author(s): Thanomchat, S (Thanomchat, Sarit); Limpanart, S (Limpanart, Sarintorn); Srikulkit, K (Srikulkit, Kawee)
Title: Spinning and Characterizations of Polypropylene/Alkylphosphonic Acid Treated Montmorillonite Nanocomposite Fiber
Source: JOURNAL OF APPLIED POLYMER SCIENCE, 117 (4): 1969-1977 AUG 15 2010
Language: English
Author Keywords: modification of in situ dodecylamine intercalant; PP/alkylphosphonic treated nanocomposite fiber; nucleating
agent; mechanical properties
KeyWords Plus: CRYSTALLIZATION BEHAVIOR; MECHANICAL-PROPERTIES; MELT INTERCALATION; LAYERED
SILICATE; POLYPROPYLENE; COMPOSITES; SURFACTANTS; EXFOLIATION
Abstract: Fine and well-dispersed clay was prepared via the in situ conversion of the dodecylamine intercalant inside the clay
gallery to dodecylamino dimethylene diphosphonic acid (DDD), using a Mannich reaction, so as to create a repulsive force that
delaminated the clay platelets. The clay structure and morphology were characterized by X-ray diffraction (XRD), Scanning
electron microscopy (SEM), and Transmission electron microscopy (TEM) analysis, which revealed changes in the multilayer
stacks. XRD analysis showed that the interlayer spacing was largely expanded by the presence of DDD. SEM and TEM images
revealed that DDD containing clay (PMMT), but not that without DDD, exhibited transparency, indicating the extremely fine and
well-dispersed clay. Polypropylene/PMMT nanocomposites containing 2, 4, 6, 8, and 10 wt % PMMT were prepared by melt
extrusion. The obtained compounds were each spun into a monofilament fiber using a small scale spinning machine and then
characterized by XRD, Differential scanning calorimetry (DSC), and Thermogravimetric analysis (TGA), plus the sonic modulus
was evaluated. The XRD results revealed an increase in the beta crystallinity peak in fibers loaded with 2 10 wt % PMMT,
indicating that PMMT particles were capable of acting as a beta-form nucleating agent. However, only minimal changes in the
thermal behavior (T-c) were observed due to the tested samples containing insufficient PMMT content. The mechanical
properties, in terms of the tensile strength and sonic modulus value (E), of the polypropylene nanocomposite fibers were higher
than those of virgin PP fibers, presumably due to the reinforcement effect of the filled PMMT nanoparticles. (C) 2010 Wiley
Periodicals, Inc. J Appl Polym Sci 117: 1969-1977, 2010
Addresses: [Thanomchat, Sarit; Srikulkit, Kawee] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand;
[Limpanart, Sarintorn] Chulalongkorn Univ, Met & Mat Sci Res Inst, Bangkok 10330, Thailand; [Srikulkit, Kawee] Natl Ctr
Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Srikulkit, K, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Science and Technology Development Agency, Thailand
Contract grant sponsors: National Science and Technology Development Agency, Thailand; Thailand Research Fund.
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.32016
29-char Source Abbrev.: J APPL POLYM SCI
ISO Source Abbrev.: J. Appl. Polym. Sci.
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ISI Document Delivery No.: 612HH
Record 137 of 271
Author(s): Wongsiriwan, U (Wongsiriwan, Ungkana); Noda, Y (Noda, Yu); Song, CS (Song, Chunshan); Prasassarakich, P
(Prasassarakich, Pattarapan); Yeboah, Y (Yeboah, Yaw)
Title: Lignocellulosic Biomass Conversion by Sequential Combination of Organic Acid and Base Treatments
Source: ENERGY & FUELS, 24: 3232-3238 MAY 2010
Language: English
KeyWords Plus: MASS-SPECTROMETRIC CHARACTERIZATION; THERMAL-DEGRADATION PRODUCTS;
PYROLYSIS-GC-MS; SOLID-STATE NMR; TETRAMETHYLAMMONIUM HYDROXIDE TMAH;
GAS-CHROMATOGRAPHIC SEPARATION; O-TRIMETHYLSILYL OXIMES; OXALIC-ACID; C-13 NMR; KLASON LIGNIN
Abstract: The present work aims at exploring a new hydrolysis approach using sequential combinations of organic acid [oxalic
acid (OA)] and base [tetramethylammonium hydroxide (TMAH)] to convert lignocellulosic biomass at mild conditions (150-215
degrees C, 1-2 h, and 1 atm N-2) using a spruce wood sample in a batch reactor. In the single-step tests, hydrolysis with OA can
convert biomass to yield sugars and furanic compounds. Hydrolysis with TMAH mainly depolymerizes lignin to produce phenolic
compounds but also converts some polysaccharides in biomass possibly by the peeling reaction and/or alkaline hydrolysis. A
sequential combination of OA and TMAH can significantly increase the conversion of the biomass compared to single- or
two-step reactions with either the acid or the base. The analysis of liquid products by chemical derivatization followed by gas
chromatography equipped with a flame ionization detector (GC-FID) and the characterization of the solid residues by
pyrolysis-gas chromatography-mass-spectrometry (Py-GC-MS) and C-13 cross-polarization magic angle spinning nuclear
magnetic resonance (CPMAS NMR) reveal strong synergetic effects from the sequential combination of acid and base. In
single-step reactions, OA serves as a proton donor to cleave the glycosidic bond between polysaccharide monomers, while
TMAH reacts more selectively to lignin than polysaccharides. In two-step tests, the reaction with OA in the first step significantly
enhances the conversion with TMAH in the second step by almost twice compared to the corresponding reaction with base alone.
GC-FID analysis of the liquid sample shows relatively higher conversion of carbohydrates in the biomass with base in the second
step. Py-GC-MS and C-13 CPMAS NMR analysis also reveals that acid treatment in the first step enables base to convert more
cellulose in the second step.
Addresses: [Wongsiriwan, Ungkana; Noda, Yu; Song, Chunshan; Yeboah, Yaw] Penn State Univ, EMS Energy Inst, University Pk,
PA 16802 USA; [Wongsiriwan, Ungkana; Noda, Yu; Song, Chunshan; Yeboah, Yaw] Penn State Univ, Dept Energy & Mineral
Engn, University Pk, PA 16802 USA; [Wongsiriwan, Ungkana; Prasassarakich, Pattarapan] Chulalongkorn Univ, Fac Sci, Dept
Chem Technol, Bangkok 10330, Thailand
Reprint Address: Song, CS, Penn State Univ, EMS Energy Inst, 209 Acad Projects Bldg, University Pk, PA 16802 USA.
Funding Agency
Grant Number
PSU
We gratefully thank Dr. Dania A. Fonseca from the EMS Energy Institute at PSU for her kind support in instrumental analysis,
Dr. Alan Benesi from Department of Chemistry for NMR analysis, and Mr. Lee Stover from the School of Forest Resources at
PSU for providing the spruce sample. This research is supported in part by the Thailand Research Fund through the Royal
Golden Jubilee Program and PSU.
Times Cited: 1
ISSN: 0887-0624
DOI: 10.1021/ef901553r
29-char Source Abbrev.: ENERG FUEL
ISO Source Abbrev.: Energy Fuels
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Record 138 of 271
Author(s): Fuangarworn, M (Fuangarworn, Marut); Lekprayoon, C (Lekprayoon, Chariya)
Title: Two new species of cheyletid mites (Acari: Prostigmata) from Thailand
Source: ZOOTAXA, (2494): 59-68 JUN 4 2010
Language: English
Author Keywords: Cheyletidae; Mexecheles; Samsinakia; new species; taxonomy
Abstract: Two new species of predatory mites in the family Cheyletidae (Acari: Prostigmata), Mexecheles thailandensis n. sp.
collected from tree bark infested by scolytid beetles and Samsinakia charanasriae n. sp. from soil and leaf-litter, are described
and illustrated from Thailand. Keys to species of Mexecheles and Samsinakia are also provided.
Addresses: [Fuangarworn, Marut; Lekprayoon, Chariya] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand
Reprint Address: Fuangarworn, M, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center of Excellence in Biodiversity, Chulalongkorn University
Chulalongkorn University Centenary Academic Development Project
We would like to thank Srisawat family for collecting permission in their property and Dr. Andre V. Bochkov (Zoological
Institute, Russian Academy of Sciences) for providing information and reprints. We greatly appreciate the facility and funding
support provided by the Center of Excellence in Biodiversity, Chulalongkorn University and the Chulalongkorn University
Centenary Academic Development Project. We also thank Dr. Robert Butcher (CPU Research Affairs, Faculty of Science,
Chulalongkorn University) for correcting our English and comments on the manuscript.
Times Cited: 0
ISSN: 1175-5326
ISI Document Delivery No.: 607FV
Record 139 of 271
Author(s): Matsui, M (Matsui, Masafumi); Hamidy, A (Hamidy, Amir); Murphy, RW (Murphy, Robert W.); Khonsue, W
(Khonsue, Wichase); Yambun, P (Yambun, Paul); Shimada, T (Shimada, Tomohiko); Ahmad, N (Ahmad, Norhayati); Belabut, DM
(Belabut, Daicus M.); Jiang, JP (Jiang, Jian-Ping)
Title: Phylogenetic relationships of megophryid frogs of the genus Leptobrachium (Amphibia, Anura) as revealed by mtDNA gene
sequences
Source: MOLECULAR PHYLOGENETICS AND EVOLUTION, 56 (1): 259-272 JUL 2010
Language: English
Author Keywords: Leptobrachium; Vibrissaphora; Sundaland; Indochina; Southern China; mtDNA; Phylogenetics
KeyWords Plus: SEXUAL SIZE DIMORPHISM; SOUTHEAST-ASIA; MOLECULAR SYSTEMATICS; TIBETAN PLATEAU;
RIVER SYSTEMS; BIOGEOGRAPHY; VIBRISSAPHORA; PLEISTOCENE; EVOLUTION; PROVINCE
Abstract: By investigating genealogical relationships, we estimated the phylogenetic history and biogeography in the megophryid
genus Leptobrachium (sensu lato, including Vibrissaphora) from southern China, Indochina, Thailand and the Sundaland. The
genealogical relationships among the 30 named and unnamed taxa were estimated using 2009 bp of sequences from the
mitochondrial DNA genes 12S rRNA, tRNA(val), and 16S rRNA using maximum parsimony, maximum likelihood, and Bayesian
inference methods. The genus Leptobrachium was a well-supported monophyletic group that contained two major clades. One
clade had three subclades primarily from disjunct regions including Borneo, Peninsular Malaysia and Java, and Thailand. The
Bornean subclade included one species each from the Philippines and Sumatra. The other major clade consisted of two subclades,
one from Indochina and the other from southern China (Vibrissaphora). Divergence times estimated an old evolutionary history of
each subclade, one that could not be explained by the geohistory of Southeast Asian major landmasses. (C) 2010 Elsevier Inc. All
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rights reserved.
Addresses: [Matsui, Masafumi; Hamidy, Amir; Shimada, Tomohiko] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto
6068501, Japan; [Hamidy, Amir] Indonesian Inst Sci, Biol Res Ctr, Museum Zoologicum Bogoriense, Cibinong W Java,
Indonesia; [Murphy, Robert W.] Royal Ontario Museum, Ctr Biodivers & Conservat Biol, Toronto, ON M5S 2C6, Canada;
[Murphy, Robert W.] Chinese Acad Sci, Kunming Inst Zool, State Key Lab Genet Resources & Evolut, Kunming 650223, Peoples
R China; [Khonsue, Wichase] Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand; [Yambun, Paul] Div Res &
Educ, Kota Kinabalu 88806, Sabah, Malaysia; [Shimada, Tomohiko] Kyoto Gakuen Univ, Fac Bioenvironm Sci, Kyoto 6218555,
Japan; [Ahmad, Norhayati; Belabut, Daicus M.] Univ Kebangsaan Malaysia, Fac Sci & Technol, Ukm Bangi 43600, Selangor,
Malaysia; [Ahmad, Norhayati] Univ Kebangsaan Malaysia, Inst Environm & Dev LESTARI, Ukm Bangi 43600, Selangor,
Malaysia; [Belabut, Daicus M.] Univ Malaya, Inst Biol Sci, Fac Sci, Kuala Lumpur 50603, Malaysia; [Jiang, Jian-Ping] Chinese
Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
Funding Agency
Grant Number
Monbusho International Scientific Research Program
01041051
02041051
04041068
06041066
0804114
Japanese Society for the Promotion of Sciences (JSPS)
15370038
20405013
UKM
OUPPLW-14-59/2008
TJTTP-OECF
Natural Sciences and Engineering Research Council, Canada A3148
Royal Ontario Museum (ROM) Foundation
ROM Volunteers Fieldwork Committee
MM is grateful to the following for their encouragements and/or permission to conduct research and field companionship: H.
Akiyama, L. Apin, K. Araya, A.-A. Hamid, T. Hikida, H. Ota, H. Kassim, J.J. Kendawong, K.B. Kueh, T. Kusano, D. Labang,
M.B. Lakim, M. Maryati, the late J. Nabitabhata, K. Nishikawa, S. Panha, L.-H. Seng, A. Sudin, T. Sugahara, T. Tachi, M. Toda,
and N.-S. Wong. MM is also indebted to A. Ohler and M. Delorme for exchanging tissue samples, and N. Kuraishi and N.
Yoshikawa for laboratory assistance. We also thank two anonymous reviewers for improving an early version of the manuscript.
The National Research Council of Thailand, the Royal Forest Department of Thailand, the Economic-Planning Unit (former
Socio-Economic Research Unit) of Malaysia, the State Government of Sarawak, and Sabah Parks kindly permitted MM to
conduct the project, and Chulalongkorn University, University Malaya, Universiti Malaysia Sabah, Universiti Kebangsaan
Malaysia (UKM), JICA, and the Forest Department, Sarawak kindly provided all the facilities for conducting research. Field
trips by MM were made possible by grants from The Monbusho International Scientific Research Program (Field Research,
01041051, 02041051, 04041068, 06041066, and 08041144), The Monbukagakusho through the Japanese Society for the
Promotion of Sciences (JSPS: Field Research, 15370038, 20405013), UKM (OUPPLW-14-59/2008), and TJTTP-OECF. AH
thanks M.D. Kusrini, S. Kirono, G.B. Mandigani, D. Susanto, M. Harvey, E. Smith, K.L. Sanders, T.Q. Nguyen, D.A. Anggraeni,
and J. Rhamadani for providing tissue samples and to the Monbukagakusho for scholarship funding. RWM Funding for fieldwork
was obtained through grants from the Natural Sciences and Engineering Research Council, Canada (Discovery Grant A3148),
the Royal Ontario Museum (ROM) Foundation, and the ROM Volunteers Fieldwork Committee. All fieldwork was conducted
using approved Animal Use Protocols. Fieldwork in Vietnam was assisted by N.L. Orlov, A. Lathrop, R.H. Bain, V.S. Cao, T.C.
Ho and V.S. Nguyen; export permits were obtained with the assistance of V.S. Cao and the Institute of Ecology and Biological
Resources, Hanoi. Specimens in Hainan Island were obtained while assisting H.-T. Shi, Hainan Normal University, and those
from Yunnan were obtained with the assistance of D.-Q. Rao, Kunming Institute of Zoology and N.L. Orlov; research export
permits were obtained through the Chinese Academy of Sciences.
Times Cited: 1
ISSN: 1055-7903
DOI: 10.1016/j.ympev.2010.03.014
29-char Source Abbrev.: MOL PHYLOGENET EVOL
ISO Source Abbrev.: Mol. Phylogenet. Evol.
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Subject Category: Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity
ISI Document Delivery No.: 608MX
Record 140 of 271
Author(s): Karpkird, T (Karpkird, Thitinun); Wanichweacharungruang, S (Wanichweacharungruang, Supason)
Title: Synthesis and photostability of methoxycinnamic acid modified cyclodextrins
Source: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 212 (1): 56-61 APR 30 2010
Language: English
Author Keywords: Cinnamic acids; Cyclodextrins; UV-filters; Photoisomerization
KeyWords Plus: UV FILTERS; ALPHA-CYCLODEXTRIN; SUNSCREEN AGENT; STABILITY; DELIVERY; SKIN
Abstract: Various cyclodextrins, alpha, beta and gamma, were esterified with 4-methoxy-, 2,4,5- and 2,4,6-trimethoxycinnamic
acids. Upon esterification with beta-cyclodextrin, the photostability of 2,4,5-trimethoxycinnamate increased while no
improvement was observed for 4-methoxycinnamate and 2,4,6-trimethoxycinnamate. However, increase in the photostability of
4-methoxycinnamoyl moiety could be observed when esterified with alpha-CD and that of 2,4,6-trimethoxycinnamoyl moiety
could be observed after being esterified with gamma-CD. These photostability data together with the 2D NMR analyses indicated
that the 4-methoxycinnamoyl, 2,4,5-trimethoxycinnamoyl and 2,4,6-trimethoxy cinnamoyl moieties could enter the alpha-CD, the
beta-CD, and the gamma-CD cavities, respectively. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Karpkird, Thitinun] Kasetsart Univ, Funct Mat Special Res Unit, Dept Chem, Fac Sci, Bangkok 10900, Thailand;
[Wanichweacharungruang, Supason] Chulalongkorn Univ, Sensor Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Karpkird, T, Kasetsart Univ, Funct Mat Special Res Unit, Dept Chem, Fac Sci, 50 Phahonyothin Rd, Bangkok
10900, Thailand.
Funding Agency
Grant Number
Faculty of Science Kasetsart University
TRF-MRG5180279
Kasetsart University Research and Development Institute KURDI-5110507000/2551
This project was supported by Faculty of Science Kasetsart University, Thailand Research Fund (TRF-MRG5180279) and
Kasetsart University Research and Development Institute (KURDI-5110507000/2551). The authors also thank Assist. Prof. Dr.
Tanapat Palaka and Sakulna Wangtong, Department of microbiology, Faculty of Science, Chulalongkorn University for the
cytotoxic test experiment.
Times Cited: 0
ISSN: 1010-6030
DOI: 10.1016/j.jphotochem.2010.03.016
29-char Source Abbrev.: J PHOTOCHEM PHOTOBIOL A-CHEM
ISO Source Abbrev.: J. Photochem. Photobiol. A-Chem.
ISI Document Delivery No.: 608JA
Record 141 of 271
Author(s): Thaiphanit, S (Thaiphanit, Somruedee); Anprung, P (Anprung, Pranee)
Title: PHYSICOCHEMICAL AND FLAVOR CHANGES OF FRAGRANT BANANA (MUSA ACUMINATA AAA GROUP
"GROSS MICHEL") DURING RIPENING
Source: JOURNAL OF FOOD PROCESSING AND PRESERVATION, 34 (3): 366-382 JUN 2010
Language: English
KeyWords Plus: ANTIOXIDANT CAPACITY; VOLATILE COMPOUNDS; FRUIT; COMPONENTS; CAVENDISH;
STORAGE; STARCH; FOODS
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Abstract: The objective of this research was to characterize the physicochemical and flavor changes that occur in ripe Horn
Thong (Musa acuminata AAA Group "Gross Michel") flesh. at stage 6-8. It was found that the higher fresh maturity stage of Horn
Thong at P < 0.05 has the following results: the antioxidant activities, moisture content and reducing sugar are significantly
increased. The titratable acidity, total soluble solid and prebiotic activities' score for Lactobacillus acidophilus LA5 and
Bifidobacterium lactis BB-12 are significantly decreased. The total dietary fiber remains unchanged. Using headspace solid-phase
microextraction and gas chromatography mass spectrometry to characterize volatile compound found that the flavor 20 volatile
compounds (11 esters, 5 alcohols, 3 carbonyls and 1 ketone) are varied on Horn Thong maturity stage. The compounds with the
most aroma impact for ripe Horn Thong flesh at stage 6-8 were 3-methylbutyl butanoate, 3-methyl-1-butyl acetate, 3-methylbutyl
3-methylbutanoate and 2-methylpropyl ethanoate.
Addresses: [Thaiphanit, Somruedee; Anprung, Pranee] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330,
Thailand
Funding Agency
Grant Number
Innovation for the Improvement of Food Safety and Food Quality for New World Economy, Government
Research Budjet, Chulalongkorn University
Funding for this study was provided by graduate school and the integration project: Innovation for the Improvement of Food
Safety and Food Quality for New World Economy, Government Research Budjet, Chulalongkorn University.
Times Cited: 0
ISSN: 0145-8892
DOI: 10.1111/j.1745-4549.2008.00314.x
29-char Source Abbrev.: J FOOD PROCESS PRESERV
ISO Source Abbrev.: J. Food Process Preserv.
ISI Document Delivery No.: 607OD
Record 142 of 271
Author(s): Siripatrawan, U (Siripatrawan, Ubonrat); Harte, BR (Harte, Bruce R.)
Title: Physical properties and antioxidant activity of an active film from chitosan incorporated with green tea extract
Source: FOOD HYDROCOLLOIDS, 24 (8): 770-775 NOV-DEC 2010
Language: English
Author Keywords: Active packaging; Chitosan film; Green tea polyphenols; Film properties; Antioxidant activity
KeyWords Plus: NATURAL ANTIOXIDANTS; SHELF-LIFE; QUALITY; LEAVES; GELATIN; STORAGE; OILS
Abstract: An active film from chitosan incorporated with aqueous green tea extract (GTE) was developed. The effects of GTE
concentrations including 2, 5, 10 and 20% (w/v) of green tea in the film-forming solution on the film properties were determined
by measuring physical properties, total polyphenolic content and antioxidant activity of the active films. Fourier Transform
Infrared (FTIR) spectrometry was carried out to observe the potential modifications of the chitosan films when incorporated with
GTE. The results suggested that incorporation of GTE into chitosan films improved mechanical and water vapor barrier
properties and enhanced polyphenolic content and antioxidant activity of the films. Changes in the FTIR spectra of the chitosan
films were observed when GTE was incorporated, suggesting some interactions occurred between chitosan and the polyphenols
from GTE. This study showed the benefits of incorporation of GTE into chitosan films and the potential for using the developed
film as an active packaging. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Siripatrawan, Ubonrat] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand; [Harte, Bruce
R.] Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USA
Reprint Address: Siripatrawan, U, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Thailand Research Fund RMU-5080063
This research was fully supported by the Thailand Research Fund under funding No. RMU-5080063. The authors would like to
thank Mr. Sarun Binmittor and Scientific & Technology Research Equipment Centre, Chulalongkorn University.
Times Cited: 0
ISSN: 0268-005X
DOI: 10.1016/j.foodhyd.2010.04.003
29-char Source Abbrev.: FOOD HYDROCOLLOID
ISO Source Abbrev.: Food Hydrocolloids
Subject Category: Chemistry, Applied; Food Science & Technology
ISI Document Delivery No.: 608CX
Record 143 of 271
Author(s): Hatrongjit, R (Hatrongjit, Rujirat); Packdibamrung, K (Packdibamrung, Kanoktip)
Title: A novel NADP(+)-dependent formate dehydrogenase from Burkholderia stabilis 15516: Screening, purification and
characterization
Source: ENZYME AND MICROBIAL TECHNOLOGY, 46 (7): 557-561 JUN 7 2010
Language: English
Author Keywords: NADP(+)-dependent formate dehydrogenase; Burkholderia cepacia complex; Burkholderia stabilis 15516
KeyWords Plus: COENZYME SPECIFICITY; CANDIDA-METHYLICA; GENE; CLONING; ENZYME; IDENTIFICATION;
MUTAGENESIS; ALIGNMENT; PROTEIN
Abstract: A novel NADP(+)-dependent formate dehydrogenase (FDH) from five species within the Burkholderia cepacia
complex (BCC) is reported here. These FDHs showed dual coenzyme specificity but preferred NADP(+) over NAD(+), a
property which has not been reported before. The distribution of this gene was determined among 46 strains from 10 species of
the BCC, and was found to be present in several tested strains of B. cepacia, Burkholderia multivorans, Burkholderia
cenocepacia, Burkholderia stabilis and Burkholderia pyrrocinia, but absent in Burkholderia ambifaria, Burkholderia
vietnamiensis, Burkholderia dolosa, Burkholderia anthina and Burkholderia ubonensis. The complete coding sequences of FDH
genes from these five BCC species consisted of 1161 bp encoding a polypeptide of 386 amino acids. The predicted amino acid
sequences showed high sequence identity (91-96%) among the five BCC and 65-70% when compared to those of bacterial
NAD(+)-dependent FDHs. The apparent K, of the recombinant FDH from B. stabilis 15516 were 55.5 mM, 0.16 mM and 1.43
mM for formate, NADP(+) and NAD(+), respectively. Interestingly, the NAD(+)-dependent FDHs contained the conserved
coenzyme binding sequence Gly(Ala)XGlyXXGlyX(17)Asp, while these five NADP(+)-dependent FDHs possessed
GlyXGlyXXGlyX(17)Gln. Gln223Asp mutant can reverse coenzyme preference from NADP to NAD(+). Therefore, Gln223 has
an important role on coenzyme specificity toward NADP(+). (C) 2010 Elsevier Inc. All rights reserved.
Addresses: [Hatrongjit, Rujirat; Packdibamrung, Kanoktip] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330,
Thailand
Reprint Address: Packdibamrung, K, Chulalongkorn Univ, Fac Sci, Dept Biochem, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Chulalongkorn University Fund
This work was supported by the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment
Fund).
Times Cited: 0
ISSN: 0141-0229
23/11/2553 18:37
DOI: 10.1016/j.enzmictec.2010.03.002
29-char Source Abbrev.: ENZYME MICROB TECHNOL
ISO Source Abbrev.: Enzyme Microb. Technol.
Subject Category: Biotechnology & Applied Microbiology
ISI Document Delivery No.: 608UY
Record 144 of 271
Author(s): Wongniam, S (Wongniam, Sirapope); Somana, J (Somana, Jamorn); Swangpol, S (Swangpol, Sasivimon); Seelanan, T
(Seelanan, Tosak); Chareonsap, P (Chareonsap, Piyarat); Chadchawan, S (Chadchawan, Supachitra); Jenjittikul, T (Jenjittikul,
Thaya)
Title: Genetic diversity and species-specific PCR-based markers from AFLP analyses of Thai bananas
Source: BIOCHEMICAL SYSTEMATICS AND ECOLOGY, 38 (3): 416-427 JUN 2010
Language: English
Author Keywords: AFLP; Genetic diversity; Interspecific hybrids; Musa cultivars; DNA fingerprinting
KeyWords Plus: FRAGMENT LENGTH POLYMORPHISM; MUSA-BALBISIANA COLLA; RAPD MARKERS; SECTIONAL
RELATIONSHIPS; MICROSATELLITE MARKERS; ACUMINATA COLLA; DNA-SEQUENCES; AAB GROUP; CULTIVARS;
CHINA
Abstract: A large amount of banana genetic resource has been found in Thailand which is believed to be one of the centers of its
origins. To assess genetic diversity and determine genetic relationships of edible bananas in Thailand, 110 accessions of banana
species and cultivars collected from villages and natural locations were investigated. UPGMA clustering of numerical data from
Amplified Fragment Length Polymorphism (AFLP) patterns showed two large groups which corresponded to genome designations
of Musa acuminata (AA) and Musa balbisiana (BB), the known ancestors of most edible cultivars. The AFLP data suggested that
among Thai bananas, AA and AAA cultivars were closely related to M. acuminata subsp. malaccensis, while some of 'B' genome
contained ones closely related to wild M. balbisiana in Thailand and some may have been imported. Eight species-specific
PCR-based primer pairs, generated from the AFLP results clearly identify 'A' and 'B' genomes within cultivars and hybrids. The
analyses were useful to readily and easily infer progenitors of these cultivars and pronounce wide genetic diversity of the bananas
in Thailand. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Swangpol, Sasivimon; Jenjittikul, Thaya] Mahidol Univ, Fac Sci, Dept Plant Sci, Bangkok 10400, Thailand;
[Somana, Jamorn] Mahidol Univ, Fac Sci, Dept Biochem, Bangkok 10400, Thailand; [Wongniam, Sirapope] Mahidol Univ, Fac
Sci, Master Sci Programme Plant Sci, Dept Plant Sci, Bangkok 10400, Thailand; [Wongniam, Sirapope] Mahidol Univ, Dept
Pharmaceut Bot, Fac Pharm, Bangkok 10400, Thailand; [Seelanan, Tosak; Chadchawan, Supachitra] Chulalongkorn Univ, Dept
Bot, Fac Sci, Bangkok 10330, Thailand; [Chareonsap, Piyarat] Royal Initiat Royal Highness Princess Matra Chakr, Plant Genet
Conservat Project, Bangkok 10303, Thailand
Reprint Address: Swangpol, S, Mahidol Univ, Fac Sci, Dept Plant Sci, Rama VI Rd, Bangkok 10400, Thailand.
Funding Agency
Grant Number
Biodiversity Research and Training (BRT) Programme R_245003
Mahidol University
MRG5080329
MRG5280100
The authors would like to thank all sources of banana leaves and DNA samples and Mr. Samadchai Chattrakhom. We also
would like to acknowledge the Plant Genetic Conservation Project under the Royal Initiative of Her Royal Highness Princess
Maha Chakri Sirindhorn, Bangkok, for laboratory facility. We thank Asst. Prof. Maurice M. Broughton for editorial advice. This
work was financially supported by the Biodiversity Research and Training (BRT) Programme: R_245003 to TS, Mahidol
University and Thailand Research Fund (TRF): MRG5080329 to JS and MRG5280100 to SS.
Times Cited: 1
ISSN: 0305-1978
DOI: 10.1016/j.bse.2010.03.015
29-char Source Abbrev.: BIOCHEM SYST ECOL
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ISO Source Abbrev.: Biochem. Syst. Ecol.
Subject Category: Biochemistry & Molecular Biology; Ecology; Evolutionary Biology
Record 145 of 271
Author(s): Kamlangkla, K (Kamlangkla, K.); Paosawatyanyong, B (Paosawatyanyong, B.); Pavarajarn, V (Pavarajarn, V.);
Hodak, JH (Hodak, Jose H.); Hodak, SK (Hodak, Satreerat K.)
Title: Mechanical strength and hydrophobicity of cotton fabric after SF6 plasma treatment
Source: APPLIED SURFACE SCIENCE, 256 (20): 5888-5897 AUG 1 2010
Language: English
Author Keywords: Cotton; Plasma processing; Mechanical properties
KeyWords Plus: GLOW-DISCHARGE TREATMENT; RADIOFREQUENCY PLASMA; SURFACE-PROPERTIES;
ENHANCEMENT; TEXTILES; GLUCOSE; NYLON
Abstract: Surface treatments to tailor fabric properties are in high demand by the modern garment industry. We studied the effect
of radio-frequency inductively coupled SF6 plasma on the surface characteristics of cotton fabric. The duration of the treatment
and the SF6 pressure were varied systematically. We measured the hydrophobicity of treated cotton as a function of storage time
and washing cycles. We used the weight loss (%) along with the etching rate, the tensile strength, the morphology changes and the
hydrophobicity of the fabric as observables after treatments with different plasma conditions. The weight loss remains below 1%
but it significantly increases when the treatment time is longer than 5 min. Substantial changes in the surface morphology of the
fiber are concomitant with the increased etching rate and increased weight loss with measurable consequences in their mechanical
characteristics. The measured water absorption time reaches the maximum of 210 min when the SF6 pressure is higher than 0.3
Torr. The water contact angle (149 degrees) and the absorption time (210 min) of cotton treated with extreme conditions appear to
be durable as long as the fabric is not washed. X-ray photoelectron spectroscopy analysis reveals that the water absorption time
of the fabric follows the same increasing trend as the fluorine/carbon ratio at the fabric surface and atom density of fluorine
measured by Ar actinometer. (C) 2010 Elsevier B. V. All rights reserved.
Addresses: [Paosawatyanyong, B.; Hodak, Satreerat K.] Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand;
[Paosawatyanyong, B.; Hodak, Satreerat K.] Commiss Higher Educ, ThEP Ctr, Bangkok 10330, Thailand; [Kamlangkla, K.]
Chulalongkorn Univ, Ctr Innovat Nanotechnol, Nanosci & Nanotechnol Program, Bangkok 10330, Thailand; [Pavarajarn, V.]
Chulalongkorn Univ, Dept Chem Engn, Fac Engn, Bangkok 10330, Thailand; [Hodak, Jose H.] Mahidol Univ, Fac Sci, Dept Phys,
Reprint Address: Hodak, SK, Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Research Council of Thailand (NCRT)
The authors are grateful to National Research Council of Thailand (NCRT), Commission on Higher Education, and The 90th
Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment Fund) for the financial support. We thank
Mr. Pichitpol Charoensuppayanan from the Faculty of Fashion and Textile Design, Rajamangala University of Technology Phra
Nakhon for the help of tensile strength measurement. We thank Mr. Sirawat Seaning for assistance with AFM measurement. We
also thank Dr. Jose H. Hodak for valuable discussions about plasma induced fragmentation.
Times Cited: 0
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2010.03.070
ISI Document Delivery No.: 607TX
23/11/2553 18:37
Record 146 of 271
Author(s): Kaewtong, C (Kaewtong, Chatthai); Noiseephum, J (Noiseephum, Jakkapong); Uppa, Y (Uppa, Yuwapon); Morakot, N
(Morakot, Nongnit); Morakot, N (Morakot, Neramit); Wanno, B (Wanno, Banchob); Tuntulani, T (Tuntulani, Thawatchai);
Pulpoka, B (Pulpoka, Buncha)
Title: A reversible E-m-FRET rhodamine-based chemosensor for carboxylate anions using a ditopic receptor strategy
Source: NEW JOURNAL OF CHEMISTRY, 34 (6): 1104-1108 2010
Language: English
KeyWords Plus: SIMULTANEOUS COMPLEXATION; AQUEOUS-MEDIA; RECOGNITION; SENSORS; BINDING;
EMISSION; CATIONS; ION; FLUORESCENCE; SWITCHES
Abstract: A reversible rhodamine-based sensor (L1) capable of undergoing excimer-fluorescent resonance energy transfer
(E-m-FRET) was designed and synthesized using a ditopic receptor strategy. Addition of Cu2+ ions to a solution of L1 induced a
ring-open conformation of spirolactam (E-m-FRET ON), whilst ring closure was induced upon addition of CH3COO(E-m-FRET OFF).
Addresses: [Kaewtong, Chatthai; Noiseephum, Jakkapong; Morakot, Nongnit; Morakot, Neramit; Wanno, Banchob]
Mahasarakham Univ, Supramol Chem Res Unit, Dept Chem, Maha Sarakham 44150, Thailand; [Kaewtong, Chatthai; Noiseephum,
Jakkapong; Morakot, Nongnit; Morakot, Neramit; Wanno, Banchob] Mahasarakham Univ, Ctr Excellence Innovat Chem, Fac Sci,
Maha Sarakham 44150, Thailand; [Uppa, Yuwapon] Rajamangala Univ Technol, Fac Engn, Dept Chem, Khon Kaen 40000,
Thailand; [Tuntulani, Thawatchai; Pulpoka, Buncha] Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit,
Reprint Address: Kaewtong, C, Mahasarakham Univ, Supramol Chem Res Unit, Dept Chem, Maha Sarakham 44150, Thailand.
Funding Agency
Grant Number
Faculty of Science, Mahasarakham University
center of excellence for innovation in chemistry (PERCH-CIC)
The authors gratefully acknowledge financial support from Faculty of Science, Mahasarakham University and the center of
excellence for innovation in chemistry (PERCH-CIC).
Times Cited: 0
ENGLAND
ISSN: 1144-0546
DOI: 10.1039/b9nj00594c
29-char Source Abbrev.: NEW J CHEM
ISO Source Abbrev.: New J. Chem.
ISI Document Delivery No.: 604JQ
Record 147 of 271
Author(s): Sridaeng, D (Sridaeng, Duangruthai); Weingart, JJ (Weingart, Jacob J.); Chantarasiri, N (Chantarasiri, Nuanphun);
Zhe, J (Zhe, Jiang); Hu, JJ (Hu, J. Jack)
Title: Postsynthetic Surface Functionalization, Encapsulation, and Releasing Studies of a Novel Polymer Nanocapsule
Source: JOURNAL OF APPLIED POLYMER SCIENCE, 117 (2): 706-713 JUL 15 2010
Language: English
Author Keywords: multifunctional nanoparticle; polymer nanocapsule; controlled release; drug delivery
KeyWords Plus: DRUG-DELIVERY; RADICAL POLYMERIZATION; AMPHIPHILIC COPOLYMERS; SHELL;
POLY(ALLYLAMINE); SYSTEMS; NANOPARTICLES; ASSEMBLIES
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Abstract: Postsynthetic surface functionalizations of the amphiphilic poly(allyamine)-g-poly(t-butylacrylate) nanocapsule of
50-100 nm diameters are reported. The hydrophobic poly(t-butylacrylate) surface of the polymer nanocapsules were successfully
functionalized with poly(acryla te) and poly(ethylene glycol). These new nanocapsules were investigated for their water
dispersibility, encapsulation and controlled releasing properties with fluorescein, an anionic fluorescence probe, and
5-fluoroitacil, an anticancer drug as the model compounds. The postsynthetic surface funcitionalization approach of the crosslinked polymer nanocapsules shows promise for improving the biocompatibility and aqueous dispersibility of the nanocapules
without disrupting the encapsulation and releasing properties of the polymer nanocapsules. (C) 2010 Wiley Periodicals, Inc. J
Appl Polym Sci 117: 706-713, 2010
Addresses: [Weingart, Jacob J.; Hu, J. Jack] Univ Akron, Dept Chem, Akron, OH 44325 USA; [Sridaeng, Duangruthai;
Chantarasiri, Nuanphun] Chulalongkorn Univ, Fac Sci, Dept Chem, Supramol Chem Res Unit,Program Petrochem, Bangkok
10330, Thailand; [Zhe, Jiang] Univ Akron, Dept Mech Engn, Akron, OH 44325 USA
Reprint Address: Hu, JJ, Univ Akron, Dept Chem, Akron, OH 44325 USA.
Funding Agency
Grant Number
US National Science Foundation
DBI-0649798
ECCS-0708540
Thailand Government Research Fund
UASF
Contract grant sponsor: US National Science Foundation; contract grant numbers: DBI-0649798, ECCS-0708540. Contract grant
sponsors: Thailand Government Research Fund (Golden Jubilee Ph.D. fellowship), UASF (Summer faculty research grant).
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31755
ISI Document Delivery No.: 602TV
Record 148 of 271
Author(s): Sansukcharearnpon, A (Sansukcharearnpon, Aurapan); Wanichwecharungruang, S (Wanichwecharungruang, Supason);
Leepipatpaiboon, N (Leepipatpaiboon, Natchanun); Kerdcharoen, T (Kerdcharoen, Teerakiat); Arayachukeat, S (Arayachukeat,
Sunatda)
Title: High loading fragrance encapsulation based on a polymer-blend: Preparation and release behavior
Source: INTERNATIONAL JOURNAL OF PHARMACEUTICS, 391 (1-2): 267-273 MAY 31 2010
Language: English
Author Keywords: Nanoparticles; Fragrance; Encapsulation; Controlled release; TGA; Essential oil
KeyWords Plus: RESIN MICROCAPSULES; ESSENTIAL OILS; ALLERGENS; LIMONENE
Abstract: The six fragrances, camphor, citronellal, eucalyptol, limonene, menthol and 4-tert-butylcyclohexyl acetate, which
represent different chemical functionalities, were encapsulated with a polymer-blend of ethylcellulose (EC), hydroxypropyl
methylcellulose (HPMC) and poly(vinyl alcohol) (PV(OH)) using solvent displacement (ethanol displaced by water). The
process gave >= 40% fragrance loading capacity with >= 80% encapsulation efficiency at the fragrance to polymer weight ratio of
1:1 and at initial polymer concentrations of 2000-16,000 ppm and the obtained fragrance-encapsulated spheres showed
hydrodynamic diameters of less than 450 nm. The release profile of the encapsulated fragrances, evaluated by both thermal
gravimetric and electronic nose techniques, indicated different release characteristics amongst the six encapsulated fragrances.
Limonene showed the fastest release with essentially no retention by the nanoparticles, while eucalyptol and menthol showed the
slowest release. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Wanichwecharungruang, Supason; Leepipatpaiboon, Natchanun] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok
10330, Thailand; [Sansukcharearnpon, Aurapan; Arayachukeat, Sunatda] Chulalongkorn Univ, Program Petrochem & Polymer Sci,
Bangkok 10330, Thailand; [Sansukcharearnpon, Aurapan] Chulalongkorn Univ, Natl Ctr Petr Petrochem & Adv Mat, Bangkok
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10330, Thailand; [Kerdcharoen, Teerakiat] Mahidol Univ, Fac Sci, Ctr NANO, Dept Phys, Bangkok 10400, Thailand
Reprint Address: Wanichwecharungruang, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Payatai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Commission of Higher Education BRG5280004
The authors thank the Commission of Higher Education-Thailand Research Fund (BRG5280004) and the Ratchadaphiseksomphot endowment fund from Chulalongkorn University for financial support.
Times Cited: 0
ISSN: 0378-5173
DOI: 10.1016/j.ijpharm.2010.02.020
29-char Source Abbrev.: INT J PHARM
ISO Source Abbrev.: Int. J. Pharm.
Subject Category: Pharmacology & Pharmacy
ISI Document Delivery No.: 605JD
Record 149 of 271
Author(s): Bunthid, D (Bunthid, Dusadee); Prasassarakich, P (Prasassarakich, Pattarapan); Hinchiranan, N (Hinchiranan, Napida)
Title: Oxidative desulfurization of tire pyrolysis naphtha in formic acid/H2O2/pyrolysis char system
Source: FUEL, 89 (9): 2617-2622 SEP 2010
Language: English
Author Keywords: Desulfurization; Oxidation; Naphtha; Tire; Char
KeyWords Plus: ACTIVATED CARBON; HYDROGEN-PEROXIDE; TYRE PYROLYSIS; DIESEL FUEL; ACID; OIL;
ADSORPTION; PERFORMANCE; GASOLINE
Abstract: Waste tires are one potential source of alternative energy because of their long chain hydrocarbon with a high calorific
heating value. However, the pyrolysis oil that is derived from waste tires is not appropriate for direct use in a combustion process
due to its high sulfur content. Therefore, the oxidative desulfurization (ODS) process was evaluated for its ability to reduce the
sulfur content of the naphtha fraction distillated from light oil derived from waste tire pyrolysis. The addition of formic acid to pH
of 4.0 in the presence of 25 vol.% hydrogen peroxide (H2O2) and tire pyrolysis char enhanced the level of sulfur removal to ca.
70% due to the simultaneous adsorption and oxidation of sulfurous compounds on the surface of the pyrolysis char. The chemical
treatment to form surface-modified char promoted the benefit for ODS process in the presence of formic acid (pH 4) and H2O2
(25 vol.%) by increasing the sulfur reduction in the pyrolysis naphtha up to 75%. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Hinchiranan, Napida] Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Fuel Res Ctr, Bangkok 10330, Thailand;
Reprint Address: Hinchiranan, N, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Fuel Res Ctr, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Energy Policy and Planning Office, Ministry of Energy
(PERFECTA)
The author would like to acknowledge financial support for this research from the Center for Petroleum, Petrochemicals, and
Advanced Materials, Chulalongkorn University, the Energy Policy and Planning Office, Ministry of Energy and the Project for
Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture (PERFECTA). The authors also
wish to express their thankfulness to Dr. Robert Douglas John Butcher (Publication Counseling Unit, Faculty of Science,
41 of 84
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Chulalongkorn University) for English language editing.
Times Cited: 0
ISSN: 0016-2361
DOI: 10.1016/j.fuel.2010.04.026
29-char Source Abbrev.: FUEL
ISO Source Abbrev.: Fuel
ISI Document Delivery No.: 606AA
Record 150 of 271
Author(s): Tammachote, R (Tammachote, R.); Janklat, S (Janklat, S.); Tongkobpetch, S (Tongkobpetch, S.); Suphapeetiporn, K
(Suphapeetiporn, K.); Shotelersuk, V (Shotelersuk, V.)
Title: Holocarboxylase synthetase deficiency: novel clinical and molecular findings
Source: CLINICAL GENETICS, 78 (1): 88-93 JUL 2010
Language: English
Author Keywords: haplotype analysis; HLCS; holocarboxylase synthetase deficiency; low-dose biotin; mutations; Thai
KeyWords Plus: MULTIPLE CARBOXYLASE DEFICIENCY; MUTATIONS
Abstract: Multiple carboxylase deficiency (MCD) is an autosomal recessive metabolic disorder caused by defective activity of
biotinidase or holocarboxylase synthetase (HLCS) in the biotin cycle. Clinical symptoms include skin lesions and severe
metabolic acidosis. Here, we reported four unrelated Thai patients with MCD, diagnosed by urine organic acid analysis. Unlike
Caucasians, which biotinidase deficiency has been found to be more common, all of our four Thai patients were affected by HLCS
deficiency. Instead of the generally recommended high dose of biotin, our patients were given biotin at 1.2 mg/day. This low-dose
biotin significantly improved their clinical symptoms and stabilized the metabolic state on long-term follow-up. Mutation analysis
by polymerase chain reaction-sequencing of the entire coding region of the HLCS gene revealed the c. 1522C>T (p.R508W)
mutation in six of the eight mutant alleles. This suggests it as the most common mutation in the Thai population, which paves the
way for a rapid and unsophisticated diagnostic method for the ethnic Thai. Haplotype analysis revealed that the c.1522C>T was
on three different haplotypes suggesting that it was recurrent, not caused by a founder effect. In addition, a novel mutation,
c.1513G>C (p.G505R), was identified, expanding the mutational spectrum of this gene.
Addresses: [Tammachote, R.] Chulalongkorn Univ, Fac Sci, Dept Bot, Bangkok, Thailand; [Janklat, S.; Tongkobpetch, S.;
Suphapeetiporn, K.; Shotelersuk, V.] Chulalongkorn Univ, Fac Med, Dept Pediat, Bangkok 10330, Thailand
Reprint Address: Suphapeetiporn, K, King Chulalongkorn Mem Hosp, Dept Pediat, Sor Kor Bldg,11th Floor, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
National Science and Technology Development Agency
We are thankful to Dr Chantragan Srisomsap Phiphobmongkol for her assistance on the biotinidase activity assay. This study
was supported by Chulalongkorn University, National Science and Technology Development Agency, and the Thailand Research
Fund.
Times Cited: 0
ISSN: 0009-9163
DOI: 10.1111/j.1399-0004.2009.01357.x
29-char Source Abbrev.: CLIN GENET
23/11/2553 18:37
ISO Source Abbrev.: Clin. Genet.
Subject Category: Genetics & Heredity
Record 151 of 271
Author(s): Nakason, C (Nakason, Charoen); Wohmang, T (Wohmang, Toha); Kaesaman, A (Kaesaman, Azizon);
Title: Preparation of cassava starch-graft-polyacrylamide superabsorbents and associated composites by reactive blending
Source: CARBOHYDRATE POLYMERS, 81 (2): 348-357 JUN 11 2010
Language: English
Author Keywords: Batch reactor; High water absorbing polymer; Cassava starch; Acrylamide
KeyWords Plus: ACRYLIC-ACID; EXTRUSION; COPOLYMERS; POLYMERIZATION; HYDROGELS; MONOMERS;
WATER
Abstract: Cassava starch-g-polyacrylamide (PAM) was successfully prepared by a reactive batch processing using a specially
designed batch reactor resulting in a superabsorbent polymer (SAP) with water absorption of 605 g/g being obtained under the
optimized reaction conditions. The occurrence of a graft copolymer was confirmed by FT-IR spectra, where it was found to
exhibit all characteristic bands of both starch and acrylamide (AM) units. SEM micrographs of the starch granules showed an
irregular shape and varied particle sizes with a smooth surface, while the graft copolymers had a coarse porous structure and
broad network. Various types of inorganic filler were added to the graft copolymer to prepare the SAP composites (SAPC). It was
found that the SAPC with bentonite clay exhibited the highest water absorption of approximately 730 g/g. Conversely, the
incorporation of silica to the graft copolymer gave a significantly lower water absorption capability than the copolymer alone. (C)
Addresses: [Kiatkamjornwong, Suda] Chulalongkorn Univ, Fac Sci, Dept Imaging & Printing Technol, Multidisciplinary Program
Petrochem & Polymer Sci, Bangkok 10330, Thailand; [Nakason, Charoen; Wohmang, Toha; Kaesaman, Azizon] Prince Songkla
Univ, Fac Sci & Technol, Dept Rubber Technol & Polymer Sci, Ctr Excellence Nat Rubber Technol, Pattani 94000, Thailand
Reprint Address: Kiatkamjornwong, S, Chulalongkorn Univ, Fac Sci, Dept Imaging & Printing Technol, Multidisciplinary
Program Petrochem & Polymer Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
RTA5080004
Publication Consultation Unit of the Research Division, Faculty of Science, Chulalongkorn University
The authors thank the Thailand Research Fund for funding the research project under the Senior Scholarly Consolidation (Grant
no. RTA5080004). Many thanks go to the Prince of Songkla University (Pattani Campus) and Chulalongkorn University for
research facilities and other support from Publication Consultation Unit of the Research Division, Faculty of Science,
Times Cited: 0
ISSN: 0144-8617
DOI: 10.1016/j.carbpol.2010.02.030
ISI Document Delivery No.: 602WT
Record 152 of 271
Author(s): Cherdshewasart, W (Cherdshewasart, Wichai); Sutjit, W (Sutjit, Wandee); Pulcharoen, K (Pulcharoen, Kade);
Chulasiri, M (Chulasiri, Malyn)
Title: Mutagenic and Antimutagenic Effects of the Traditional Herb Used for Treating Erectile Dysfunction, Butea superba Roxb.
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Source: BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY, 74 (5): 923-927 MAY 2010
Language: English
Author Keywords: Butea superba; flavonoid; Ames test; micronucleus test; antimutagenic effect
KeyWords Plus: PUERARIA-MIRIFICA; PLANTS; RATS; MEDICINE; ACTIVATION; FLAVONOIDS; INDUCTION;
GLYCOSIDE; TOXICITY; CELLS
Abstract: Butea superba is a traditional tuberous Thai plant enriched with flavonoids that is used for treating erectile dysfunction.
We investigated the mutagenic and antimutagenic potentials of a B. superba extract by using the pre-incubation method of the Ames
test. Salmonella typhimurium strains TA 98 and TA 100 were applied as the tester strains in the presence and absence of an S9
mixture. Prior to the mutagenic and antimutagenic tests, the survival of the tester strains was measured by treating with the B.
superba extract. The results show that the B. superba extract exhibited dose-dependent cytotoxic effects. Data from the Ames test
revealed that the B. superba extract to be non-mutagenic in the presence and absence of the S9 mixture. In contrast, the B. superba
extract showed antimutagenic potential towards either or both of the tested mutagens: 2-(2-furyl)-3-(5-nitro-2-furyl)-acrylamide
(AF-2) and benzo(a)pyrene (B(a)P) in the respective presence and absence of the S9 mixture, respectively. The plant
antimutagenic activity was confirmed by a rec assay. A further study by micronucleus test demonstrated that the B. superba extract
at the maximum loading volume could induce acute micronucleus formation in the tested animals. The in vitro mutagenic and
antimutagenic assays confirmed the safe consumption of B. superba products at low dose (not more than 781.25 mu g/ml of the
plant extract), but the in vivo genotoxic assay demonstrated the unsafe consumption at a high dose (300 mg/kg of the BW plant
extract or 16 g/kg of the BW plant powder).
Addresses: [Cherdshewasart, Wichai] Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand; [Sutjit, Wandee;
Pulcharoen, Kade] Chulalongkorn Univ, Biotechnol Program, Fac Sci, Bangkok 10330, Thailand; [Chulasiri, Malyn] Mahidol
Univ, Dept Microbiol, Fac Pharm, Bangkok 10400, Thailand
Reprint Address: Cherdshewasart, W, Chulalongkorn Univ, Dept Biol, Fac Sci, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Center for Genetic Engineering and Biotechnology, Ministry of Science and Technology
Thai Government Research Fund (The Bureau of the Budget Office of the Prime Minister)
Thai Government
TKK2555
The authors wish to thank Graduate School, Chulalongkorn University, National Center for Genetic Engineering and
Biotechnology, Ministry of Science and Technology, the Thai Government Research Fund (The Bureau of the Budget Office of
the Prime Minister) and the Thai Government Stimulus Package 2 (TKK2555), under the Project for Establishment of
Comprehensive Center for Innovative Food, Health Products and Agriculture, for research grants.
Times Cited: 0
Publisher: JAPAN SOC BIOSCI BIOTECHN AGROCHEM
Publisher Address: JAPAN ACAD SOC CTR BLDG, 2-4-6 YAYOI BUNKYO-KU, TOKYO, 113, JAPAN
ISSN: 0916-8451
DOI: 10.1271/bbb.90727
29-char Source Abbrev.: BIOSCI BIOTECHNOL BIOCHEM
ISO Source Abbrev.: Biosci. Biotechnol. Biochem.
Subject Category: Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Chemistry, Applied; Food
Science & Technology
ISI Document Delivery No.: 605OK
Record 153 of 271
Author(s): Kheeree, N (Kheeree, Norhameemee); Sangvanich, P (Sangvanich, Polkit); Puthong, S (Puthong, Songchan);
Karnchanatat, A (Karnchanatat, Aphichart)
Title: Antifungal and Antiproliferative Activities of Lectin from the Rhizomes of Curcuma amarissima Roscoe
Source: APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 162 (3): 912-925 OCT 2010
Language: English
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Author Keywords: Lectin; ConA Sepharose; Curcuma amarissima; Antifungal; Antiproliferative
KeyWords Plus: MANNOSE-BINDING LECTIN; HEMAGGLUTINATING ACTIVITY; PHYSICOCHEMICAL
CHARACTERIZATION; ANTITUMOR-ACTIVITY; FUNGAL GROWTH; PURIFICATION; SEEDS; PROTEINS; CANCER;
PROLIFERATION
Abstract: A lectin was purified from the rhizomes of Curcuma amarissima Roscoe by aqueous extraction, fractionation with 80%
saturated ammonium sulfate, and a combination of affinity and gel chromatography on ConA Sepharose and Superdex G-75,
respectively. The molecular mass of the purified lectin was 32.4 kDa, as estimated by sodium dodecyl sulfate-polyacrylamide gel
electrophoresis. The lectin showed no significant specificity in its ability to hemagglutinate erythrocytes from human blood groups
(A, B, AB, and O), but for other animals, it only agglutinated rabbit and rat, and not mouse, guinea pig, goose, and sheep
erythrocytes. The lectin was stable at temperatures below 40A degrees C, but the hemagglutinating activity halved when it was
heated to 45-85A degrees C and was completely lost at 95A degrees C. The hemagglutinating activity was more stable at 80A
degrees C than at 70A degrees C and was rapidly inactivated at 90A degrees C. It showed a maximum hemagglutination activity
within the pH range of 8.0-11.0. The deduced amino acid sequence of an internal tryptic peptide sequence of this purified lectin
showed sequence similarity (homology) to other members of the leucoagglutinating phytohemagglutinin precursor family, whilst
the complete lectin inhibited the in vitro growth of three plant pathogenic fungi, Fusarium oxysporum, Exserohilum turicicum, and
Colectrotrichum cassiicola, at a concentration of 17.5 to 35 A mu g, and showed in vitro cytotoxicity against the BT474 breast
cancer cell line with an IC50 of approximately 21.2 mu g.
Addresses: [Sangvanich, Polkit; Puthong, Songchan; Karnchanatat, Aphichart] Chulalongkorn Univ, Inst Biotechnol & Genet
Engn, Bangkok 10330, Thailand; [Sangvanich, Polkit] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem,
Bangkok 10330, Thailand; [Kheeree, Norhameemee] Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok 10330,
Thailand
Funding Agency
Grant Number
The authors thank the Thailand Research Fund and the 90th Anniversary of Chulalongkorn University fund for financial support
of this research. The Institute of Biotechnology and Genetic Engineering and Biotechnology program, the Faculty of Science,
Chulalongkorn University, are both acknowledged for support and facilities.
Times Cited: 0
ISSN: 0273-2289
DOI: 10.1007/s12010-009-8804-8
ISI Document Delivery No.: 602ZU
Record 154 of 271
Author(s): Sarigaputi, C (Sarigaputi, Chanin); Teerawatananond, T (Teerawatananond, Thapong); Pengpreecha, S (Pengpreecha,
Somchai); Muangsin, N (Muangsin, Nongnuj); Pudhom, K (Pudhom, Khanitha)
Title: Xyloccensin E
Source: ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 66: O1348-U917 Part 6 JUN 2010
Language: English
KeyWords Plus: XYLOCARPUS-GRANATUM; ORTHO ESTERS; LIMONOIDS
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Abstract: The title compound (also known as phragmalin triacetate), C35H42O14, is a phragmalin-type limonoid extracted from
X. rumphii. The molecule consists of eight rings with the orthoacetate group bridged at positions 1, 8 and 9. The two
five-carbocyclic rings (A(1) and A(2)) and the dioxolane ring (G) adopt a distorted envelope conformation. The 1,3-dioxane ring
(E) exists in a chair conformation. The six-carbocyclic rings (B and C) exhibit a twisted-boat conformation. The lactone ring has a
half-chair conformation and the furan ring is planar (r.m.s. deviation = 0.002 angstrom). Rings A(1)/B, A(2)/B, B/C, C/D and C/G
are all cis-fused. The two acetoxy groups attached to ring B and the furan ring attached to the lactone ring are in equatorial
positions. The porous crystal packing exhibits voids of 688 angstrom(3) and weak intermolecular C-H center dot center dot center
dot O interactions. The absolute configuration was assigned on the basis of literature data.
Addresses: [Teerawatananond, Thapong; Pengpreecha, Somchai; Muangsin, Nongnuj; Pudhom, Khanitha] Chulalongkorn Univ,
Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand; [Sarigaputi, Chanin] Chulalongkorn Univ, Fac Sci,
Program Biotechnol, Bangkok 10330, Thailand
Funding Agency
Grant Number
Faculty of Science
A1B1
Thai Government
TKK2555
Financial support from the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphisek Somphot Endowment Fund) is
gratefully acknowledged. The authors also thank the Center for Petroleum, Petrochemicals and Advanced Materials,
Chulalongkorn University, for partial support. Finally, the authors are grateful for research funds from the Faculty of Science
(A1B1), the Thai Government Stimulus Package 2 (TKK2555), under the Project for Establishment of a Comprehensive Center
for Innovative Food, Health Products and Agriculture, for support of the X-ray Crystallographic analysis.
Times Cited: 0
ISSN: 1600-5368
DOI: 10.1107/S1600536810016582
ISI Document Delivery No.: 605DG
Record 155 of 271
Author(s): Jittapiromsak, N (Jittapiromsak, Nawaporn); Sahawat, D (Sahawat, Dusida); Banlunara, W (Banlunara, Wijit);
Sangvanich, P (Sangvanich, Polkit); Thunyakitpisal, P (Thunyakitpisal, Pasutha)
Title: Acemannan, an Extracted Product from Aloe Vera, Stimulates Dental Pulp Cell Proliferation, Differentiation,
Mineralization, and Dentin Formation
Source: TISSUE ENGINEERING PART A, 16 (6): 1997-2006 JUN 2010
Language: English
KeyWords Plus: BONE MORPHOGENETIC PROTEIN-2; ALKALINE-PHOSPHATASE; RAT; PHOSPHOPROTEIN;
SIALOPROTEIN; EXPRESSION; MOUSE; GENE; DENTINOGENESIS; COLLAGEN
Abstract: This study investigated the effect of acemannan (Aloe vera gel polysaccharide) on dentin formation. Primary human
dental pulp cells were treated with acemannan. New DNA synthesis, bone morphogenetic protein-2, alkaline phosphatase activity,
dentin sialoprotein expression, and mineralization were determined by [H-3]-thymidine incorporation, enzyme-linked
immunosorbent assay, biochemical assay, western blotting, and Alizarin Red staining, respectively. Then the upper first molars of
24 male Sprague Dawley rats were intentionally exposed and capped with either acemannan or calcium hydroxide. At day 28, the
teeth were histopathologically examined and evaluated for the degree of inflammation, dentin bridge formation, and pulp tissue
organization. The results revealed that acemannan significantly increased pulp cell proliferation, bone morphogenetic protein-2,
alkaline phosphatase activity, dentin sialoprotein expression, and mineralization, compared with the untreated group. The
acemannan-treated group also exhibited a complete homogeneous calcified dentin bridge and good pulp tissue organization,
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whereas neither was detected in the calcium hydroxide-treated and sham groups. In the acemannan-treated group, either mild or no
inflammation was found, whereas the other groups had various degrees of inflammation. The data suggest that acemannan
promotes dentin formation by stimulating primary human dental pulp cell proliferation, differentiation, extracellular matrix
formation, and mineralization. Acemannan also has pulpal biocompatibility and promotes soft tissue organization.
Addresses: [Thunyakitpisal, Pasutha] Chulalongkorn Univ, Fac Dent, Dept Anat, Dent Biomat Sci Program, Bangkok 10330,
Thailand; [Jittapiromsak, Nawaporn; Sahawat, Dusida] Chulalongkorn Univ, Fac Dent, Grad Sch, Dent Biomat Sci Program,
Bangkok 10330, Thailand; [Banlunara, Wijit] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Sangvanich,
Polkit] Chulalongkorn Univ, Fac Vet Sci, Dept Pathol, Bangkok 10330, Thailand
Reprint Address: Thunyakitpisal, P, Chulalongkorn Univ, Fac Dent, Dept Anat, Dent Biomat Sci Program, Henri Dunant Rd,
Funding Agency
Grant Number
Thai Government
2008-2009
Chulalongkorn University 2007
The authors thank Professor Dr. Visaka Limwongse and Associate Professor Dr. Dolly Methathrathip for their valuable
suggestions, and also Dr. Ngampis Six and Dr. Suwimon Jettanacheawchankit for their outstanding advice. This work was
supported by the Thai Government Research Fund 2008-2009 and by the 90th Anniversary of Chulalongkorn University Fund
(Ratchadaphiseksomphot Endowment Fund) 2007.
Times Cited: 0
Publisher: MARY ANN LIEBERT INC
Publisher Address: 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
ISSN: 1937-3341
DOI: 10.1089/ten.tea.2009.0593
29-char Source Abbrev.: TISSUE ENG PART A
ISO Source Abbrev.: Tissue Eng. Part A
Subject Category: Cell & Tissue Engineering; Biotechnology & Applied Microbiology; Cell Biology
ISI Document Delivery No.: 602UQ
Record 156 of 271
Author(s): Pornpienpakdee, P (Pornpienpakdee, Panisa); Singhasurasak, R (Singhasurasak, Ronnawich); Chaiyasap, P
(Chaiyasap, Pongsathorn); Pichyangkura, R (Pichyangkura, Rath); Bunjongrat, R (Bunjongrat, Ruengwit); Chadchawan, S
(Chadchawan, Supachitra); Limpanavech, P (Limpanavech, Patchra)
Title: Improving the micropropagation efficiency of hybrid Dendrobium orchids with chitosan
Source: SCIENTIA HORTICULTURAE, 124 (4): 490-499 MAY 1 2010
Language: English
Author Keywords: Orchid; Dendrobium; PLB; Protocorm-like body; Chitosan; Genetic variation; In vitro propagation
KeyWords Plus: DIFFERENT MOLECULAR-WEIGHTS; GENE-EXPRESSION; PLANT-GROWTH; REGENERATION;
EXPLANTS; CULTURE; TOMATO; CALLUS; CELLS
Abstract: The appropriate chitosan types and concentrations for enhancing the in vitro micropropagation of Dendrobium 'Eiskul'
were studied using 70,80 and 90% N-deacetylated polymeric (P-70, P-80 and P-90) and oligomeric (O-70, O-80 and O-90) forms
of crab (Portunus pelagicus) chitosan. For the initial protocorm-like body (PLO) multiplication, the application of 10 mg/L of
P-70 or 20 mg/L of P-90 was optimal, although 10 mg/L of P-80 and O-70 were also effective, and attained maximal PLB
replication rates without increasing the detectable levels of somaclonal variation. However, during PLO-shoot induction, 10 or 20
mg/L of O-80 was the most appropriate chitosan and also induced further PLB formation. For plantlet regeneration, the addition of
10 mg/L of O-80 or P-80 gave the best quantity and quality, respectively, of plantlets. Finally, 20 mg/L of P-70 chitosan as a
supplement during exflasking enhanced both the survival rate and the growth of the plantlets at one month after exflasking.
Together, these data reveal a potentially beneficial and applicable protocol for commercial orchid micropropagation. (C) 2010
Addresses: [Pornpienpakdee, Panisa; Singhasurasak, Ronnawich; Chaiyasap, Pongsathorn; Bunjongrat, Ruengwit; Chadchawan,
Supachitra; Limpanavech, Patchra] Chulalongkorn Univ, Dept Bot, Fac Sci, Environm & Plant Physiol Res Unit, Bangkok 10330,
Thailand; [Pornpienpakdee, Panisa; Singhasurasak, Ronnawich; Chaiyasap, Pongsathorn; Pichyangkura, Rath; Bunjongrat,
Ruengwit; Chadchawan, Supachitra; Limpanavech, Patchra] Chulalongkorn Univ, Ctr Chitin Chitosan Biomat, Bangkok 10330,
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Thailand; [Pichyangkura, Rath] Chulalongkorn Univ, Dept Biochem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Chadchawan, S, Chulalongkorn Univ, Dept Bot, Fac Sci, Environm & Plant Physiol Res Unit, Phyatai St,
Funding Agency
Grant Number
Agricultural Research Development Agency (Public organization) 0 0 6/2549
Faculty of Science, Chulalongkorn University (CU)
Rajadaphisek Sompoj Endowment Fund
This research was supported by the Agricultural Research Development Agency (Public organization), grant no. 0 0 6/2549 and
Research Funds from the Faculty of Science, Chulalongkorn University (CU). EPPRU was supported by the Rajadaphisek
Sompoj Endowment Fund. PC was supported by the honor program scholar, (CU). We thank Dr. Robert Bucher, PCU, Faculty of
Science, Chulalongkorn University, for useful comments and English language proof reading.
Times Cited: 0
ISSN: 0304-4238
DOI: 10.1016/j.scienta.2010.02.008
29-char Source Abbrev.: SCI HORT-AMSTERDAM
ISO Source Abbrev.: Sci. Hortic.
Subject Category: Horticulture
ISI Document Delivery No.: 601OH
Record 157 of 271
Author(s): Pechwang, J (Pechwang, Jaraslak); Sihanonth, P (Sihanonth, Prakitsin); Pornpakakul, S (Pornpakakul, Surachai);
Muangsin, N (Muangsin, Nongnuj); Piapukiew, J (Piapukiew, Jittra); Vangnai, A (Vangnai, Alisa); Chaichit, N (Chaichit,
Narongsak); Chuchawankul, S (Chuchawankul, Siriporn); Petsom, A (Petsom, Amorn)
Title: Biotransformation of ent-kaur-16-en-19-oic acid by Psilocybe cubensis
Source: NATURAL PRODUCT RESEARCH, 24 (10): 905-914 2010
Language: English
Author Keywords: Psilocybe cubensis; biotransformation; ent-kaur-16-en-19-oic acid; cytotoxicity; leukaemia K562
KeyWords Plus: KAURANE DITERPENOIDS; ANNONA-GLABRA; DERIVATIVES
Abstract: Biotranformation of ent-kaur-16-en-19-oic acid (1) using Psilocybe cubensis resulted in hydroxylated products. After
two days of incubation, ent-16,17-dihydroxy-kauran-19-oic acid (2) was isolated. After further incubation for nine days, two
novel metabolites, ent-12,16,17-trihydroxy-kauran-19-oic acid (3) and ent-11,16,17-trihydroxy-kauran-19-oic acid (4), were
obtained. The metabolites were identified by spectroscopic methods and X-ray crystallography. Compounds 1-4 were evaluated
for their cytotoxic properties against the human leukaemia K562 cell line; only compound 1 showed moderate activity.
Addresses: [Pechwang, Jaraslak; Petsom, Amorn] Chulalongkorn Univ, Fac Sci, Biotechnol Programme, Bangkok, Thailand;
[Sihanonth, Prakitsin] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok, Thailand; [Pornpakakul, Surachai; Muangsin,
Nongnuj; Petsom, Amorn] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok, Thailand; [Piapukiew,
Jittra] Chulalongkorn Univ, Fac Sci, Dept Bot, Bangkok, Thailand; [Vangnai, Alisa] Chulalongkorn Univ, Fac Sci, Dept Biochem,
Bangkok, Thailand; [Chaichit, Narongsak] Thammasat Univ, Dept Phys, Fac Sci & Technol, Pathum Thani, Thailand;
[Chuchawankul, Siriporn] Chulalongkorn Univ, Fac Allied Hlth Sci, Dept Transfus Med, Bangkok, Thailand
Reprint Address: Petsom, A, Chulalongkorn Univ, Fac Sci, Biotechnol Programme, Bangkok, Thailand.
Funding Agency
Grant Number
Royal Golden Jubilee PhD scholarship
Graduate School and Program of Biotechnology, Faculty of Science, Chulalongkorn University
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We are grateful to the Royal Golden Jubilee PhD scholarship to J. Pechwang. We also thank the Department of Microbiology,
Faculty of Science, Chulalongkorn University for the P. cubensis, the Department of Chemistry, Faculty of Science,
Chulalongkorn University for laboratory facilities, and the Graduate School and Program of Biotechnology, Faculty of Science,
Chulalongkorn University for partial financial support.
Times Cited: 0
ISSN: 1478-6419
DOI: 10.1080/14786410802420739
29-char Source Abbrev.: NAT PROD RES
ISO Source Abbrev.: Nat. Prod. Res.
Subject Category: Chemistry, Applied; Chemistry, Medicinal
ISI Document Delivery No.: 600SF
Record 158 of 271
Author(s): Chokpaiboon, S (Chokpaiboon, Supichar); Sommit, D (Sommit, Damrong); Teerawatananond, T (Teerawatananond,
Thapong); Muangsin, N (Muangsin, Nongnuj); Bunyapaiboonsri, T (Bunyapaiboonsri, Taridaporn); Pudhom, K (Pudhom,
Khanitha)
Title: Cytotoxic Nor-chamigrane and Chamigrane Endoperoxides from a Basidiomycetous Fungus
Source: JOURNAL OF NATURAL PRODUCTS, 73 (5): 1005-1007 MAY 2010
Language: English
KeyWords Plus: LAURENCIA; SESQUITERPENE; CHEMOSENSITIVITY; METABOLITES; ASSAY
Abstract: A new nor-chamigrane endoperoxide, merulin A (1), and two new chamigrane endoperoxides, merulins B and C (2, 3),
were isolated from the culture broth extract of an endophytic fungus of Xylocarpus granatum. Their structures were elucidated on
the basis of spectroscopic, mainly NMR and MS, data. X-ray crystallographic analysis confirmed the structure of 1. Compounds 1
and 3 displayed significant cytotoxicity against human breast (BT474) and colon (SW620) cancer cell lines.
Addresses: [Teerawatananond, Thapong; Muangsin, Nongnuj; Pudhom, Khanitha] Chulalongkorn Univ, Res Ctr Bioorgan Chem,
Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Bunyapaiboonsri, Taridaporn] Natl Ctr Genet Engn & Biotechnol BIOTEC,
Pathum Thani 12120, Thailand; [Chokpaiboon, Supichar] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330,
Thailand; [Sommit, Damrong] Mahanakorn Univ Technol, Fac Sci, Dept Chem, Bangkok 10530, Thailand
Funding Agency
Grant Number
Bioresource Research Network (BIOTEC)
Thai Government Stimulus Package
TKK2555
This work was financially supported by The 90th Anniversary of Chulalongkorn University Fund (Ratchadaphisek Somphot
Endowment Fund), The Thailand Graduate Institute of Science and Technology (TGIST), Bioresource Research Network
(BIOTEC), Center for Petroleum, Petrochemicals, and Advanced Materials, and the Thai Government Stimulus Package
(TKK2555) under the Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture.
We also thank Mr. N. Boonyuen (BIOTEC) for fungal identification.
Times Cited: 0
ISSN: 0163-3864
DOI: 10.1021/np100103j
23/11/2553 18:37
ISI Document Delivery No.: 601RI
Record 159 of 271
Author(s): Saiyood, S (Saiyood, S.); Vangnai, AS (Vangnai, A. S.); Thiravetyan, P (Thiravetyan, P.); Inthorn, D (Inthorn, D.)
Title: Bisphenol A removal by the Dracaena plant and the role of plant-associating bacteria
Source: JOURNAL OF HAZARDOUS MATERIALS, 178 (1-3): 777-785 JUN 15 2010
Language: English
Author Keywords: Bisphenol A; Dracaena plant; Plant-associating bacteria; Plant-associating Enterobacter sp.; Plant-associating
Bacillus sp
KeyWords Plus: COLORIMETRIC METHOD; BIODEGRADATION; METABOLISM; DEGRADATION; LEACHATE; CELLS
Abstract: Dracaena sanderiana and Dracaena fragrans plants, as representatives of native, tropical, evergreen plants with fibrous
root systems, were evaluated for bisphenol A (BPA) tolerance and uptake capability. D. sanderiana demonstrated significantly
higher BPA removal capability than D. fragrans. Therefore, it was chosen for further study. D. sanderiana tolerated BPA toxicity
levels up to 80 mu M, while higher BPA concentrations damaged the plant. In the sterile hydroponic system with an initial BPA
concentration of 20 mu M, the plant could uptake approximately 50% of the BPA. The plant's ability to translocate BPA was
confirmed by the detection of BPA that accumulated at the roots and stems, but not at the leaves of the plant. Upon BPA exposure,
the D. sanderiana secreted extracellular plant mucilage as a protective barrier to the toxic compound. In the non-sterile treatment,
the BPA dissipation was contributed not only by the D. sanderiana plant, but also by the co-existing microbes. The BPA reached
85% of the initial concentration at 20 mu M. Among the six plant-associating bacterial isolates, Bacillus cereus strain BPW4 and
Enterobacter sp. strain BPW5 colonized the D. sanderiana root surface and facilitated BPA dissipation in the hydroponic treatment
system. In addition, the success of the BPA treatment in the hazardous waste landfill leachate demonstrated the potential
application of D. sanderiana plant in the phytoremediation of BPA contaminated wastewater or industrial leachate. (C) 2010
Addresses: [Saiyood, S.; Inthorn, D.] Mahidol Univ, Ctr Environm Hlth Toxicol & Management Chem, Dept Environm Hlth Sci,
Bangkok 10400, Thailand; [Vangnai, A. S.] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand; [Vangnai, A.
S.] Chulalongkorn Univ, NCE EHWM, Bangkok 10330, Thailand; [Thiravetyan, P.] King Mongkuts Univ Technol Thonburi, Sch
Bioresources & Technol, Bangkok 10150, Thailand
Reprint Address: Inthorn, D, Mahidol Univ, Ctr Environm Hlth Toxicol & Management Chem, Dept Environm Hlth Sci, Bangkok
10400, Thailand.
Funding Agency
Grant Number
Commission on Higher Education (CHED)
The research was financially supported by the Thailand Research Fund (TRF) and the Commission on Higher Education
(CHED).
Times Cited: 0
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2010.02.008
29-char Source Abbrev.: J HAZARD MATER
ISO Source Abbrev.: J. Hazard. Mater.
Subject Category: Engineering, Environmental; Engineering, Civil; Environmental Sciences
ISI Document Delivery No.: 601JW
Record 160 of 271
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Author(s): Buntem, R (Buntem, Radchada); Intasiri, A (Intasiri, Amarawan); Lueangchaichaweng, W (Lueangchaichaweng,
Warunee)
Title: Facile synthesis of silica monolith doped with meso-tetra(p-carboxyphenyl)-porphyrin as a novel metal ion sensor
Source: JOURNAL OF COLLOID AND INTERFACE SCIENCE, 347 (1): 8-14 JUL 1 2010
Language: English
Author Keywords: Metal ion sensor; Optical sensor; Porphyrin-doped silica monolith; Sol gel silica
KeyWords Plus: SOL-GEL GLASS; OPTICAL SENSOR; SIO2 GELS; PORPHYRIN; SYSTEMS; COBALT; LEAD
Abstract: A novel metal ion sensor was prepared using silica monolith doped with meso-tetra(p-carboxyphenyl)porphyrin. The
doped material was prepared using TEOS:EtOH:H2O:HCl:porphyrin molar ratios of 1:5:7:3.1 x 10(-2):2.3 x 10(-5),
respectively. The mixture was kept 16 days for the gelation process and then the wet gel was dried at 55-60 degrees C for 3 days.
The porphyrin-doped monolith obtained was kept in 1 M metal salt solution for 2 days. The visible spectrum of the metalcoordinated porphyrin-doped monolith was compared with the uncoordinated porphyrin-doped monolith. The spectra show the
characteristic maxima for Cu2+ at 543 nm, for Zn2+ at 522, 559, and 596 nm, for Pb2+ at 531 and 559 nm, and for Ni2+ at 522
and 551 nm. The metal coordinated to the silica monolith could be removed by washing with 1 M HNO3. However the Cu2+
could not be eluted by acidic solution due to its strong bonding to the porphyrin. The results show that this porphyrin-doped
monolithic biomaterial is a promising sensor for metal ions in wastewater and other harsh environments. Crown Copyright (C)
2010 Published by Elsevier Inc. All rights reserved.
Addresses: [Buntem, Radchada; Lueangchaichaweng, Warunee] Silpakorn Univ, Fac Sci, Dept Chem, Nakhon Pathom 73000,
Thailand; [Intasiri, Amarawan] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Reprint Address: Buntem, R, Silpakorn Univ, Fac Sci, Dept Chem, Nakhon Pathom 73000, Thailand.
Times Cited: 0
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2010.03.035
29-char Source Abbrev.: J COLLOID INTERFACE SCI
ISO Source Abbrev.: J. Colloid Interface Sci.
ISI Document Delivery No.: 602RY
Record 161 of 271
Author(s): Teerawatananond, T (Teerawatananond, Thapong); Chaichit, N (Chaichit, Narongsak); Muangsin, N (Muangsin,
Nongnuj)
Title: Co-crystal Structure of 11-Hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one and 11-Hydroxy-2,3,9trimethoxy-chromeno[3,4-b]chromene-6,12-dione
Source: JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, 40 (7): 591-596 JUL 2010
Language: English
Author Keywords: Co-crystal; Stemonone; Hydrogen bonding; Rotenoids
KeyWords Plus: AMORPHA-FRUTICOSA; 6-DEOXYCLITORIACETAL; CONSTITUENTS; ROTENOIDS
Abstract: A 1:1 co-crystal structure of 11-hydroxy-2,3,9-trimethoxy-6H-chromeno[3,4-b]chromen-12-one and 11-hydroxy-2,3,9trimethoxy-chromeno[3,4-b]chromene-6,12-dione (stemonone) was crystallized from the reaction mixture of 6-deoxyclitoriacetal
and methanesulfonyl chloride, and its structure was characterized by X-ray diffraction. This co-crystal crystallizes in a triclinic
crystal system, space group P(-1) with unit cell parameters of a = 8.1317(3) angstrom, b = 9.8224(4) angstrom, c = 10.7268(3)
angstrom, alpha = 78.116(1)degrees, beta = 77.463(1)degrees, gamma = 77.140(1)degrees, Z = 2 and V = 804.11(3) angstrom(3).
The crystal structure was solved by direct methods and refined by full-matrix least-squares on F-2 to final values of R-1 = 0.0501
and wR(2) = 0.1520.
Addresses: [Teerawatananond, Thapong; Muangsin, Nongnuj] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem,
Bangkok 10330, Thailand; [Chaichit, Narongsak] Thammasat Univ, Fac Sci & Technol, Dept Phys, Pathum Thani 12120, Thailand
Reprint Address: Muangsin, N, Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Center for Petroleum, Petrochemicals and Advanced Materials
A1-B1 project
SP2 project
Research Centre for Bioorganic Chemistry (RCBC), Chulalongkorn University
We would like to thank the Organizing Committee for a bursary to attend the XXI IUCr 2008 Congress, The Thailand Research
Fund (TRF), and Center for Petroleum, Petrochemicals and Advanced Materials, the A1-B1 project, the SP2 project, the
Research Centre for Bioorganic Chemistry (RCBC), Chulalongkorn University, for financial support.
Times Cited: 0
ISSN: 1074-1542
DOI: 10.1007/s10870-010-9702-1
29-char Source Abbrev.: J CHEM CRYSTALLOGRAPHY
ISO Source Abbrev.: J. Chem. Crystallogr.
Subject Category: Crystallography; Spectroscopy
ISI Document Delivery No.: 602DT
Record 162 of 271
Author(s): Changul, C (Changul, Chulalak); Sutthirat, C (Sutthirat, Chakkaphan); Padmanahban, G (Padmanahban, G.);
Tongcumpou, C (Tongcumpou, Chantra)
Title: Chemical characteristics and acid drainage assessment of mine tailings from Akara Gold mine in Thailand
Source: ENVIRONMENTAL EARTH SCIENCES, 60 (8): 1583-1595 JUN 2010
Language: English
Author Keywords: Tailings; Gold mine; Heavy metals; ABA; AMD; NAG
KeyWords Plus: OXIDATION
Abstract: Acid Mine Drainage (AMD) is a great concern in many abandoned mines because of its adverse effect on the
environment. In mining processes, many kinds of wastes are produced. These wastes may become eventually sources of
environmental degradation. The focus of this study is the geochemical characterization of the end-processed tailings generated by
Akara Gold Mine, the biggest gold mine in Thailand. Tailing samples were systematically collected for analyses of chemical and
mineralogical compositions. As a result, their quantitative chemical analyses are slightly different from place to place, but mineral
components cannot be clearly differentiated. For instance, it may be assumed that the end-processed tailings, which were a
mixture between high and low grade concentrates, would have similar mineral components. However, the little variation of
chemical composition may be caused by the ore refining processes that are somehow varied in proportion to chemical additives,
alkali cyanide and quick lime in particular. In addition, clay composition in ore-bearing layers may also influence alumina content
of tailings, accordingly. Distribution of the tailings is not related to depth and distance of the tailing storage pond because the
disposal has sped them over the pond during operation. Total heavy metals of the tailing samples were analyzed on the basis of the
EPA 3052 method. Consequently, the most toxic elements (e.g., Co, Cu, Cd, Cr, Pb, Ni and Zn) were found falling within the
standard of Thailand Soil Quality Standards for Habitat and Agriculture. Only Mn appears to have higher content than the
standard. In addition, leaching tests proved that these tailings contain low metal concentrations. As a result, at pH 2, Mn can leach
out exceeding the Thailand Surface Water Quality Standard for Agricultural (Mn < 1 ppm) and the Thailand Industrial Effluent
Standard (< 5 ppm). Although leachate at pH 4 and neutral conditions contains lower Mn than the Industrial Effluent Standard it
still exceeds the surface water quality standard. Interestingly, Pb can be leached out exceeding both standards (0.2 ppm for the
industrial effluent standard and 0.05 ppm for the surface water quality standard). For Ni leaching, its concentration is lower than
the Industrial Effluent Standard at all pH conditions but still exceeds the Surface Water Standard at pH 2 and 4. This information
should be taken into consideration for further environmental monitoring. Acid generating potential of the tailings was estimated
using acid-base accounting (ABA) and net acid generation (NAG) tests. The results of ABA and NAG tests show that the tailing
samples contain a high amount of sulfur. However, they also contain high acid neutralization capacity. Consequently, these tailings
may not have potential to generate acid drainage; in the other words, they can be classified as a non-acid forming (NAF) material.
However, since these tailings contain some heavy metals (e.g., Ni, Mn and Pb) that are observed in leachates exceeding the
standards at low pH, the AMD conditions may lead to heavy metal release. Therefore, prevention of oxidizing process and
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dissolution should be considered with great care. In addition, Mn and Pb can also be leached at neutral conditions. Barrier of air
and water, clay layer for example, should be placed over the tailings pound before covering by topsoil for re-vegetation. Growing
native grass is recommended for stabilization of the surface and reducing erosion rate. Monitoring of water quality should also be
carried out annually.
Addresses: [Sutthirat, Chakkaphan] Chulalongkorn Univ, Fac Sci, Dept Geol, Bangkok 10330, Thailand; [Changul, Chulalak;
Sutthirat, Chakkaphan; Tongcumpou, Chantra] Chulalongkorn Univ, Natl Ctr Excellence Environm & Hazardous Waste Ma, Int
Postgrad Programs Environm Management Hazardo, Bangkok 10330, Thailand; [Sutthirat, Chakkaphan; Tongcumpou, Chantra]
Chulalongkorn Univ, Environm Res Inst, Bangkok 10330, Thailand; [Padmanahban, G.] N Dakota State Univ, Dept Civil Engn,
Fargo, ND 58105 USA
Reprint Address: Sutthirat, C, Chulalongkorn Univ, Fac Sci, Dept Geol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Excellence Centre for Environmental and Hazardous Waste Management
This research could not have been developed without financial support from the National Excellence Centre for Environmental
and Hazardous Waste Management and Graduate Scholarship program, of the Chulalongkorn University 90th Anniversary Fund.
Both sources of supports are gratefully acknowledged. A great thank is extended to Yaowanud Chandung and Supanit Supananti
from the Akara Gold Mine for permission to conduct sample collection. Thananun Pratummin and Veerasak Lunvongsa provided
very good assistance in the field work and data collection. Jiraprapa Neampan and Sopit Poompuang from Geology Department,
Chulalongkorn University also assisted in the experiments.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1866-6280
DOI: 10.1007/s12665-009-0293-0
29-char Source Abbrev.: ENVIRON EARTH SCI
ISO Source Abbrev.: Environ. Earth Sci.
Subject Category: Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
Record 163 of 271
Author(s): Wongsangwattana, W (Wongsangwattana, Wannapa); Kaulpiboon, J (Kaulpiboon, Jarunee); Ito, K (Ito, Kazuo);
Pongsawasdi, P (Pongsawasdi, Piamsook)
Title: Synthesis of cellobiose-containing oligosaccharides by intermolecular transglucosylation of cyclodextrin
glycosyltransferase from Paenibacillus sp A11
Source: PROCESS BIOCHEMISTRY, 45 (6): 947-953 JUN 2010
Language: English
Author Keywords: Acceptor; Cyclodextrin glycosyltransferase (CGTase); Glucosyl donor; Oligosaccharides; Paenibacillus;
Transglucosylation
KeyWords Plus: ENZYMATIC-SYNTHESIS; CYCLOMALTODEXTRIN GLUCANOTRANSFERASE; BACILLUSSTEAROTHERMOPHILUS; TRANSGLYCOSYLATION REACTION; ACCEPTOR SPECIFICITY; GLUCOSIDASE;
SUCROSE; DONOR
Abstract: Intermolecular transglucosylation of cyclodextrin glycosyltransferase (CGTase) was investigated for its use in
oligosaccharide synthesis. From the kinetic parameters of the CGTase-catalyzed transglucosylation reaction, using
beta-cyclodextrin (beta-CD) as the glucosyl donor and various saccharides or derivatives as acceptors, the efficient acceptors of
the Paenibacillus sp. All enzyme were glucose, sorbose, lactose and cellobiose. Amongst these acceptors, cellobiose showed the
highest k(cat)/K-m value. The transglucosylation yields of the reactions for cellobiose, sorbose and glucose acceptors were 78,
57 and 54%, respectively, making cellobiose the most efficient acceptor of the tested saccharides in coupling with beta-CD. The
optimal condition for the coupling reaction was determined as: 2%(w/v)beta-CD and 0.5% (w/v)cellobiose, incubated with 64
U/mL of CGTase at 30 degrees C for 2 h. Two main transfer products detected by HPLC, PC1 and PC2, with retention times of
3.81 and 4.42 min, respectively, and a product ratio of 3:1, had a molecular mass of 504 and 666 Da, respectively, as analyzed by
mass spectrometry. The structures suggested by NMR were a trisaccharide and a novel tetrasaccharide-containing cellobiose of
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the structures glc (alpha 1 -> 4) glc (beta 1 -> 4) glc and glc(alpha 1 -> 4) glc (alpha 1 -> 4) glc (beta 1 -> 4) glc, respectively.
The products were found to be resistant to hydrolysis by a-amylase. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Wongsangwattana, Wannapa; Pongsawasdi, Piamsook] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330,
Thailand; [Kaulpiboon, Jarunee] Thammasat Univ, Fac Med, Dept Preclin Sci Biochem, Pathum Thani 12121, Thailand; [Ito,
Kazuo] Osaka City Univ, Grad Sch Sci, Dept Biol, Osaka 5588585, Japan
Reprint Address: Pongsawasdi, P, Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Graduate School
Thai Government
TKK2555
Special thanks to Dr. P. Kittakoop for his help in mass spectrometric determination, and to Dr. W. Chavasiri of the Chemistry
Department, for interpreting the NMR spectra. Thanks to Dr. Robert Butcher of the Publication Counseling Unit of the Faculty of
Science for editing the manuscript. This work was supported by grants from the Graduate School, and from the
Rachadapiseksompote Endowment Fund, of Chulalongkorn University, to the Starch and Cyclodextrin Research Unit. The
support from the Thai Government Stimulus Package 2 (TKK2555) under the Project PERFECTA is also acknowledged.
Times Cited: 0
ISSN: 1359-5113
DOI: 10.1016/j.procbio.2010.02.024
29-char Source Abbrev.: PROCESS BIOCHEM
ISO Source Abbrev.: Process Biochem.
Subject Category: Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Engineering, Chemical
ISI Document Delivery No.: 599JO
Record 164 of 271
Author(s): Natenapit, M (Natenapit, Mayuree); Thongboonrithi, C (Thongboonrithi, Chaivej)
Title: Effective higher-order nonlinear coefficients of composites with weakly nonlinear media
Source: PHYSICA B-CONDENSED MATTER, 405 (10): 2367-2375 MAY 15 2010
Language: English
Author Keywords: Weakly nonlinear host media; Third-order field equation; Higher-order effective nonlinear coefficients
KeyWords Plus: EFFECTIVE DIELECTRIC RESPONSE; SPECTRAL REPRESENTATION-THEORY; EFFECTIVE
CONDUCTIVITY; OPTICAL RESPONSE; AC
Abstract: The field equations, based on the third-order perturbation expansion of electrostatic potential, are derived, and our
general formulae for higher-order effective nonlinear coefficients based on the energy definition, are presented and applied to
dielectric composites consisting of dilute linear cylindrical inclusions randomly dispersed in a weakly nonlinear host media. The
effective nonlinear coefficients are determined up to the ninth order. In addition, the results are also compared to those obtained
using the average field method and likely to provide more accurate predictions of effective higher-order nonlinear responses. (C)
2010 Elsevier B.V. All rights reserved.
Addresses: [Natenapit, Mayuree; Thongboonrithi, Chaivej] Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Natenapit, M, Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
graduate School of Chulalongkorn University
The authors are grateful to the graduate School of Chulalongkorn University for a research grant to support this work
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Times Cited: 0
ISSN: 0921-4526
DOI: 10.1016/j.physb.2010.02.043
29-char Source Abbrev.: PHYSICA B
ISO Source Abbrev.: Physica B
ISI Document Delivery No.: 597QX
Record 165 of 271
Author(s): Boonchom, B (Boonchom, Banjong); Puttawong, S (Puttawong, Spote)
Title: Thermodynamics and kinetics of the dehydration reaction of FePO4 center dot 2H(2)O
Source: PHYSICA B-CONDENSED MATTER, 405 (9): 2350-2355 MAY 1 2010
Language: English
Author Keywords: Inorganic compounds; Thermogravimetric analysis (TGA); Non-isothermal kinetics; Thermodynamic
properties
KeyWords Plus: THERMAL-DECOMPOSITION; SPONTANEOUS PRECIPITATION; NONISOTHERMAL KINETICS;
THERMOGRAVIMETRIC DATA; AQUEOUS-SOLUTIONS; SPECTROSCOPY; PRECURSOR; LIFEPO4; MIXTURE
Abstract: The thermal decomposition kinetics of FePO4 center dot 2H(2)O in dynamical air atmosphere was studied by mean
TG-DTG-DTA. The stage and product of the thermal decomposition were determined. A number of kinetic models and calculation
procedures were used to determine the kinetic triplet and thermodynamic parameters characterizing the dehydration process. The
obtained activation energy and most kinetic model indicate the single kinetic mechanism and three-dimension diffusion as
"Ginstling-Brounstein equation (D4 model)", respectively. The thermodynamic functions (Delta H*. Delta G* and Delta S*) of the
dehydration reaction are calculated by the activated complex theory and indicate that the process is non-spontaneous without
connecting with the introduction of heat. The kinetic and thermodynamic results were satisfactory which present good correlation
with a linear correlation coefficient close to unit a low standard deviation. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Boonchom, Banjong] King Mongkuts Inst Technol Ladkrabang, Chumphon 86160, Thailand; [Puttawong, Spote]
Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand
Reprint Address: Boonchom, B, King Mongkuts Inst Technol Ladkrabang, Chumphon Campus,17-1 M 6 Pha Thiew Dist,
Chumphon 86160, Thailand.
Funding Agency
Grant Number
Commission on Higher Education (CHE)
Ministry of Education, Thailand
This work is financially supported by the Thailand Research Fund (TRF), the Commission on Higher Education (CHE) and
Research Grant for New Scholar, Ministry of Education, Thailand.
Times Cited: 1
ISSN: 0921-4526
DOI: 10.1016/j.physb.2010.02.046
29-char Source Abbrev.: PHYSICA B
ISO Source Abbrev.: Physica B
ISI Document Delivery No.: 596XQ
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Record 166 of 271
Author(s): Eab, CH (Eab, C. H.); Lim, SC (Lim, S. C.)
Title: Fractional generalized Langevin equation approach to single-file diffusion
Source: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 389 (13): 2510-2521 JUL 1 2010
Language: English
Author Keywords: Single-file diffusion; Fractional generalized Langevin equation
KeyWords Plus: ANOMALOUS DIFFUSION; DYNAMICS; SYSTEMS; FLOW
Abstract: Fractional generalized Langevin equation with external force is used to model single-file diffusion. It is found that for
external force that varies with power law the solution for such a fractional Langevin equation gives the correct short and long time
behavior for the mean square displacement of single-file diffusion when appropriate choice of parameters associated with
fractional generalized Langevin equation are used. By considering some special cases of the fractional generalized Langevin
equation, a new class of closed analytic expressions for the mean square displacement of single-file diffusion can be obtained.
The effective Fokker-Planck equation associated with single-file diffusion is briefly considered. (C) 2010 Elsevier B.V. All
rights reserved.
Addresses: [Eab, C. H.] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Lim, SC, 10E Braddell Hill,22-19 Braddell View, Singapore 579724, Singapore.
Times Cited: 0
ISSN: 0378-4371
DOI: 10.1016/j.physa.2010.02.041
29-char Source Abbrev.: PHYSICA A
ISO Source Abbrev.: Physica A
Subject Category: Physics, Multidisciplinary
ISI Document Delivery No.: 598HB
Record 167 of 271
Author(s): Tongsomporn, J (Tongsomporn, Janyarak); Laohakosol, V (Laohakosol, Vichian); Hengkrawit, C (Hengkrawit,
Charinthip); Udomkavanich, P (Udomkavanich, Patanee)
Title: Stability of a generalized trigonometric functional equation
Source: JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 234 (5): 1448-1457 JUL 1 2010
Language: English
Author Keywords: Trigonometric functional equations; Stability; Superstability
Abstract: The stability of the functional equation F (x + y) - g(x - y) = 2H(x)K(y) over the domain of an abelian group G and the
range of the complex field is investigated. Several related results extending a number of previously known ones, such as the ones
dealing with the sine functional equation, the d'Alembert functional equation and Wilson functional equation, are derived as direct
consequences. Applying the main result to the setting of Banach algebra, it is shown that if their operators satisfy a functional
inequality and are subject to certain natural requirements, then these operators must be solutions of some well-known functional
equations. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Laohakosol, Vichian] Kasetsart Univ, Fac Sci, Dept Math, Bangkok 10900, Thailand; [Tongsomporn, Janyarak;
Udomkavanich, Patanee] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand; [Laohakosol, Vichian] CHE, Ctr
Excellence Math, Bangkok 10400, Thailand; [Hengkrawit, Charinthip] Thammasat Univ, Fac Sci & Technol, Dept Math & Stat,
Pathum Thani 12120, Thailand
Reprint Address: Laohakosol, V, Kasetsart Univ, Fac Sci, Dept Math, Bangkok 10900, Thailand.
E-mail Address: [email protected]; [email protected]; [email protected]; [email protected]
Funding Agency
Grant Number
56 of 84
RTA5180005
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Supported by the Commission on Higher Education and the Thailand Research Fund RTA5180005 and by the Centre of
Excellence in Mathematics, the Commission on Higher Education, Thailand.
Times Cited: 0
ISSN: 0377-0427
DOI: 10.1016/j.cam.2010.02.021
29-char Source Abbrev.: J COMPUT APPL MATH
ISO Source Abbrev.: J. Comput. Appl. Math.
Subject Category: Mathematics, Applied
ISI Document Delivery No.: 598EW
Record 168 of 271
Author(s): Proespraiwong, P (Proespraiwong, Porranee); Tassanakajon, A (Tassanakajon, Anchalee); Rimphanitchayakit, V
(Rimphanitchayakit, Vichien)
Title: Chitinases from the black tiger shrimp Penaeus monodon: Phylogenetics, expression and activities
Source: COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY, 156 (2):
86-96 JUN 2010
Language: English
Author Keywords: Penaeus monodon; Black tiger shrimp; Chitinase; Chitinase activity; Chitin; Phylogenetics
KeyWords Plus: MOLECULAR CHARACTERIZATION; DROSOPHILA-MELANOGASTER; CHITINOLYTIC ENZYMES;
MOLT CYCLE; JAPONICUS; HEPATOPANCREAS; PURIFICATION; CDNA; GENE; PROTEINS
Abstract: Chitinases are essential enzymes for crustaceans and animal alike for their molting and digestion of foods containing
chitin. From the Penaeus monodon EST database, cDNA contigs and singletons for three chitinases, namely PmChi1, 2 and 3,
were identified. The complete sequences for the mature PmChi1, 3 and partial PmChi2 were amplified and cloned. The reading
frames of PinChi1 and 3 encoded mature proteins of 644 and 468 amino acids with calculated molecular masses of 72.4 and 51.9
kDa, respectively. The amino acid sequence comparison among the penaeid chitinases revealed homology around 90%.
Therefore, they were grouped together along with those of other crustaceans and insects into three groups separated from those of
mammals. PmChi1, 2 and 3 were expressed mainly in hepatopancreas, gill and hepatopancreas, respectively, though small
amounts were expressed in other tissues. After molting, only the expression of PmChi2 was down-regulated, while the expression
of PmChi1 and 3 was relatively unchanged. The results suggested that the PmChi2 was likely involved in molting while the others
might function in the digestion of chitinous foods. The recombinant PmChi1 (rPmChi1) over-produced from Escherichia coli had
its optimal pH 5 but it was most stable at neutral pH. Interestingly, the optimal temperature was relatively high at 55 degrees C.
Nevertheless, it was stable at lower temperature below 40 C. The rPmChi1 preferentially hydrolyzed the more soluble substrates
like partially N-acetylated chitin (PNAC) and colloidal chitin from shrimp shell as compared to the beta-chitin from squid pen.
(C) 2010 Elsevier Inc. All rights reserved.
Addresses: [Proespraiwong, Porranee; Tassanakajon, Anchalee; Rimphanitchayakit, Vichien] Chulalongkorn Univ, Fac Sci, Dept
Biochem, Ctr Excellence Mol Biol & Genom Shrimp, Bangkok 10330, Thailand; [Proespraiwong, Porranee] Chulalongkorn Univ,
Fac Sci, Program Biotechnol, Bangkok 10330, Thailand
Reprint Address: Rimphanitchayakit, V, Chulalongkorn Univ, Fac Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom
Shrimp, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thai Government Stimulus Package 2, Center for Innovative Food, Health Products and Agriculture TKK2555
BIOTEC
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This work was supported by research grants from (i) the Thailand National Center for Genetic Engineering and Biotechnology
(BIOTEC), (ii) the Commission on Higher Education and (iii) the Thai Government Stimulus Package 2 (TKK2555) under the
Project for Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture. Financial support
from the BIOTEC to PP was greatly appreciated. The authors appreciate also the support given by Chulalongkorn University
through the Ratchadaphisek Somphot Endowment to the Center of Excellence for Molecular Biology and Genomics of Shrimp.
Times Cited: 0
ISSN: 1096-4959
DOI: 10.1016/j.cbpb.2010.02.007
29-char Source Abbrev.: COMP BIOCHEM PHYSIOL PT B
ISO Source Abbrev.: Comp. Biochem. Physiol. B-Biochem. Mol. Biol.
Subject Category: Biochemistry & Molecular Biology; Zoology
ISI Document Delivery No.: 598UA
Record 169 of 271
Author(s): Chuayjujit, S (Chuayjujit, S.); Sakulkijpiboon, S (Sakulkijpiboon, S.); Potiyaraj, P (Potiyaraj, P.)
Title: Preparation of Thermoplastic Elastomer from Epoxidised Natural Rubber and Polystyrene
Source: POLYMERS & POLYMER COMPOSITES, 18 (3): 139-144 2010
Language: English
KeyWords Plus: RUBBER/POLYSTYRENE BLENDS
Abstract: The aim of this research was to prepare and investigate the behaviour of thermoplastic elastomers (TPE) from
epoxidised natural rubbers (ENR) blended with polystyrene. ENRs with different amounts of epoxide groups were prepared via
in situ epoxidation method and denoted accordingly as ENR25, ENR35 and ENR50. Polystyrene (PS) was prepared by emulsion
polymerisation. The obtained ENRs were blended with commercial and prepared PS at room temperature in the latex state at the
amounts of dry PS of 0, 20, 40, 60, 80 and 100 phr (parts per hundred rubber). The mechanical and thermal properties of the blend
sheets were investigated. It was found that the tensile strength and elongation at break increased as the amount of PS increased,
then decreased later at higher amounts of PS. However, these values decreased as the amount of epoxide groups increased. The
hardness of the specimens increased with the increase of epoxide groups and PS content. For the determination of blend
compatibility, a shift in glass transition temperature to a lower temperature was revealed by DSC analysis. According to the
results, the ENR/PS blends could be described as partially miscible blends.
Addresses: [Chuayjujit, S.; Sakulkijpiboon, S.; Potiyaraj, P.] Chulalongkorn Univ, Dept Mat Sci, Fac Sci, Bangkok 10330,
Thailand; [Chuayjujit, S.; Potiyaraj, P.] Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330,
Thailand
Reprint Address: Potiyaraj, P, Chulalongkorn Univ, Dept Mat Sci, Fac Sci, Bangkok 10330, Thailand.
Times Cited: 0
Publisher: ISMITHERS
Publisher Address: SHAWBURY, SHREWSBURY, SHROPSHIRE, SY4 4NR, ENGLAND
ISSN: 0967-3911
29-char Source Abbrev.: POLYM POLYM COMPOSITES
ISO Source Abbrev.: Polym. Polym. Compos.
Subject Category: Materials Science, Characterization & Testing; Materials Science, Composites; Polymer Science
ISI Document Delivery No.: 596XU
Record 170 of 271
Author(s): Pimvichai, P (Pimvichai, Piyatida); Enghoff, H (Enghoff, Henrik); Panha, S (Panha, Somsak)
Title: The Rhynchoproctinae, a south-east Asiatic subfamily of giant millipedes: cladistic analysis, classification, four new
genera and a deviating new species from north-west Thailand (Diplopoda : Spirostreptida : Harpagophoridae)
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Source: INVERTEBRATE SYSTEMATICS, 24 (1): 51-80 2010
Language: English
KeyWords Plus: PHYLOGENETIC ANALYSIS
Abstract: The subfamily Rhynchoproctinae is revised at the generic level. Four new genera and a remarkable new species are
described: Alienostreptus, gen. nov. from Vietnam, Armatostreptus, gen. nov., Heptischius, gen. nov., and Heptischius lactuca, sp.
nov. from Thailand, and Prominulostreptus, gen. nov. from China. Agaricogonopus Zhang & Zhang, 1997, is removed from
synonymy with Junceustreptus Demange, 1961. All 14 genera of the subfamily share three diagnostic gonopodal characters: the
posterior surface of the anterior coxal fold forms a deep concavity, there is a mesal flap on the gonopod coxa, and the posterior
coxal fold is very low. A cladistic analysis based on morphological data supports monophyly of Rhynchoproctinae and the
distincness of the newly described genera. A dichotomous key to the genera is included.
Addresses: [Pimvichai, Piyatida; Panha, Somsak] Chulalongkorn Univ, Fac Sci, Dept Biol, Anim Systemat Res Unit, Bangkok
10330, Thailand; [Enghoff, Henrik] Univ Copenhagen, Nat Hist Museum Denmark, DK-2100 Copenhagen O, Denmark
Reprint Address: Pimvichai, P, Chulalongkorn Univ, Fac Sci, Dept Biol, Anim Systemat Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
PHD/0015/2549
CHE - National Research University of Thailand
2010-2012
BRT Program (TRF/BIOTECH-Thailand Biodiversity Research and Training Program)
This research was funded by The Thailand Research Fund, The Royal Golden Jubilee Ph.D. Program (PHD/0015/2549).
Additional funding was provided to Somsak Panha by the CHE - National Research University Project of Thailand (2010-2012)
and by the BRT Program (TRF/BIOTECH-Thailand Biodiversity Research and Training Program) under the BRT-MillipedeEarthworm Project. We thank members of Animal Systematics Research Unit, Chulalongkorn University for assistance in
collecting material, and Dr. Verena Stagl and her colleagues for making our visit to NMW such a success. We further extend our
thanks to the other curators who provided specimens for our study: Jean-Jacques Geoffroy (MNHN), Janet Beccaloni (NHML),
Jonathan Coddington (USNM), Jason A. Dunlop (ZMB), Hieronymus Dastych (ZMH), Sergei I. Golovatch (ZMMU), to Tamas
Szuts, Sergey Tarasov (ZMUC) and Piyoros Tongkerd (CUMZ) for help with cladistic analysis, to Yue Yanli (CNU) for
translations of Chinese papers, to Thita Krutchuen for excellent drawings, to Uengfa Bantaowong and Nattawadee Nantarat for
their helpfulness, and to The Willi Hennig Society for the TNT program.
Times Cited: 0
Publisher: CSIRO PUBLISHING
Publisher Address: 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA
ISSN: 1445-5226
DOI: 10.1071/IS09052
29-char Source Abbrev.: INVERTEBR SYST
ISO Source Abbrev.: Invertebr. Syst.
Subject Category: Evolutionary Biology; Zoology
ISI Document Delivery No.: 596WY
Record 171 of 271
Author(s): Chamroensaksri, N (Chamroensaksri, Nitcha); Tanasupawat, S (Tanasupawat, Somboon); Akaracharanya, A
(Akaracharanya, Ancharida); Visessanguan, W (Visessanguan, Wonnop); Kudo, T (Kudo, Takuji); Itoh, T (Itoh, Takashi)
Title: Gracilibacillus thailandensis sp nov., from fermented fish (pla-ra)
Source: INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 60: 944-948 Part 4 APR
2010
Language: English
KeyWords Plus: MODERATELY HALOPHILIC BACTERIUM; SALT-LAKE; GEN. NOV.; DEOXYRIBONUCLEIC ACID;
BACILLUS-DIPSOSAURI; CELL-WALL; CHINA; SYSTEMATICS; TOLERANT; STRAINS
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Abstract: A novel strain, designated TP2-8(T), was isolated from fermented fish (pla-ra) in Thailand. It stained Gram-positive
and the cells were aerobic, endospore-forming rods. The strain grew at pH 6-8 (optimum pH 7), 15-55 degrees C (optimum 37
degrees C) and 1-22% (w/v) NaCI (optimum 5-10%). It contained meso-diaminopimelic in the cell-wall peptidoglycan. MK-7
and cellular fatty acids anteiso-C-15:0, iso-C-15:0 and anteiso-C-17:0 were major components. Polar lipids
diphosphatidylglycerol and phosphatidylglycerol and unidentified lipids were detected. The DNA G+C content was 37.6 mol%.
Comparison of the 16S rRNA gene sequence of strain TP2-8(T) with those of other members of the family Bacillaceae indicated
that it was a member of the genus Gracilibacillus (94.9-99.2% sequence similarity) and was closely related to Grad//bacillus
saliphilus YIM 91119(T) (99.2% similarity), G. lacisalsi BH312(T) (98.6%), G. orientalis XH-63(T) (97.7 %), 'G.
quinghaiensis' YIM C229 (97.7%) and G. boraciitolerans T-16X(T) (97.2%). Strain TP2-8(T) showed low DNA-DNA
relatedness (<= 49%) to G. saliphilus YIM 91119(T), G. lacisalsi DSM 19029(T), G. orientalis CCM 7326(T), 'G. quinghaiensis'
DSM 17858 and G. boraciitolerans JCM 21714(T)" On the basis of the physiological and biochemical characteristics and
molecular data presented, strain TP2-8(T) is proposed to represent a novel species, Gracilibacillus thailandensis sp. nov. (type
strain TP2-8(T) =JCM 15569(T) =PCU 304(T) =TISTR 1881(T)).
Addresses: [Chamroensaksri, Nitcha; Tanasupawat, Somboon] Chulalongkorn Univ, Fac Pharmaceut Sci, Dept Microbiol,
Bangkok 10330, Thailand; [Akaracharanya, Ancharida] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok 10330, Thailand;
[Visessanguan, Wonnop] Natl Ctr Genet Engn & Biotechnol, Pathum Thani 12120, Thailand; [Kudo, Takuji; Itoh, Takashi] RIKEN
BioResource Ctr, Wako, Saitama 3210198, Japan
Reprint Address: Tanasupawat, S, Chulalongkorn Univ, Fac Pharmaceut Sci, Dept Microbiol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
We are very grateful to the Thailand Research Fund for a 2005 Royal Golden Jubilee Scholarship as a research grant to N.C.
and for a Faculty of Pharmaceutical Sciences research grant (2005). The authors thank Dr Wen-Jun Li (Yunnan Institute of
Microbiology, Kunming, PR China) for providing G. saliphilus YIM 91119T.
Times Cited: 1
ENGLAND
ISSN: 1466-5026
DOI: 10.1099/ijs.0.011981-0
29-char Source Abbrev.: INT J SYST EVOL MICROBIOL
ISO Source Abbrev.: Int. J. Syst. Evol. Microbiol.
ISI Document Delivery No.: 597CK
Record 172 of 271
Author(s): Keeratipibul, S (Keeratipibul, Suwimon); Meethong, S (Meethong, Suree); Techaruwichit, P (Techaruwichit,
Punnida); Thephuttee, N (Thephuttee, Nut)
Title: Prevalence of Escherichia coli and enterococci in a Thai frozen cooked chicken plant, and modeling of the cleaning and
sanitizing procedure
Source: FOOD CONTROL, 21 (8): 1104-1112 AUG 2010
Language: English
Author Keywords: Escherichia coli; Enterococci; Fecal streptococci; Modeling; Cleaning and sanitizing; Chicken meat
KeyWords Plus: CROSS-CONTAMINATION; MEAT-PRODUCTS; POULTRY
Abstract: Escherichia coil and contamination with enterococci in a cooked ready-to-eat chicken meat product and on processing
environmental surfaces were determined. Environmental surfaces were divided into three zones according to the distance of the
products. Contamination with enterococci was higher than with E. coli on the surfaces in all zones. E. coil was not detected in any
product, whereas 11.1% to 16.7% of samples were adulterated by enterococci. Contamination was mostly found in the niches of
surfaces that were difficult to clean and sanitize, which led to contamination of the surfaces of the product transfer conveyor.
Mathematical models, parameterized with scrubbing times with 1% (v/v) Quorum Pink II HF detergent, the concentration of acetic
acid and the contact times with 100 ppm chlorine were established to predict the probability for both groups of viable bacteria on
the conveyor surfaces following the cleaning and sanitizing process. Predicted values were almost equal to actual values, although
23/11/2553 18:37
slightly lower, when models were tested to validate the cleaning and sanitizing procedure. (C) 2010 Elsevier Ltd. All rights
reserved.
Addresses: [Keeratipibul, Suwimon; Meethong, Suree; Techaruwichit, Punnida] Chulalongkorn Univ, Fac Sci, Dept Food
Technol, Bangkok 10330, Thailand; [Thephuttee, Nut] Rangsit Univ, Fac Biotechnol, Dept Food Technol, Pathum Thani 12000,
Thailand
Reprint Address: Keeratipibul, S, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
cooked ready-to-eat chicken meat factory
The cooked ready-to-eat chicken meat factory is kindly thanked for financial support. The authors also gratefully acknowledge
Mr. Attakorn Jaitone, Productivity Improvement Division Manager of the chicken factory for supporting the on-site
investigation. and Associate Professor Dr. Paisan Nakmahachalasint, Department of Mathematics, Faculty of Science,
Chulalongkorn University for their valuable assistance with the statistical techniques and model estimations. Appreciation also
goes to Dr. Robert Butcher at the Publication Counseling Unit (PCU), Faculty of Science, Chulalongkorn University, for his
critical review and English language corrections of this manuscript.
Times Cited: 0
ISSN: 0956-7135
DOI: 10.1016/j.foodcont.2010.01.003
29-char Source Abbrev.: FOOD CONTROL
ISO Source Abbrev.: Food Control
ISI Document Delivery No.: 594MW
Record 173 of 271
Author(s): Petsriprasit, C (Petsriprasit, Chaloempan); Namboonmee, J (Namboonmee, Jirachaya); Hunsom, M (Hunsom, Mali)
Title: Application of the electrocoagulation technique for treating heavy metals containing wastewater from the pickling process
of a billet plant
Source: KOREAN JOURNAL OF CHEMICAL ENGINEERING, 27 (3): 854-861 MAY 2010
Language: English
Author Keywords: Electrocoagulation; Metal Removal; Current Efficiency; Pickling Process
KeyWords Plus: ELECTROCHEMICAL TREATMENT; HYDROCHLORIC-ACID; AQUEOUS-SOLUTION; REMOVAL;
CHROMIUM; RECOVERY; EXTRACTION; ELECTRODE; EFFLUENT; INDUSTRY
Abstract: This work was carried out to study the removal of various heavy metals, including Cu, Cr, Pb and Zn, from billet
industry wastewater by the electrocoagulation process in both batch and continuous experiments at a laboratory scale and ambient
temperature (30 A degrees C). In the batch experiment, the effect of various parameters including the current density, initial
wastewater pH and electrolysis time, on the metal removal efficiency was examined. Optimal metal ion depletion was attained
with a current density of 98 A/m(2), an initial wastewater pH of 5 and a 30 min electrolysis time. Under these conditions, greater
than 99% of Cu, Cr and Zn was removed, whilst the outlet wastewater contained Cu, Cr, Pb and Zn at less than 0.02, 0.01, 0.07
and 0.05 mg/l, respectively. For the continuous process, the results indicated that the treatment system reached its steady state
condition within 120 min, and the optimum condition for the continuous treatment was found at an initial wastewater pH of 3 and
flow rate of 55 ml/min. At this condition, a complete removal of Cu and Pb and greater than 99% removal of Cr and Zn were
achieved.
Addresses: [Petsriprasit, Chaloempan; Hunsom, Mali] Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330,
Thailand; [Namboonmee, Jirachaya; Hunsom, Mali] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330,
Thailand
Reprint Address: Hunsom, M, Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Thailand Research Fund I24912016
The authors would like to acknowledge the financial support from the Thailand Research Fund under the Industrial Projects for
Under Graduate Students (IRPUS) (Grant No. I24912016), the Center for Petroleum, Petrochemicals and Advanced Materials
for facility support, and The Asahi-Thai Alloy Co., Ltd. for samples and materials. Also, we thank the Publication Counseling
Unit (PCU) of Faculty of Science, Chulalongkorn University and Dr. Robert D. J. Butcher for comments, suggestions and
checking the grammar.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0256-1115
DOI: 10.1007/s11814-010-0145-3
ISI Document Delivery No.: 592XN
Record 174 of 271
Author(s): Kongjao, S (Kongjao, Sangkorn); Damronglerd, S (Damronglerd, Somsak); Hunsom, M (Hunsom, Mali)
Title: Purification of crude glycerol derived from waste used-oil methyl ester plant
Source: KOREAN JOURNAL OF CHEMICAL ENGINEERING, 27 (3): 944-949 MAY 2010
Language: English
Author Keywords: Crude Glycerol; Purification; Biodiesel; Glycerol-rich Layer; Waste
KeyWords Plus: BIODIESEL PRODUCTION; OPTIMIZATION; ACID
Abstract: The purification of crude glycerol from a biodiesel plant using waste used-oil as a raw material was carried out on a
laboratory scale by using the combined chemical and physical treatments based upon repeated cycles of acidification to the
desired pH within the range of 1-6 using 1.19 M H2SO4, allowing phase separation and harvesting of the glycerol-rich middle
phase followed by neutralization of the harvested glycerol phase with 12.5M NaOH. Subsequently, the glycerol-enriched fraction
was extracted by ethanol. The results indicated that increasing the pH of the acidification step led to an increased yield of the
glycerol-rich layer and decreased amount of inorganic salt and free fatty acids phase. Under strong acid conditions, large
quantities of fatty acid and salt in the glycerol-enriched fraction were eliminated and, at pH 1, high purity glycerol (similar to
93.34%) with relatively low contaminant levels (0.00045% (w/w) ash and 5.16% (w/w) MONG) was obtained.
Addresses: [Kongjao, Sangkorn; Damronglerd, Somsak; Hunsom, Mali] Chulalongkorn Univ, Dept Chem Technol, Fac Sci,
Bangkok 10330, Thailand; [Damronglerd, Somsak; Hunsom, Mali] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok
10330, Thailand
Reprint Address: Hunsom, M, Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Bangchak Petroleum Co., Ltd.
The authors would like to acknowledge the financial and facility support from the Center for Petroleum, Petrochemicals and
Advanced Materials, and the Bangchak Petroleum Co., Ltd., for samples and materials. Also, we thank the Publication
Counseling Unit (PCU) of Faculty of Science, Chulalongkorn University, and Dr. Robert D.J. Butcher for comments, suggestions
and checking the grammar.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0256-1115
23/11/2553 18:37
DOI: 10.1007/s11814-010-0148-0
ISI Document Delivery No.: 592XN
Record 175 of 271
Author(s): Wichapong, K (Wichapong, Kanin); Pianwanit, S (Pianwanit, Somsak); Sippl, W (Sippl, Wolfgang); Kokpol, S
(Kokpol, Sirirat)
Title: Homology modeling and molecular dynamics simulations of Dengue virus NS2B/NS3 protease: insight into molecular
interaction
Source: JOURNAL OF MOLECULAR RECOGNITION, 23 (3): 283-300 MAY-JUN 2010
Language: English
Author Keywords: Dengue NS2B/NS3 protease; West Nile NS2B/NS3 protease; molecular dynamics simulation; GRID;
GROMACS
KeyWords Plus: WEST-NILE-VIRUS; TETRAPEPTIDE ALDEHYDE INHIBITORS; YELLOW-FEVER VIRUS; NS3
PROTEASE; IN-VITRO; SERINE-PROTEASE; PEPTIDE INHIBITORS; HEMORRHAGIC-FEVER; NS2B-NS3 PROTEASE;
CRYSTAL-STRUCTURE
Abstract: The pathogenic West Nile virus (WNV) and Dengue virus (DV) are growing global threats for which there are no
specific treatments. Both viruses possess a two component NS2B/NS3 protease which cleaves viral precursor proteins. Whereas
for the WNV protease two crystal structures in complex with an inhibitor have been solved recently, no such information is
available for the DV protease. Here, we report the generation of a homology model of DV NS2B/NS3 protease. Since it is known
from the related WNV protease that it adopts a distinct conformation in free and in inhibitor-complexed form, a special emphasis
was given to the analysis of the protease flexibility. Therefore, several models of DV NS2B/NS3 protease complexed with the
peptidic inhibitor (Bz-Nle(P4)-Lys(P3)-Arg(P2)-Arg(P1)-H) were generated. The first DV protease model (DV-1) was
constructed using the available crystal structure of the apo DV NS2B/NS3 protease. The second model (DV-2) was built taking
the WNV NS3/NS2B protease in the inhibitor-complexed form as the template structure. Molecular dynamics simulations which
were carried out for the WNV crystal structures as well as for the DV models provided an understanding of the role of NS2B for
maintaining the protease in the active conformation. It was also demonstrated that NS2B is not only important for maintaining NS3
in the active form, but is also essential for establishing the interaction between residues from the 52 pocket and the peptidic
inhibitor. The DV NS2B/NS3 model in the productive conformation can now be used for structure-based design purposes.
Copyright (C) 2009 John Wiley & Sons, Ltd.
Addresses: [Wichapong, Kanin; Sippl, Wolfgang] Univ Halle Wittenberg, Dept Pharmaceut Chem, D-06120 Halle, Saale,
Germany; [Wichapong, Kanin; Pianwanit, Somsak; Kokpol, Sirirat] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330,
Thailand
Reprint Address: Sippl, W, Univ Halle Wittenberg, Dept Pharmaceut Chem, D-06120 Halle, Saale, Germany.
Funding Agency
Grant Number
PHD/0044/2548
Deustscher Akademischer Austausch Dienst (DAAD)
Authors would like to give acknowledgements to the Thailand Research Fund through the Royal Golden Jubilee Ph.D Program
(Grant number PHD/0044/2548) and Center for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University
for Financial support, the Department of Pharmaceutical Chemistry, Martin-Luther University Halle-Wittenberg and
Computation Chemistry Unit Cell (CCUC), Department of Chemistry, Faculty of Science, Chulalongkorn University for all
computational supports. K.W. would like to give additionally acknowledgements to Deustscher Akademischer Austausch Dienst
(DAAD) for financial support.
Times Cited: 0
ISSN: 0952-3499
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DOI: 10.1002/jmr.977
29-char Source Abbrev.: J MOL RECOGNIT
ISO Source Abbrev.: J. Mol. Recognit.
Subject Category: Biochemistry & Molecular Biology; Biophysics
ISI Document Delivery No.: 591YX
Record 176 of 271
Author(s): Burikham, P (Burikham, Piyabut)
Title: Magnetic properties of holographic multiquarks in the quark-gluon plasma
Source: JOURNAL OF HIGH ENERGY PHYSICS, (4): Art. No. 045 APR 2010
Language: English
Author Keywords: Brane Dynamics in Gauge Theories; D-branes
KeyWords Plus: QCD
Abstract: We study the magnetic properties of the coloured multiquark states in the quark-gluon plasma where the gluons are
deconfined and the chiral symmetry is still broken, using the Sakai-Sugimoto model. There are two possible magnetized
multiquark configurations. Both configurations converge to the same configuration at the critical field and temperature before they
dissociate altogether either into less coloured multiquarks or into other phases for a fixed density. It is also found that the
multiquarks with higher colour charges respond more to the external magnetic field in both the magnetization and the degree of
chiral symmetry breaking. Magnetic field also makes it more difficult for multiquark states with large colour charges to satisfy the
equilibrium condition of the configuration in the gravity dual picture. As long as the chemical potential mu > mu(onset), the
magnetized multiquark phase is thermodynamically preferred over the magnetized vacuum. Pure pion gradient and the chiralsymmetric quark-gluon plasma (chi(S)-QGP) phase for the general Sakai-Sugimoto model are discussed and compared with the
multiquark phase in the presence of the magnetic field. It is found that at large densities and moderate fields, the mixed phase of
multiquarks and the pion gradient is thermodynamically preferred over the chi(S)-QGP.
Addresses: Chulalongkorn Univ, Dept Phys, Fac Sci, Theoret High Energy Phys & Cosmol Grp, Bangkok 10330, Thailand
Reprint Address: Burikham, P, Chulalongkorn Univ, Dept Phys, Fac Sci, Theoret High Energy Phys & Cosmol Grp, Bangkok
10330, Thailand.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1126-6708
Article Number: 045
DOI: 10.1007/JHEP04(2010)045
29-char Source Abbrev.: J HIGH ENERGY PHYS
ISO Source Abbrev.: J. High Energy Phys.
Subject Category: Physics, Particles & Fields
ISI Document Delivery No.: 593PZ
Record 177 of 271
Author(s): Akkarachaneeyakorn, S (Akkarachaneeyakorn, S.); Laguerre, JC (Laguerre, J. C.); Tattiyakul, J (Tattiyakul, J.);
Neugnot, B (Neugnot, B.); Boivin, P (Boivin, P.); Morales, FJ (Morales, F. J.); Birlouez-Aragon, I (Birlouez-Aragon, I.)
Title: Optimization of Combined Microwave-Hot Air Roasting of Malt Based on Energy Consumption and Neo-Formed
Contaminants Content
Source: JOURNAL OF FOOD SCIENCE, 75 (4): E201-E207 MAY 2010
Language: English
Author Keywords: combined microwave-hot air; malt roasting; neo-formed contaminant; optimization; response surface
methodology
KeyWords Plus: ACRYLAMIDE; FOODS
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Abstract: To produce specialty malt, malts were roasted by combined microwave-hot air at various specific microwave powers
(SP = 2.5 to 3 W/g), microwave heating times (t(mw) = 3.3 to 3.5 min), oven temperatures (T-oven = 180 to 220 degrees C), and
oven heating times (t(oven) = 60 to 150 min). The response variables, color, energy consumption by microwave (E-mw) and oven
(E-oven), total energy consumption (E-tot), quantity of neo-formed contaminants (NFCs), which include hydroxymethylfurfural,
furfural, furan, and acrylamide were determined. Response surface methodology (RSM) was performed to analyze and predict the
optimum conditions for the specialty malt. Production using combined microwave-hot air roasting process based on minimum
energy consumption and level of NFCs. At 95% confident level, SP, T-oven, and t(oven) were the most influencing effects with
regard to E-tot, whereas t(mw) did not affect E-tot. T-oven and toven significantly affected malt color. Only T-oven significantly
influenced the NFCs content. The optimum parameters were: SP = 2.68 W/g for 3.44 min, T-oven = 206 degrees C for 136 min for
coffee malt, SP = 2.5W/g for 3.48 min, T-oven = 214 degrees C for 136 min for chocolate malt, and SP = 2.5W/g for 3.48 min,
T-oven = 211 degrees C for 150 min for black malt. Comparing with conventional process, combined microwave-hot air reduced
E-tot by approximately 40%, 26%, and 26% for coffee, chocolate, and black malts, respectively, and reduced HMF, furfural,
furan, and acrylamide contents by 40%, 18%, 23%, and 95%, respectively, for black malt.
Practical Application: An important goal for research institutions and the brewery industry is to produce colored malt by
combining microwave and hot air roasting, while saving energy, getting desirable color, and avoiding the formation of
carcinogenic and toxic neo-formed contaminants (NFCs). Therefore, one objective of this study was to compare energy
consumption and content of NFCs during roasting of malt by hot air-only and combined microwave-hot air processes as well as to
determine the effect of specific power, microwave processing time, oven temperature, and oven processing time during combined
microwave-hot air roasting. Another objective was to predict the optimum conditions for the production of coffee, chocolate, and
black malts.
Addresses: [Laguerre, J. C.] Inst Polytech LaSalle Beauvais, Dept Food Engn, F-60026 Beauvais, France; [Akkarachaneeyakorn,
S.] King Mongkuts Univ Technol N Bangkok, Fac Sci Appl, Dept Ago Ind Technol, Bangkok 10800, Thailand; [Laguerre, J. C.]
AgroParis Tech, UMR Genie Ind Alimentaire 1145, F-91300 Massy, France; [Tattiyakul, J.] Chulalongkorn Univ, Fac Sci, Dept
Food Technol, Bangkok 10330, Thailand; [Neugnot, B.; Boivin, P.] French Inst Brewing & Malting, F-54512 Nancy, France;
[Morales, F. J.] CSIC, Madrid 2800, Spain; [Birlouez-Aragon, I.] AgroParisTech, F-93230 Romainville, France; [BirlouezAragon, I.] SPECTRALYS Innovat, F-93230 Romainville, France
Reprint Address: Laguerre, JC, Inst Polytech LaSalle Beauvais, Dept Food Engn, Rue Pierre Waguet,BP 30313, F-60026
Beauvais, France.
Funding Agency
Grant Number
Natl. Science and Technology Development Agency
Ministry of Science and Technology, Thailand
ICARE project, A European Collective Research Project 516415
The authors wish to acknowledge financial support from Natl. Science and Technology Development Agency, Ministry of
Science and Technology, Thailand, and ICARE project, A European Collective Research Project (516415).
Times Cited: 0
ISSN: 0022-1147
DOI: 10.1111/j.1750-3841.2010.01567.x
29-char Source Abbrev.: J FOOD SCI
ISO Source Abbrev.: J. Food Sci.
ISI Document Delivery No.: 591KX
Record 178 of 271
Author(s): Kritayakornupong, C (Kritayakornupong, Chinapong); Vchirawongkwin, V (Vchirawongkwin, Viwat); Rode, BM
(Rode, Bernd M.)
Title: An Ab Initio Quantum Mechanical Charge Field Molecular Dynamics Simulation of a Dilute Aqueous HCl Solution
Source: JOURNAL OF COMPUTATIONAL CHEMISTRY, 31 (8): 1785-1792 JUN 2010
Language: English
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Author Keywords: hydrogen chloride; hydration structure; dynamical properties; hydrogen bond; acid dissociation; proton
transfer; simulation; QMCF
KeyWords Plus: QMCF MD SIMULATION; QM/MM-MD; HYDROCHLORIC-ACID; PROTON-TRANSFER; WATER
CLUSTERS; HYDROGEN; COMPLEXES; IONS; IONIZATION; SOLVATION
Abstract: An ab initio quantum mechanical charge field (QMCF) molecular dynamics simulation has been performed to study the
structural and dynamical properties of a dilute aqueous HCl solution. The solute molecule HCl and its surrounding water
molecules were treated at Hartree-Fock level in conjunction with Dunning double-zeta plus polarization function basis sets. The
simulation predicts an average H-Cl bond distance of 1.28 angstrom. which is in good agreement with the experimental value. The
H-HCl center dot center dot center dot O-w. and Cl-HCl center dot center dot center dot H-w, distances of 1.84 and 3.51
angstrom were found for the first hydration shell. At the hydrogen site of HCl, a single water molecule is the most preferred
coordination, whereas an average coordination number of 12 water molecules of the full first shell was observed for the chloride
site. The hydrogen bonding at the hydrogen site of HCl is weakened by proton transfer reactions and an associated lability of
ligand binding. Two proton transfer processes were observed in the QMCF MD simulation, demonstrating acid dissociation of
HCl. A weak structure-making/breaking effect of HCl in water is recognized from the mean residence times of 2.1 and 0.8 ps for
ligands in the neighborhood of Cl and H sites of HCl, respectively. (C) 2009 Wiley Periodicals. Inc. J Comput Chem 31:
1785-1792, 2010
Addresses: [Kritayakornupong, Chinapong] King Mongkuts Univ Technol, Fac Sci, Dept Chem, Bangkok 10140, Thailand;
[Vchirawongkwin, Viwat] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Rode, Bernd M.] Innsbruck
Univ, Theoret Chem Div, Inst Gen Inorgan & Theoret Chem, A-6020 Innsbruck, Austria
Reprint Address: Kritayakornupong, C, King Mongkuts Univ Technol, Fac Sci, Dept Chem, Bangkok 10140, Thailand.
Funding Agency
Grant Number
Thailand Commission on Higher Education
Austrian Science Foundation (FWF)
Contract/grant sponsors: Thailand Research Fund (TRF), Thailand Commission on Higher Education, Austrian Science
Foundation (FWF)
Times Cited: 1
ISSN: 0192-8651
DOI: 10.1002/jcc.21469
29-char Source Abbrev.: J COMPUT CHEM
ISO Source Abbrev.: J. Comput. Chem.
ISI Document Delivery No.: 593TL
Record 179 of 271
Author(s): Siripong, A (Siripong, Absornsuda)
Title: EDUCATION FOR DISASTER RISK REDUCTION IN THAILAND
Source: JOURNAL OF EARTHQUAKE AND TSUNAMI, 4 (2): 61-72 JUN 2010
Language: English
Author Keywords: Disaster risk reduction; disaster education; disaster mitigation in Thailand; DDPM; MOE; NDWC
Abstract: Education has been identified by UNESCO as well as the UN/International Strategy for Disaster Reduction (UN/ISDR)
under the Hyogo Framework for Action as Key to mitigate the impact of natural disasters. Moreover, education-lifelong education
for everyone-is the excellent investment for individuals and society as a whole. It is the least expensive and most efficient way for
disaster mitigation, even without sophisticated and expensive technologies for early warning, the people can escape from and
mitigate the impact of the natural disasters safely if they know the characteristics of the disasters scientifically. Learning early is
better than preparedness, because preparedness needs time and efforts. Aristotle once said "What we have to learn to do, we learn
by doing." Education is a part of awareness and preparedness. A warning will be useless, if people do not know what to do in
case of an emergency. The educational processes and institutions for tsunami mitigation with some problems in Thailand were
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described.
Addresses: Chulalongkorn Univ, Fac Sci, Dept Marine Sci, Bangkok 10330, Thailand
Reprint Address: Siripong, A, Chulalongkorn Univ, Fac Sci, Dept Marine Sci, Phya Thai Rd, Bangkok 10330, Thailand.
Times Cited: 0
Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD
Publisher Address: 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
ISSN: 1793-4311
DOI: 10.1142/S1793431110000716
29-char Source Abbrev.: J EARTHQ TSUNAMI
ISO Source Abbrev.: J. Earthq. Tsunami
Subject Category: Geochemistry & Geophysics
ISI Document Delivery No.: 592GM
Record 180 of 271
Author(s): Sanorpim, S (Sanorpim, Sakuntam); Katayama, R (Katayama, Ryuji); Onabe, K (Onabe, Kentaro); Usami, N (Usami,
Noritaka); Nakajima, K (Nakajima, Kazuo)
Title: Lattice-Latching Effect in Metalorganic Vapor Phase Epitaxy Growth of InGaAsN Film Lattice-Matched to Bulk InGaAs
Substrate
Source: JAPANESE JOURNAL OF APPLIED PHYSICS, 49 (4): Art. No. 040202 Part 1 2010
Language: English
KeyWords Plus: BAND PARAMETERS; GAAS; SEMICONDUCTORS; GAINNAS/GAAS; CRYSTAL; ALLOYS; MOVPE
Abstract: The effects of lattice mismatch between an InzGa1-zAs bulk substrate and an InxGa1-xAs1-yNy epilayer on the
incorporation kinetics of N (y) and In (x) were investigated. Compositions (x, y) were revealed to be pinned by the substrate to
those satisfying lattice-matching conditions. With decreasing In (z) content in the substrate, the incorporation of N is spontaneously
enhanced. On the other hand, the In content of the layer is reduced to decrese the deformation energy due to the lattice mismatch.
On the basis of our results, thick InxGa1-xAs1-yNy (0.289 < x < 0.312 and 0.009 < y < 0.014) layers exhibiting
photoluminescence in the wavelength range of 1.3-1.55 mu m were observed to grow owing to the "lattice-latching'' effect. (C)
2010 The Japan Society of Applied Physics
Addresses: [Sanorpim, Sakuntam] Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand; [Sanorpim, Sakuntam]
Chulalongkorn Univ, Ctr Innovat Nanotechnol, Bangkok 10330, Thailand; [Katayama, Ryuji; Onabe, Kentaro] Univ Tokyo, Dept
Adv Mat Sci, Chiba 2778561, Japan; [Katayama, Ryuji; Usami, Noritaka; Nakajima, Kazuo] Tohoku Univ, IMR, Sendai, Miyagi
9808577, Japan
Reprint Address: Sanorpim, S, Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Ministry of Education, Culture, Sports, Science and Technology
NEDO of Japan
MRG5080141
The authors thank Drs. Y. Azuma and Y. Nose for fruitful discussions. This work was partially supported by a Grant-in-Aid for
Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, and the Industrial Technology
Research Grant Program from NEDO of Japan. S. Sanorpim was supported by the Commission on Higher Education and the
Thailand Research Fund (TRF; contact No. MRG5080141).
Times Cited: 0
Publisher: JAPAN SOC APPLIED PHYSICS
Publisher Address: KUDAN-KITA BUILDING 5TH FLOOR, 1-12-3 KUDAN-KITA, CHIYODA-KU, TOKYO, 102-0073,
JAPAN
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ISSN: 0021-4922
DOI: 10.1143/JJAP.49.040202
29-char Source Abbrev.: JPN J APPL PHYS
ISO Source Abbrev.: Jpn. J. Appl. Phys.
Subject Category: Physics, Applied
ISI Document Delivery No.: 591KY
Record 181 of 271
Author(s): Monyanon, S (Monyanon, Sutarawadee); Luengnaruemitchai, A (Luengnaruemitchai, Apanee); Pongstabodee, S
(Pongstabodee, Sangobtip)
Title: Preferential oxidation of carbon monoxide in simulated reformatted gas over PtAu/CexZnyO2 catalysts
Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 35 (8): 3234-3242 APR 2010
Language: English
Author Keywords: Selective CO oxidation; Pt-Au catalysts; Mixed-oxide supports
KeyWords Plus: SELECTIVE CO OXIDATION; CERIA-SUPPORTED CATALYSTS; UV-SHIELDING PROPERTIES;
FUEL-CELL; HYDROGEN PROX; ZINC-OXIDE; H-2-RICH STREAM; SOLID-SOLUTION; TEMPERATURE; ZIRCONIA
Abstract: A series of Pt-Au catalysts prepared by co-precipitation (CP) and single step so-gel (SSG) methods was investigated
for selective CO oxidation. The characteristics of the prepared catalysts were determined by XRD, BET surface area, SEM,
H-2-TPR, chemisorption analysis, and FTIR. The simulated reformatted gas consisted of 1% CO, 1% O-2, 0% to 10% H2O,
0-20% CO2, and 40% H-2 in He balance. The operating temperature range was varied from 50 degrees C to 190 degrees C at
atmospheric pressure. The experimental results elucidated that the catalytic preparation method had a significant effect on the
catalyst characteristics and its activity. The catalytic performance over PtAu/Ce1Zn1O2 prepared by co-precipitation was higher
than that of PtAu/CeO2 and PtAu/ZnO because of the incorporation of Ce4+ ions and the Zn2+ ions in the lattice. To encourage
better catalytic performance, the catalysts should be calcined at 500 degrees C for 5 h and pretreated in a H-2 atmosphere. The
CO conversion for the single- and double-stage reaction was reduced when adding water vapor and CO2 to the feedstream; the
water vapor and CO2 molecules compete for the adsorption with CO on the active sites of the catalysts. During the deactivation
test for 60 h, the CO conversion and selectivity are maintained. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd.
Addresses: [Monyanon, Sutarawadee; Pongstabodee, Sangobtip] Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok
10330, Thailand; [Luengnaruemitchai, Apanee] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand;
[Luengnaruemitchai, Apanee; Pongstabodee, Sangobtip] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330,
Thailand
Reprint Address: Pongstabodee, S, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
This work was partially supported by the Center for Petroleum, Petrochemicals and Advanced Materials and The 90th
Anniversary of Chulalongkorn University Fund (Ratch-adaphiseksomphot Endowment Fund). The authors would like to thank the
Department of Chemical Technology and The Petroleum and Petrochemical College, Chulalongkorn University, Thailand.
Times Cited: 0
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2010.01.070
29-char Source Abbrev.: INT J HYDROGEN ENERG
ISO Source Abbrev.: Int. J. Hydrog. Energy
Subject Category: Chemistry, Physical; Energy & Fuels; Environmental Sciences; Physics, Atomic, Molecular & Chemical
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ISI Document Delivery No.: 593NS
Record 182 of 271
Author(s): Choowong, M (Choowong, M.)
Title: Forewarning of M 7.6 earthquake at Andaman Islands: where next?
Source: CURRENT SCIENCE, 98 (8): 1013-1014 APR 25 2010
Language: English
KeyWords Plus: THAILAND; TSUNAMI
Addresses: Chulalongkorn Univ, Fac Sci, Dept Geol, Bangkok 10330, Thailand
Reprint Address: Choowong, M, Chulalongkorn Univ, Fac Sci, Dept Geol, Bangkok 10330, Thailand.
Times Cited: 0
Publisher: INDIAN ACAD SCIENCES
Publisher Address: C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
ISSN: 0011-3891
29-char Source Abbrev.: CURR SCI
ISO Source Abbrev.: Curr. Sci.
ISI Document Delivery No.: 592OL
Record 183 of 271
Author(s): Boonsnongcheep, P (Boonsnongcheep, Panitch); Korsangruang, S (Korsangruang, Sirintra); Soonthornchareonnon, N
(Soonthornchareonnon, Noppamas); Chintapakorn, Y (Chintapakorn, Yupyn); Saralamp, P (Saralamp, Promchit); Prathanturarug, S
(Prathanturarug, Sompop)
Title: Growth and isoflavonoid accumulation of Pueraria candollei var. candollei and P. candollei var. mirifica cell suspension
cultures
Source: PLANT CELL TISSUE AND ORGAN CULTURE, 101 (2): 119-126 MAY 2010
Language: English
Author Keywords: Analytical method validation; Cell suspension culture; HPLC; Isoflavonoids; Pueraria candollei
KeyWords Plus: MENOPAUSAL CYNOMOLGUS MONKEYS; PHYTOESTROGEN-RICH-HERB; ESTROGENIC
ACTIVITY; TISSUE-CULTURES; LOBATA; BIOSYNTHESIS; HORMONE
Abstract: We established cell suspension cultures derived from leaf, stem, and root calli of Pueraria candollei var. candollei and
P. candollei var. mirifica using liquid Murashige and Skoog (MS) medium supplemented with 0.56 mu M 6-benzyladenine (BA)
and 4.52 mu M 2,4-dichlorophenoxyacetic acid (2,4-D). Growth of the cell suspension cultures progressed to the stationary phase
within 15-24 days. Methanolic extracts of cell suspension cultures of both varieties of P. candollei were analyzed using a
validated HPLC protocol. All cell lines derived from leaf, stem, and root explants produced four major isoflavonoids: daidzein,
daidzin, genistein, and genistin; these isoflavonoids were detected only in the roots of intact plants. Furthermore, the isoflavonoid
contents of the cell suspension cultures were higher than those of intact plants. Thus, cell suspension culture of both varieties of P.
candollei may be an effective tool for isoflavonoid production.
Addresses: [Boonsnongcheep, Panitch; Korsangruang, Sirintra; Saralamp, Promchit; Prathanturarug, Sompop] Mahidol Univ, Fac
Pharm, Dept Pharmaceut Bot, Bangkok 10400, Thailand; [Soonthornchareonnon, Noppamas] Mahidol Univ, Fac Pharm, Dept
Pharmacognosy, Bangkok 10400, Thailand; [Chintapakorn, Yupyn] Chulalongkorn Univ, Fac Sci, Dept Bot, Bangkok 10330,
Thailand
Reprint Address: Prathanturarug, S, Mahidol Univ, Fac Pharm, Dept Pharmaceut Bot, 447 Sri Ayuthaya Rd, Bangkok 10400,
Thailand.
Funding Agency
Grant Number
DBG4980009
Royal Golden Jubilee Program PHD/0143/2548
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This work was supported by the Thailand Research Fund (DBG4980009). SK is grateful for financial support from the Royal
Golden Jubilee Program (PHD/0143/2548).
Times Cited: 0
Publisher: SPRINGER
Publisher Address: VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN: 0167-6857
DOI: 10.1007/s11240-010-9668-x
29-char Source Abbrev.: PLANT CELL TISSUE ORGAN CULT
ISO Source Abbrev.: Plant Cell Tissue Organ Cult.
Subject Category: Biotechnology & Applied Microbiology; Plant Sciences
ISI Document Delivery No.: 590DP
Record 184 of 271
Author(s): Ruangpornvisuti, V (Ruangpornvisuti, Vithaya)
Title: Molecular modeling of dissociative and non-dissociative chemisorption of nitrosamine on close-ended and open-ended
pristine and Stone-Wales defective (5,5) armchair single-walled carbon nanotubes
Source: JOURNAL OF MOLECULAR MODELING, 16 (6): 1127-1138 JUN 2010
Language: English
Author Keywords: Carbon nanotubes; Single-walled carbon nanotube; Chemisorption; Nitrosamine; Pristine; Stone-Wales
defective; Density functional theory
KeyWords Plus: VOLATILE N-NITROSAMINES; DENSITY-FUNCTIONAL THEORY; HYDROGEN-ATOMS; GAS-PHASE;
NITROSODIMETHYLAMINE; FISH; SIDEWALLS; ISOMERS; OILS; NITROSATION
Abstract: The nitrosamine adsorbed on close-ended and open-ended pristine and Stone- Wales defective (5,5) armchair singlewalled carbon nanotubes (SWCNTs) was studied using the B3LYP/6-31G(d) method. Structure optimization of all possible
adsorption configurations based on the combination of two nitrosamine (amino- and imino-) isomers and four types of nanotubes
was carried out. The most stable configuration for the nitrosamine adsorbed on the (5,5) armchair SWCNTs was found to be
dissociative chemisorption. The adsorption energies of the most stable structures of the adsorption complexes of close-ended and
open-ended pristine SWCNTs with the imino isomer of nitrosamine were -127.15 and -137.14 kcal mol(-1), respectively.
Addresses: Chulalongkorn Univ, Supramol Chem Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Ruangpornvisuti, V, Chulalongkorn Univ, Supramol Chem Res Unit, Dept Chem, Fac Sci, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
NN-B-22-m10-10-49-18
This research was supported financially by the National Nanotechnology Center (NANOTEC), grant number NN-B-22m10-10-49-18, National Science and Technology Development Agency, Thailand. This work was partially supported by the
Thailand Research Fund (TRF) and the National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1610-2940
DOI: 10.1007/s00894-009-0622-y
29-char Source Abbrev.: J MOL MODEL
ISO Source Abbrev.: J. Mol. Model.
23/11/2553 18:37
Subject Category: Biochemistry & Molecular Biology; Biophysics; Chemistry, Multidisciplinary; Computer Science,
Interdisciplinary Applications
ISI Document Delivery No.: 590CX
Record 185 of 271
Author(s): Meunpol, O (Meunpol, O.); Duangjai, E (Duangjai, E.); Yoonpun, R (Yoonpun, R.); Piyatiratitivorakul, S
(Piyatiratitivorakul, S.)
Title: Detection of prostaglandin E-2 in polychaete Perinereis sp and its effect on Penaeus monodon oocyte development in vitro
Source: FISHERIES SCIENCE, 76 (2): 281-286 MAR 2010
Language: English
Author Keywords: Polychaete; Prostaglandin E-2; Shrimp oocyte; In vitro incubation
KeyWords Plus: FATTY-ACID CONTENT; KURUMA PRAWN; ENVIRONMENTAL-CONTROL; OVARIAN MATURATION;
SHRIMP; REPRODUCTION; JAPONICUS; ANNELIDS; VANNAMEI; FABRICIUS
Abstract: Prostaglandins are involved in the reproductive processes in a variety of animals, including crustaceans. It was found
that polychaetes, the best maturation diet for shrimp broodstock, possessed the greatest variation of prostaglandin E-2 (PGE(2))
when compared with other live feeds. The level of PGE(2) varied according to sizes, feed intake, sources and type of polychaete.
The matured and also larger sand polychaete Perinereis sp. contained higher PGE2 levels than younger and smaller sand
polychaetes (18.16 +/- 5.82 ng PGE(2) mg(-1) protein for polychaetes at an average length of 10 cm up to 160.8 +/- 37.09 ng
PGE(2) mg(-1) protein for polychaetes at an average length of 17 cm). The PGE(2) levels in ovaries and haemolymph of female
shrimp fluctuated with the developmental stage of the ovaries. The highest concentration of PGE(2) in haemolymph was at stage 3
of ovarian development, whereas the highest concentration of PGE(2) in shrimp ovaries was at stage 4. In vitro incubation of
Penaeus monodon pre-vitellogenic oocytes with polychaete extract and synthetic PGE(2) demonstrated that both PGE(2)s
enhanced oocyte development, especially during late development and ovulation. The putative role of PGE(2) from polychaetes or
the presence of PGE(2) in polychaetes may be a factor in their role as a dietary constituent required for shrimp oocyte
development.
Addresses: [Meunpol, O.; Yoonpun, R.] Kasetsart Univ, Fac Fisheries, Dept Aquaculture, Bangkok 10900, Thailand;
[Piyatiratitivorakul, S.] Chulalongkorn Univ, Fac Sci, Ctr Excellence Marine Biotechnol, Bangkok 10330, Thailand;
[Piyatiratitivorakul, S.] Chulalongkorn Univ, Fac Sci, Dept Marine Sci, Bangkok 10330, Thailand; [Duangjai, E.] Rajmangala
Univ Technol Lanna, Fac Sci & Agr Technol, Dept Anim Sci & Fisheries, Phupiang 55000, Nan, Thailand
Reprint Address: Meunpol, O, Kasetsart Univ, Fac Fisheries, Dept Aquaculture, Bangkok 10900, Thailand.
Funding Agency
Grant Number
This work was funded by the National Research Council of Thailand to O. Meunpol. Many thanks to First Farm and Sam Dao
Farm for providing P. monodon broodstock, the CP Group of Companies for some polychaete samples, CENTEX and Mahidol
University, Bangkok, for histology facilities.
Times Cited: 0
Publisher: SPRINGER TOKYO
Publisher Address: 1-11-11 KUDAN-KITA, CHIYODA-KU, TOKYO, 102-0073, JAPAN
ISSN: 0919-9268
DOI: 10.1007/s12562-009-0208-8
29-char Source Abbrev.: FISHERIES SCIENCE
ISO Source Abbrev.: Fish. Sci.
Subject Category: Fisheries
ISI Document Delivery No.: 589VW
Record 186 of 271
Author(s): Samart, C (Samart, Chanatip); Chaiya, C (Chaiya, Chaiyan); Reubroycharoen, P (Reubroycharoen, Prasert)
Title: Biodiesel production by methanolysis of soybean oil using calcium supported on mesoporous silica catalyst
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Source: ENERGY CONVERSION AND MANAGEMENT, 51 (7): 1428-1431 JUL 2010
Language: English
Author Keywords: Biodiesel; Calcium; Heterogeneous catalyst; Soybean oil
KeyWords Plus: SOLID-BASE CATALYST; SUPERCRITICAL METHANOL; VEGETABLE-OILS; TRANSESTERIFICATION;
ALUMINA; OXIDE
Abstract: The transesterification of soybean oil with a CaO/mesoporous silica catalyst was achieved. The effects of CaO loading
levels in the mesoporous silica catalyst, the amount of catalyst to substrate level and the reaction temperature and time on the
conversion of soybean oil were investigated. Increasing the temperature and reaction time raised the total conversion of soybean
oil attained. The optimized condition, found to be 15 wt.% of Ca loading on the mesoporous silica catalyst, a 5% (w/w) catalyst
to oil level and a reaction temperature of 60 degrees C for 8 h, provided the highest yield of 95.2%. The fuel properties of the
biodiesel obtained under these optimized conditions were acceptable under the biodiesel standards of Thailand. (C) 2010
Addresses: [Samart, Chanatip] Thammasat Univ, Dept Chem, Fac Sci & Technol, Klongluang 12121, Pathumtani, Thailand;
[Chaiya, Chaiyan] Rajamangala Univ Technol, Fac Engn, Div Chem Engn, Bangkok 10120, Thailand; [Reubroycharoen, Prasert]
Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand; [Reubroycharoen, Prasert] Chulalongkorn Univ, Ctr
Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Samart, C, Thammasat Univ, Dept Chem, Fac Sci & Technol, Klongluang 12121, Pathumtani, Thailand.
Funding Agency
Grant Number
Targeted Research Initiative Funding, Thammasat University
This research was granted by Thailand Research Fund (TRF) and Targeted Research Initiative Funding, Thammasat University.
The authors would like to thank Mr. Jatuporn, Chemistry Dept., Thammasat University for H-NMR service.
Times Cited: 0
ISSN: 0196-8904
DOI: 10.1016/j.enconman.2010.01.017
29-char Source Abbrev.: ENERG CONV MANAGE
ISO Source Abbrev.: Energy Conv. Manag.
Subject Category: Thermodynamics; Energy & Fuels; Mechanics; Physics, Nuclear
ISI Document Delivery No.: 589RN
Record 187 of 271
Author(s): Sathapattayanon, A (Sathapattayanon, A.); Yukawa, T (Yukawa, T.); Seelanan, T (Seelanan, T.)
Title: Dendrobium roseiodorum (Orchidaceae): a new species from Vietnam
Source: BLUMEA, 55 (1): 75-79 APR 2010
Language: English
Author Keywords: Dendrobium roseiodorum; new species; Orchidaceae; Vietnam
Abstract: In the course of revisionary work of Dendrobium section Formosae, we found some misinterpretations of Dendrobium
kontumense. Dendrobium schildhaueri is placed as a synonym of D. kontumense and D. roseiodorum, a new species from Vietnam,
is described.
Addresses: [Sathapattayanon, A.; Seelanan, T.] Chulalongkorn Univ, Biol Sci Program, Fac Sci, Bangkok 10330, Thailand;
[Sathapattayanon, A.; Seelanan, T.] Chulalongkorn Univ, Dept Bot, Fac Sci, Bangkok 10330, Thailand; [Yukawa, T.] Natl
Museum Nat & Sci, Tsukuba Bot Garden, Tsukuba, Ibaraki 3050005, Japan
Reprint Address: Sathapattayanon, A, Chulalongkorn Univ, Biol Sci Program, Fac Sci, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Chulalongkorn University Fund
3000047
Thai government
Research Program on Conservation and Utilization of Biodiversity
Center of Excellence in Biodiversity, Faculty of Science, Chulalongkorn University CEB_D_10_2006
This work was kindly supported by the 90th Anniversary of Chulalongkorn University Fund, Ratchadaphiseksomphot
Endowment Fund, Graduate School, Chulalongkorn University (3000047) and also supported by the Thai government budget
2006, under the Research Program on Conservation and Utilization of Biodiversity and the Center of Excellence in Biodiversity,
Faculty of Science, Chulalongkorn University (CEB_D_10_2006). This study was also partly supported by a Grant-in-Aid to
Scientific Research from the Japan Society for the Promotion of Science to T. Yukawa. We are indebted to the directors and
curators of AUU, BCU, BM, BR, C, E, K, L, P, SING, TNS and W for making their collections available for study. Dr. Obchant
Thaithong, Prof. Dr. Leonid V. Averyanov, Dr. Hul Sovanmoly, Dr. Henrik A. Pedersen and Mr. Andre Schuiteman are
gratefully acknowledged for their kind assistance and valuable suggestions during our study. We wish to express our grateful
thanks to Mr. Kazuhiro Suzuki for his skilful cultivation of this orchid group. Our thanks are also extended to Tran Kim Khanh
and Subhkon Khruekerd for providing the material, Mr. Tanucha Boonjaras for the line drawing and Ms. Suchada Wongpakam
for improving the manuscript.
Times Cited: 0
Publisher: RIJKSHERBARIUM
Publisher Address: PO BOX 9514, 2300 RA LEIDEN, NETHERLANDS
ISSN: 0006-5196
DOI: 10.3767/000651910X499240
29-char Source Abbrev.: BLUMEA
ISO Source Abbrev.: Blumea
Subject Category: Plant Sciences
ISI Document Delivery No.: 589DH
Record 188 of 271
Author(s): Vangnai, AS (Vangnai, A. S.); Promden, W (Promden, W.); De-Eknamkul, W (De-Eknamkul, W.); Matsushita, K
(Matsushita, K.); Toyama, H (Toyama, H.)
Title: Molecular characterization and heterologous expression of quinate dehydrogenase gene from Gluconobacter oxydans
IFO3244
Source: BIOCHEMISTRY-MOSCOW, 75 (4): 452-459 APR 2010
Language: English
Author Keywords: quinate dehydrogenase gene; heterologous gene expression; Gluconobacter oxydans; pyrroloquinoline quinone
KeyWords Plus: QUINOPROTEIN GLUCOSE-DEHYDROGENASE; ESCHERICHIA-COLI; ALCOHOL
DEHYDROGENASES; SHIKIMATE PATHWAY; ACID; PURIFICATION; OXIDATION; ALIGNMENT; BACTERIA;
ENZYMES
Abstract: The quinate dehydrogenase (QDH) from Gluconobacter oxydans IFO3244 exhibits high affinity for quinate, suggesting
its application in shikimate production. Nucleotide sequence analysis of the qdh gene revealed a full-length of 2475-bp encoding
an 824-amino acid protein. The qdh gene has the unusual TTG translation initiation codon. Conserved regions and a signature
sequence for the quinoprotein family were observed. Phylogenetic analysis demonstrated relatedness of QDH from G. oxydans to
other quinate/shikimate dehydrogenases with the highest similarity (56%) with that of Acinetobacter calcoaceticus ADP1 and
lower similarity (36%) with a membrane-bound glucose dehydrogenase of Escherichia coli. The function of the gene coding for
QDH was confirmed by heterologous gene expression in pyrroloquinoline quinone-synthesizing Pseudomonas putida HK5.
Addresses: [Vangnai, A. S.; Promden, W.] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand;
[De-Eknamkul, W.] Chulalongkorn Univ, Fac Pharmaceut Sci, Dept Pharmacognosy, Bangkok 10330, Thailand; [Matsushita, K.]
Yamaguchi Univ, Fac Agr, Dept Biol Chem, Lab Appl Microbiol, Yamaguchi 7538515, Japan; [Toyama, H.] Univ Ryukyus, Fac
Agr, Dept Biosci & Biotechnol, Okinawa 9030213, Japan
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Reprint Address: Vangnai, AS, Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand.
[email protected]
Funding Agency
Grant Number
MRG4980169
Japan Society for the Promotion of Science (JSPS)
Research grant (MRG4980169) support to A. V. from The Thailand Research Fund (TRF) is appreciated. This work was
carried out under the collaboration of the Core University Program supported by the Scientific Cooperation Program from The
Japan Society for the Promotion of Science (JSPS) and the National Research Council of Thailand (NRCT).
Times Cited: 0
Publisher: MAIK NAUKA/INTERPERIODICA/SPRINGER
Publisher Address: 233 SPRING ST, NEW YORK, NY 10013-1578 USA
ISSN: 0006-2979
DOI: 10.1134/S0006297910040085
29-char Source Abbrev.: BIOCHEMISTRY-ENGL TR
ISO Source Abbrev.: Biochem.-Moscow
ISI Document Delivery No.: 588TF
Record 189 of 271
Author(s): Chaitanawisuti, N (Chaitanawisuti, Nilnaj); Sungsirin, T (Sungsirin, Tosapon); Piyatiratitivorakul, S
(Piyatiratitivorakul, Somkiat)
Title: Effects of dietary calcium and phosphorus supplementation on the growth performance of juvenile spotted babylon
Babylonia areolata culture in a recirculating culture system
Source: AQUACULTURE INTERNATIONAL, 18 (3): 303-313 APR 2010
Language: English
Author Keywords: Babylonia areolata; Calcium; Phosphorus; Recirculating culture system; Growth
KeyWords Plus: CALCIUM/PHOSPHORUS RATIO; FLOW-THROUGH; LINK 1807; SURVIVAL; WATER; SEAWATER
Abstract: A feeding experiment was conducted to determine the effects of dietary calcium and phosphorus, and the interaction
between calcium and phosphorus, on the growth of juvenile spotted babylon, Babylonia areolata, cultured in a recirculating
culture system. Nine isonitrogenous experimental diets supplemented with three levels of calcium (1, 4, and 7%) for each of three
levels of phosphorus (1, 3, and 5%) were prepared using fish meal, squid meal, and shrimp meal as the main protein sources.
Juveniles with an initial average body weight of 0.59 +/- A 0.09 g were fed to satiation once daily with one of the nine diets for
180 days. Absolute and specific growth rates were calculated for both shell length and whole wet body weight. Results showed
that dietary calcium and phosphorus supplementation significantly affected the growth of juvenile spotted babylon (P < 0.05), but
not survival and feed-conversion ratio. The specific growth rate in shell length (SGRL) ranged from 0.32 to 0.39% day(-1). No
significant difference among phosphorus levels and no significant interaction between calcium and phosphorus in SGRL of the
spotted babylon (P > 0.05) was found, but significant differences were observed among calcium levels, irrespective of
phosphorus levels (P < 0.05). For 1 and 7% supplemental calcium, the spotted babylon had significantly higher SGRL than those
fed diets supplemented with 4% calcium. However, the specific growth rate in body weight (SGRW) ranged from 0.91 to 1.19%
day(-1) with no significant difference among calcium and phosphorus levels and no significant interaction between calcium and
phosphorus (P > 0.05). Survival and feed-conversion ratio were not significantly affected by dietary calcium and phosphorus
levels with ranges from 91.00 to 95.00% and 2.43 to 2.76, respectively. At the end of the experiment, shell abnormality of B.
areolata was found for all feeding trials.
Addresses: [Chaitanawisuti, Nilnaj] Chulalongkorn Univ, Aquat Resources Res Inst, Bangkok 10330, Thailand; [Sungsirin,
Tosapon; Piyatiratitivorakul, Somkiat] Chulalongkorn Univ, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Chaitanawisuti, N, Chulalongkorn Univ, Aquat Resources Res Inst, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
This study was supported by the National Research Council of Thailand (NRCT), who provided funding for this research in the
fiscal years 1996-2007. We are especially grateful to Professor Dr Yutaka Natsukari, Faculty of Fisheries, Nagasaki University,
for his encouragement and critical reading of the manuscript.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0967-6120
DOI: 10.1007/s10499-009-9244-8
29-char Source Abbrev.: AQUACULT INT
ISO Source Abbrev.: Aquac. Int.
Subject Category: Fisheries
ISI Document Delivery No.: 588TE
Record 190 of 271
Author(s): Puanngam, M (Puanngam, Mahitti); Ohira, SI (Ohira, Shin-Ichi); Unob, F (Unob, Fuangfa); Wang, JH (Wang,
Jian-Hua); Dasgupta, PK (Dasgupta, Purnendu K.)
Title: A cold plasma dielectric barrier discharge atomic emission detector for atmospheric mercury
Source: TALANTA, 81 (3): 1109-1115 MAY 15 2010
Language: English
Author Keywords: Mercury; Atomic emission; Dielectric barrier discharge; Preconcentration on gold; Airborne mercury
KeyWords Plus: SPECTROMETRY; VAPOR; SPECIATION; AIR; AMALGAMATION
Abstract: An automated atmospheric elemental mercury analyzer based on the dielectric barrier discharge (DBD) atomic
emission technique was developed. The instrument is based on a gold-on tungsten coiled filament preconcentrator fashioned from
commercial quartz-halogen lamps, a DBD excitation source and a radiation detector. An in-house program provided system
control and data collection. Several types of radiation detectors, e.g., charge coupled device (CCD) array spectrometers,
photomultiplier tubes (PMTs) and phototube (PT) are investigated. An argon plasma provided better performance than a nitrogen
plasma. With 0.88 standard liters per min sampling rate and preconcentration for 2 min, the estimated (S/N = 3) detection limit
was 0.12 ng/L (Hg-0), the linear range extended at least to 6.6 ng Hg/L. Typical RSD values for determination at the single digit
ng/L level ranged from 2.8 to 4.9%. In 19 separate calibrations conducted over 7 clays, the calibration slope had a standard error
of 1%. The system was applied to the determination of atmospheric mercury in two different locations. (c) 2010 Elsevier B.V. All
rights reserved.
Addresses: [Puanngam, Mahitti; Ohira, Shin-Ichi; Dasgupta, Purnendu K.] Univ Texas Arlington, Dept Chem & Biochem,
Arlington, TX 76019 USA; [Puanngam, Mahitti; Unob, Fuangfa] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330,
Thailand; [Wang, Jian-Hua] Northeastern Univ, Res Ctr Analyt Sci, Shenyang 110004, Peoples R China
Reprint Address: Dasgupta, PK, Univ Texas Arlington, Dept Chem & Biochem, 700 Planetarium Pl, Arlington, TX 76019 USA.
Funding Agency
Grant Number
US National Foundation
CHE-0821969
Natural Science Foundation of China 20821120292
Royal Golden Jubilee Ph.D. Program PHD/37/2550
This research was supported in part by the US National Foundation grant CHE-0821969 and Natural Science Foundation of
China Major International Joint Research Project 20821120292. MP would like to acknowledge the financial support from the
Thailand Research Fund through the Royal Golden Jubilee Ph.D. Program (Grant PHD/37/2550). We thank Ramon Ruiz,
Environmental Health & Safety office, UTA and the Environmental Light Recyclers, Inc, Ft. Worth, TX and Dr. Martina Kroll for
editorial assistance.
Times Cited: 0
23/11/2553 18:37
ISSN: 0039-9140
DOI: 10.1016/j.talanta.2010.02.005
ISI Document Delivery No.: 586CA
Record 191 of 271
Author(s): Wittayasuporn, M (Wittayasuporn, Mayura); Rengpipat, S (Rengpipat, Sirirat); Palaga, T (Palaga, Tanapat);
Asawanonda, P (Asawanonda, Pravit); Anumansirikul, N (Anumansirikul, Nattaporn); Wanichwecharungruang, SP
(Wanichwecharungruang, Supasorn P.)
Title: Chitosan derivative nanocarrier: Safety evaluation, antibacterial property and ascorbyl palmitate encapsulation
Source: JOURNAL OF MICROENCAPSULATION, 27 (3): 218-225 MAY 2010
Language: English
Author Keywords: Chitosan; cytotoxicity; irritation; ascorbyl palmitate; photostability
KeyWords Plus: DEGRADATION RATES; NANOPARTICLES; STABILITY; CARRIERS; ACID
Abstract: A chitosan derivative, methyl ether-terminated poly(ethylene oxide)-4-methoxycinnamolyphthaloylchitosan (PCPLC)
was prepared, characterized and self-assembled into nanoparticles. Encapsulation of ascorbyl palmitate (AP) into PCPLC gave
689 +/- 0.98 nm particles with encapsulation efficiency of 84% at 56% drug loading. The encapsulated AP showed significant
improved stability as examined by <SU1</SUH NMR spectroscopy. The obtained particles displayed no short-term cytotoxicity
against the human skin melanoma A-375 cell line using the MTT assay and no short-term skin irritation on human volunteers using
a single topical application as patch and photopatch tests. In addition, aqueous suspension of PCPLC nanoparticles successfully
inhibited the growth of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 25923.</.
Addresses: [Anumansirikul, Nattaporn; Wanichwecharungruang, Supasorn P.] Chulalongkorn Univ, Fac Sci, Dept Chem, Sensor
Res Unit, Bangkok 10330, Thailand; [Wittayasuporn, Mayura] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330,
Thailand; [Rengpipat, Sirirat; Palaga, Tanapat] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok 10330, Thailand;
[Asawanonda, Pravit] Chulalongkorn Univ, Dept Med, Div Dermatol, Fac Sci, Bangkok 10330, Thailand; [Anumansirikul,
Nattaporn] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Wanichwecharungruang, SP, Chulalongkorn Univ, Fac Sci, Dept Chem, Sensor Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
Research Council of Thailand
lThe authors would like to acknowledge financial support from the Research Council of Thailand.
Times Cited: 1
ISSN: 0265-2048
DOI: 10.3109/02652040903067836
29-char Source Abbrev.: J MICROENCAPSUL
ISO Source Abbrev.: J. Microencapsul.
Subject Category: Chemistry, Applied; Engineering, Chemical; Pharmacology & Pharmacy
ISI Document Delivery No.: 585YP
Record 192 of 271
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Author(s): Lertlapwasin, R (Lertlapwasin, Ratthaya); Bhawawet, N (Bhawawet, Nakara); Imyim, A (Imyim, Apichat);
Fuangswasdi, S (Fuangswasdi, Saowarux)
Title: Ionic liquid extraction of heavy metal ions by 2-aminothiophenol in 1-butyl-3-methylimidazolium hexafluorophosphate and
their association constants
Source: SEPARATION AND PURIFICATION TECHNOLOGY, 72 (1): 70-76 MAR 30 2010
Language: English
Author Keywords: Ionic liquid; Liquid-liquid extraction; 2-Aminothiophenol; Heavy metal ions; Association constant
KeyWords Plus: SOLVENT-EXTRACTION; CROWN-ETHERS; LIQUID/LIQUID EXTRACTION; IMIDAZOLIUM CATION;
GREEN SOLVENTS; MOLTEN-SALTS; COMPLEXES; CATALYSIS; 2-AMINOBENZENETHIOL; AMINOBENZENETHIOL
Abstract: The ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate, [BMIM]PF6, was synthesized and characterized
by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. The optimum conditions for the
extraction of Ni2+, Cu2+ and Pb2+ in water by liquid-liquid extraction method were investigated using the synthetic ionic liquid
combined with 2-aminothiophenol ligand. The results showed that while the optimum pH for the extraction of Ni2+ and Pb2+ was
4-6 and 5, respectively; the extraction of Cu2+ was independent of the pH of solution. The extraction equilibria of Ni2+, Cu2+
and Pb2+ were reached within 120, 30 and 30 min, respectively. The existence of sodium, calcium, magnesium, sulfate and
chloride ions did not significantly affect the extraction efficiency of all metal ions. The stoichiometries of complexes between
Ni2+, Cu2+ and Pb2+ and the ligand are 1:3, 1:2 and 1:2, respectively. The extracted Ni2+ in ionic liquid phase could be
back-transferred into 3% H2O2 in 0.5 M HNO3 at 20 min of contact time and the extracted Cu2+ and Pb2+ could be stripped with
1 M HNO3 at the contact time of 20 and 10 min, respectively, with the percentage stripping higher than 95%. The extraction
efficiency of all metal ions with the ligand in the ionic liquid was higher than that obtained in chloroform using the same
conditions. The association constants of complexes between Ni2+ and Pb2+ and the ligand in ionic liquid are 2.26 x 10(7) and
2.97 x 10(2), respectively. (C) 2010 Elsevier B.V. All rights reserved.
Addresses: [Lertlapwasin, Ratthaya; Bhawawet, Nakara; Imyim, Apichat; Fuangswasdi, Saowarux] Chulalongkorn Univ, Dept
Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Fuangswasdi, S, Chulalongkorn Univ, Dept Chem, Fac Sci, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Environmental Analysis Research Unit (EARU) GRU51-017-23-008
The success of this research can be attributed to Environmental Analysis Research Unit (EARU) and was financially supported
by the Grant for Research Unit (GRU51-017-23-008), and the 90th Anniversary of Chulalongkorn University Fund
(Ratchadaphiseksomphot Endowment Fund), Chulalongkorn University. The Center of Excellence for Petroleum,
Petrochemicals, and Advanced Materials, Chulalongkorn University, is also acknowledged.
Times Cited: 0
ISSN: 1383-5866
DOI: 10.1016/j.seppur.2010.01.004
29-char Source Abbrev.: SEP PURIF TECHNOL
ISO Source Abbrev.: Sep. Purif. Technol.
Subject Category: Engineering, Chemical
ISI Document Delivery No.: 583ZR
Record 193 of 271
Author(s): Panha, S (Panha, Somsak); Sutcharit, C (Sutcharit, Chirasak); Can, DN (Dang Ngoc Can)
Title: An anatomical note on Moellendorffia eastlakeana (Mollendorff, 1882) a camaenid land snail from Vietnam (Gastropoda:
Pulmonata: Camaenidae)
Source: NAUTILUS, 124 (1): 20-24 APR 6 2010
Language: English
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Author Keywords: Gastropoda; pulmonate; Traumatophora; Chloritis; Trichelix
Abstract: Newly collected specimens of Moellendorffia eastlakeana (Mollendorff, 1882) expand the known range of this species
into Vietnam. Using these new Vietnamese and existing museum samples we have re-described the species including new
information on radula and genital anatomy. Comparison with the type material of M. callitricha (Bavay and Dautzenberg, 1899)
from Vietnam suggested M. callitricha is a junior synonym of M. eastlakeana.
Addresses: [Panha, Somsak; Sutcharit, Chirasak] Chulalongkorn Univ, Fac Sci, Dept Biol, Anim Systemat Res Unit, Bangkok
10330, Thailand; [Dang Ngoc Can] Inst Ecol & Biol Resources, Dept Zool, Hanoi, Vietnam
Reprint Address: Panha, S, Chulalongkorn Univ, Fac Sci, Dept Biol, Anim Systemat Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Research Fund (TBF)
TRF-CNRS
BET 245005
RES-A1B1-7
SP2-TKK2555-PERFECTA
DEFRA
We thank F. Naggs (NHM, London), R. Janssen (SMF, Frankfurt), and P. Bouchet and V Heros (MNHN, Paris) for permitting
SR and C.S. to investigate type materials, and F.N. for critical comments on the manuscript. We are especially grateful to S.
Natsupakpong, P. Tongkerd, N. Pattaramanon, and S. Pholkoksung for providing important literature and assistance in the field.
This project was funded by the Thailand Research Fund (TBF), the Thai-French Project TRF-CNRS (BET 245005), the
RES-A1B1-7, the SP2-TKK2555-PERFECTA, and the Darwin Initiative Project (DEFRA).
Times Cited: 0
Publisher: BAILEY-MATTHEWS SHELL MUSEUM
Publisher Address: C/O DR JOSE H LEAL, ASSOCIATE/MANAGING EDITOR, 3075 SANIBEL-CAPTIVA RD, SANIBEL,
FL 33957 USA
ISSN: 0028-1344
29-char Source Abbrev.: NAUTILUS
ISO Source Abbrev.: Nautilus
Subject Category: Marine & Freshwater Biology; Zoology
ISI Document Delivery No.: 582VU
Record 194 of 271
Author(s): Changul, C (Changul, C.); Sutthirat, C (Sutthirat, Chakkaphan); Padmanahban, G (Padmanahban, G.); Tongcumpou, C
(Tongcumpou, C.)
Title: Assessing the acidic potential of waste rock in the Akara gold mine, Thailand
Source: ENVIRONMENTAL EARTH SCIENCES, 60 (5): 1065-1071 MAY 2010
Language: English
Author Keywords: ABA; NAG; Gold mine; Thailand; Waste rock
KeyWords Plus: DRAINAGE; PREDICTION; OXIDATION
Abstract: Acid mine drainage (AMD) is the environmental issue that generates the greatest public concern regarding the mining
industry. Thus, characterization of mine waste rock according to acid generation potential is necessary for mining operations to
ensure proper waste rock storage and to avoid future adverse environmental effects. Therefore, this study was conducted to
estimate the potential of AMD generation in the largest operating gold mine in Thailand by using acid base accounting and net acid
generation tests. Representative samples of six types of waste rock classified by mining geologists for mineral processing and
waste dumping were collected for this study: volcanic clastic, porphyritic andesite, andesite, silicified tuff, silicified lapilli tuff,
and sheared tuff. Under various conditions, experimental results indicate that only silicified lapilli tuff and shear tuff are
potentially acid-forming materials. The results indicate that AMD generation may possibly occur a long time after mine closure
due to the lag time of the dissolution of acid-neutralizing sources. Acidic generation from some waste rocks may occur in the
future based on environmental conditions, particularly the oxidation of sulphide minerals by the combination of oxygen and water.
Therefore, a proper design for waste rock dumping and storage is necessary to reduce the risk of AMD generation in future. It is
advisable to install a surface management system to control the overland flow direction away from the waste dump area and
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tailing storage facility and to install a second water storage pond next to the main storage pond to store the spilled water during
storms and the rainy season. A water quality monitoring plan that focuses on disturbed areas such as water storage ponds and mine
pits should be put in place.
Addresses: [Sutthirat, Chakkaphan] Chulalongkorn Univ, Fac Sci, Dept Geol, Bangkok 10330, Thailand; [Changul, C.; Sutthirat,
Chakkaphan; Tongcumpou, C.] Chulalongkorn Univ, Natl Ctr Excellence Environm & Hazardous Waste Ma, Bangkok 10330,
Thailand; [Sutthirat, Chakkaphan; Tongcumpou, C.] Chulalongkorn Univ, Environm Res Inst, Bangkok 10330, Thailand;
[Padmanahban, G.] N Dakota State Univ, Dept Civil Engn, Fargo, ND 58105 USA
Reprint Address: Sutthirat, C, Chulalongkorn Univ, Fac Sci, Dept Geol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Center of Excellence for Environmental and Hazardous Waste Management (NCE-EHWM)
Graduate School at Chulalongkorn University
This research could not have been conducted without the financial support of the National Center of Excellence for
Environmental and Hazardous Waste Management (NCE-EHWM) and the Graduate School at Chulalongkorn University. Their
support is gratefully acknowledged. The authors also thank the following individuals: Yaowanud Chandung and Supanit
Supananti of the Akara Gold Mine for allowing the collection of samples from the mine waste rock; Thananun Pratummin and
Veerasak Lunvongsa, colleagues from the same mine, for helping with the field investigation and data; and Jiraprapa Neampan
and Sopit Poompuang of the Geology Department, Chulalongkorn University, for assistance with the experiments. The authors
also acknowledge the help from Mary Pull, Director, Center for Writers, North Dakota State University, USA, to improve the
clarity of language of the manuscript.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1866-6280
DOI: 10.1007/s12665-009-0251-x
29-char Source Abbrev.: ENVIRON EARTH SCI
ISO Source Abbrev.: Environ. Earth Sci.
Subject Category: Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
Record 195 of 271
Author(s): Supasai, T (Supasai, T.); Dangtip, S (Dangtip, S.); Learngarunsri, P (Learngarunsri, P.); Boonyopakorn, N
(Boonyopakorn, N.); Wisitsoraat, A (Wisitsoraat, A.); Hodak, SK (Hodak, Satreerat K.)
Title: Influence of temperature annealing on optical properties of SrTiO3/BaTiO3 multilayered films on indium tin oxide
Source: APPLIED SURFACE SCIENCE, 256 (14): 4462-4467 MAY 1 2010
Language: English
Author Keywords: Perovskites; Optical properties; Multilayers; Annealing; Sol-gel
KeyWords Plus: TITANATE THIN-FILMS; PULSED-LASER DEPOSITION; DIELECTRIC-PROPERTIES; ELECTRICALPROPERTIES; BAND-GAP; BATIO3; SRTIO3; MICROSTRUCTURE; SUBSTRATE; SUPERLATTICES
Abstract: We have prepared SrTiO3/BaTiO3 thin films with multilayered structures deposited on indium tin oxide (ITO) coated
glass by a sol-gel deposition and heating at 300-650 degrees C. The optical properties were obtained by UV-vis spectroscopy.
The films show a high transmittance (approximately 85%) in the visible region. The optical band gap of the films is tunable in the
3.64-4.19 eV range by varying the annealing temperature. An abrupt decrease towards the bulk band gap value is observed at
annealing temperatures above 600 degrees C. The multilayered film annealed at 650 degrees C exhibited the maximum refractive
index of 2.09-1.91 in the 450-750 nm wavelength range. The XRD and AFM results indicate that the films annealed above 600
degrees C are substantially more crystalline than the films prepared at lower temperatures which were used to change their optical
band gap and complex refractive index to an extent that depended on the annealing temperature. (C) 2010 Elsevier B.V. All rights
reserved.
Addresses: [Supasai, T.; Hodak, Satreerat K.] Chulalongkorn Univ, Dept Phys, Fac Sci, Bangkok 10330, Thailand; [Dangtip, S.;
Learngarunsri, P.; Boonyopakorn, N.] Mahidol Univ, Fac Sci, Dept Phys, Bangkok 10400, Thailand; [Dangtip, S.; Learngarunsri,
P.; Boonyopakorn, N.] Mahidol Univ, Fac Sci, NANOTEC COE, Bangkok 10400, Thailand; [Wisitsoraat, A.] Natl Elect & Comp
Technol Ctr NECTEC, Nanoelect & MEMS Lab, Taipei 12120, Taiwan; [Hodak, Satreerat K.] Chulalongkorn Univ, Ctr Innovat
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Nanotechnol, Bangkok 10330, Thailand
Reprint Address: Hodak, SK, Chulalongkorn Univ, Dept Phys, Fac Sci, Payathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Toray Science Foundation (TTSF)
Center of Innovative Nanotechnology (CIN)
The authors would like to thank Mr. Manop Tirarattanasompot for the help in the X-ray measurements. Miss Thidarat Supasai
would like to thanks Thailand Graduate Institute of Science and Technology (TGIST) for supporting her Ph.D. study. Authors
would like to thank the Thailand Research Fund (TRF), the Thailand Toray Science Foundation (TTSF) and Center of
Innovative Nanotechnology (CIN) for financial support. Also, this work was supported by Research Funds from the Faculty of
Science, Chulalongkorn University (A1B1), the Thai Government Stimulus Package 2 (TKK2555), under the Project for
Establishment of Comprehensive Center for Innovative Food, Health Products and Agriculture and Chulalongkorn University
Centenary Academic Development Project. We also thank Dr. Jose H. Hodak for valuable discussions about sol-gel process.
Times Cited: 1
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2010.01.072
ISI Document Delivery No.: 582VX
Record 196 of 271
Author(s): Kengpipat, N (Kengpipat, Nattachai); Iwata, K (Iwata, Kenichi); Omori, T (Omori, Toshio); Pinyakong, O (Pinyakong,
Onruthai)
Title: Monitoring survival of phenanthrene-utilizing Sphingobium sp P2 in soil microcosms using green fluorescent protein as a
marker
Source: SCIENCEASIA, 36 (1): 76-80 MAR 2010
Language: English
Author Keywords: biodegradation; bioremediation; bioaugmentation; polycyclic aromatic hydrocarbons
KeyWords Plus: SP STRAIN P2; GENE-EXPRESSION; DEGRADATION; BIOREMEDIATION; IDENTIFICATION
Abstract: Phenanthrene is a polycyclic aromatic hydrocarbon which belongs to a class of toxic environmental pollutants that has
been accumulating due to a variety of anthropogenic activities. We attempted to use Sphingobium sp. P2, which is capable of
utilizing phenanthrene as its sole source of carbon and energy, in bioaugmentation treatments. For successful bioremediation,
monitoring the survival and metabolic activity of bioaugmented bacteria are required. This study aimed to use green fluorescent
protein as a marker to estimate the survival of Sphingobium sp. P2 in bioaugmented soil microcosms. The gfp was integrated via
Tn5 transposition into the chromosome of strain P2. The gfp-inserted strains were identified by green fluorescence emission under
UV light. The gfp was stably maintained in strain P2, and the strain still retained the ability to use phenanthrene as a sole carbon
and energy source. Soil microcosm experiments revealed that survival of the strain P2-gfp and its phenanthrene-degrading
capacity may depend on indigenous microorganisms and nutrients in the soils. The strain P2-gfp can be used to evaluate the
success of bioaugmentation.
Addresses: [Kengpipat, Nattachai; Pinyakong, Onruthai] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok 10330,
Thailand; [Iwata, Kenichi] Univ Tokyo, Biotechnol Res Ctr, Bunkyo Ku, Tokyo 1138657, Japan; [Omori, Toshio] Shibaura Inst
Technol, Open Res Ctr, Tokyo 1088548, Japan; [Pinyakong, Onruthai] Chulalongkom Univ, NCE EHWM, Bangkok 10330,
Thailand
Reprint Address: Pinyakong, O, Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
National Centre of Excellence for Environmental and Hazardous Waste Management
Chulalongkom University
This work was supported by the National Centre of Excellence for Environmental and Hazardous Waste Management, a research
grant from Chulalongkom University to the Bioremediation Research Unit, Department of Microbiology, and Faculty of Science,
and Research Funds from the Faculty of Science, Chulalongkom University.
Times Cited: 0
ISSN: 1513-1874
DOI: 10.2306/scienceasia1513-1874.2010.36.076
ISI Document Delivery No.: 581AD
Record 197 of 271
Author(s): Kemprasit, Y (Kemprasit, Yupaporn); Danpattanamongkon, N (Danpattanamongkon, Ngarmcherd); Savettaseranee, K
(Savettaseranee, Knograt)
Title: Some results on semigroups admitting ring structure
Source: SCIENCEASIA, 36 (1): 85-88 MAR 2010
Language: English
Author Keywords: multiplicative interval semigroup
Abstract: Lawson has given a sufficient condition for a semigroup S which guarantees that S does not admit a ring structure. From
Lawson's theorem, we have that the multiplicative interval semigroup [0,1] does not admit a ring structure. In this paper we give
an elementary proof of this fact. We then show that the multiplicative interval semigroup [a, 1] with -1 <= a < 0 < a(2) <= 1 does
not admit the structure of a ring, a fact which cannot be derived from Lawson's theorem. These facts are then applied to show that
every nontrivial multiplicative bounded interval semigroup on R does not admit a ring structure.
Addresses: [Kemprasit, Yupaporn; Danpattanamongkon, Ngarmcherd] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330,
Thailand; [Savettaseranee, Knograt] Kasetsart Univ, Fac Sci, Dept Math, Bangkok 10900, Thailand
Reprint Address: Kemprasit, Y, Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand.
Times Cited: 0
ISSN: 1513-1874
DOI: 10.2306/scienceasia1513-1874.2010.36.085
ISI Document Delivery No.: 581AD
Record 198 of 271
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Author(s): Lehotay, SJ (Lehotay, Steven J.); Son, KA (Son, Kyung Ae); Kwon, H (Kwon, Hyeyoung); Koesukwiwat, U
(Koesukwiwat, Urairat); Fu, WS (Fu, Wusheng); Mastovska, K (Mastovska, Katerina); Hoh, E (Hoh, Eunha); Leepipatpiboon, N
(Leepipatpiboon, Natchanun)
Title: Comparison of QuEChERS sample preparation methods for the analysis of pesticide residues in fruits and vegetables
Source: JOURNAL OF CHROMATOGRAPHY A, 1217 (16): 2548-2560 APR 16 2010
Language: English
Author Keywords: QuEChERS; Pesticide residue analysis; Sample preparation; Gas chromatography; Liquid chromatography;
Mass spectrometry; Fruits and vegetables
KeyWords Plus: TANDEM MASS-SPECTROMETRY; SOLID-PHASE EXTRACTION; PERFORMANCE LIQUIDCHROMATOGRAPHY; FAST GAS-CHROMATOGRAPHY; MULTIRESIDUE ANALYTICAL METHOD; FLAME
PHOTOMETRIC DETECTION; ETHYL-ACETATE EXTRACTION; BETA-LACTAM ANTIBIOTICS; LOW-TEMPERATURE
CLEANUP; GC-MS ANALYSIS
Abstract: This article describes the comparison of different versions of an easy, rapid and low-cost sample preparation approach
for the determination of pesticide residues in fruits and vegetables by concurrent use of gas and liquid chromatography (GC and
LC) coupled to mass spectrometry (MS) for detection. The sample preparation approach is known as QuEChERS, which stands
for "quick, easy, cheap, effective, rugged and safe". The three compared versions were based on the original unbuffered method,
which was first published in 2003, and two interlaboratory validated versions: AOAC Official Method 2007.01, which uses
acetate buffering, and European Committee for Standardization (CEN) Standard Method EN 15662, which calls for citrate
buffering. LC-MS/MS and GC-MS analyses using each method were tested from 50 to 1000 ng/g in apple-blueberry sauce, peas
and limes spiked with 32 representative pesticides. As expected, the results were excellent (overall average of 98% recoveries
with 10% RSD) using all 3 versions, except the unbuffered method gave somewhat lower recoveries for the few pH-dependent
pesticides. The different methods worked equally well for all matrices tested with equivalent amounts of matrix co-extractives
measured, matrix effects on quantification and chemical noise from matrix in the chromatographic backgrounds. The acetatebuffered version gave higher and more consistent recoveries for pymetrozine than the other versions in all 3 matrices and for
thiabendazole in limes. None of the versions consistently worked well for chlorothalonil, folpet or tolylfluanid in peas, but the
acetate-buffered method gave better results for screening of those pesticides. Also, due to the recent shortage in acetonitrile
(MeCN), ethyl acetate (EtOAc) was evaluated as a substitute solvent in the acetate-buffered QuEChERS version, but it generally
led to less clean extracts and lower recoveries of pymetrozine, thiabendazole, acephate, methamidophos, omethoate and
dimethoate. In summary, the acetate-buffered version of QuEChERS using MeCN exhibited advantages compared to the other
tested methods in the study. Published by Elsevier B.V.
Addresses: [Lehotay, Steven J.; Koesukwiwat, Urairat; Mastovska, Katerina; Hoh, Eunha] ARS, USDA, Eastern Reg Res Ctr,
Wyndmoor, PA 19038 USA; [Son, Kyung Ae; Kwon, Hyeyoung] Natl Acad Agr Sci, Rural Dev Adm, Suwon 441707, South
Korea; [Koesukwiwat, Urairat; Leepipatpiboon, Natchanun] Chulalongkorn Univ, Fac Sci, Dept Chem, Chromatog & Separat Res
Unit, Bangkok 10330, Thailand; [Fu, Wusheng] Fujian Ctr Dis Control & Prevent, Fuzhou 350001, Peoples R China
Reprint Address: Lehotay, SJ, ARS, USDA, Eastern Reg Res Ctr, 600 E Mermaid Ln, Wyndmoor, PA 19038 USA.
Times Cited: 0
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2010.01.044
29-char Source Abbrev.: J CHROMATOGR A
ISO Source Abbrev.: J. Chromatogr. A
Subject Category: Biochemical Research Methods; Chemistry, Analytical
ISI Document Delivery No.: 582AJ
Record 199 of 271
Author(s): Saibuathong, N (Saibuathong, Nopphawan); Saejeng, Y (Saejeng, Yupa); Pruksathorn, K (Pruksathorn, Kejvalee);
Hunsom, M (Hunsom, Mali); Tantavichet, N (Tantavichet, Nisit)
Title: Catalyst electrode preparation for PEM fuel cells by electrodeposition
Source: JOURNAL OF APPLIED ELECTROCHEMISTRY, 40 (5): 903-910 Sp. Iss. SI MAY 2010
Language: English
Author Keywords: Pt catalyst; Pt-Co catalyst; PEMFC; Oxygen reduction reaction; Electrodeposition
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KeyWords Plus: GLASSY-CARBON ELECTRODES; OXYGEN-REDUCTION; PULSE ELECTRODEPOSITION;
TRANSITION-METALS; ALLOY CATALYSTS; PLATINUM; CO; NANOPARTICLES; ELECTROCATALYSTS;
MICROPARTICLES
Abstract: The preparation of catalyst electrodes by electrodeposition for the oxygen reduction reaction (ORR) in proton exchange
membrane fuel cells (PEMFCs) has been studied. This work looks at the potential to apply the electrodeposition technique, in the
forms of direct current (DC) and pulse plating electrodepositions, to prepare Pt and Pt-Co alloy catalysts for membrane electrode
assemblies (MEAs). The preparation of the non-catalyst layer was found to be important for the electrodeposition of Pt catalysts.
The activities of the electrodeposited catalysts, both pure Pt and Pt-Co alloy, produced by pulse plating are substantially higher
than that of the Pt catalyst produced by DC electrodeposition. The improvement in electroactivity towards the ORR of the
electrodeposited catalysts produced by pulse plating is likely due to the finer structures of electrodeposited catalysts which
contain smaller catalyst particles compared to those produced by DC electrodeposition. A maximum performance towards the
ORR in PEMFCs was achieved from the catalysts prepared by pulse plating using a charge density of 2 C cm(-2), a pulse current
density of 200 mA cm(-2), a 5% duty cycle and a pulse frequency of 1 Hz.
Addresses: [Saibuathong, Nopphawan; Saejeng, Yupa; Pruksathorn, Kejvalee; Hunsom, Mali; Tantavichet, Nisit] Chulalongkorn
Univ, Fuels Res Ctr, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Tantavichet, N, Chulalongkorn Univ, Fuels Res Ctr, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center for Petroleum, Petrochemicals and Advanced Materials, the Office of the National Research Council of
Thailand (NRCT)
The authors express their gratitude to the Center for Petroleum, Petrochemicals and Advanced Materials, the Office of the
National Research Council of Thailand (NRCT), and the Graduate School of Chulalongkorn University for financial support
during the course of this study.
Times Cited: 1
Publisher: SPRINGER
ISSN: 0021-891X
DOI: 10.1007/s10800-009-9965-4
29-char Source Abbrev.: J APPL ELECTROCHEM
ISO Source Abbrev.: J. Appl. Electrochem.
Subject Category: Electrochemistry
ISI Document Delivery No.: 581FC
Record 200 of 271
Author(s): Klamklang, S (Klamklang, Songsak); Vergnes, H (Vergnes, Hugues); Senocq, F (Senocq, Francois); Pruksathorn, K
(Pruksathorn, Kejvalee); Duverneuil, P (Duverneuil, Patrick); Damronglerd, S (Damronglerd, Somsak)
Title: Deposition of tin oxide, iridium and iridium oxide films by metal-organic chemical vapor deposition for electrochemical
wastewater treatment
Source: JOURNAL OF APPLIED ELECTROCHEMISTRY, 40 (5): 997-1004 Sp. Iss. SI MAY 2010
Language: English
Author Keywords: Wastewater treatment; Electrochemical oxidation; Specific electrode; MOCVD; Thin film coating
KeyWords Plus: BORON-DOPED DIAMOND; ELECTRODES; DEGRADATION; OXIDATION; POLLUTANTS; COATINGS;
ANODES; ACID; ELECTROCATALYSIS; PHENOL
Abstract: In this research, the specific electrodes were prepared by metal-organic chemical vapor deposition (MOCVD) in a
hot-wall CVD reactor with the presence of O-2 under reduced pressure. The Ir protective layer was deposited by using
(Methylcyclopentadienyl) (1,5-cyclooctadiene) iridium (I), (MeCp)Ir(COD), as precursor. Tetraethyltin (TET) was used as
precursor for the deposition of SnO2 active layer. The optimum condition for Ir film deposition was at 300 A degrees C, 125 of
O-2/(MeCp)Ir(COD) molar ratio and 12 Torr of total pressure. While that of SnO2 active layer was at 380 A degrees C, 1200 of
O-2/TET molar ratio and 15 Torr of total pressure. The prepared SnO2/Ir/Ti electrodes were tested for anodic oxidation of
organic pollutant in a simple three-electrode electrochemical reactor using oxalic acid as model solution. The electrochemical
experiments indicate that more than 80% of organic pollutant was removed after 2.1 Ah/L of charge has been applied. The kinetic
investigation gives a two-step process for organic pollutant degradation, the kinetic was zero-order and first-order with respect to
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TOC of model solution for high and low TOC concentrations, respectively.
Addresses: [Klamklang, Songsak; Vergnes, Hugues; Duverneuil, Patrick] Lab Genie Chim, F-31106 Toulouse 01, France;
[Klamklang, Songsak; Pruksathorn, Kejvalee; Damronglerd, Somsak] Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok
10330, Thailand; [Senocq, Francois] Ctr Interuniv Rech & Ingn Mat, F-31077 Toulouse 04, France
Reprint Address: Vergnes, H, Lab Genie Chim, Site Basso Cambo,5 Rue Paulin Talabot, F-31106 Toulouse 01, France.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0021-891X
DOI: 10.1007/s10800-009-9968-1
29-char Source Abbrev.: J APPL ELECTROCHEM
ISO Source Abbrev.: J. Appl. Electrochem.
Subject Category: Electrochemistry
ISI Document Delivery No.: 581FC
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[ 1|2|3]
Record 201 of 271
Author(s): Chumpoo, J (Chumpoo, Jade); Prasassarakich, P (Prasassarakich, Pattarapan)
Title: Bio-Oil from Hydro-Liquefaction of Bagasse in Supercritical Ethanol
Source: ENERGY & FUELS, 24: 2071-2077 MAR 2010
Language: English
KeyWords Plus: SUGAR-CANE BAGASSE; WOODY BIOMASS; COAL-LIQUEFACTION; FLUID EXTRACTION; FAST
PYROLYSIS; WATER; CATALYSTS; CELLULOSE; TETRALIN; SAWDUST
Abstract: The liquefaction of sugar cane bagasse in supercritical ethanol, with or without various proportions of water as a
proton donor, was conducted in a batch reactor to evaluate the optimal conditions for bio-oil production. The following variables
were studied: temperature, initial H-2 pressure, and catalyst type (FeS, Fe2S3/AC, and FeSO4). For noncatalytic liquefaction
using similar to 100% (v/v) ethanol, a high oil yield of 59.6% (dal) and biomass conversion of 89.8% were obtained at 330
degrees C under initial H, pressure of 4.93 MPa. For catalytic liquefaction in the presence of FeSO4 under the same conditions,
the oil yield increased to 73.8% (daf) and the biomass conversion reached 99.9%. The bio-oil obtained had a 1.81-fold higher
heating value (26.8 MJ/kg) than the original starting sugar cane bagasse (14.8 MJ/kg). From gas chromatography/mass
spectrometry (GC/MS) analysis, the dominant components of the liquefaction oil were found to be phenolic compounds,
aldehydes, and esters, such as phenol, phenol derivatives, and furan derivatives.
Addresses: [Chumpoo, Jade; Prasassarakich, Pattarapan] Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330,
Thailand; [Prasassarakich, Pattarapan] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Prasassarakich, P, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Energy Policy and Planning Office (EPPO)
Ministry of Energy, Thailand
This research was financially supported by the Center for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn
University, and the Energy Policy and Planning Office (EPPO), Ministry of Energy, Thailand.
Times Cited: 0
ISSN: 0887-0624
DOI: 10.1021/ef901241e
29-char Source Abbrev.: ENERG FUEL
ISO Source Abbrev.: Energy Fuels
ISI Document Delivery No.: 581YY
Record 202 of 271
Author(s): Prapavorarat, A (Prapavorarat, Adisak); Pongsomboon, S (Pongsomboon, Siriporn); Tassanakajon, A (Tassanakajon,
Anchalee)
Title: Identification of genes expressed in response to yellow head virus infection in the black tiger shrimp, Penaeus monodon, by
suppression subtractive hybridization
Source: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY, 34 (6): 611-617 JUN 2010
Language: English
Author Keywords: Shrimp immunity; Penaeus monodon; Yellow head virus; Suppression subtractive hybridization
1 of 59
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KeyWords Plus: SPOT-SYNDROME-VIRUS; C-TYPE LECTIN; SERINE PROTEINASE-INHIBITOR;
ANTILIPOPOLYSACCHARIDE FACTOR; FENNEROPENAEUS-CHINENSIS; WSSV INFECTION; ANTIMICROBIAL
ACTIVITY; MOLECULAR-CLONING; PACIFASTACUS-LENIUSCULUS; MARSUPENAEUS-JAPONICUS
Abstract: Suppression subtractive hybridization (SSH) was employed to identify yellow head virus (YHV)-responsive genes
from the hemocytes of the black tiger shrimp, Penaeus monodon. Two SSH cDNA libraries were constructed to identify viral
responsive genes in the early (241) and late (48/721) phases of YHV infection. From 240 randomly selected clones from each
library, 155 and 30 non-redundant transcripts were obtained for the early and late libraries, respectively. From these clones, 72
and 16, respectively, corresponded to known genes (E-values < 1 x 10(-4)) that could be categorized according to their putative
functions. The upregulated genes identified as likely to be associated with cell defense and homeostasis were found at a high
proportion in the 241 SSH library, but not in 48/721 SSH library implying that these immune molecules participate in viral
defense immunity in the early phase of YHV infection whereas their expressions were suppressed in the late phase of infection.
Novel YHV-responsive genes were uncovered from these SSH libraries including caspases, histidine triad nucleotide-binding
protein 2, Rab11, beta-integrin, tetraspanin, prostaglandin E synthase, transglutaminase, Kazal-type serine proteinase inhibitor and
antimicrobial peptides. Among these YHV-responsive genes, several have been previously reported to participate in defense
against white-spot syndrome virus (WSSV) implying that YHV infection in shrimp induces similar host immune responses as
observed during WSSV infection. The expression of four apparently upregulated immune-related genes identified from the two
SSH libraries, anti-lipopolysaccharide factor isoform 6 (ALFPm6), crustin isoform 1 (crustinPm1), transglutaminase and
Kazal-type serine proteinase inhibitor isoform 2 (SPIPm2), was evaluated by real-time RT-PCR to reveal differential expression
in response to YHV infection at 6, 24, 48 and 72 h post-infection. The results confirmed their differential expression and
upregulation, and thus verified the success of the SSHs and the likely involvement of these genes in shrimp antiviral mechanisms.
(C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Prapavorarat, Adisak; Pongsomboon, Siriporn; Tassanakajon, Anchalee] Chulalongkorn Univ, Ctr Excellence Mol
Biol & Genom Shrimp, Fac Sci, Dept Biochem, Bangkok 10330, Thailand; [Pongsomboon, Siriporn] Natl Sci & Technol Dev
Agcy, Natl Ctr Genet Engn & Biotechnol BIOTEC, Klongluang 12120, Pathumthani, Thailand
Reprint Address: Tassanakajon, A, Chulalongkorn Univ, Ctr Excellence Mol Biol & Genom Shrimp, Fac Sci, Dept Biochem,
Funding Agency
Grant Number
Royal Golden Jubilee PhD Program
This work was supported by grants from The Commission on Higher Education and Thailand National Center for Genetic
Engineering and Biotechnology (BIOTEC). A student fellowship granted to A. Prapavorarat by the Royal Golden Jubilee PhD
Program, Thailand Research Fund, is also gratefully acknowledged.
Times Cited: 1
ISSN: 0145-305X
DOI: 10.1016/j.dci.2010.01.002
ISI Document Delivery No.: 580KL
Record 203 of 271
Author(s): Kukusamude, C (Kukusamude, Chunyapuk); Santalad, A (Santalad, Apichai); Boonchiangma, S (Boonchiangma,
Suthasinee); Burakham, R (Burakham, Rodjana); Srijaranai, S (Srijaranai, Supalax); Chailapakul, O (Chailapakul, Orawon)
Title: Mixed micelle-cloud point extraction for the analysis of penicillin residues in bovine milk by high performance liquid
chromatography
Source: TALANTA, 81 (1-2): 486-492 APR 15 2010
Language: English
2 of 59
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Author Keywords: Antibiotics; Penicillins; Mixed micelle-cloud point extraction; High performance liquid chromatography;
Milk
KeyWords Plus: DIODE-ARRAY DETECTION; TANDEM MASS-SPECTROMETRY; BETA-LACTAM ANTIBIOTICS;
SPECTROPHOTOMETRIC DETERMINATION; QUANTITATIVE-DETERMINATION; MULTIRESIDUE DETERMINATION;
MEDIATED EXTRACTION; VETERINARY DRUGS; UV DETECTION; HPLC METHOD
Abstract: A mixed micelle-cloud point extraction (MM-CPE) has been developed for the analysis of penicillin antibiotics
(ampicillin, penicillin G, oxacillin, and cloxacillin) in milk samples using Triton X-114 (TX-114) and cethyl trimethylammonium
bromide (CTAB) as the mixed micellar extractant. The parameters affecting the MM-CPE that were investigated including
solution pH. (TAB concentration, TX-114 concentration, electrolyte salt, equilibration temperature and incubation time. The
optimum MM-CPE conditions were: 10 mmol L-1 phosphate buffer pH 8,0.06% (w/v) CTAB, 1.5% (w/v) TX-114, and 7% (w/v)
Na2SO4, and 5 min equilibration at 40 degrees C. The separation of penicillins was achieved within 8 min under the HPLC
conditions: a Vydac C-18 column, isocratic elution of 5 mmol L-1 phosphate buffer (pH 6.6) and methanol (55:45, v/v), and a
flow rate of 1 mL min(-1), with photodiode array detection at 215 and 244 nm. Under the selected condition, the proposed method
gave linear calibrations in the range 0.002-1014 mL(-1) with correlation coefficients greater than 0.999. Limits of detection
(LOD) were 2-3 ng mL(-1), and 15-40-fold enhancement compared to that without preconcentration. Good reproducibility was
achieved with relative standard deviation <5% for peak area and <3% for retention time. High accuracy, with recoveries higher
than 80%, was obtained. The proposed mixed micelle-CPE-HPLC method has shown to be of high potential for the analysis of
penicillin residues in milk with LOD comparable to the established maximum residue limits (4-30 ng mL(-1)). (C) 2009 Elsevier
B.V. All rights reserved.
Addresses: [Kukusamude, Chunyapuk; Santalad, Apichai; Boonchiangma, Suthasinee; Burakham, Rodjana; Srijaranai, Supalax]
Khon Kaen Univ, Dept Chem, Khon Kaen 40002, Thailand; [Kukusamude, Chunyapuk; Santalad, Apichai; Boonchiangma,
Suthasinee; Burakham, Rodjana; Srijaranai, Supalax] Khon Kaen Univ, Fac Sci, Ctr Excellence Innovat Chem, Khon Kaen 40002,
Thailand; [Chailapakul, Orawon] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Reprint Address: Srijaranai, S, Khon Kaen Univ, Dept Chem, Khon Kaen 40002, Thailand.
Funding Agency
Grant Number
Center of Excellence for Innovation in Chemistry (PERCH-CIC)
Ministry of Education
Commission on the Higher Education
Financial support from the Center of Excellence for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education,
Ministry of Education is gratefully acknowledged. We are also grateful to the Commission on the Higher Education through the
CHE-RES-RG project and the National Research Council of Thailand (NRCT) through the High throughput Screening/Analysis:
Tool for Drug Discovery, Disease diagnosis and Health safety project for financial support. Prof. Dr. Richard L Deming
(Department of Chemistry and Biochemistry, California State University, Fullerton, CA) is gratefully acknowledged for his
helpful discussion.
Times Cited: 2
ISSN: 0039-9140
DOI: 10.1016/j.talanta.2009.12.029
ISI Document Delivery No.: 575FQ
Record 204 of 271
Author(s): Chakrapani, S (Chakrapani, Sudha); Sompornpisut, P (Sompornpisut, Pornthep); Intharathep, P (Intharathep,
Pathumwadee); Roux, B (Roux, Benoit); Perozo, E (Perozo, Eduardo)
Title: The activated state of a sodium channel voltage sensor in a membrane environment
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Source: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 107
(12): 5435-5440 MAR 23 2010
Language: English
Author Keywords: complementation assays; EPR spectroscopy; gating charges; electrical excitability
KeyWords Plus: SHAKER K+ CHANNEL; GATED ION CHANNELS; DEPENDENT CONFORMATIONAL-CHANGES;
FOCUSED ELECTRIC-FIELD; GATING PORE CURRENT; POTASSIUM CHANNEL; LIPID-BILAYER; CHARGE
MOVEMENT; ALPHA-HELICES; ELECTROSTATIC INTERACTIONS
Abstract: Direct structural insights on the fundamental mechanisms of permeation, selectivity, and gating remain unavailable for
the Na+ and Ca2+ channel families. Here, we report the spectroscopic structural characterization of the isolated Voltage-Sensor
Domain (VSD) of the prokaryotic Na+ channel NaChBac in a lipid bilayer. Site-directed spin-labeling and EPR spectroscopy
were carried out for 118 mutants covering all of the VSD. EPR environmental data were used to unambiguously assign the
secondary structure elements, define membrane insertion limits, and evaluate the activated conformation of the isolated-VSD in
the membrane using restrain-driven molecular dynamics simulations. The overall three-dimensional fold of the NaChBac-VSD
closely mirrors those seen in KvAP, Kv1.2, Kv1.2-2.1 chimera, and MlotiK1. However, in comparison to the membraneembedded KvAP-VSD, the structural dynamics of the NaChBac-VSD reveals a much tighter helix packing, with subtle differences
in the local environment of the gating charges and their interaction with the rest of the protein. Using cell complementation assays
we show that the NaChBac-VSD can provide a conduit to the transport of ions in the resting or "down" conformation, a feature
consistent with our EPR water accessibility measurements in the activated or "up" conformation. These results suggest that the
overall architecture of VSD's is remarkably conserved among K+ and Na+ channels and that pathways for gating-pore currents
may be intrinsic to most voltage-sensors. Cell complementation assays also provide information about the putative location of the
gating charges in the "down/resting" state and hence a glimpse of the extent of conformational changes during activation.
Addresses: [Chakrapani, Sudha; Roux, Benoit; Perozo, Eduardo] Univ Chicago, Ctr Integrat Sci, Dept Biochem & Mol Biol,
Chicago, IL 60637 USA; [Sompornpisut, Pornthep; Intharathep, Pathumwadee] Chulalongkorn Univ, Fac Sci, Dept Chem,
Computat Chem Unit Cell, Bangkok 10330, Thailand
Reprint Address: Perozo, E, Univ Chicago, Ctr Integrat Sci, Dept Biochem & Mol Biol, 929 E 57th St, Chicago, IL 60637 USA.
Funding Agency
Grant Number
National Institutes of Health GM057846
American Heart Association
We thank V. Jogini, L. Cuello, and V. V~squez for insightful discussions; and H. Raghuraman, for critical reading and comments
on the manuscript. This work was supported by National Institutes of Health Grants GM057846 (to E. P.); American Heart
Association Postdoctoral Fellowship (to S. C.); and Rachadapisek Sompoch Endowment Fund (Chulalongkorn University) (to
P. S.).
Times Cited: 2
Publisher: NATL ACAD SCIENCES
Publisher Address: 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
ISSN: 0027-8424
DOI: 10.1073/pnas.0914109107
29-char Source Abbrev.: PROC NAT ACAD SCI USA
ISO Source Abbrev.: Proc. Natl. Acad. Sci. U. S. A.
ISI Document Delivery No.: 573GY
Record 205 of 271
Author(s): Tongraar, A (Tongraar, Anan); Hannongbua, S (Hannongbua, Supot); Rode, BM (Rode, Bernd Michael)
Title: QM/MM MD Simulations of Iodide Ion (I-) in Aqueous Solution: A Delicate Balance between Ion-Water and Water-Water
H-Bond Interactions
Source: JOURNAL OF PHYSICAL CHEMISTRY A, 114 (12): 4334-4339 APR 1 2010
Language: English
4 of 59
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KeyWords Plus: MOLECULAR-DYNAMICS SIMULATIONS; AB-INITIO; PHOTOELECTRON-SPECTROSCOPY;
HYDRATED IONS; CLUSTERS; ANION; SPECTRA; POTENTIALS; SOLVATION; MOBILITY
Abstract: The characteristics of an iodide ion (I-) in aqueous solution were investigated by means of HF/MM and B3LYP/MM
molecular dynamics simulations, in which the ion and its surrounding water molecules were treated at HF and B3LYP levels using
the LANL2DZdp and D95 V+ basis sets for I- and water, respectively. According to both the HF/MM and B3LYP/MM results, the
ion-water interactions are relatively weak, compared to the water-water hydrogen bonds, thus causing an unstructured nature of
the hydration shell. Comparing the HF and B3LYP treatments for the description of this hydrated ion, the overestimation of the
ion-water hydrogen-bond strength by the B3LYP method is recognizable, yielding a remarkably more compact and too rigid
ion-water complex.
Addresses: [Tongraar, Anan] Suranaree Univ Technol, Inst Sci, Sch Chem, Nakhon Ratchasima 30000, Thailand; [Hannongbua,
Supot] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Rode, Bernd Michael] Innsbruck Univ, Inst Gen
Inorgan & Theoret Chem, Theoret Chem Div, A-6020 Innsbruck, Austria
Reprint Address: Tongraar, A, Suranaree Univ Technol, Inst Sci, Sch Chem, Nakhon Ratchasima 30000, Thailand.
Funding Agency
Grant Number
Suranaree University of Technology (SUT)
This work was financially supported by the Thailand Research Fund (TRF) and Suranaree University of Technology (SUT).
B.M.R. acknowledges support by the Austrian Science Foundation (FWF).
Times Cited: 0
ISSN: 1089-5639
DOI: 10.1021/jp910435d
29-char Source Abbrev.: J PHYS CHEM A
ISO Source Abbrev.: J. Phys. Chem. A
Subject Category: Chemistry, Physical; Physics, Atomic, Molecular & Chemical
ISI Document Delivery No.: 572TH
Record 206 of 271
Author(s): Kittinaovarat, S (Kittinaovarat, Siriwan); Kansomwan, P (Kansomwan, Panida); Jiratumnukul, N (Jiratumnukul,
Nantana)
Title: Chitosan/modified montmorillonite beads and adsorption Reactive Red 120
Source: APPLIED CLAY SCIENCE, 48 (1-2): 87-91 Sp. Iss. SI MAR 2010
Language: English
Author Keywords: Chitosan; Montmorillonite; Dye adsorption
KeyWords Plus: CHITOSAN BEAD; DYE; DEGRADATION
Abstract: Different molar mass ((Mw) over bar) chitosans were prepared by the hydrolysis of commercial (Mw) over bar
480,000 chitosan (CTS480) with hydrogen peroxide at 4% (v/v) for 6 and 24 h and at 15% (v/v) for 24 h, yielding new smaller
polymers of (Mw) over bar 130,000 (CTS130), 69,000 (CTS69) and 14,000 (CTS14), respectively. The four chitosan
preparations were used to modify montmorillonite (MMT), but all only slightly increased the basal spacing. In contrast,
intercalation of octadecylamine at a 2:5 (m/m) ratio of octadecylamine:MMT significantly increased the basal spacing. Therefore,
octadecylamine was added to enhance the layer separation. The CTS69 chitosan preparation yielded the highest basal spacing.
This mMMT (MMT:octadecylamine: CTS69= 5:2:5 (m/m/m), respectively), was then used to prepare CTS480:mMMT composite
beads with different mass ratios of CTS480 to mMMT, which were then evaluated as an adsorbent of Reactive Red 120. Three
factors, (i) pH of dye solution in the range of 4-6, (ii) increasing the mMMT ratio and (iii) the amount of adsorbent to dye ratio,
improved the adsorption efficiency. The adsorption isotherm of 1:1 (m/m) CTS480: mMMT composite beads agreed well with
the Langmuir model. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Kittinaovarat, Siriwan; Kansomwan, Panida; Jiratumnukul, Nantana] Chulalongkorn Univ, Dept Mat Sci, Fac Sci,
5 of 59
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Reprint Address: Kittinaovarat, S, Chulalongkorn Univ, Dept Mat Sci, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The authors acknowledge the Cu Graduate School Thesis Grant from Chulalongkorn University, and thank Bio-Line Co., Ltd.,
for supplying chitosan, and the Thai Nippon Chemical Industry Cp., Ltd., for providing montmorillonite.
Times Cited: 0
ISSN: 0169-1317
DOI: 10.1016/j.clay.2009.12.017
29-char Source Abbrev.: APPL CLAY SCI
ISO Source Abbrev.: Appl. Clay Sci.
Subject Category: Mineralogy
ISI Document Delivery No.: 574RO
Record 207 of 271
Author(s): Buchatip, S (Buchatip, Sutawan); Ananthanawat, C (Ananthanawat, Cheeraporn); Sithigorngul, P (Sithigorngul,
Paisarn); Sangvanich, P (Sangvanich, Polkit); Rengpipat, S (Rengpipat, Sirirat); Hoven, VP (Hoven, Voravee P.)
Title: Detection of the shrimp pathogenic bacteria, Vibrio harveyi, by a quartz crystal microbalance-specific antibody based
sensor
Source: SENSORS AND ACTUATORS B-CHEMICAL, 145 (1): 259-264 MAR 4 2010
Language: English
Author Keywords: Quartz crystal microbalance; Vibrio harveyi; Monoclonal antibody; Self-assembled monolayer; Bacteria
KeyWords Plus: SELF-ASSEMBLED MONOLAYERS; PIEZOELECTRIC IMMUNOSENSOR; GMOS DETECTION;
IMMOBILIZATION; BIOSENSOR; WATER
Abstract: An immunosensor based on a quartz crystal microbalance (QCM) was developed for detection of Vibrio harveyi (V.
harveyi), a pathogenic bacteria causing morbidity and even a high level of fatality in commercial shrimp cultures, including
Penaeus monodon. Immobilization of a monoclonal antibody (MAb) against V. harveyi onto the gold electrode of a QCM plate
involved a three-step procedure: (1) the formation of a self-assembled monolayer (SAM) of a carboxyl-terminated alkanethiol,
(2) activation of the carboxyl groups by N-hydroxysuccinimide (NHS) and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide
(EDC), and (3) attachment of the MAb to the activated carboxyl groups. The developed QCM-based immunosensor could be used
for the detection of V. harveyi in a working range of 10(3)-10(7) CFU/mL, with no detectable cross-reactivity to Vibrio vulnificus
and Vibrio parahaemolyticus. Controlling the density of surface-immobilized MAb, by the formation of mixed SAMs containing
hydroxyl-terminated alkanethiol in combination with the treatment of 1% (w/v) bovine serum albumin (BSA) as a blocking
reagent, can significantly improve the binding efficiency of the targeted bacteria. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Hoven, Voravee P.] Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok 10330, Thailand;
[Buchatip, Sutawan] Chulalongkorn Univ, Fac Sci, Program Petrochem & Polymer Sci, Bangkok 10330, Thailand; [Buchatip,
Sutawan] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Ananthanawat, Cheeraporn]
Chulalongkorn Univ, Fac Sci, Program Macromol Sci, Bangkok 10330, Thailand; [Sangvanich, Polkit] Chulalongkorn Univ, Fac
Sci, Dept Chem, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand; [Rengpipat, Sirirat] Chulalongkorn Univ, Fac Sci, Dept
Microbiol, Bangkok 10330, Thailand; [Sithigorngul, Paisarn] Srinakharinwirot Univ, Fac Sci, Dept Biol, Bangkok 10110,
Thailand
Reprint Address: Hoven, VP, Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Phyathai Rd, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
MRG485S004
Research Promotion Division
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52/2547
12/2548
This research is supported by a TRF Master Research Grant (TRF-MAG), contract number MRG485S004, from the Thailand
Research Fund (TRF), and the Research Promotion Division, the National Research Council of Thailand (NRCT), through the
Nanopolymer Project (contract number GOR-SOR-SOR 52/2547 and 12/2548). Gold sputtering facility and contact angle
goniometer provided by the National Metal and Materials Technology Center (MTEC) are gratefully acknowledged. The authors
are also indebted to associate professor Chamras Promptmas and Dr. Jamikorn Suk-Anake of Department of Clinical Chemistry,
Faculty of Medical Technology, Mahidol University, for providing initial assistance with the QCM set-up. The authors
appreciated a language editing service provided by the Publication Counselling Unit (PCU), Faculty of Science, Chulalongkorn
University.
Times Cited: 0
ISSN: 0925-4005
DOI: 10.1016/j.snb.2009.12.003
29-char Source Abbrev.: SENSOR ACTUATOR B-CHEM
ISO Source Abbrev.: Sens. Actuator B-Chem.
Subject Category: Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
ISI Document Delivery No.: 571OI
Record 208 of 271
Author(s): Kananont, N (Kananont, Nungruthai); Pichyangkura, R (Pichyangkura, Rath); Chanprame, S (Chanprame, Sermsiri);
Chadchawan, S (Chadchawan, Supachitra); Limpanavech, P (Limpanavech, Patchra)
Title: Chitosan specificity for the in vitro seed germination of two Dendrobium orchids (Asparagales: Orchidaceae)
Source: SCIENTIA HORTICULTURAE, 124 (2): 239-247 MAR 15 2010
Language: English
Author Keywords: Dendrobium; Orchid; In vitro seed germination; Chitosan
KeyWords Plus: GROWTH; RESISTANCE; QUALITY; DEACETYLATION; LEAVES; RICE
Abstract: The effects of different types of chitosan on seed germination and protocorm development were determined for two
orchid species, Dendrobium bigibbum var. compactum and Dendrobium formosum. Six chitosan types derived from polymer or
oligomer chitosan each with 70,80 or 90% levels of deacetylation (P70, P80, P90, O70, O80 and O90, respectively), were
evaluated as direct medium supplements at 0, 10, 20, 40 or 80 mg/L in modified VW medium by following seed germination and
protocorm growth for 12 weeks. Chitosan of all six tested types and four concentrations were found to significantly enhance the
proportion of D. formosum seeds that germinated, when compared to these germinated without chitosan. In contrast, chitosan
caused no enhanced germination rate was noted for D. bigibbum var. compactum with all tested chitosans and doses tested.
However, almost all types of chitosan at 10 mg/L, except 090, were able to significantly improve the growth of D. bigibbum var.
compactum protocorms, whilst 10 or 20 mg/L of P70 chitosan was the best formula to enhance the growth of D. formosum
protocorms. It is concluded that chitosan responses in seed germination and protocorm development were somewhat species and
developmental stage dependent. Therefore, the appropriate chitosan application for each plant species should be evaluated first
before use. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Kananont, Nungruthai; Chadchawan, Supachitra; Limpanavech, Patchra] Chulalongkorn Univ, Fac Sci, Dept Bot,
Environm & Plant Physiol Res Unit, Bangkok 10330, Thailand; [Kananont, Nungruthai; Pichyangkura, Rath; Chadchawan,
Supachitra; Limpanavech, Patchra] Chulalongkorn Univ, Ctr Chitin Chitosan Biomat, Bangkok 10330, Thailand; [Pichyangkura,
Rath] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand; [Chanprame, Sermsiri] Kasetsart Univ, Fac Agr
Kamphaeng Saen, Dept Hort, Kamphaeng Saen 73140, Nakhon Pathom, Thailand
Reprint Address: Chadchawan, S, Chulalongkorn Univ, Fac Sci, Dept Bot, Environm & Plant Physiol Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
Agricultural Research Development Agency
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This research was supported by Agricultural Research Development Agency (Public Organization). We would like to thank the
support from Research Funds from the Faculty of Science, Chulalongkorn University. D. formosum capsules were provided by
Mr. Sittichai Prikdang, the Head of Nam Tok Ngao National Park, Ranong, Thailand. The authors would like to express our
appreciation to Prof Dr. Richard A. Criley, Dept. of Tropical Plant and Soil Science, University of Hawaii at Mancia, and two
anonymous referees for their valuable comments, and Dr. Robert Butcher for his comments and English language proof reading.
Finally, we would like to thank all members of the research team for all their contributions to this project.
Times Cited: 0
ISSN: 0304-4238
DOI: 10.1016/j.scienta.2009.11.019
29-char Source Abbrev.: SCI HORT-AMSTERDAM
ISO Source Abbrev.: Sci. Hortic.
Subject Category: Horticulture
ISI Document Delivery No.: 571TY
Record 209 of 271
Author(s): Supungul, P (Supungul, Premruethai); Rimphanitchayakit, V (Rimphanitchayakit, Vichien); Aoki, T (Aoki, Takashi);
Hirono, I (Hirono, Ikuo); Tassanakajon, A (Tassanakajon, Anchalee)
Title: Molecular characterization and expression analysis of a c-type and two novel muramidase-deficient i-type lysozymes from
Penaeus monodon
Source: FISH & SHELLFISH IMMUNOLOGY, 28 (3): 490-498 MAR 2010
Language: English
Author Keywords: Penaeus monodon; Lysozyme; Innate immunity; Antimicrobial activity; Muramidase activity
KeyWords Plus: GOOSE-TYPE LYSOZYME; BLACK TIGER SHRIMP; ANTIMICROBIAL PEPTIDES; MEDICINAL LEECH;
LYTIC ACTIVITY; WHITE SHRIMP; CLONING; INVERTEBRATES; VIBRIO; GENE
Abstract: Lysozyme is a widely distributed hydrolase possessing a hydrolytic activity against peptidoglycan in the bacterial cell
wall and, hence, causing lysis of the bacteria. Two types of lysozymes, the c-type (PmLyzc) and the two catalytic residue ablated
i-type lysozymes (PmLyzi1 and 2), were identified from the Penaeus monodon EST database (http //pmonodon biotec.or.th). By
RT-PCR, PmLyzc transcript was detected in all tissues gill, antennal gland, epipodite, heart, hemocyte, hepatopancreas, eyestalk,
lymphoid organ and intestine, and highly expressed in hemocyte. The expression of PmLyzi2 mRNA was highest in heart while
undetected in gill, lymphoid organ and intestine. The PmLyzi1 transcript was expressed only in hepatopancreas The up-regulation
of mRNA transcription after bacterial challenge was observed only with PmLyzc. To investigate their biological activities, the
three mature recombinant proteins were expressed in an Escherichia coli system. Although the turbidimetric assay revealed that
only recombinant PmLyzc possessed the muramidase activity, all of them variably exhibited antimicrobial activity against both
Gram-positive and -negative bacteria especially the shrimp pathogens, Vibrio species. The antimicrobial activities of recombinant
PmLyzc was the most effective one These results demonstrated that the ability of lysozyme to inhibit the growth of bacteria did not
depend only on the muramidase activity. Differences in tissue expression pattern of these gene transcripts and their antimicrobial
activities indicated the multifunction of lysozyme as immune defense and digestive enzymes in P monodon (C) 2010 Elsevier Ltd
All rights reserved
Addresses: [Supungul, Premruethai; Rimphanitchayakit, Vichien; Tassanakajon, Anchalee] Chulalongkorn Univ, Fac Sci, Dept
Biochem, Ctr Excellence Mol Biol & Genom Shrimp, Bangkok 10330, Thailand; [Supungul, Premruethai] Natl Sci & Technol Dev
Agcy, Natl Ctr Genet Engn & Biotechnol BIOTEC, Pathum Thani 12120, Thailand; [Aoki, Takashi; Hirono, Ikuo] Tokyo Univ
Marine Sci & Technol, Grad Sch Marine Sci & Technol, Lab Genome Sci, Tokyo, Japan
Funding Agency
Grant Number
TRG5280019
JSPS-NRCT
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The present work was supported by grants from (i) the Thailand Research Fund (Grant no. TRG5280019) to P. Supungul, (ii)
the Commission on Higher Education, (iii) the Thailand National Center for Genetic Engineering and Biotechnology (BIOTEC).
The exchange of scientists under the JSPS-NRCT Program is also acknowledged.
Times Cited: 1
ISSN: 1050-4648
DOI: 10.1016/j.fsi.2010.01.003
ISI Document Delivery No.: 570UX
Record 210 of 271
Author(s): Suwanvijitr, T (Suwanvijitr, Trin); Kaewmuangmoon, J (Kaewmuangmoon, Jirattikarn); Cherdshewasart, W
(Cherdshewasart, Wichai); Chanchao, C (Chanchao, Chanpen)
Title: MORPHOMETRIC AND GENETIC VARIATION IN PUERARIA MIRIFICA CULTIVARS ACROSS THAILAND
Source: PAKISTAN JOURNAL OF BOTANY, 42 (1): 97-109 JAN 2010
Language: English
Abstract: Pueraria mirifica is a leguminous herbal plant whose tuberous roots are used in estrogen replacement. Leaves were
collected for 39 locations across Thailand with seed pods and flowers also collected when available from a subset of 14 and 11
of these locations respectively. Morphometric analysis revealed a low level of variation between cultivars. Linear regression
analysis suggested that leaves trended to decrease in size from the West to the East whilst pods trended to increase in size from the
South to the North and also the West to the East. Genetic analysis was conducted by direct sequencing of one nuclear (rDNA ITS
region) and one chloroplast (trnLF) region, and also by random genome analysis by RAPD-PCR using five primers. All
chloroplast sequences obtained revealed a low level of variation between isolates although the rDNA ITS sequences displayed a
divergence of up to 25.2 %. All of 93 bands generated by the five RAPD primers were polymorphic. The average genetic distance
varied from 0 to 42. NJ based phylogenies derived from ITS and RAPD data revealed poor resolution. In summary, both analyses
indicate low variation amongst cultivars.
Addresses: [Cherdshewasart, Wichai; Chanchao, Chanpen] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand;
[Suwanvijitr, Trin; Kaewmuangmoon, Jirattikarn] Chulalongkorn Univ, Fac Sci, Program Biotechnol, Bangkok 10330, Thailand
Reprint Address: Chanchao, C, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
RMU5180042
Chulalongkorn University, Asia Research Center
TRF/BIOTEC
This research was financially supported by following grants: Thailand Research Fund, grant # RMU5180042, the Research
Program on Conservation and Utilization of Biodiversity of Chulalongkorn University, Asia Research Center, and TRF/BIOTEC
Special Program for Biodiversity Research and Training grant which is gratefully acknowledged.
Times Cited: 0
Publisher: PAKISTAN BOTANICAL SOC
Publisher Address: DEPT OF BOTANY UNIV KARACHI, 32 KARACHI, PAKISTAN
ISSN: 0556-3321
29-char Source Abbrev.: PAKISTAN J BOT
ISO Source Abbrev.: Pak. J. Bot.
Subject Category: Plant Sciences
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ISI Document Delivery No.: 566KD
Record 211 of 271
Author(s): Yutthammo, C (Yutthammo, Chontisak); Thongthammachat, N (Thongthammachat, Nudchanard); Pinphanichakarn, P
(Pinphanichakarn, Pairoh); Luepromchai, E (Luepromchai, Ekawan)
Title: Diversity and Activity of PAH-Degrading Bacteria in the Phyllosphere of Ornamental Plants
Source: MICROBIAL ECOLOGY, 59 (2): 357-368 FEB 2010
Language: English
KeyWords Plus: POLYCYCLIC AROMATIC-HYDROCARBONS; ORGANIC-COMPOUNDS; INDOOR AIR;
DEGRADATION; MICROBIOLOGY; POPULATIONS; THAILAND; FEATURES; REMOVAL; BANGKOK
Abstract: Phyllosphere bacteria on ornamental plants were characterized based on their diversity and activity towards the
removal of polycyclic aromatic hydrocarbons (PAHs), the major air pollutants in urban area. The amounts of PAH-degrading
bacteria were about 1-10% of the total heterotrophic phyllosphere populations and consisted of diverse bacterial species such as
Acinetobacter, Pseudomonas, Pseudoxanthomonas, Mycobacterium, and uncultured bacteria. Bacterial community structures
analyzed by polymerase chain reaction-denaturing gradient gel electrophoresis from each plant species showed distinct band
patterns. The uniqueness of these phyllosphere bacterial communities was partly due to the variation in leaf morphology and
chemical properties of ornamental plants. The PAH degradation activity of these bacteria was monitored in gas-tight systems
containing sterilized or unsterilized leaves. The results indicated that phyllosphere bacteria on unsterilized leaves were able to
enhance the activity of leaves for phenanthrene removal. When compared between plant species, phenanthrene removal efficiency
corresponded to the size of phenanthrene-degrading bacteria. In addition, phyllosphere bacteria on Wrightia religiosa were able to
reduce other PAHs such as acenaphthylene, acenaphthene, and fluorine in 60-ml glass vials and in a 14-l glass chamber. Thus,
phyllosphere bacteria on ornamental plants may play an important role in natural attenuation of airborne PAHs in urban areas.
Addresses: [Luepromchai, Ekawan] Chulalongkorn Univ, NCE EHWM, Bangkok 10330, Thailand; [Thongthammachat,
Nudchanard] Chulalongkorn Univ, Environm Sci Program, Grad Sch, Bangkok 10330, Thailand; [Yutthammo, Chontisak;
Pinphanichakarn, Pairoh; Luepromchai, Ekawan] Chulalongkorn Univ, Dept Microbiol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Luepromchai, E, Chulalongkorn Univ, NCE EHWM, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The authors thank Prof. Rudolf Muller, Technical University Hamburg-Harburg, Germany, for his invaluable suggestions. This
work was supported by a grant from the Thailand Research Fund (TRF) and The Commission on Higher Education. In addition,
it is partially funded by the Chulalongkorn University Graduate Thesis Grant and Research Funds from the Faculty of Science,
Times Cited: 0
Publisher: SPRINGER
ISSN: 0095-3628
DOI: 10.1007/s00248-009-9631-8
29-char Source Abbrev.: MICROBIAL ECOL
ISO Source Abbrev.: Microb. Ecol.
Subject Category: Ecology; Marine & Freshwater Biology; Microbiology
ISI Document Delivery No.: 567QP
Record 212 of 271
Author(s): Norakankorn, C (Norakankorn, Chaiwat); Pan, QM (Pan, Qinmin); Rempel, GL (Rempel, Garry L.);
Title: Factorial Experimental Design on Synthesis of Functional Core/Shell Polymeric Nanoparticles via Differential
Microemulsion Polymerization
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Source: JOURNAL OF APPLIED POLYMER SCIENCE, 116 (3): 1291-1298 MAY 5 2010
Language: English
Author Keywords: core-shell polymer; emulsion polymerization; micelles; nanolayer; particle nucleation
KeyWords Plus: POLY(METHYL METHACRYLATE) PARTICLES; METHYL-METHACRYLATE; 2,3-EPOXYPROPYL
METHACRYLATE; LATEXES
Abstract: Functionalized core/shell nanoparticles of the co-polymer of methyl methacrylate (MMA) and glycidyl methacrylate
(GMA) could be polymerized by differential microemulsion polymerization, using a small amount of surfactant (the weight ratio
of sodium dodecyl sulfate (SDS)/monomer is 1 : 24). The core/shell nanoparticles have a high conversion, high molecular weight,
and small particle size (25-30 nm). The statistical analysis indicated that SDS, water, and the interactionbetween SDS and water
have a significant positive interaction between the MMA conversion to form the core nanoparticles. For the core-shell polymer,
[GMA], [GMA]*[SDS], and [GMA]* [water] have significant negative effects on conversion; whereas [SDS] and [water],
[SDS]*[water] and [GMA]*[SDS]*[water] have positive effects on the conversion to form core/shell nanoparticles. (C) 2009
Wiley Periodicals, Inc. J Appl Polym Sci 116: 1291-1298, 2010
Addresses: [Kiatkamjornwong, Suda] Chulalongkorn Univ, Fac Sci, Dept Imaging & Printing Technol, Bangkok, Thailand;
[Norakankorn, Chaiwat] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok, Thailand; [Pan, Qinmin; Rempel, Garry L.] Univ
Waterloo, Fac Engn, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
Reprint Address: Kiatkamjornwong, S, Chulalongkorn Univ, Fac Sci, Dept Imaging & Printing Technol, Bangkok, Thailand.
Funding Agency
Grant Number
PHD/0269/2545
Natural Sciences and Engineering Research Council of Canada (NSERC)
Canada Foundation for Innovation (CFI)
Contract grant sponsor: Thailand Research Fund (TRF); contract grant number: PHD/0269/2545.
Contract grant sponsor: Natural Sciences and Engineering Research Council of Canada (NSERC) and the Canada Foundation for
Innovation (CFI).
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31493
Record 213 of 271
Author(s): Phetwarotai, W (Phetwarotai, Worasak); Potiyaraj, P (Potiyaraj, Pranut); Aht-Ong, D (Aht-Ong, Duangdao)
Title: Properties of Compatibilized Polylactide Blend Films with Gelatinized Corn and Tapioca Starches
Source: JOURNAL OF APPLIED POLYMER SCIENCE, 116 (4): 2305-2311 MAY 15 2010
Language: English
Author Keywords: biodegradable; blends; compatibility; films
KeyWords Plus: POLY(LACTIC ACID); MECHANICAL-PROPERTIES; PHYSICAL-PROPERTIES; THERMALPROPERTIES; POLYMER BLENDS; PLASTICIZATION; DIISOCYANATE
Abstract: Blend films containing two types of starch, various amounts of methylenediphenyl diisocyanate (MDI), and polylactide
were prepared. The effects of MDI level and starch type on the tensile, thermal, and morphological properties of these films were
investigated. The MDI amount was varied from 0 to 10 wt % on the basis of gelatinized starch (GS) content, whereas two types of
starch (corn and tapioca) were added as filters. In this study, the blend films were hot-mixed at 180 degrees C by an internal batch
mixer and then compression-molded to form test specimens. The results show that the addition of MDI as a compatibilizer led to
in increase in the tensile properties compared with the uncompatibilized films. Furthermore, the thermal properties indicated some
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improving interfacial adhesion between the two phases, as evidenced by the morphological results. These behaviors were
observed in the blends with both gelatinized tapioca starch and gelatinized corn starch. The different types of starch had no effect
on the glass-transition and melting-temperature Shifts, including water absorption of the blend films. On the other hand, the
mechanical properties of the blends with gelatinized corn starch were higher than those of the others. (C) 2010 Wiley Periodicals,
Inc. J Appl Polym Sci 116: 2305-2311, 2010
Addresses: [Phetwarotai, Worasak; Potiyaraj, Pranut; Aht-Ong, Duangdao] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok
10330, Thailand; [Phetwarotai, Worasak; Potiyaraj, Pranut; Aht-Ong, Duangdao] Chulalongkorn Univ, Natl Ctr Excellence Petr
Petrochem & Adv Mat, Res Unit Adv Ceram & Polymer Mat, Bangkok 10330, Thailand
Reprint Address: Aht-Ong, D, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Research Unit of Advanced Ceramic and Polymeric Materials, National Center of Excellence for Petroleum,
Petrochemicals, Advanced Materials, Chulalongkorn University
Contract grant sponsors: Research Unit of Advanced Ceramic and Polymeric Materials, National Center of Excellence for
Petroleum, Petrochemicals, Advanced Materials, Chulalongkorn University.
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31666
Record 214 of 271
Author(s): Bualuang, A (Bualuang, Aporn); Soontharapirakkul, K (Soontharapirakkul, Kanteera); Incharoensakdi, A
(Incharoensakdi, Aran)
Title: Na+/H+ exchange activity in the alkaliphile halotolerant cyanobacterium Aphanothece halophytica
Source: JOURNAL OF APPLIED PHYCOLOGY, 22 (2): 123-129 APR 2010
Language: English
Author Keywords: Na+/H+ exchange; Salt tolerance; Cyanobacteria; Aphanothece halophytica; Alkaliphile
KeyWords Plus: C-TERMINAL TAIL; PLASMA-MEMBRANE; SALT TOLERANCE; ION SPECIFICITY; ANTIPORTER;
AMILORIDE; CONTAINS; TONOPLAST; GROWTH; NACL
Abstract: The activity of Na+/H+ exchanger to remove toxic Na+ is important for growth of organisms under high salinity. In this
study, the halotolerant cyanobacterium Aphanothece halophytica was shown to possess Na+/H+ exchange activity since
exogenously added Na+ could dissipate a pre-formed pH gradient, and decrease extracellular pH. Kinetic analysis yielded
apparent K (m) (Na+) and V (max) of 20.7 +/- 3.1 mM and 3,333 +/- 370 nmol H+ min(-1) mg(-1), respectively. For cells grown
under salt-stress condition, the apparent K (m) (Na+) and V (max) was 18.3 +/- 3.5 mM and 3,703 +/- 350 nmol H+ min(-1)
mg(-1), respectively. Three cations with decreasing efficiency namely Li+, Ca2+, and K+ were also able to dissipate pH gradient.
Only marginal exchange activity was observed for Mg2+. The exchange activity was strongly inhibited by Na+-gradient
dissipators, monensin, and sodium ionophore as well as by CCCP, a protonophore. A. halophytica showed high Na+/H+ exchange
activity at neutral and alkaline pH up to pH 10. Cells grown at pH 7.6 under high salinity exhibited higher Na+/H+ exchange
activity than those grown under low salinity during 15 days of growth suggesting a role of Na+/H+ exchanger for salt tolerance in
A. halophytica. Cells grown at alkaline pH of 9.0 also exhibited a progressive increase of Na+/H+ exchange activity during 15
days of growth.
Addresses: [Bualuang, Aporn; Soontharapirakkul, Kanteera; Incharoensakdi, Aran] Chulalongkorn Univ, Fac Sci, Dept Biochem,
Lab Cyanobacterial Biotechnol, Bangkok 10330, Thailand
Reprint Address: Incharoensakdi, A, Chulalongkorn Univ, Fac Sci, Dept Biochem, Lab Cyanobacterial Biotechnol, Bangkok
10330, Thailand.
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Funding Agency
Grant Number
BRG 4880004
This work was supported by the Thailand Research Fund (BRG 4880004) to A.I. We also acknowledge the fund given to the
research group by Commission on Higher Education, Thailand (the university staff development consortium).
Times Cited: 0
Publisher: SPRINGER
ISSN: 0921-8971
DOI: 10.1007/s10811-009-9431-z
29-char Source Abbrev.: J APPL PHYCOL
ISO Source Abbrev.: J. Appl. Phycol.
Subject Category: Biotechnology & Applied Microbiology; Marine & Freshwater Biology
ISI Document Delivery No.: 568QX
Record 215 of 271
Author(s): Hamaguchi, T (Hamaguchi, Tasuku); Ito, T (Ito, Tsukasa); Inoue, Y (Inoue, Yukako); Limpaseni, T (Limpaseni,
Tipaporn); Pongsawasdi, P (Pongsawasdi, Piamsook); Ito, K (Ito, Kazuo)
Title: Purification, characterization and molecular cloning of a novel endo-beta-N-acetylglucosaminidase from the basidiomycete,
Flammulina velutipes
Source: GLYCOBIOLOGY, 20 (4): 420-432 APR 2010
Language: English
Author Keywords: asparagine-linked oligosaccharide; basidiomycetes; endo-beta-N-acetylglucosaminidases FV; Flammulina
velutipes; transglycosylation
KeyWords Plus: SODIUM DODECYL-SULFATE; AUG INITIATOR CODON; TRANSGLYCOSYLATION ACTIVITY;
ARTHROBACTER-PROTOPHORMIAE; COMPLEX OLIGOSACCHARIDES; STREPTOMYCES-GRISEUS;
ESCHERICHIA-COLI; GLYCOPROTEINS; CARBOHYDRATE; GLYCANS
Abstract: Endo-beta-N-acetylglucosaminidases are thought to be key enzymes in the catabolism of asparagine-linked
oligosaccharides. However, little is known about the enzymes of this type in basidiomycetes. We investigated endo-betaN-acetylglucosaminidases in basidiomycetes using fluorescence-labeled glycoasparagines as substrates. Flammulina velutipes
showed high activity and its enzyme was named endo-beta-N-acetylglucosaminidase FV (Endo FV). The enzyme purified from the
fruiting bodies of F. velutipes was separated into two forms. Endo FV was specific for high mannose and hybrid-type
oligosaccharides. The enzyme was remarkably less active against asparagine-linked oligosaccharides attached to glycoproteins. It
transferred an asparagine-linked oligosaccharide to Glc, but not to Gal. cDNA of Endo FV was cloned. It was composed of a
996-bp open reading frame encoding 331 amino acid residues. A recombinant Endo FV expressed in Escherichia coli showed
enzymatic activity. The Endo FV gene in the genome of F. velutipes had no introns. The gene encoding Endo FV showed little
homology with genes of known endo-beta-N-acetylglucosaminidases. A chitinase active site motif existed in the deduced primary
structure, indicating that Endo FV belongs to glycoside hydrolase family 18. The deduced amino acid sequence of Endo FV had
regions conserved in class III chitinases from fungi though it showed little homology with the sequence of any other endo-betaN-acetylglucosaminidases. A folding model of Endo FV indicated it to be homologous with the tertiary structure of Endo H which
is quite similar in specificity for asparagine-linked oligosaccharides. This study suggests that Endo FV may become similar to
Endo H in substrate specificity as a result of evolutionary convergence.
Addresses: [Hamaguchi, Tasuku; Ito, Tsukasa; Inoue, Yukako; Ito, Kazuo] Osaka City Univ, Grad Sch Sci, Dept Biol, Osaka
5588585, Japan; [Limpaseni, Tipaporn; Pongsawasdi, Piamsook] Chulalongkorn Univ, Dept Biochem, Fac Sci, Bangkok 10330,
Thailand
Reprint Address: Ito, K, Osaka City Univ, Grad Sch Sci, Dept Biol, Osaka 5588585, Japan.
Funding Agency
Grant Number
Japan Society for the Promotion of Science 21580117
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This work was supported in part by grants-in aid for Scientific Research (21580117) from the Japan Society for the Promotion
of Science, and by the Asian core program supported by the Japan Society for the Promotion of Science and the National
Research Council of Thailand.
Times Cited: 0
Publisher: OXFORD UNIV PRESS INC
Publisher Address: JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
ISSN: 0959-6658
DOI: 10.1093/glycob/cwp188
29-char Source Abbrev.: GLYCOBIOLOGY
ISO Source Abbrev.: Glycobiology
ISI Document Delivery No.: 569AJ
Record 216 of 271
Author(s): Plaza, GA (Plaza, Grazyna A.); Nalecz-Jawecki, G (Nalecz-Jawecki, Grzegorz); Pinyakong, O (Pinyakong, Onruthai);
Illmer, P (Illmer, Paul); Margesin, R (Margesin, Rosa)
Title: Ecotoxicological and microbiological characterization of soils from heavy-metal- and hydrocarbon-contaminated sites
Source: ENVIRONMENTAL MONITORING AND ASSESSMENT, 163 (1-4): 477-488 APR 2010
Language: English
Author Keywords: Soil pollution; Heavy metals; Hydrocarbons; Microbial activity; Ecotoxicity
KeyWords Plus: BIOASSAYS; QUALITY; REMEDIATION; TOXICITY; POLAND; PLANT; WATER; OIL
Abstract: The aims of this study were to characterize soils from industrial sites by combining physicochemical, microbiological,
and ecotoxicological parameters and to assess the suitability of these assays for evaluation of contaminated sites and ecological
risk assessment. The soil samples were taken from long-term contaminated sites containing high amounts of heavy metals (sites 1
and 2) or petroleum hydrocarbons (site 3) located in the upper Silesia Industrial Region in southern Poland. Due to soil
heterogeneity, large differences between all investigated parameters were measured. Microbiological properties revealed the
presence of high numbers of viable hetrotrophic microorganisms. Soil enzyme activities were considerably reduced or could not
be detected in contaminated soils. Activities involved in N turnover (N mineralization and nitrification) were significantly (P <
0.05) higher in samples from the metal-contaminated sites than in samples from the hydrocarbon-contaminated site, whereas the
opposite was observed for phosphatase activity. The Microtox test system appeared to be the most appropriate to detect toxicity
and significant differences in toxicity between the three sites. The Ostracodtoxkit test was the most appropriate test system to
detect toxicity in the hydrocarbon-contaminated soil samples. Correlation analysis between principal components (obtained from
factor analysis) determined for physicochemical, microbiological, and ecotoxicological soil properties demonstrated the impact
of total and water-extractable contents of heavy metals on toxicity.
Addresses: [Illmer, Paul; Margesin, Rosa] Innsbruck Univ, Inst Microbiol, A-6020 Innsbruck, Austria; [Plaza, Grazyna A.] Inst
Ecol Ind Areas, Dept Environm Microbiol, PL-40844 Katowice, Poland; [Nalecz-Jawecki, Grzegorz] Med Univ Warsaw, Dept
Environm Hlth Sci, PL-02097 Warsaw, Poland; [Pinyakong, Onruthai] Chulalongkorn Univ, Fac Sci, Dept Microbiol, Bangkok
10330, Thailand
Reprint Address: Margesin, R, Innsbruck Univ, Inst Microbiol, Technikerstr 25, A-6020 Innsbruck, Austria.
Funding Agency
Grant Number
Polish Ministry of Science and Higher Education
Austria/38/2006
Austrian Academic Cooperation and Mobility Unit 06/2006
Financial support from the Polish Ministry of Science and Higher Education (special project no Austria/38/2006 and Austrian
Academic Cooperation and Mobility Unit (WTZ Austria-Poland, project no 06/2006; Asea-Uninet-Network) is gratefully
acknowledged.
Times Cited: 0
Publisher: SPRINGER
23/11/2553 18:39
ISSN: 0167-6369
DOI: 10.1007/s10661-009-0851-7
29-char Source Abbrev.: ENVIRON MONIT ASSESS
ISO Source Abbrev.: Environ. Monit. Assess.
Subject Category: Environmental Sciences
ISI Document Delivery No.: 567FH
Record 217 of 271
Author(s): Rungrotmongkol, T (Rungrotmongkol, Thanyada); Udommaneethanakit, T (Udommaneethanakit, Thanyarat); Frecer, V
(Frecer, Vladimir); Miertus, S (Miertus, Stanislav)
Title: Combinatorial Design of Avian Influenza Neuraminidase Inhibitors Containing Pyrrolidine Core with a Reduced
Susceptibility to Viral Drug Resistance
Source: COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING, 13 (3): 268-277 MAR 2010
Language: English
Author Keywords: Avian influenza virus H5N1; neuraminidase inhibitors; viral drug resistance; pyrrolidine-based analogs;
computer-assisted combinatorial library design; in silico screening; target-specific scoring function
KeyWords Plus: 3-DIMENSIONAL STRUCTURE; SCORING FUNCTION; PREDICTION; VIRUS; OSELTAMIVIR;
SIMULATIONS; PROTEASE; A-315675; SOLUBILITY; COMPLEXES
Abstract: Using computer-assisted combinatorial chemistry techniques, we have designed a virtual library of anti-influenza
agents, analogs of inhibitor A-315675, containing a novel pyrrolidine core, which effectively inhibits both wild type and common
oseltamivir-resistant mutant forms of the neuraminidase (NA) subtype N1 of avian influenza virus H5N1. A target-specific
Potential of Mean Force (PMF) scoring function parameterized on a training set of 13 known pyrrolidine-based inhibitors of NA
and validated on 3 others was used to predict the N1 inhibition constants for the focused library of A-315675 analogs. Nine
virtual hits (best pyrrolidine inhibitors designed in the present study) are predicted to exhibit inhibition constants in the low
picomolar range, up to 200 fold lower than the parent inhibitor A-315675 while displaying favorable predicted ADME-related
properties. Proposed small highly-focused combinatorial subsets composed of R-groups most frequently occurring in the 200 most
active analogs can be useful as a guide for synthetic and medicinal chemists who are developing a new generation of drugs against
the avian influenza virus H5N1 by focusing their attention on this small portion of the chemical space.
Addresses: [Rungrotmongkol, Thanyada; Udommaneethanakit, Thanyarat; Frecer, Vladimir; Miertus, Stanislav] UNIDO, Int Ctr
Sci & High Technol, I-34012 Trieste, Italy; [Rungrotmongkol, Thanyada] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok
10330, Thailand; [Udommaneethanakit, Thanyarat] Chulalongkorn Univ, Grad Sch, Nanosci & Technol Program, Bangkok 10330,
Thailand; [Frecer, Vladimir] Consortium Area Sci Pk Trieste, Lab Mol Biostruct & Nanomat Modeling, I-34012 Trieste, Italy;
[Frecer, Vladimir] Slovak Acad Sci, Canc Res Inst, SK-83391 Bratislava, Slovakia
Reprint Address: Miertus, S, UNIDO, Int Ctr Sci & High Technol, AREA Sci Pk,Bldg L2,Padriciano 99, I-34012 Trieste, Italy.
Times Cited: 0
Publisher: BENTHAM SCIENCE PUBL LTD
Publisher Address: EXECUTIVE STE Y26, PO BOX 7917, SAIF ZONE, 1200 BR SHARJAH, U ARAB EMIRATES
ISSN: 1386-2073
29-char Source Abbrev.: COMB CHEM HIGH THROUGHPUT SCR
ISO Source Abbrev.: Comb. Chem. High Throughput Screen
Subject Category: Biochemical Research Methods; Chemistry, Applied; Pharmacology & Pharmacy
ISI Document Delivery No.: 568EO
Record 218 of 271
Author(s): Thummajitsakul, S (Thummajitsakul, Sirikul); Klinbunga, S (Klinbunga, Sirawut); Sittipraneed, S (Sittipraneed,
Siriporn)
Title: Development of a Species-Diagnostic Marker for Identification of the Stingless Bee Trigona pagdeni in Thailand
Source: BIOCHEMICAL GENETICS, 48 (3-4): 181-192 APR 2010
Language: English
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Author Keywords: Stingless bees; Trigona pagdeni; AFLP; SSCP; Species-specific marker
KeyWords Plus: HYMENOPTERA; APIDAE; POLLINATION
Abstract: A species-diagnostic SCAR marker for identification of the stingless bee (Trigona pagdeni Schwarz) was successfully
developed. Initially, amplified fragment length polymorphism analysis was carried out across representatives of 12 stingless bee
species using 64 primer combinations. A 284 bp band restrictively found in T. pagdeni was cloned and sequenced. A primer pair
(CUTP1-F/R) was designed and tested for species-specificity in 15 stingless bees. The expected 163 bp fragment was
successfully amplified in all examined individuals of T. pagdeni (129/129). Nevertheless, cross-species amplification was also
observed in T. fimbriata (1/3), T. collina (11/112), T. laeviceps (1/12), and T. fuscobalteata (15/15), but not in other species.
SSCP analysis of CUTP1 further differentiated T. fuscobalteata and T. collina from T. pagdeni. Although T. laeviceps, T.
fimbriata, and T. pagdeni shared an identical SSCP genotype, they are not taxonomically problematic species.
Addresses: [Thummajitsakul, Sirikul; Sittipraneed, Siriporn] Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330,
Thailand; [Klinbunga, Sirawut] Natl Sci & Dev Agcy, Natl Ctr Genet Engn & Biotechnol, Klongluang 12120, Pathumthani,
Thailand; [Klinbunga, Sirawut] Chulalongkorn Univ, Fac Sci, Ctr Excellence Marine Biotechnol, Bangkok 10330, Thailand
Reprint Address: Sittipraneed, S, Chulalongkorn Univ, Fac Sci, Dept Biochem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Research Funds (TRF) PHD/0075/2546
We thank Assoc. Prof. Dr. Deborah Smith and Prof. Dr. Charles D. Michener, University of Kansas, for their help in taxonomic
identification of specimens and critical suggestions for the early version of the manuscript. We would also like to acknowledge
the Center of Excellence for Marine Biotechnology and the Bee Research Unit, Faculty of Science, Chulalongkorn University,
for providing facilities required by the experiments. A student grant (S. Thummajitsakul) was supported by the Royal Golden
Jubilee PhD program (Grant No. PHD/0075/2546), the Thailand Research Funds (TRF).
Times Cited: 1
ISSN: 0006-2928
DOI: 10.1007/s10528-009-9300-0
29-char Source Abbrev.: BIOCHEM GENET
ISO Source Abbrev.: Biochem. Genet.
ISI Document Delivery No.: 567PR
Record 219 of 271
Author(s): Punthasee, P (Punthasee, Puminun); Vanitcha, A (Vanitcha, Avassaya); Wacharasindhu, S (Wacharasindhu, Sumrit)
Title: Mukaiyama's reagent promoted C-N bond formation: a new method to synthesize 3-alkylquinazolin-4-ones
Source: TETRAHEDRON LETTERS, 51 (13): 1713-1716 MAR 31 2010
Language: English
KeyWords Plus: FACTOR RECEPTOR EGFR; IRREVERSIBLE INHIBITORS; SNAR REACTIONS; DERIVATIVES;
CHEMISTRY; ECHINOZOLINONE; QUINAZOLINONES; AMIDES; UREAS; ACIDS
Abstract: A new approach to synthesize 3-alkylquinazolin-4-ones is developed. Treatment of quinazolin-4-ones with
Mukaiyama's reagent, a base and a primary amine nucleophile results in the formation of 3-alkylquinazolin-4-ones in moderate to
good yields under mild conditions. Using this methodology, a one-step synthesis of the natural alkaloid, echinozolinone, is
accomplished. (C) 2010 Elsevier Ltd. All rights reserved.
Addresses: [Punthasee, Puminun; Vanitcha, Avassaya; Wacharasindhu, Sumrit] Chulalongkorn Univ, Fac Sci, Dept Chem, Organ
Synth Res Unit, Bangkok 10330, Thailand
Reprint Address: Wacharasindhu, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok 10330, Thailand.
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Funding Agency
Grant Number
Ratchadaphiseksomphot Endowment Fund, Chulalongkorn University
DIG-5180020
RES A1 B1-6
The faculty of Science (RES A1 B1-6) and Ratchadaphiseksomphot Endowment Fund, Chulalongkorn University and the
Thailand Research Fund (DIG-5180020) are gratefully acknowledged for financial Support. We are grateful to Dr. Polkit
Sangvanich, Chemistry Department, Chulalongkorn University for HRMS measurements.
Times Cited: 0
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2010.01.087
29-char Source Abbrev.: TETRAHEDRON LETT
ISO Source Abbrev.: Tetrahedron Lett.
ISI Document Delivery No.: 565LB
Record 220 of 271
Author(s): Sriring, N (Sriring, Noparat); Tantavichet, N (Tantavichet, Nisit); Pruksathorn, K (Pruksathorn, Kejvalee)
Title: Preparation of Pt/C catalysts by electroless deposition for proton exchange membrane fuel cells
Source: KOREAN JOURNAL OF CHEMICAL ENGINEERING, 27 (2): 439-445 MAR 2010
Language: English
Author Keywords: Electroless Deposition; Catalyst; Platinum; Formaldehyde; PEMFC
KeyWords Plus: ALLOY CATALYSTS; OXYGEN; ELECTROCATALYSTS; REDUCTION; CATHODE
Abstract: The aim of this research is to study the effect of different preparation conditions for making carbon supported platinum
catalysts by electroless deposition on the properties and performance of proton exchange membrane fuel cells (PEMFC). The
studied parameters are platinum and formaldehyde concentrations, deposition time and the method of formaldehyde addition. By a
univariate approach, the optimal preparation conditions of 20 wt% Pt/C catalyst are determined as using 10 g Pt l(-1), two hours
of deposition time and seven equally spaced additions of 0.15 M formaldehyde. SEM and TEM results indicate that the Pt/C
catalyst attained has a small particle size (2-4 nm) and a good dispersion. The efficiency of the activation polarization of
membrane electrode assembly (MEA) using these prepared catalysts is nearly that of commercial electrodes, but they have a
significantly higher ohmic loss.
Addresses: [Sriring, Noparat; Tantavichet, Nisit; Pruksathorn, Kejvalee] Chulalongkorn Univ, Fuels Res Ctr, Dept Chem Technol,
Fac Sci, Bangkok 10330, Thailand; [Tantavichet, Nisit; Pruksathorn, Kejvalee] Chulalongkorn Univ, Ctr Excellence Petr
Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Pruksathorn, K, Chulalongkorn Univ, Fuels Res Ctr, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The authors would like to express their deep gratitude to the Center of Excellence for Petroleum, Petrochemicals and Advanced
Materials, the Office of the National Research Council of Thailand (NRCT), and the Graduate School of Chulalongkorn
University for financial support.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0256-1115
DOI: 10.1007/s11814-010-0088-8
23/11/2553 18:39
ISI Document Delivery No.: 564MG
Record 221 of 271
Author(s): Termwuttipong, I (Termwuttipong, Imchit); Kaewtem, T (Kaewtem, Thanatkrit)
Title: Fixed Point Theorem of Half-Continuous Mappings on Topological Vector Spaces
Source: FIXED POINT THEORY AND APPLICATIONS: Art. No. 814970 2010
Language: English
Abstract: Some fixed point theorems of half-continuous mappings which are possibly discontinuous defined on topological vector
spaces are presented. The results generalize the work of Philippe Bich (2006) and several well-known results.
Addresses: [Termwuttipong, Imchit; Kaewtem, Thanatkrit] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand
Reprint Address: Termwuttipong, I, Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Mahidol Wittayanusorn School
The second author is financially supported by Mahidol Wittayanusorn School. This work is dedicated to Professor Wataru
Takahashi on his retirement.
Times Cited: 0
Publisher: HINDAWI PUBLISHING CORPORATION
Publisher Address: 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
ISSN: 1687-1820
DOI: 10.1155/2010/814970
29-char Source Abbrev.: FIXED POINT THEORY APPL
ISO Source Abbrev.: Fixed Point Theory Appl.
Subject Category: Mathematics, Applied; Mathematics
ISI Document Delivery No.: 562TI
Record 222 of 271
Author(s): Angkanasiriporn, S (Angkanasiriporn, Siriporn); Singsung, W (Singsung, Wuttipong); Petsom, A (Petsom, Amorn);
Nhujak, T (Nhujak, Thumnoon)
Title: Comparison and prediction of the retention in micellar electrokinetic chromatography and microemulsion electrokinetic
chromatography for disubstituted benzenes
Source: ELECTROPHORESIS, 31 (4): 695-701 FEB 2010
Language: English
Author Keywords: CE; Disubstituted benzenes; EKC; Retention; Separation
KeyWords Plus: EMPLOYING SUPPRESSED ELECTROOSMOSIS; WATER PARTITION-COEFFICIENTS; CAPILLARY
CHROMATOGRAPHY; RAPID-DETERMINATION; SEPARATION; SELECTIVITY; INDEX; EKC; OPTIMIZATION;
SURFACTANTS
Abstract: Retention index (I) rather than retention factor (k), was found to be a more reasonable parameter for comparison of the
relative affinity of disubstituted benzenes in MEEKC and MEKC, due to independent of I with the SDS surfactant concentration.
MEKC and MEEKC may give similar or different I values, depending on types of moieties. With known I and K-ow for
alkylbenzenes as references in MEKC and MEEKC, the values of K-ow for disubstituted benzenes can be estimated from the
observed I values, where K-ow is the octanol-water distribution constant. In addition, a group additive approach can be used to
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predict I for disubstituted benzenes with different moieties from the average observed I for the disubstituted benzenes with same
moieties. However, electronic effects and/or intramolecular interaction may result in the different observed I from prediction.
Addresses: [Angkanasiriporn, Siriporn; Singsung, Wuttipong; Petsom, Amorn; Nhujak, Thumnoon] Chulalongkorn Univ,
Chromatog & Separat Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Nhujak, T, Chulalongkorn Univ, Chromatog & Separat Res Unit, Dept Chem, Fac Sci, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
Chulalongkorn University (CU) Fund
Ratchaphisak Somphot Endowment Fund
RMU5080054
Center for Petroleum
Petrochemicals and Advanced Materials
CU
The authors gratefully thank the 90th Anniversary of Chulalongkorn University (CU) Fund, the Ratchaphisak
Somphot Endowment Fund, and the Thailand Research Fund (RMU5080054) for financial support, and the Center for Petroleum,
Petrochemicals and Advanced Materials, CU, for partial support.
Times Cited: 0
ISSN: 0173-0835
DOI: 10.1002/elps.200900486
29-char Source Abbrev.: ELECTROPHORESIS
ISO Source Abbrev.: Electrophoresis
Subject Category: Biochemical Research Methods; Chemistry, Analytical
ISI Document Delivery No.: 564TF
Record 223 of 271
Author(s): Saengsawang, O (Saengsawang, O.); Schuring, A (Schuering, A.); Remsungnen, T (Remsungnen, T.); Hannongbua, S
(Hannongbua, S.); Newsome, DA (Newsome, D. A.); Dammers, AJ (Dammers, A. J.); Coppens, MO (Coppens, M. O.); Fritzsche,
S (Fritzsche, S.)
Title: Diffusion of n-pentane in the zeolite ZK5 studied by high-temperature configuration-space exploration
Source: CHEMICAL PHYSICS, 368 (3): 121-125 MAR 11 2010
Language: English
Author Keywords: HTCE; ZK5; Self-diffusion constant; MD simulation
KeyWords Plus: MOLECULAR-DYNAMICS; ROTATIONAL MOTION; ALKANES; NMR
Abstract: The extremely slow diffusion of the molecule n-pentane caused by the hopping from cage-to-cage in zeolite ZK5 has
been investigated by transition state theory (TST). Such slow diffusion cannot be accessed by usual molecular dynamics
simulation techniques. The calculation of the partition function ratio needed for TST was enabled by a recently developed method,
the so-called high-temperature configuration-space exploration (HTCE). Dynamical corrections for recrossing events have also
been taken into account. The obtained intra-zeolite self-diffusion constant between 247 and 317 K of 10(-16)-10(-15) m(2) s(-1)
falls in the range of 10(-18)-10(-15) m(2) s(-1) observed experimentally. The calculated energetic barrier between two
neighboring cages of 29 kJ mol(-1) is in good agreement with that of 28 +/- 5 kJ mol(-1) obtained from NMR measurement. (C)
2010 Elsevier B. V. All rights reserved.
Addresses: [Saengsawang, O.; Schuering, A.; Fritzsche, S.] Univ Leipzig, Inst Theoret Phys, D-04103 Leipzig, Germany;
[Remsungnen, T.] Khon Kaen Univ, Dept Math, AMRG, Khon Kaen, Thailand; [Hannongbua, S.] Chulalongkorn Univ, Fac Sci,
Dept Chem, CCUC, Bangkok 10330, Thailand; [Hannongbua, S.] Chulalongkorn Univ, Ctr Excellence Petr Petrochem & Adv Mat,
Bangkok 10330, Thailand; [Newsome, D. A.; Dammers, A. J.] Delft Univ Technol, DelftChemTech, Delft, Netherlands; [Coppens,
M. O.] Rensselaer Polytech Inst, Howard P Isermann Dept Chem & Biol Engn, Troy, NY 12180 USA
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Reprint Address: Fritzsche, S, Univ Leipzig, Inst Theoret Phys, Vor Hosp Tore 1, D-04103 Leipzig, Germany.
Funding Agency
Grant Number
Deutsche Forschungsgemeinschaft
SPP
1155
O.S. would like to thank Dr. P. C. M. M. Magusin for valuable discussion. Financial support by the Deutsche
Forschungsgemeinschaft given in the framework of the IRTG "Diffusion in Porous Materials" (O.S.) and the SPP 1155 (A. S.
and A.J.D.) is gratefully acknowledged.
Times Cited: 0
ISSN: 0301-0104
DOI: 10.1016/j.chemphys.2010.01.010
29-char Source Abbrev.: CHEM PHYS
ISO Source Abbrev.: Chem. Phys.
ISI Document Delivery No.: 564NJ
Record 224 of 271
Author(s): Klaykruayat, B (Klaykruayat, Benjamas); Siralertmukul, K (Siralertmukul, Krisana); Srikulkit, K (Srikulkit, Kawee)
Title: Chemical modification of chitosan with cationic hyperbranched dendritic polyamidoamine and its antimicrobial activity on
cotton fabric
Source: CARBOHYDRATE POLYMERS, 80 (1): 197-207 MAR 25 2010
Language: English
Author Keywords: Cationic hyperbranched polyamidoamine; Modification of chitosan; Antimicrobial activity; S. aureus; Cotton
fabric
KeyWords Plus: DENDRIMERS; WATER; POLYMER
Abstract: The cationic hyperbranched dendritic polyamidoamine (PAMAM) containing terminal methyl ester end groups was
synthesized and then employed for modifying flake chitosan. The synthesis was achieved using repetitive reactions between
Michael addition and amidation to obtain the methyl ester group terminated hyperbranched PAMAM, and then the methyl ester
terminated hyperbranched dendritic PAMAM (PAMAM-ester) was methylated with dimethyl sulphate. The Subsequent
modification of chitosan with the cationic hyperbranched PAMAM-ester was carried out at room temperature for 5 days. As a
result, cationic hyperbranched PAMAM modified chitosan was achieved. Characterizations by elemental analysis, FT-IR, NMR,
TGA and XRD were employed to investigate the structural changes of chitosan to confirm its configuration. The cationic
hyperbranched PAMAM-chitosan was applied onto cotton fabric at 1 wt.% add-on using a padding method and was found to have
a good antimicrobial performance against Staphylococcus aureus compared to that obtained with unmodified chitosan. (C) 2009
Addresses: [Klaykruayat, Benjamas; Srikulkit, Kawee] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand;
[Siralertmukul, Krisana] Chulalongkorn Univ, Met & Mat Sci Res Inst, Bangkok 10330, Thailand; [Srikulkit, Kawee] Natl Ctr
Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Funding Agency
Grant Number
The authors thank Thailand Research Fund and the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot
Endowment Fund) for financial Support. In addition, Dr. Robert Butcher (PCU, Faculty of Science, Chulalongkorn University)
for English corrections and suggestions.
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Times Cited: 0
ISSN: 0144-8617
DOI: 10.1016/j.carbpol.2009.11.013
ISI Document Delivery No.: 562UN
Record 225 of 271
Author(s): Vilaivan, T (Vilaivan, Tirayut); Bhanthumnavin, W (Bhanthumnavin, Worawan)
Title: Organocatalyzed Asymmetric alpha-Oxidation, alpha-Aminoxylation and alpha-Amination of Carbonyl Compounds
Source: MOLECULES, 15 (2): 917-958 FEB 2010
Language: English
Author Keywords: organocatalyst; chiral catalyst; alpha-oxidation; alpha-amination; alpha-aminoxylation; nitrosoaldol reaction;
aldehyde; ketone; active methylene compound
KeyWords Plus: WADSWORTH-EMMONS OLEFINATION; BETA-KETO-ESTERS; NITROSO ALDOL/MICHAEL
REACTION; PROLINE-MEDIATED REACTIONS; BOND-FORMING REACTIONS; ONE-POT SYNTHESIS;
ENANTIOSELECTIVE SYNTHESIS; AMINO-ALCOHOLS; ALPHA,BETA-UNSATURATED ALDEHYDES;
1,3-DICARBONYL COMPOUNDS
Abstract: Organocatalytic asymmetric alpha-oxidation and amination reactions of carbonyl compounds are highly useful synthetic
methodologies, especially in generating chiral building blocks that previously have not been easily accessible by traditional
methods. The concept is relatively new and therefore the list of new catalysts, oxidizing and aminating reagents, as well as new
substrates, are expanding at an amazing rate. The scope of this review includes new reactions and catalysts, mechanistic aspects
and synthetic applications of alpha-oxidation, hydroxylation, aminoxylation, amination, hydrazination, hydroxyamination and
related alpha-heteroatom functionalization of aldehydes, ketones and related active methylene compounds published during
2005-2009.
Addresses: [Vilaivan, Tirayut; Bhanthumnavin, Worawan] Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit,
Reprint Address: Vilaivan, T, Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Phayathai Rd, Bangkok 10330,
Thailand.
Times Cited: 1
Publisher: MOLECULAR DIVERSITY PRESERVATION INTERNATIONAL-MDPI
Publisher Address: KANDERERSTRASSE 25, CH-4057 BASEL, SWITZERLAND
ISSN: 1420-3049
DOI: 10.3390/molecules15020917
29-char Source Abbrev.: MOLECULES
ISO Source Abbrev.: Molecules
ISI Document Delivery No.: 560UQ
Record 226 of 271
Author(s): Pudhom, K (Pudhom, Khanitha); Sommit, D (Sommit, Damrong); Nuclear, P (Nuclear, Paulwatt); Ngamrojanavanich,
N (Ngamrojanavanich, Nattaya); Petsom, A (Petsom, Amorn)
Title: Moluccensins H-J, 30-Ketophragmalin Limonoids from Xylocarpus moluccensis
Source: JOURNAL OF NATURAL PRODUCTS, 73 (2): 263-266 FEB 2010
Language: English
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KeyWords Plus: PHRAGMALIN-TYPE LIMONOIDS; CHINESE MANGROVE; GRANATUM; CHEMOSENSITIVITY;
MELIACEAE; ASSAY
Abstract: Three new phragmalin limonoids, moluccensins H-J (1-3), were isolated from Seed kernels of the cedar mangrove,
Xylocarpus moluccensis. Their structures were established by extensive spectroscopic analysis. Compound 2 displayed weak
antibacterial activity against Staphylococcus hominis and Enterococcus faecalis.
Addresses: [Pudhom, Khanitha; Ngamrojanavanich, Nattaya; Petsom, Amorn] Chulalongkorn Univ, Res Ctr Bioorgan Chem, Dept
Chem, Fac Sci, Bangkok 10330, Thailand; [Pudhom, Khanitha; Ngamrojanavanich, Nattaya; Petsom, Amorn] Chulalongkorn Univ,
Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Sommit, Damrong] Mahanakorn Univ Technol, Dept Chem, Fac Sci,
Bangkok 10530, Thailand; [Nuclear, Paulwatt] Rajamangala Univ Technol, Program Biol, Fac Sci & Technol, Bangkok 10120,
Thailand
Funding Agency
Grant Number
Thailand Research Fund MRG4980028
This work was supported by the Thailand Research Fund (MRG4980028). We thank Miss S. Chokpaiboon and Miss P.
Pompeng of the Program in Biotechnology, Facility of Science. Chulalongkorn University, for cytotoxic and antibacterial assays.
Times Cited: 1
ISSN: 0163-3864
DOI: 10.1021/np900583h
ISI Document Delivery No.: 559EB
Record 227 of 271
Author(s): Boonserm, P (Boonserm, Petarpa); Visser, M (Visser, Matt)
Title: Reformulating the Schrodinger equation as a Shabat-Zakharov system
Source: JOURNAL OF MATHEMATICAL PHYSICS, 51 (2): Art. No. 022105 FEB 2010
Language: English
KeyWords Plus: FUNCTIONAL DETERMINANTS; INTEGRATION; MECHANICS; MASS
Abstract: We reformulate the second-order Schrodinger equation as a set of two coupled first-order differential equations, a
so-called "Shabat-Zakharov system" (some-times called a "Zakharov-Shabat" system). There is considerable flexibility in this
approach, and we emphasize the utility of introducing an "auxiliary condition" or "gauge condition" that is used to cut down the
degrees of freedom. Using this formalism, we derive the explicit (but formal) general solution to the Schrodinger equation. The
general solution depends on three arbitrarily chosen functions, and a path-ordered exponential matrix. If one considers path
ordering to be an "elementary" process, then this represents complete quadrature, albeit formal, of the second-order linear
ordinary differential equation. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3282847]
Addresses: [Boonserm, Petarpa] Chulalongkorn Univ, Fac Sci, Dept Math, Bangkok 10330, Thailand; [Visser, Matt] Victoria
Univ Wellington, Sch Math Stat & Operat Res, Wellington 6140, New Zealand
Reprint Address: Boonserm, P, Chulalongkorn Univ, Fac Sci, Dept Math, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Marsden Fund
Royal Government of Thailand
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This research was supported by the Marsden Fund administered by the Royal Society of New Zealand. P. B. was additionally
supported by a scholarship from the Royal Government of Thailand.
Times Cited: 0
Publisher: AMER INST PHYSICS
Publisher Address: CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY
11747-4501 USA
ISSN: 0022-2488
DOI: 10.1063/1.3282847
29-char Source Abbrev.: J MATH PHYS-NY
ISO Source Abbrev.: J. Math. Phys.
Subject Category: Physics, Mathematical
ISI Document Delivery No.: 562EJ
Record 228 of 271
Author(s): Prasertsung, I (Prasertsung, Isarawut); Mongkolnavin, R (Mongkolnavin, Rattachat); Kanokpanont, S (Kanokpanont,
Sorada); Damrongsakkul, S (Damrongsakkul, Siriporn)
Title: The effects of pulsed inductively coupled plasma (PICP) on physical properties and biocompatibility of crosslinked gelatin
films
Source: INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 46 (1): 72-78 JAN 1 2010
Language: English
Author Keywords: Pulsed inductively coupled plasma; Surface modification; Plasma treatment; Gelatin; Surface energy
KeyWords Plus: SURFACE CHARACTERIZATION; SCAFFOLDS; ADHESION; FABRICATION; ACID
Abstract: In this work, pulsed inductively coupled plasma (PICP) device is introduced to treat crosslinked gelatin film. The
effects of plasma on the properties of gelatin film were investigated. Type A gelatin film crosslinked by dehydrothermal process
was treated by PICP. The properties of crosslinked gelatin were characterized by differential scanning calorimetry (DSC), amino
acid content assay (TNBS), contact angle measurement and atomic force microscopy (AFM). The results showed that pulsed
inductively coupled plasma did not significantly affect the thermal behavior and the degree of crosslinking of crosslinked gelatin
film. The contact angle by both water and ethylene glycol of crosslinked gelatin films treated with nitrogen plasma was decreased
in comparison with untreated film. The surface energy was slightly increased when increasing number of repeated discharges
were applied from 1 to 20 times. This implied that nitrogen plasma could improve hydrophilicity of the crosslinked gelatin
surface. The result from AFM revealed that surface roughness of crosslinked gelatin film was introduced when PICP treatment
was applied. In vitro test using L929 mouse fibroblast revealed that, the number of cells proliferated on PICP-treated samples
was higher than that on untreated samples. The results indicated that PICP is a potential method for crosslinked gelatin surface
modification for future tissue engineering applications. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Prasertsung, Isarawut; Kanokpanont, Sorada; Damrongsakkul, Siriporn] Chulalongkorn Univ, Fac Engn, Dept Chem
Engn, Bangkok 10330, Thailand; [Mongkolnavin, Rattachat] Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok 10330, Thailand;
[Prasertsung, Isarawut; Mongkolnavin, Rattachat; Damrongsakkul, Siriporn] Chulalongkorn Univ, Plasma Technol & Fus Energy
Res Unit, Bangkok 10330, Thailand
Reprint Address: Damrongsakkul, S, Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The authors appreciate useful advice and discussion from Prof. C.S. Wong and the utilization of cell culture facility through
Assist. Prof. T. Bunaprasert, MD, at i-Tissue Laboratory, Faculty of Medicine, Chulalongkorn University. The financial supports
from the Royal Golden Jubilee Ph.D. Program, Thailand Research Fund and Chulalongkorn University through the
Ratchadaphiseksomphot Endowment Fund are acknowledged. The use of PICP device supported by Asian African Association
for Plasma Training (AAAPT) is also acknowledged.
Times Cited: 2
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ISSN: 0141-8130
DOI: 10.1016/j.ijbiomac.2009.11.001
29-char Source Abbrev.: INT J BIOL MACROMOL
ISO Source Abbrev.: Int. J. Biol. Macromol.
ISI Document Delivery No.: 561JJ
Record 229 of 271
Author(s): Rimphanitchayakit, V (Rimphanitchayakit, Vichien); Tassanakajon, A (Tassanakajon, Anchalee)
Title: Structure and function of invertebrate Kazal-type serine proteinase inhibitors
Source: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY, 34 (4): 377-386 APR 2010
Language: English
Author Keywords: Serine proteinase inhibitor; Serine proteinase; Kazal domain; invertebrate
KeyWords Plus: CENCHRITIS-MURICATUS MOLLUSCA; LEECH HIRUDO-MEDICINALIS; SHRIMP PENAEUSMONODON; MAST-CELL TRYPTASE; THROMBIN INHIBITOR; TRYPSIN-INHIBITOR; MOLECULAR-CLONING;
PEPTIDASE INHIBITOR; PROTEASE INHIBITOR; MACROBRACHIUM-ROSENBERGII
Abstract: Proteinases and proteinase inhibitors are involved in several biological and physiological processes in all
multicellular organisms. The proteinase inhibitors function as modulators for controlling the extent of deleterious proteinase
activity. The Kazal-type proteinase inhibitors (KPIs) in family 11 are among the well-known families of proteinase inhibitors,
widely found in mammals, avian and a variety of invertebrates. Like those classical KPIs, the invertebrate KPIs can be single or
multiple domain proteins containing one or more Kazal inhibitory domains linked together by peptide spacers of variable length.
All invertebrate Kazal domains of about 40-60 amino acids in length share a common structure which is dictated by six conserved
cysteine residues forming three intra-domain disulfide cross-links despite the variability of amino acid sequences between the
half-cystines. Invertebrate KPIs are strong inhibitors as shown by their extremely high association constant of 10(7)-10(13) M-1.
The inhibitory specificity of a Kazal domain varies widely with a different reactive P-1 amino acid. Different invertebrate KPI
domains may arise from gene duplication but several KPI proteins can also be derived from alternative splicing. The invertebrate
KPIs function as anticoagulants in blood-sucking animals such as leech, mosquitoes and ticks. Several KPIs are likely involved in
protecting host from microbial proteinases while some from the parasitic protozoa help protecting the parasites from the host
digestive proteinase enzymes. Silk moths produce KPIs to protect their cocoon from predators and microbial destruction. (C)
Addresses: [Rimphanitchayakit, Vichien; Tassanakajon, Anchalee] Chulalongkorn Univ, Fac Sci, Dept Biochem, Ctr Excellence
Mol Biol & Genom Shrimp, Bangkok 10330, Thailand
Reprint Address: Rimphanitchayakit, V, Chulalongkorn Univ, Fac Sci, Dept Biochem, Ctr Excellence Mol Biol & Genom
Shrimp, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Commission on Higher Education, Ministry of Education
Chulalongkorn University through the Ratchadaphisek Somphot Endowment to the Center of Excellence for
Molecular Biology and Genomics of Shrimp
This work was supported by a grant from the Commission on Higher Education, Ministry of Education. The authors also
appreciate the support given by Chulalongkorn University through the Ratchadaphisek Somphot Endowment to the Center of
Excellence for Molecular Biology and Genomics of Shrimp.
Times Cited: 2
ISSN: 0145-305X
DOI: 10.1016/j.dci.2009.12.004
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ISI Document Delivery No.: 561OS
Record 230 of 271
Author(s): Apilux, A (Apilux, Amara); Dungchai, W (Dungchai, Wijitar); Siangproh, W (Siangproh, Weena); Praphairaksit, N
(Praphairaksit, Narong); Henry, CS (Henry, Charles S.); Chailapakul, O (Chailapakul, Orawon)
Title: Lab-on-Paper with Dual Electrochemical/Colorimetric Detection for Simultaneous Determination of Gold and Iron
Source: ANALYTICAL CHEMISTRY, 82 (5): 1727-1732 MAR 1 2010
Language: English
KeyWords Plus: CARBON-PASTE ELECTRODE; ATOMIC-ABSORPTION-SPECTROMETRY; PLATINUM-GROUP
ELEMENTS; STRIPPING VOLTAMMETRY; EMISSION-SPECTROMETRY; GEOLOGICAL SAMPLES; TRACE AMOUNTS;
ICP-MS; GOLD(III); BIOASSAYS
Abstract: A novel lab-on-paper device combining electrochemical and colorimetric detection for the rapid screening of Au(III) in
the presence of it common interference, Fe(III), in industrial waste solutions is presented here. With dilute aqua regia (0.1 M HCl
+ 0.05 M HNO3) as the supporting electrolyte, square wave voltammetry on paper provided it well-defined reduction peak for
Au(III) at similar to 287 +/- 12 mV vs Ag/AgCl. Under the optimized working conditions, the calibration curve showed good
linearity in the concentration range of 1-200 ppm of Au(III) with a correlation coefficient of 0.997. The limit of detection (LOD)
of the proposed method is 1 ppm. Interferences from various cations were also studied. Fe(III) is the only metal that affects the
electrochemical determination of Au(III) when present above it 2.5-fold excess concentration of that of the Au(III). To overcome
this limitation, a colorimetric method was used to simultaneously detect Fe(III) its it screening tool. The procedure was then
successfully applied to determine Au(III) in gold-refining waste solutions. The results are in agreement with those obtained from
inductively coupled plasma-atomic emission spectrometry (ICP-AES).
Addresses: [Apilux, Amara; Dungchai, Wijitar; Praphairaksit, Narong; Chailapakul, Orawon] Chulalongkorn Univ, Fac Sci, Dept
Chem, Sensor Res Unit, Bangkok 10330, Thailand; [Siangproh, Weena] Srinakharinwirot Univ, Fac Sci, Dept Chem, Bangkok
10110, Thailand; [Henry, Charles S.] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA; [Chailapakul, Orawon]
Reprint Address: Chailapakul, O, Chulalongkorn Univ, Fac Sci, Dept Chem, Sensor Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
PHD/0256/2549
Ratchadphiseksomphot Endowment Fund, Chulalongkorn University PCU136.2009
Thailand-United States Education Foundation
A.A. gratefully acknowledges financial support from the Thailand Research Fund, through the Royal Golden Jubilee Ph.D.
Program (Grant No. PHD/0256/2549). O.C. greatly thanks the Thailand Research Fund (Basic Research Grant), the
Ratchadphiseksomphot Endowment Fund, Chulalongkorn University and PCU136.2009. C.S.H. would like to acknowledge
support from the Thailand-United States Education Foundation for Fulbright Funding for support,
Times Cited: 2
ISSN: 0003-2700
DOI: 10.1021/ac9022555
29-char Source Abbrev.: ANAL CHEM
ISO Source Abbrev.: Anal. Chem.
ISI Document Delivery No.: 559QN
Record 231 of 271
Author(s): Likhitrakarn, N (Likhitrakarn, Natdanai); Golovatch, SI (Golovatch, Sergei I.); Panha, S (Panha, Somsak)
23/11/2553 18:39
Title: The millipede genus Orthomorpha Bollman, 1893 in Thailand. 1. Revision of the sericata-group, with descriptions of four
new species (Diplopoda, Polydesmida, Paradoxosomatidae)
Source: ZOOTAXA, (2361): 23-45 FEB 17 2010
Language: English
Author Keywords: millipede; taxonomy; new species; Thailand; Malaysia
Abstract: The sericata-group of Orthomorpha is revised and shown to comprise six species, five of which have been collected
only in Thailand, including O. enghoffi sp. n., O. alutaria sp. n., O. parasericata sp. n. and O. asticta sp. n. Both O. sericata Jeekel,
1964 and O. subsericata Golovatch, 1997 are redescribed and illustrated, in part based on type material. A key is provided to all
of the species in the group, and their distributions are mapped.
Addresses: [Golovatch, Sergei I.] Russian Acad Sci, Inst Problems Ecol & Evolut, Moscow 119071, Russia; [Likhitrakarn,
Natdanai; Panha, Somsak] Chulalongkorn Univ, Fac Sci, Dept Biol, Anim Systemat Res Unit, Bangkok 10330, Thailand
Reprint Address: Likhitrakarn, N, Russian Acad Sci, Inst Problems Ecol & Evolut, Leninsky Pr 33, Moscow 119071, Russia.
Funding Agency
Grant Number
Office of the Higher Education Commission
CHE-RG
BRT Programme (TRF/BIOTECH Thailand Biodiversity Research and Training Programme)
We would like to extend our deep gratitude to all collectors, mainly staff of the Animal Systematics Research Unit of the
Chulalongkorn University, Bangkok, who have entrusted us their material for study. Henrik Enghoff (ZMUC) has kindly sent us
some type specimens for revision. The first author is deeply obliged to the programme Strategic Scholarships for Frontier
Research Network for the Joint Ph. D. Programme Thai Doctoral degree from the Office of the Higher Education Commission,
CHE-RG under the Limestone Biodiversity Project and the BRT Programme (TRF/BIOTECH Thailand Biodiversity Research
and Training Programme) for their financial support.
Times Cited: 0
ISSN: 1175-5326
ISI Document Delivery No.: 557AU
Record 232 of 271
Author(s): Nunthaboot, N (Nunthaboot, Nadtanet); Tanaka, F (Tanaka, Fumio); Kokpol, S (Kokpol, Sirirat)
Title: Simultaneous analysis of photoinduced electron transfer in wild type and mutated AppAs
Source: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 209 (1): 79-87 JAN 1 2010
Language: English
Author Keywords: Photoinduced electron transfer; Fluorescence dynamics; Flavin photoreceptor; BLUF; AppA; Mutated AppA;
Kakitani and Mataga electron transfer theory
KeyWords Plus: PICOSECOND LASER PHOTOLYSIS; FMN-BINDING-PROTEIN; ULTRAFAST FLUORESCENCE
DYNAMICS; CHARGE RECOMBINATION REACTIONS; INDUCED STRUCTURAL-CHANGES; BLUE-LIGHT
PHOTORECEPTOR; ENERGY-GAP LAWS; RHODOBACTER-SPHAEROIDES; MOLECULAR-DYNAMICS;
THERMOSYNECHOCOCCUS-ELONGATUS
Abstract: Photoinduced electron transfer (PET) from Tyr21 to isoalloxazine (Iso) in the excited state (Iso*) is considered to be an
initial step of the photosensing function of the blue-light sensing using flavin adenine dinucleotide (BLUF) component of the
anti-repressor of the photosynthetic regulation (AppA). The PET mechanism was investigated via fluorescence dynamics of AppA
and Kakitani and Mataga (KM) theories as well as by molecular dynamic (MD) simulation. The local structures of both the Y21F
and W104F mutant AppAs around the Iso, binding sites were quite different from those of the wild type (WT) AppA. The
distances between Iso and Trpl 04 in Y21 F, and between Iso and Tyr21 in W104F were shorter by 0.06 rim and 0.02 run,
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respectively, compared to the WT. The frequency factor, v(0), in Tyr21 was 1.15-fold greater than that in Trp104. The critical
distance between adiabatic and non-adiabatic PET processes, R-0, was found to be very long in the AppA Tyr21. The large
values of v(0) and R-0 for Tyr21 of AppA compared to those in a non photosensing flavoprotein, FMN binding protein (FBP),
were elucidated by hydrogen bond (H bond) chain between Tyr21 and Iso through Gln63. Interaction energies among Iso*,
Trp104, Tyr21 and Gln63 in WT were calculated using the semi-empirical PM3 method. The amount of the transferred charge
from Trp104 to Iso* in the WT exhibited a maximum at an interaction energy of around -20 kcal/mol, but decreased as the
interaction energy (absolute value) increased. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Nunthaboot, Nadtanet; Tanaka, Fumio] Mahasarakham Univ, Fac Sci, Dept Chem, Maha Sarakham 44150, Thailand;
[Kokpol, Sirirat] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Reprint Address: Tanaka, F, Mahasarakham Univ, Fac Sci, Dept Chem, Maha Sarakham 44150, Thailand.
Funding Agency
Grant Number
Mahasarakham University
This work was supported by the annual government statement of expenditure of Mahasarakham University (fiscal year 2010).
We would like to acknowledge the Computational Chemistry Unit Cell, Chulalongkorn University, for use of the computing
facilities. The Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials, Chulalongkorn University, is
acknowledged.
Times Cited: 0
ISSN: 1010-6030
DOI: 10.1016/j.jphotochem.2009.10.013
29-char Source Abbrev.: J PHOTOCHEM PHOTOBIOL A-CHEM
ISO Source Abbrev.: J. Photochem. Photobiol. A-Chem.
ISI Document Delivery No.: 558SL
Record 233 of 271
Author(s): Issaraseriruk, N (Issaraseriruk, Natthapol); Shitangkoon, A (Shitangkoon, Aroonsiri); Aree, T (Aree, Thammarat)
Title: Molecular docking study for the prediction of enantiodifferentiation of chiral styrene oxides by octakis(2,3-di-O-acetyl6-O-tert-butyldimethylsilyl)-gamma-cyclodextrin
Source: JOURNAL OF MOLECULAR GRAPHICS & MODELLING, 28 (6): 506-512 FEB 26 2010
Language: English
Author Keywords: gamma-Cyclodextrin; Enantiodifferentiation; Inclusion complexation; Molecular docking; PM3; Styrene
oxides
KeyWords Plus: LINEAR DEXTRINS ACYCLODEXTRINS; GAS-CHROMATOGRAPHY; ENANTIOSELECTIVE BINDING;
STATIONARY PHASES; SEPARATION; CYCLODEXTRINS; ENANTIOMERS; CHEMISTRY; RECOGNITION; SELECTORS
Abstract: A molecular docking study, using molecular mechanics calculations with AutoDock and semi-empirical PM3
calculations, was used to help predict the enantiodiscrimination of mono-substituted styrene oxides by octakis(2,3-di-O-acetyl6-O-tert-butyldimethylsilyl)-gamma-cyclodextrin(DIACTGCD), through the differences in the interaction energies and inclusion
geometries. The small differences in the binding free energy values (Delta Delta G) obtained from AutoDock do not show any
significant enantiodifferentiation, whereas structure re-optimization with the PM3 algorithm results in larger binding energy
differences (Delta Delta E). All DIACTGCD-styrene oxide inclusion complexes have binding energies in the range of -13.62 to
-3.83 kcal mol(-1), indicating that the host-guest interactions involved are hydrophobic and van der Waals forces between the
C=O acetyl group, the O2/O3/O4 atoms of DIACTGCD and the substituents/epoxide group of styrene oxides. The effect of the
same substituent position on the inclusion geometry is similar for all styrene oxides entirely embedded at or near the central
DIACTGCD cavity. The degrees of enantiodiscrimination are: o > m > p for Cl-, CH3- and CF3-enantiomers and o > p > m for
Br-, F- and NO2-enantiomers. The molecular docking results suggest that the complexation between styrene oxides and
DIACTGCD depends on the type and position of the substituents on the aromatic ring. The high discriminatory ability exhibited by
DIACTGCD against enantiomeric styrene oxides could potentially serve as a chiral selector, for example in chromatographic
separation. (C) 2009 Elsevier Inc. All rights reserved.
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Addresses: [Issaraseriruk, Natthapol; Shitangkoon, Aroonsiri; Aree, Thammarat] Chulalongkorn Univ, Dept Chem, Fac Sci,
Bangkok 10330, Thailand; [Issaraseriruk, Natthapol; Shitangkoon, Aroonsiri; Aree, Thammarat] Chulalongkorn Univ, Ctr Petr
Reprint Address: Aree, T, Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Times Cited: 0
ISSN: 1093-3263
DOI: 10.1016/j.jmgm.2009.11.005
29-char Source Abbrev.: J MOL GRAPH MODEL
ISO Source Abbrev.: J. Mol. Graph.
Subject Category: Biochemical Research Methods; Biochemistry & Molecular Biology; Computer Science, Interdisciplinary
Applications; Crystallography; Mathematical & Computational Biology
ISI Document Delivery No.: 558BP
Record 234 of 271
Author(s): Kodkeaw, P (Kodkeaw, Panarat); Phankosol, P (Phankosol, Piyawat); Jiratumnukul, N (Jiratumnukul, Nantana)
Title: Light Cured Fluoride Filled Denture-Coating Materials
Source: JOURNAL OF APPLIED POLYMER SCIENCE, 116 (2): 743-747 APR 15 2010
Language: English
Author Keywords: radiation cured coating; denture; fluoride
KeyWords Plus: ACRYLIC RESIN; CARIES; DEMINERALIZATION; SURFACE; ENAMEL; VIVO
Abstract: Light cured denture-coating materials were prepared by formulating an acrylate monomer with a photoinitiator system
(camphorquinone and dimethylaminoethyl methacrylate) using one of three base monomers [bisphenol A glycerolate diacrylate
(Bis-GDA), glycerol 1,3-diglycerolate diacrylate (GDA), and diurethane dimethacrylate (DU-DMA)] each with four diluents
[triethylene glycol dimethacrylate (TEGDMA), di(ethylene glycol) methyl ether methacrylate, 2-hydroxyethyl methacrylate
(HEMA), and methacrylic acid (MAA)] at a fixed 1 : 1 molar ratio of base monomer to diluent. The twelve formulations were
then evaluated for their surface hardness and water sorption as coating materials. The DU-DMA/MAA, DU-DMA/HEMA,
Bis-GDA/HEMA, and GDA/MAA based coatings provided a high level of both surface hardness and water sorption properties.
When sodium fluoride (NaF) or calcium fluoride (CaF2) was incorporated into those formulations, the fluoride ion release rate
from all four NaF containing coating materials was extremely high in the first week, decreasing sharply in the second week and
then decreasing in the later 2 weeks. In contrast, the CaF2 containing coating materials showed a slower sustained rate of fluoride
ion release over the 4-week test period, with the DU-DMA/HEMA based coating having a fluoride ion release pattern that meets
the requirements for dental use. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116: 743-747, 2010
Addresses: [Jiratumnukul, Nantana] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand; [Kodkeaw, Panarat]
Chulalongkorn Univ, Grad Sch, Bangkok 10330, Thailand; [Phankosol, Piyawat] Chulalongkorn Univ, Fac Dent, Dept
Prosthodont, Bangkok 10330, Thailand
Reprint Address: Jiratumnukul, N, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Chulalongkorn University, King's Dental Innovation Center
Contract grant sponsors: Chulalongkorn University, King's Dental Innovation Center.
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31558
23/11/2553 18:39
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ISI Document Delivery No.: 557CP
Record 235 of 271
Author(s): Nutthanara, P (Nutthanara, Pradit); Ngeontae, W (Ngeontae, Wittaya); Imyim, A (Imyim, Apichat); Kreethadumrongdat,
T (Kreethadumrongdat, Thanapong)
Title: Cyclic Dithia/Diaza with Dual Schiff Base Linkage Functionalized Polymers for Heavy Metal Adsorption
Language: English
Author Keywords: chelating resin; heavy metals; extraction; Schiff base
KeyWords Plus: SOLID-PHASE EXTRACTION; ATOMIC-ABSORPTION SPECTROMETRY; AMBERLITE XAD-2;
TRACE-ELEMENTS; CHELATING RESINS; WATER SAMPLES; PRECONCENTRATION; IONS; SEPARATION; BINDING
Abstract: Three new types of functionalized polystyrene-divinylbenzene resins containing two sulfur and two nitrogen atoms and
four nitrogen atoms in cyclic form were prepared by using two lab-synthesized ligands; 2-[3-(2-amino
ethylsulfanyl)-propylsulfanyl]-ethylamine (AEPE) and 2-[2-(2-amino-ethylsulfanyl)-ethylsulfanyl]-ethylamine (AEEE), and a
commercial one; triethylenetetramine (TETA). Chloromethylated polystyrene-divinylbenzene copolymer (Cl-PS-DVB) was
initially oxidized to aldehydic polystyrene-divinylbenzene (CHO-PS-DVB) with approximately 57% yield. CHO-PS-DVB was
subsequently reacted with the ligands through dual Schiff base linkage. The products were named AEPE-PS-DVB,
AEEE-PS-DVB and TETA-PS-DVB, respectively. The optimum coupling reaction times and temperatures were 6 h at 50 degrees
C for AEPE-PS-DVB, AEEE-PS-DVB and 6 h at room temperature for TETA-PS-DVB. The appropriate amount of the three
ligands was 2.65 mmol/g CHO-PS-DVB corresponding to the mole ratio between the chelating ligand and aldehyde group of 1 : 2.
All derivative resins were characterized by elemental analysis, thermogravimetry, FT-IR and FT-Raman spectroscopy and
Ninhydrin test. The adsorption properties of the synthesized resins towards Pb(II), Cu(II), Cd(II), Zn(II), Ni(II), Co(II) and Cr(III)
ions in aqueous solution were preliminarily investigated by batch method. AEPE-PS-DVB and AEEE-PS-DVB showed the same
sorption behavior. Their selectivity order was Pb(II) > Zn(II) > Cu(II) > Cd(II) and no significant adsorption for Co(II), Ni(II),
Cr(III) was observed. In addition, TETA-PS-DVB showed a selectivity toward only Pb(II). (C) 2009 Wiley Periodicals, Inc. J
Appl Polym Sci 116: 801-809, 2010
Addresses: [Nutthanara, Pradit; Imyim, Apichat; Kreethadumrongdat, Thanapong] Chulalongkorn Univ, Dept Chem, Fac Sci,
Bangkok 10330, Thailand; [Nutthanara, Pradit] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci, Bangkok 10330,
Thailand; [Ngeontae, Wittaya] Khon Kaen Univ, Dept Chem, Fac Sci, Khon Kaen 40002, Thailand
Reprint Address: Imyim, A, Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
GRU 51-017-23-008
Contract grant sponsor: Ratchadaphiseksomphot Endowment Fund, Chulalongkorn University; contract grant number: GRU
51-017-23-008.
Contract grant sponsor: Center for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University.
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31504
ISI Document Delivery No.: 557CP
23/11/2553 18:39
Record 236 of 271
Author(s): Ruangpornvisuti, V (Ruangpornvisuti, Vithaya)
Title: A DFT Investigation of Dissociation of Nitrous Acid, Transformation of Its Monomeric Isomers, Their Dimeric Isomers,
and Dimerization
Source: INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 110 (5): 1019-1029 APR 2010
Language: English
Author Keywords: nitrous acid; isomer; dimerization; thermodynamic properties; rate constants; equilibrium constants;
autoconversion
KeyWords Plus: CIS-TRANS-ISOMERIZATION; AB-INITIO; PHOTODISSOCIATION DYNAMICS; ROVIBRATIONAL
PARAMETERS; HONO; DENSITY; ENERGY; STATE; PREDISSOCIATION; SPECTROSCOPY
Abstract: The structure optimization of the monomeric isomers of the nitrous acid HONO, their cyclic dimers (HONO)(2), and
transition states of their transformations has been carried out using the density functional theory calculations at the
B3LYP/6-311++G(d,p) and B3LYP/aug-cc-pVQZ levels of theory. Three monomeric isomers (c, t, and z isomers) and six dimeric
isomers (cc, ct, cz, tt, zz, and tz isomers) were found. Dissociation of the most stable of the HONO isomer (t isomer) was
investigated and its rate constant was obtained at the UB3LYP/aug-cc-pVQZ level. Energetics, thermodynamic properties, rate,
and equilibrium constants of the monomeric and dimeric isomerizations of the nitrous acid were obtained. Dimerization energies,
enthalpies, and free energies of the dimeric isomers, (HONO)(2) were also obtained. (C) 2009 Wiley Periodicals, Inc. Int J
Quantum Chem 110: 7019-7.029, 2010.
Addresses: [Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Dept Chem, Fac Sci, Supramol Chem Res Unit, Bangkok 10330,
Thailand; [Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Ruangpornvisuti, V, Chulalongkorn Univ, Dept Chem, Fac Sci, Supramol Chem Res Unit, Bangkok 10330,
Thailand.
Funding Agency
Grant Number
The Thailand Research Fund (TRF) is gratefully acknowledged for providing many facilities for our research group, the
Molecular Modeling and Computational Chemistry Research Group (MMCCRG), the Supramolecular Chemistry Research Unit
(SCRU), Department of Chemistry, Chulalongkorn University.
Times Cited: 0
ISSN: 0020-7608
DOI: 10.1002/qua.22146
29-char Source Abbrev.: INT J QUANTUM CHEM
ISO Source Abbrev.: Int. J. Quantum Chem.
Subject Category: Chemistry, Physical; Mathematics, Interdisciplinary Applications; Physics, Atomic, Molecular & Chemical
Record 237 of 271
Author(s): Kongim, B (Kongim, Bangon); Sutcharit, C (Sutcharit, Chirasak); Tongkerd, P (Tongkerd, Piyoros); Tan, SHA (Tan,
Shau-Hwai Aileen); Quynh, NX (Quynh, Nguyen Xuan); Naggs, F (Naggs, Fred); Panha, S (Panha, Somsak)
Title: Karyotype Variations in the Genus Pollicaria (Caenogastropoda: Pupinidae)
Source: ZOOLOGICAL STUDIES, 49 (1): 125-131 JAN 2010
Language: English
Author Keywords: Operculate snails; Pollicana; Karyotype variation; Sex determination; Sex chromosome
KeyWords Plus: PROSOBRANCHIA; CHROMOSOME; CYCLOPHORIDAE; SPECIATION; GASTROPODA; EVOLUTION
Abstract: Bangon Kongim, Chirasak Sutcharit, Piyoros Tongkerd, Shau-Hwai Aileen Tan, Nguyen Xuan Quynh, Fred Naggs, and
Sornsak Panha (2010) Karyotype variations in the genus Pollicaria (Caenogastropoda Pupinidae) Zoological Studies 49(1)
125-131 The karyotypes of 4 recognized Southeast Asian species of the genus Pollicana were examined All 7 populations studied
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were found to possess the same chromosome pattern n = 13, 2n = 26 However, the fundamental chromosome number (FN) of both
populations of P elephas from the south (Malaysia) was 46, while those for the other 3 species (5 populations) were all 50
Moreover. although each species had a unique karyotype, the karyotype of the isolated species, P elephas, differed from the other
3 northern species in exhibiting 3 distinct telocentric chromosomes (2m+6sm+2st+3t) The 3 smaller species, P mouhoti from
northeastern Thailand, P myersii from Laos, and P gravida from 2 localities in northern Vietnam, exhibited similar karyotypes of
6m+4sm+2st+1t, 4m+6sm+2st+1t, and (3m+7sm+2st+1t and 2m+8sm+2st+1t) respectively, with only 1 telocentric chromosome
The karyotypes of the 2 morphologically variant populations of P gravida from Vietnam differed by 1 in the number of metacentric
and submetacentric chromosomes The genus Pollicana exhibits slight rearrangements in the centromeric positions of the smaller
chromosomes and the deletion of 1 chromosome pair A ZZ-ZW sex-determining system is proposed for this genus
http://zoolstud.sinica.edu.tw/Journals/49.1/125.pdf
Addresses: [Sutcharit, Chirasak; Tongkerd, Piyoros; Panha, Somsak] Chulalongkorn Univ, Anim Systemat Res Unit, Dept Biol,
Fac Sci, Bangkok 10330, Thailand; [Kongim, Bangon] Mahasarakham Univ, Dept Biol, Fac Sci, Maha Sarakham 44150, Thailand;
[Tan, Shau-Hwai Aileen] Univ Sains Malaysia, Sch Biol Sci, Minden 11800, Penang, Malaysia; [Quynh, Nguyen Xuan] Hanoi
Univ Sci, Fac Biol, Hanoi, Vietnam; [Naggs, Fred] Nat Hist Museum, Dept Zool, London SW7 5BD, England
Reprint Address: Panha, S, Chulalongkorn Univ, Anim Systemat Res Unit, Dept Biol, Fac Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
BRT Program (TRF-CNRS)
Mahasarakharn Univ
Darwin Initiative
15-018
We are indebted to R Janssen (SMF, Frankfurt), P Bouchet, and V. Hbros (MNHN, Paris) for kindly permitting C Sutcharit and S
Panha to study type specimens We are also grateful to Z Yasin, B W Ng, N. Razalli, P Prasankok, P Pimwichai, and R
Chanaboon for assistance with fieldwork. This project were funded by the BRT Program (TRF-CNRS) and the CHE-RG to S
Panha, Mahasarakharn Univ (grant year 2008) and the Darwin Initiative (grant 15-018)
Times Cited: 0
ISSN: 1021-5506
ISI Document Delivery No.: 553OZ
Record 238 of 271
Author(s): Tachaboonyakiat, W (Tachaboonyakiat, Wanpen); Netswasdi, N (Netswasdi, Nitsana); Srakaew, V (Srakaew,
Veeranuch); Opaprakasit, M (Opaprakasit, Mantana)
Title: Elimination of inter- and intramolecular crosslinks of phosphorylated chitosan by sodium salt formation
Source: POLYMER JOURNAL, 42 (2): 148-156 FEB 2010
Language: English
Author Keywords: crosslink; intermolecular; intramolecular; phophorylation; phosphorylated chitosan; sodium salt; water
soluble
KeyWords Plus: CALCIUM-PHOSPHATE CEMENTS; PARTIALLY DEACETYLATED CHITIN; STRUCTURALCHARACTERIZATION; POLYELECTROLYTE COMPLEX; CHEMICAL-MODIFICATION; FUNCTIONAL POLYMERS;
DERIVATIVES; PROPERTY; RABBITS; CARRIER
Abstract: Inter- and intramolecular crosslinking is the main cause of the water insolubility of phosphorylated chitosan synthesized
with a phosphorus pentoxide/methanesulfonic acid system. The goal of this study was to eliminate inter- and intramolecular
crosslinks and synthesize water-soluble phosphorylated chitosan. Two main factors for the formation of inter- and intramolecular
crosslinks are W electrostatic interaction between amino groups and methanesulfonic acid salt and (ii) electrostatic interaction
between ammonium groups and phosphoric groups. The influences of ethanol washing and sodium salt formation on the
elimination of inter- and intramolecular crosslinks were investigated. Sodium phosphorylated chitosan was water soluble. The
solubility was independent of the degree of phosphoric substitution. Polymer Journal (2010) 42, 148-156;
doi:10.1038/pj.2009.317; published online 23 December 2009
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Addresses: [Tachaboonyakiat, Wanpen; Netswasdi, Nitsana; Srakaew, Veeranuch; Opaprakasit, Mantana] Chulalongkorn Univ,
Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand
Reprint Address: Tachaboonyakiat, W, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
This project was supported by Grants for Development of New Faculty Staff, Chulalongkorn University and partially by the
Graduate Thesis Grant, Chulalongkorn University.
Times Cited: 0
Publisher: SOC POLYMER SCIENCE JAPAN
Publisher Address: SHINTOMICHO BLDG, 3 10 9 IRIFUNE, CHUO-KU, TOKYO 104-0042, JAPAN
ISSN: 0032-3896
DOI: 10.1038/pj.2009.317
29-char Source Abbrev.: POLYM J
ISO Source Abbrev.: Polym. J.
ISI Document Delivery No.: 555IG
Record 239 of 271
Author(s): Chuayjuljit, S (Chuayjuljit, S.); Maungchareon, A (Maungchareon, A.); Saravari, O (Saravari, O.)
Title: Preparation and Properties of Palm Oil-Based Rigid Polyurethane Nanocomposite Foams
Source: JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, 29 (2): 218-225 JAN 2010
Language: English
Author Keywords: palm oil; polyol; polyurethane foam; montmorillonite; nanocomposite
KeyWords Plus: SOYBEAN OIL
Abstract: In this study, palm oil-based polyurethane (PU)/montmorillonite (MMT) nanocomposite foams were produced via an in
situ polymerization method. The palm oil-based polyol synthesized by transesterification reaction of palm oil and pentaerythritol
was reacted with commercial polymeric diphenylmethane diisocyanate in the presence of water (blowing agent),
N,N-dimethylcyclohexylamine (catalyst), polydimethylsiloxane (surfactant) and MMT to produce rigid PU nanocomposite foams.
The obtained foams containing different MMT contents (1, 3, and 5 wt%) were characterized for their structure, morphology,
density, hardness, compressive strength and thermal stability. X-ray diffraction patterns revealed that the nanocomposites formed
were exfoliated. Scanning electron micrographs showed that the cells of the obtained PU foams were closed cells. The
nanocomposite foams showed a higher number of cells with a smaller cell size as the amount of MMT increased. The density and
the compressive strength of the foams increased with the increasing amount of MMT and were in the range of 38.5-46.6 kg/m(3)
and 116.7-171.6 kPa, respectively. Moreover, addition of MMT also improved the thermal stability of the foams.
Addresses: [Chuayjuljit, S.; Maungchareon, A.; Saravari, O.] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330,
Thailand
Reprint Address: Saravari, O, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Metallurgy and Materials Science Research Institute
National Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials
The authors gratefully acknowledge Chulalongkorn University, Metallurgy and Materials Science Research Institute and
National Center of Excellence for Petroleum, Petrochemicals, and Advanced Materials for financial, material and instrument
support.
23/11/2553 18:39
Times Cited: 0
ISSN: 0731-6844
DOI: 10.1177/0731684408096949
29-char Source Abbrev.: J REINF PLAST COMPOSITE
ISO Source Abbrev.: J. Reinf. Plast. Compos.
Subject Category: Materials Science, Composites; Polymer Science
ISI Document Delivery No.: 554OW
Record 240 of 271
Author(s): Ploymalee, S (Ploymalee, Suthasinee); Charuchinda, S (Charuchinda, Sireerat); Srikulkit, K (Srikulkit, Kawee)
Title: Hydrophilic Property of Polyester Fabric Coated with Polyethylene Glycolated Bisphenol A
Language: English
Author Keywords: polyester; hydrophilic; hydrophilic-hydrophobic compound; polyethylene glycolated bisphenol A
KeyWords Plus: POLY(ETHYLENE-TEREPHTHALATE) FIBERS
Abstract: Polyethylene glycolated bisphenol A (PEGBPA), a hydrophilic-hydrophobic compound, was synthesized and applied
onto polyester fabric using a pad-dry-cure method to impart a durable hydrophilic property. After coating and heat fixation, the
treated fabrics were evaluated for wettability by measurement of the net moisture regain and wicking distance, and their Surfaces
were characterized by SEM and ATR/FTIR spectroscopy. The durability of the treated fabrics were tested by ten standard repeat
washings and samples were characterized for their wettability after each wash. The surface properties of the fabrics changed from
hydrophobic to hydrophilic after heat treatment with the coating agent PEGBPA. Using the degree of increased moisture regain and
wicking distance of the treated fabrics as a guide, optimal treatment was attained by coating with 10-20 g/L PEGBPA followed by
160-180 degrees C heat treatment for 3 min. Wash fastness evaluations, coupled with SEM and ATR/FTIR analyses, showed that
PEGBPA exhibited good adhesion onto the PET surface and was capable of withstanding repeated washings. It was concluded
that the coating adhesion solely depended on physical aspects, Such as hydrophobic-hydrophobic interactions between the
bisphenol A segment of PEGBPA and the PET aromatic segment. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 116:
473-478, 2010
Addresses: [Ploymalee, Suthasinee; Charuchinda, Sireerat; Srikulkit, Kawee] Chulalongkorn Univ, Fac Sci, Dept Mat Sci,
Bangkok 10330, Thailand; [Charuchinda, Sireerat; Srikulkit, Kawee] Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem &
Adv Mat, Bangkok 10330, Thailand
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31530
ISI Document Delivery No.: 555VS
Record 241 of 271
Author(s): Ruankaew, N (Ruankaew, Nipada); Le Page, C (Le Page, Christophe); Dumrongrojwattana, P (Dumrongrojwattana,
Pongchai); Barnaud, C (Barnaud, Cecile); Gajaseni, N (Gajaseni, Nantana); van Paassen, A (van Paassen, Annemarie); Trebuil, G
(Trebuil, Guy)
Title: Companion modelling for integrated renewable resource management: a new collaborative approach to create common
values for sustainable development
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Source: INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY, 17 (1): 15-23 2010
Language: English
Author Keywords: companion modelling; Northern Thailand; participatory approach; renewable resources; sustainable
management
KeyWords Plus: SYSTEMS; SIMULATIONS; COMPLEXITY
Abstract: The sustainable management of renewable resources is often complicated by the diversity and dynamic nature of the
ecological and socio-economic systems involved. As the dynamics and interactions of these systems are highly complex and
frequently unpredictable, there is a need to opt for transdisciplinary research addressing adaptive and integrated management of
renewable resources. Companion modelling (ComMod) is a multi-agent systems (MAS)-based approach relying on synergistic
effects between role-playing games (RPG) and agent-based models (ABM) to facilitate collective information sharing and
learning, and to improve coordination among stakeholders for negotiation and decision-making. The iterative and adaptive
sequences of fieldwork with modelling activities allows the mutual and interactive participation of stakeholders during the design,
implementation, calibration and validation steps of the models, as well as exploration of possible scenarios. ComMod was
implemented in a study of the conflict between two ethnic communities and a newly proposed national park in Northern Thailand.
Deforestation, biodiversity conservation and the livelihoods of the villagers were key issues discussed during RPG sessions with
small groups of participants, and subsequently represented in an ABM simulator used with a larger audience. Consequently, the
local stakeholders learned about agro-ecological and socio-economic dynamics and gained an increased awareness of these key
issues. Mutual understanding was improved, and the importance of collaborative discussion, essential to negotiations and
decision-making, became obvious. Finally, this Northern Thailand experience has shown that collaborative interactions mediated
by ComMod were supportive of improved communication and joint learning for the adaptive and integrated sustainable
management of renewable resources.
Addresses: [Ruankaew, Nipada; Dumrongrojwattana, Pongchai; Gajaseni, Nantana] Chulalongkorn Univ, Fac Sci, Dept Biol,
Bangkok, Thailand; [Ruankaew, Nipada; Le Page, Christophe; Barnaud, Cecile; Gajaseni, Nantana; Trebuil, Guy] Chulalongkorn
Univ, CU CIRAD ComMod Project, Bangkok, Thailand; [Le Page, Christophe; Barnaud, Cecile; Trebuil, Guy] UPR GREEN,
CIRAD, F-34398 Montpellier, France; [Dumrongrojwattana, Pongchai] Univ Paris 10, Dept Geog, Nanterre, Hauts De Seine,
France; [van Paassen, Annemarie] Wageningen Univ, Dept Commun Sci, Commun & Innovat Grp, Wageningen, Netherlands
Reprint Address: Ruankaew, N, Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok, Thailand.
Funding Agency
Grant Number
Challenge Program Water and Food (CPWF) of CGIAR PN25
The authors thank Chulalongkorn University (CU) for creating an inspiring research environment. They also thank the Challenge
Program Water and Food (CPWF) of CGIAR for financial support under Project PN25 for our participation in the second
International Sustainability Conference in 2008.
Times Cited: 0
ISSN: 1350-4509
DOI: 10.1080/13504500903481474
29-char Source Abbrev.: INT J SUSTAIN DEV WORLD ECOL
ISO Source Abbrev.: Int. J. Sustain. Dev. World Ecol.
Subject Category: Ecology
ISI Document Delivery No.: 555YU
Record 242 of 271
Author(s): Boonchird, C (Boonchird, C.); Mahapanichkul, T (Mahapanichkul, T.); Cherdshewasart, W (Cherdshewasart, W.)
Title: Differential binding with ER alpha and ER beta of the phytoestrogen-rich plant Pueraria mirifica
Source: BRAZILIAN JOURNAL OF MEDICAL AND BIOLOGICAL RESEARCH, 43 (2): 195-200 FEB 2010
Language: English
Author Keywords: YES assay; Estrogen receptor alpha (ER alpha); Estrogen receptor beta (ER beta); Phytoestrogen;
Isoflavonoid; Pueraria mirifica
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KeyWords Plus: ESTROGEN-RECEPTOR-ALPHA; MAJOR ISOFLAVONOID CONTENTS; BREAST-CANCER CELLS;
ANTIESTROGENIC ACTIVITIES; BONE LOSS; HERB; YEAST; ASSAY; RATS; COACTIVATOR
Abstract: Variations in the estrogenic activity of the phytoestrogen-rich plant, Pueraria mirifica, were determined with yeast
estrogen screen (YES) consisting of human estrogen receptors (hER) hER alpha and hER beta and human transcriptional
intermediary factor 2 (hTIF2) or human steroid receptor coactivator 1 (hSRC1), respectively, together with the beta-galactosidase
expression cassette. Relative estrogenic potency was expressed by determining the beta-galactosidase activity (EC50) of the tuber
extracts in relation to 17 beta-estradiol. Twenty-four and 22 of the plant tuber ethanolic extracts interacted with hER alpha and
hER beta, respectively, with a higher relative estrogenic potency with hER beta than with hER alpha. Antiestrogenic activity of
the plant extracts was also determined by incubation of plant extracts with 17 beta-estradiol prior to YES assay. The plant extracts
tested exhibited antiestrogenic activity. Both the estrogenic and the antiestrogenic activity of the tuber extracts were metabolically
activated with the rat liver S9-fraction prior to the assay indicating the positive influence of liver enzymes. Correlation analysis
between estrogenic potency and the five major isoflavonoid contents within the previously HPLC-analyzed tuberous samples
namely puerarin, daidzin, genistin, daidzein, and genistein revealed a negative result.
Addresses: [Cherdshewasart, W.] Chulalongkorn Univ, Dept Biol, Fac Sci, Bangkok 10330, Thailand; [Boonchird, C.;
Mahapanichkul, T.] Mahidol Univ, Fac Sci, Dept Biotechnol, Bangkok 10400, Thailand
Reprint Address: Cherdshewasart, W, Chulalongkorn Univ, Dept Biol, Fac Sci, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Center of Excellence on Agricultural Biotechnology
Postgraduate Education and Research Development Office
Ministry of Education
This research was partially supported by the Center of Excellence on Agricultural Biotechnology, Postgraduate Education and
Research Development Office, Commission on Higher Education, the Ministry of Education. We would like to thank Prof. Dr.
Tsutomo Nishihara and Prof. Dr. Akinori Ohta for their generosity providing yeast strains and plasmids, respectively.
Times Cited: 0
Publisher: ASSOC BRAS DIVULG CIENTIFICA
Publisher Address: FACULDADE MEDICINA, SALA 21, 14049 RIBEIRAO PRETO, SAO PAULO, 00, BRAZIL
ISSN: 0100-879X
29-char Source Abbrev.: BRAZ J MED BIOL RES
ISO Source Abbrev.: Brazilian J. Med. Biol. Res.
Subject Category: Biology; Medicine, Research & Experimental
ISI Document Delivery No.: 554CS
Record 243 of 271
Author(s): Chuayjuljit, S (Chuayjuljit, Saowaroj); Su-uthai, S (Su-uthai, Siriwan); Charuchinda, S (Charuchinda, Sireerat)
Title: Poly(vinyl chloride) film filled with microcrystalline cellulose prepared from cotton fabric waste: properties and
biodegradability study
Source: WASTE MANAGEMENT & RESEARCH, 28 (2): 109-117 FEB 2010
Language: English
Author Keywords: microcrystalline cellulose; poly(vinyl chloride); biodegradability
KeyWords Plus: THERMAL-DEGRADATION; ACID; NANOCOMPOSITE; MIXTURES; POLYMERS
Abstract: Hydrolysis of cotton fabric waste to produce microcrystalline cellulose (MCC) was carried out using 2.5 N
hydrochloric acid at 100 degrees C for 30 min. Characterization of the structure, morphology, particle size as well as the thermal
decomposition of the obtained MCC were studied using X-ray diffractometer, scanning electron microscope and laser light
scattering particle size analyzer and thermogravimetric analyzer, respectively. These results indicated that the obtained MCC had
a fibrous structure of a 40 mu m average particle size and possessed a form of highly native crystalline cellulose I. In addition, its
maximum degradation temperature was observed at 350 C. The poly( vinyl chloride) ( PVC) films in this work were produced by
first blending the produced MCC with PVC resin in amounts of 5-30 parts per hundred of resin. The blends were then made into
film using a two-roll mill. The tensile properties of the film were measured using a Universal Testing Machine. The
biodegradation tests were carried out in soil and in a moisture-controlled chamber. The biodegradability was estimated by the
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loss of mass, moisture absorption capacity and electron microscope studies. It was found that the tensile strength and Young's
modulus of the blends increased with increasing amounts of MCC. Similarly, moisture absorption and biodegradability of the
films were also increased as the amount of MCC increased. The results implied that MCC behaved not only as a reinforcing filler
but also as a biodegradability promoter of PVC films.
Addresses: [Chuayjuljit, Saowaroj] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand; Chulalongkorn Univ,
Natl Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Chuayjuljit, S, Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Department of Materials Science, Faculty of Science
National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn
University
The authors gratefully acknowledge the Department of Materials Science, Faculty of Science and National Center of Excellence
for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University for financial, material and instrument
support. We also thank Thainam Plastic Company for material support.
Times Cited: 0
ISSN: 0734-242X
DOI: 10.1177/0734242X09339324
29-char Source Abbrev.: WASTE MANAGE RES
ISO Source Abbrev.: Waste Manage. Res.
Subject Category: Engineering, Environmental; Environmental Sciences
ISI Document Delivery No.: 551EI
Record 244 of 271
Author(s): Saiwichai, T (Saiwichai, Tawee); Sangalangkarn, V (Sangalangkarn, Vanida); Kawahara, K (Kawahara, Ko-ichi);
Oyama, Y (Oyama, Yoko); Chaichalotornkul, S (Chaichalotornkul, Sirintip); Narkpinit, S (Narkpinit, Somphong);
Harnyuttanakorn, P (Harnyuttanakorn, Pongchai); Singhasivanon, P (Singhasivanon, Pratap); Maruyama, I (Maruyama, Ikuro);
Tancharoen, S (Tancharoen, Salunya)
Title: GREEN TEA EXTRACT SUPPLEMENT INHIBITION OF HMGB1 RELEASE IN RATS EXPOSED TO CIGARETTE
SMOKE
Source: SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH, 41 (1): 250-258 JAN 2010
Language: English
Author Keywords: green tea; HMGB1; cigarette smoke
KeyWords Plus: ADOLESCENT NICOTINE EXPOSURE; MOBILITY GROUP BOX-1; ENDOTHELIAL-CELLS; LATE
MEDIATOR; FOOD-INTAKE; IN-VITRO; COTININE; PROTEIN; MICE; INFLAMMATION
Abstract: Tobacco-smoke exposure is linked to carcinogenic, oxidative and inflammatory cellular reactions. Green tea has been
reported to have anti-release properties against various pro-inflammatory cytokines. To determine the effects of green tea extract
(GTE) on serum high mobility group box-1 (HMGB1) levels in rats exposed to cigarette smoke (CS), we divided rats into 4
treatment groups: (1) CS only, (2) dietary supplement with GTE (3 mg/d) and CS (GCSI.), (3) dietary supplement with GTE (4.5
mg/d) and CS (GCS2) and (4) a control group. HMGB1 and cotinine serum levels were analyzed by ELISA. The average serum
HMGB1 level in the CS group was significantly higher than the other groups (p<0.01), indicating the release of HMGB1 into the
blood was stimulated by CS exposure, while GTE consumption suppressed HMGB1 levels. Rats exposed to CS had an average
serum cotinine level of 37 ng/ml, indicating tobacco related compounds were present in the rats' blood. However, treatment with
GTE did not reduce cotinine levels in all groups. Cotinine stimulated HMGB1 secretion in a dose- and time-dependent manner,
and HMGB1 levels were suppressed by GTE in murine macrophage cell lines. Our results show GTE supplementation may offer
beneficial systemic effects and suppress HMGB1 by protecting against cell inflammation.
Addresses: [Sangalangkarn, Vanida; Tancharoen, Salunya] Mahidol Univ, Fac Dent, Dept Pharmacol, Bangkok 10400, Thailand;
[Saiwichai, Tawee] Mahidol Univ, Fac Publ Hlth, Dept Parasitol & Entomol, Bangkok 10400, Thailand; [Chaichalotornkul,
Sirintip; Narkpinit, Somphong] Mahidol Univ, Fac Sci, Dept Pathobiol, Bangkok 10400, Thailand; [Singhasivanon, Pratap]
Mahidol Univ, Dept Trop Hyg, Fac Trop Med, Bangkok 10400, Thailand; [Kawahara, Ko-ichi; Oyama, Yoko; Maruyama, Ikuro]
Kagoshima Univ, Grad Sch Med & Dent Sci, Dept Lab & Vasc Med, Kagoshima 890, Japan; [Harnyuttanakorn, Pongchai]
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Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok, Thailand
Reprint Address: Tancharoen, S, Mahidol Univ, Fac Dent, Dept Pharmacol, Bangkok 10400, Thailand.
Funding Agency
Grant Number
Thai Commission on Higher Education, Ministry of Education
Faculty of Graduate Studies, Mahidol University, Thailand
This research was partially supported by a grant for instructor development in the field of epidemiology, funded by the Thai
Commission on Higher Education, Ministry of Education, and the Faculty of Graduate Studies, Mahidol University, Thailand.
We thank Dr W Suvitayavat, Dr N Vechvongvan, Dr K Chamroonsawaddhi, Dr W Pandii, and Dr S Panasahatham for their
excellent technical assistance and statistical analysis.
Times Cited: 0
Publisher: SOUTHEAST ASIAN MINISTERS EDUC ORGANIZATION
Publisher Address: SEAMEO-TROPMED, 420-6 RAJVITHI RD,, BANGKOK 10400, THAILAND
ISSN: 0125-1562
29-char Source Abbrev.: SE ASIAN J TROP MED PUB HEALT
ISO Source Abbrev.: Southeast Asian J. Trop. Med. Public Health
Subject Category: Public, Environmental & Occupational Health; Infectious Diseases; Tropical Medicine
Record 245 of 271
Author(s): Tananuwong, K (Tananuwong, Kanitha); Tewaruth, W (Tewaruth, Wanida)
Title: Extraction and application of antioxidants from black glutinous rice
Source: LWT-FOOD SCIENCE AND TECHNOLOGY, 43 (3): 476-481 APR 2010
Language: English
Author Keywords: Black glutinous rice; Phenolics; Antioxidant; Extraction; Application
KeyWords Plus: SATIVA L. INDICA; PHENOLIC-COMPOUNDS; CEREAL PRODUCTS; BRAN EXTRACTS; CAPACITY;
VEGETABLES; CULTIVARS; EMULSIONS; ASSAYS; RATS
Abstract: This research aimed to determine optimum extraction condition of black glutinous rice crude extract and to determine
its application as an antioxidant in fish oil enriched mayonnaise. Black glutinous rice flour was extracted twice with 70:30
acetone-water mixture (v/v) at pH 2 and 6.8 for 2, 4 and 8 h of total extraction times. Total phenolic content (TPC), total
monomeric anthocyanin content (TMA) and antioxidant activities as determined by ferric reducing antioxidant power (FRAP) and
2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity assays of the crude extracts were measured. The extraction
with pH 6.8 solvent for 4 h yielded the crude extract with significantly highest antioxidant activities analyzed by both FRAP and
DPPH tests (p <= 0.05) although its TPC and TMA were not greatest. The freeze-dried extract from this condition was then added
into fish oil enriched mayonnaise at 500 mg/kg and 1000 mg/kg (oil weight basis). Conjugated diene hydroperoxides (CDH),
thiobarbituric acid reactive substance (TBARs) and color in CIELAB system of the mayonnaise samples stored at 30 degrees C
were determined up to 30 days. The samples contained 1000 mg/kg crude extract had lowest rate of CDH and TBARs increase but
had greatest extent of color deterioration, possibly due to anthocyanin degradation and Maillard reaction. (C) 2009 Elsevier Ltd.
Addresses: [Tananuwong, Kanitha; Tewaruth, Wanida] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330,
Thailand
Reprint Address: Tananuwong, K, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Grant for Development of New Faculty Staff
Chulalongkorn University and Grant for Graduate Research
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Financial supports from Grant for Development of New Faculty Staff, Chulalongkorn University and Grant for Graduate
Research, Graduate School of Chulalongkorn University are gratefully acknowledged.
Times Cited: 0
ISSN: 0023-6438
DOI: 10.1016/j.lwt.2009.09.014
29-char Source Abbrev.: LWT-FOOD SCI TECHNOL
ISO Source Abbrev.: LWT-Food Sci. Technol.
ISI Document Delivery No.: 550ZA
Record 246 of 271
Author(s): Thawornwisit, S (Thawornwisit, S.); Charmondusit, K (Charmondusit, K.); Rempel, GL (Rempel, G. L.); Hinchiranan,
N (Hinchiranan, N.); Prasassarakich, P (Prasassarakich, P.)
Title: Poly(Methyl Methacrylate-co-Styrene) Modified with Hydrogenated Natural Rubber
Source: JOURNAL OF ELASTOMERS AND PLASTICS, 42 (1): 35-47 JAN 2010
Language: English
Author Keywords: hydrogenation; natural rubber; poly(methyl methacrylate); styrene; composite materials
KeyWords Plus: HOMOGENEOUS CATALYTIC-HYDROGENATION; OSHCL(CO)(O-2)(PCY3)(2); METHACRYLATE);
COMPLEXES
Abstract: The mechanical properties of brittle polymers are improved by blending with rubbers. Due to C C in the rubber
structure, polymer/rubber blends have poor thermal and oxidative resistance. In this research, the mechanical and physical
properties including the morphology of poly(methyl methacrylate-co-styrene) sheet modified by blending with hydrogenated
natural rubber were investigated. The optimum styrene content in copolymer sheets for improving the mechanical properties was
20% (w/w) and inclusion of hydrogenated natural rubber at 1% (w/w) exhibited a higher thermal resistance. This implies that
hydrogenated natural rubber can be used as an impact modifier and thermal resistance improver for acrylic plastics.
Addresses: [Hinchiranan, N.; Prasassarakich, P.] Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand;
[Hinchiranan, N.; Prasassarakich, P.] Chulalongkorn Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Rempel,
G. L.] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada; [Charmondusit, K.] Mahidol Univ, Fac Environm &
Resource Studies, Nakhon Pathom 73170, Thailand; [Thawornwisit, S.] Chulalongkorn Univ, Fac Sci, Program Petrochem &
Polymer Sci, Bangkok 10330, Thailand
Reprint Address: Prasassarakich, P, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
TRF
The authors gratefully acknowledge the funding support from TRF Master Research Grants Scholarship and Center for
Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University. The authors also wish to express their
thankfulness to Pan Asia Industrial Co., Ltd for supplying the chemicals and equipment for casting.
Times Cited: 0
ISSN: 0095-2443
DOI: 10.1177/0095244309345407
29-char Source Abbrev.: J ELASTOM PLAST
ISO Source Abbrev.: J. Elastomer Plast.
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Subject Category: Materials Science, Multidisciplinary; Polymer Science
ISI Document Delivery No.: 551EN
Record 247 of 271
Author(s): Jaruwat, P (Jaruwat, Pattaraluk); Kongjao, S (Kongjao, Sangkorn); Hunsom, M (Hunsom, Mali)
Title: Management of biodiesel wastewater by the combined processes of chemical recovery and electrochemical treatment
Source: ENERGY CONVERSION AND MANAGEMENT, 51 (3): 531-537 MAR 2010
Language: English
Author Keywords: Electro-oxidation; Biodiesel wastewater; Oil-rich phase; Management; Recovered; Ti/RuO2
KeyWords Plus: SUPERCRITICAL METHANOL; VEGETABLE-OILS; RAPESEED OIL; TRANSESTERIFICATION;
OXIDATION; PLANT
Abstract: A two stage management of raw biodiesel wastewater was carried out at a laboratory scale and ambient temperature. In
the first step, biodiesel was chemically recovered from the wastewater using sulphuric acid as a proton donor with subsequent
natural phase separation. Biodiesel was recovered from the raw biodiesel wastewater, in this case at 6-7% (w/w). In the second
stage, the aqueous phase discharged from the first stage was supplemented with sodium chloride to 0.061 M and subject to
electro-oxiclation using a Ti/RuO2 electrode. The combined treatment completely removed COD and oil and grease, and reduced
BOD levels by more than 95%. The rate of removal of all three pollutants fitted a pseudo-first-order rate kinetics with oil and
grease removal being approximately 8-16- and 2-7-fold faster than BOD and COD removal, respectively. (C) 2009 Elsevier Ltd.
Addresses: [Kongjao, Sangkorn; Hunsom, Mali] Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand;
[Jaruwat, Pattaraluk] Chulalongkorn Univ, Fac Sci, Dept Environm Sci, Bangkok 10330, Thailand; [Hunsom, Mali] Chulalongkorn
Univ, Ctr Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Reprint Address: Hunsom, M, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Phaya Thai Rd, Bangkok 10330, Thailand.
Times Cited: 0
ISSN: 0196-8904
DOI: 10.1016/j.enconman.2009.10.018
29-char Source Abbrev.: ENERG CONV MANAGE
ISO Source Abbrev.: Energy Conv. Manag.
Subject Category: Thermodynamics; Energy & Fuels; Mechanics; Physics, Nuclear
ISI Document Delivery No.: 549YI
Record 248 of 271
Author(s): Gaskell, EE (Gaskell, Elsie E.); Sihanonth, P (Sihanonth, Prakitsin); Rostron, C (Rostron, Christopher); Hutcheon, GA
(Hutcheon, Gillian A.); Hobbs, G (Hobbs, Glyn)
Title: Isolation and identification of mucinolytic actinomycetes
Source: ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR
MICROBIOLOGY, 97 (3): 211-220 MAR 2010
Language: English
Author Keywords: Actinomycetes; Isolation; Characterisation; Mucin; Mucinolytic enzymes
KeyWords Plus: STREPTOMYCES-EXFOLIATUS SMF13; MICROBIAL ALKALINE PROTEASES; SERINE-PROTEINASE;
THERMOPHILIC STREPTOMYCES; DERMATOPHILUS-CONGOLENSIS; EXTRACELLULAR PROTEASES;
PROTEOLYTIC ENZYMES; INTESTINAL MUCIN; PURIFICATION; DIFFERENTIATION
Abstract: Biochemical and physiological tests, and 16S rRNA gene sequences, were used to classify nine Actinomycete strains
isolated from soil and sand samples in Thailand. These strains were isolated based on their ability to readily degrade mucin
glycoproteins. A turbidometric based mucinolytic assay was developed to confirm this. In addition all strains showed significant
production of proteases. Phylogenetic analysis of the strains revealed that from the nine isolated Actinomycete strains eight were
closely related to Streptomyces species and one was identified as belonging to the genus Kitasatospora. The biochemical and
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physiological tests performed identified two strain pairs that were similar (with only 3.9% difference observed) and this was in
accordance with the phylogenetic results obtained. The remaining strains were distinct from each other, with the soil-isolated
strains forming a separate clade to the sand-isolated strains in the inferred phylogenetic trees. The isolated mucinolytic
Actinomycete strains will be the subject of further investigations into their proteolytic and glycosidic activity. Mucin degrading
enzymes such as these are studied for their potential to be used for the development of a drug delivery system.
Addresses: [Gaskell, Elsie E.; Rostron, Christopher; Hutcheon, Gillian A.; Hobbs, Glyn] Liverpool John Moores Univ, Sch
Pharm & Biomol Sci, Liverpool L3 3AF, Merseyside, England; [Sihanonth, Prakitsin] Chulalongkorn Univ, Fac Sci, Dept
Microbiol, Bangkok 10300, Thailand
Reprint Address: Gaskell, EE, Liverpool John Moores Univ, Sch Pharm & Biomol Sci, Byrom St, Liverpool L3 3AF,
Merseyside, England.
Times Cited: 0
Publisher: SPRINGER
ISSN: 0003-6072
DOI: 10.1007/s10482-009-9402-z
29-char Source Abbrev.: ANTON LEEUWENHOEK INT J GEN M
ISO Source Abbrev.: Antonie Van Leeuwenhoek
ISI Document Delivery No.: 551IA
Record 249 of 271
Author(s): Chankhamjon, K (Chankhamjon, Kanokwan); Petsom, A (Petsom, Amorn); Sawasdipuksa, N (Sawasdipuksa,
Narumon); Sangvanich, P (Sangvanich, Polkit)
Title: Hemagglutinating activity of proteins from Parkia speciosa seeds
Source: PHARMACEUTICAL BIOLOGY, 48 (1): 81-88 JAN 2010
Language: English
Author Keywords: Parkia speciosa; seed proteins; hemagglutinating; affinity chromatography
KeyWords Plus: LECTIN; PURIFICATION; INHIBITOR; THAILAND
Abstract: Proteins from Parkia speciosa Hassk. (Fabaceae) seeds were extracted and stepwise precipitated using ammonium
sulfate. Proteins precipitated with 25% ammonium sulfate were separated by affinity chromatography on Affi-Gel Blue gel
followed by protein liquid chromatography on Superdex 200. The protein Gj, which was identified as a protein similar to putative
aristolochene synthase, 3'-partial from Oryza sativa L. (Poaceae), had hemagglutinating activity of 0.39 mu g/mu L. Moreover,
fraction C2 from the proteins precipitated with 60% ammonium sulfate, separated by lectin-specific adsorption chromatography
using Con A Sepharose, had hemagglutinating activity of 1.17 mu g/mu L. Using gel electrophoresis, two proteins C2a and C2b
were separated, having molecular weights of 45 kDa and 23 kDa, respectively. From protein identification, C2a was found to be
similar to the hypothetical protein B1342F01.11 from Oryza sativa, and C2b was similar to the hypothetical protein At1g51560
from Arabidopsis thaliana (L.) Heynh. (Brassicaceae).
Addresses: [Chankhamjon, Kanokwan; Petsom, Amorn; Sawasdipuksa, Narumon; Sangvanich, Polkit] Chulalongkorn Univ, Dept
Chem, Fac Sci, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand; [Petsom, Amorn; Sangvanich, Polkit] Chulalongkorn Univ,
Inst Biotechnol & Genet Engn, Bangkok 10330, Thailand
Reprint Address: Sangvanich, P, Chulalongkorn Univ, Dept Chem, Fac Sci, Res Ctr Bioorgan Chem, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Research Foundation
We thank the Thailand Research Foundation for financial support and Chulalongkorn University for a Graduate Scholarship. The
authors alone are responsible for the writing of this paper.
Times Cited: 0
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ISSN: 1388-0209
DOI: 10.3109/13880200903046195
29-char Source Abbrev.: PHARM BIOL
ISO Source Abbrev.: Pharm. Biol.
Subject Category: Plant Sciences; Medical Laboratory Technology; Pharmacology & Pharmacy
ISI Document Delivery No.: 548UD
Record 250 of 271
Author(s): Kritayakornupong, C (Kritayakornupong, Chinapong); Hannongbua, S (Hannongbua, Supot)
Title: Temperature effects on the structure and dynamics of the Jahn-Teller distorted Cr2+ ion in aqueous solution: a hybrid
QM/MM molecular dynamics simulation
Source: DALTON TRANSACTIONS, 39 (5): 1176-1178 2010
Language: English
KeyWords Plus: AB-INITIO; METAL-COMPLEXES; WATER; DENSITY; SPECTROSCOPY; CHROMIUM(II);
POTENTIALS; EXCHANGE; SPECTRA; EXAFS
Abstract: The influences of an elevated temperature on the structure and dynamics of the Jahn-Teller distorted [Cr(H2O)(6)](2+)
complex have been studied using an ab initio quantum mechanical/molecular mechanical (QM/MM) molecular dynamics
simulation, showing that the increased temperature affects the lifetime distortions of the hydrated Cr2+ ion by decreasing the
inversion time to 0.5-2 ps.
Addresses: [Kritayakornupong, Chinapong] King Mongkuts Univ Technol Thonburi, Dept Chem, Fac Sci, Bangkok 10140,
Thailand; [Hannongbua, Supot] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Kritayakornupong, C, King Mongkuts Univ Technol Thonburi, Dept Chem, Fac Sci, Bangkok 10140, Thailand.
Funding Agency
Grant Number
Financial support for this work by the Thailand Research Fund and Commission on Higher Education are gratefully
acknowledged.
Times Cited: 0
ENGLAND
ISSN: 1477-9226
DOI: 10.1039/b918817g
29-char Source Abbrev.: DALTON TRANS
ISO Source Abbrev.: Dalton Trans.
Subject Category: Chemistry, Inorganic & Nuclear
ISI Document Delivery No.: 548IZ
Record 251 of 271
Author(s): Ananthanawat, C (Ananthanawat, Cheeraporn); Vilaivan, T (Vilaivan, Tirayut); Hoven, VP (Hoven, Voravee P.); Su,
XD (Su, Xiaodi)
Title: Comparison of DNA, aminoethylglycyl PNA and pyrrolidinyl PNA as probes for detection of DNA hybridization using
surface plasmon resonance technique
Source: BIOSENSORS & BIOELECTRONICS, 25 (5): 1064-1069 JAN 15 2010
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Language: English
Author Keywords: Peptide nucleic acid; PNA; Pyrrolidinyl PNA; SPR; DNA sensor; Mismatch discrimination
KeyWords Plus: PEPTIDE NUCLEIC-ACIDS; QUARTZ-CRYSTAL MICROBALANCE; SELF-ASSEMBLED MONOLAYERS;
TOF-SIMS; MOLECULAR RECOGNITION; POINT MUTATION; GOLD SURFACES; IMMOBILIZATION; BINDING;
SPECTROSCOPY
Abstract: Pyrrolidinyl peptide nucleic acid bearing a D-prolyl-2-aminocyclopentanecarboxylic acid backbone (acpcPNA) has
been evaluated as a new sensing probe for detection of DNA hybridization. In this study, the biotinylated acpcPNA was
immobilized on surface plasmon resonance (SPR) sensor chips via biotin-streptavidin interactions for solid-phase DNA
hybridization. A critical comparison between acpcPNA, DNA and conventional peptide nucleic acid (aegPNA) probes of the
same sequence was made by means of SPR on various important aspects. These include the effect of ionic strength on
hybridization efficiency, the specificity to detect the mismatch(es) in target DNAs, the direction of binding (parallel or
antiparallel) to target DNAs, and the effect of target DNA concentration on hybridization efficiency. Results indicated that the
immobilized acpcPNA probe possesses distinct hybridization properties relative to aegPNA (and/or DNA) counterparts.
including a higher single-base mismatch sensitivity, antiparallel selectivity and low ionic strength dependence of target
hybridization. These properties substantiate the acpcPNA applicability as sensor probes for clinical and diagnostic applications.
With a proper selection of regeneration conditions (10 mM NaOH. 2 min exposure), the sensor can be reused for multiple cycles
of hybridization with as little as 1.3% loss in hybridization activity per regeneration cycle. (C) 2009 Elsevier B.V. All rights
reserved.
Addresses: [Vilaivan, Tirayut; Hoven, Voravee P.] Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok
10330, Thailand; [Ananthanawat, Cheeraporn] Chulalongkorn Univ, Fac Sci, Program Macromol Sci, Bangkok 10330, Thailand;
[Su, Xiaodi] Inst Mat Res & Engn, Singapore 117602, Singapore
Reprint Address: Hoven, VP, Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok 10330, Thailand.
Funding Agency
Grant Number
PHD/0192/2550
NN-B-22-b6-10-49-17
Institute of Materials Research and Engineering
Financial support for this work from the Thailand Research Fund through the Royal Golden jubilee Ph.D. Program (Grant No.
PHD/0192/2550) (awarded to CA and VPH), the National Nanotechnology Center (contract number NN-B-22-b6-10-49-17) to
TV and VPH and Institute of Materials Research and Engineering (to XS) are acknowledged.
Times Cited: 1
ISSN: 0956-5663
DOI: 10.1016/j.bios.2009.09.028
& Nanotechnology
ISI Document Delivery No.: 548FT
Record 252 of 271
Author(s): Pradit, S (Pradit, Siriporn); Wattayakorn, G (Wattayakorn, Gullaya); Angsupanich, S (Angsupanich, Saowapa);
Baeyens, W (Baeyens, Willy); Leermakers, M (Leermakers, Martine)
Title: Distribution of Trace Elements in Sediments and Biota of Songkhla Lake, Southern Thailand
Source: WATER AIR AND SOIL POLLUTION, 206 (1-4): 155-174 FEB 2010
Language: English
Author Keywords: Trace metals; Arsenic; Sediments; Fish; Crustacae; Sulfides; Lagoon; Songkhla Lake
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KeyWords Plus: HEAVY-METALS; MARINE-SEDIMENTS; ANOXIC SEDIMENTS; SULFIDE; MATTER; POLYCHAETE;
SPECIATION; BEHAVIOR; LAGOON; FISH
Abstract: The concentrations of Co, Ni, Cu, Zn, Cd, Pb, As, Fe, Mn, and Al were determined in sediments and biota of Songkhla
Lake, a shallow coastal lagoon located in southern Thailand. In June 2006, surface sediments were sampled in 44 stations in the
three sections of the lake (inner-, middle-, and outer sections). Sediment cores were also sampled in 13 stations in three crosssections of the lake. In surface sediments, trace and major elements, organic matter, sediment grain size analysis, and sulfides
were determined, and in the sediment cores, redox profiles were made. Soil samples were also collected at garbage dumping sites
in the vicinity of the lake. In addition, the metal accumulation in two catfish species (Arius maculatus and Osteogeneiosus
militaris) and the crustacean (Apseudes sapensis) was also investigated. Trace element concentrations in sediments of Songkhla
Lake show that, especially the Outer section of the lake, in particular the sediments at the mouths of the Phawong, U-Taphao, and
Samrong Canals are significantly enriched with trace elements due to municipal, agricultural, and industrial discharges entering
the lake through the canals. Aluminum-normalized enrichment factors throughout the lake vary from 0.4 to 1.7 for Ni, 0.3 to 3.3 for
Cu, 0.2 to 7 for Zn, 0.1 to 14 for As, 1 to 24 for Cd, 0.7 to 6.8 for Pb, and 0.1 to 7.8 for Mn. Correlations between the elements
and sediment characteristics show that Cu, Zn, Cd, and Pb are essentially associated with the sulfide fraction; that Ni and Co are
predominantly bound to the clay minerals and iron oxy-hydroxides, and that As is principally bound to iron oxy-hydroxides. The
accumulation of trace elements between muscle tissue and liver and eggs of A. maculatus and O. militaris is element-specific, but
concentrations of trace elements in fish muscle tissue are well within the limits for human consumption.
Addresses: [Pradit, Siriporn; Baeyens, Willy; Leermakers, Martine] Vrije Univ Brussels, Lab Analyt & Environm Chem, B-1050
Brussels, Belgium; [Wattayakorn, Gullaya] Chulalongkorn Univ, Dept Marine Sci, Fac Sci, Bangkok 10330, Thailand;
[Angsupanich, Saowapa] Prince Songkla Univ, Dept Aquat Sci, Fac Nat Resources, Hat Yai 90112, Thailand
Reprint Address: Leermakers, M, Vrije Univ Brussels, Lab Analyt & Environm Chem, Pl Laan 2, B-1050 Brussels, Belgium.
Funding Agency
Grant Number
Flemish Interuniversity Council (VLIR) in Belgium
The work described in this paper is supported by a Ph.D. Scholarship from the Flemish Interuniversity Council (VLIR) in
Belgium. I would like to thank Dr. Charumas Meksumpan for advice on TAVS analysis, Yue Gao for assistance in lab work in
Belgium, and Sakya Pradit for his assistance in the fieldwork and lab work in Thailand.
Times Cited: 1
Publisher: SPRINGER
ISSN: 0049-6979
DOI: 10.1007/s11270-009-0093-x
29-char Source Abbrev.: WATER AIR SOIL POLLUT
ISO Source Abbrev.: Water Air Soil Pollut.
Subject Category: Environmental Sciences; Meteorology & Atmospheric Sciences; Water Resources
Record 253 of 271
Author(s): Matsui, M (Matsui, Masafumi); Tominaga, A (Tominaga, Atsushi); Liu, WZ (Liu, Wanzhao); Khonsue, W (Khonsue,
Wichase); Grismer, LL (Grismer, Lee L.); Diesmos, AC (Diesmos, Arvin C.); Das, I (Das, Indraneil); Sudin, A (Sudin, Ahmad);
Yambun, P (Yambun, Paul); Yong, HIS (Yong, Hoisen); Sukumaran, J (Sukumaran, Jeet); Brown, RM (Brown, Rafe M.)
Title: Phylogenetic relationships of Ansonia from Southeast Asia inferred from mitochondrial DNA sequences: Systematic and
biogeographic implications (Anura: Bufonidae)
Source: MOLECULAR PHYLOGENETICS AND EVOLUTION, 54 (2): 561-570 FEB 2010
Language: English
Author Keywords: Ansonia; Southeast Asia; Borneo; mtDNA; Phylogenetics; Speciation
KeyWords Plus: TAXONOMIC RELATIONSHIPS; AMPHIBIA; FROGS; GENUS; TOADS; CAUDATA; RANIDAE; STREAM;
GENES; MODEL
Abstract: We investigated the phylogenetic relationships and estimated the history of species diversification and biogeography in
the bufonid genus Ansonia from Southeast Asia, a unique organism with tadpoles adapted to life in strong currents chiefly in
montane regions and also in lowland rainforests. We estimated phylogenetic relationships among 32 named and unnamed taxa
using 2461 by sequences of the mitochondrial 125 rRNA, tRNA(val), and 165 rRNA genes with equally-weighted parsimony,
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maximum likelihood, and Bayesian methods of inference. Monophyletic clades of Southeast Asian members of the genus Ansonia
are well-supported g, allowing for the interpretation of general biogeographic conclusions. The genus is divided into two major
clades. One of these contains two reciprocally monophyletic subclades, one from the Malay Peninsula and Thailand and the other
from Borneo. The other major clade primarily consists of Bornean taxa but also includes a monophyletic group of two Philippine
species and a single peninsular Malaysian species. We estimated absolute divergence times using Bayesian methods with external
calibration points to reconstruct the relative timing of faunal exchange between the major landmasses of Southeast Asia. Crown
Copyright (C) 2009 Published by Elsevier Inc. All rights reserved.
Addresses: [Matsui, Masafumi; Tominaga, Atsushi; Liu, Wanzhao] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto
6068501, Japan; [Tominaga, Atsushi] Univ Ryukyus, Trop Biosphere Res Ctr, Okinawa 9010213, Japan; [Tominaga, Atsushi] Natl
Inst Environm Studies, Invas Alien Species Res Team, Tsukuba, Ibaraki 3058506, Japan; [Liu, Wanzhao] Univ Massachusetts, Sch
Med, Dept Med, Worcester, MA 01605 USA; [Khonsue, Wichase] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330,
Thailand; [Grismer, Lee L.] La Sierra Univ, Dept Biol, Riverside, CA 92515 USA; [Diesmos, Arvin C.] Natl Univ Singapore,
Conservat Ecol Lab, Singapore 117543, Singapore; [Das, Indraneil] Univ Malaysia Sarawak, Inst Biodivers & Environm
Conservat, Kota Samarahan 94300, Sarawak, Malaysia; [Sudin, Ahmad] Univ Malaysia Sabah, Inst Trop Biol & Conservat, Kota
Kinabalu 88999, Sabah, Malaysia; [Yambun, Paul] Div Res & Educ, Kota Kinabalu 88806, Sabah, Malaysia; [Yong, Hoisen]
Univ Malaya, Dept Zool, Kuala Lumpur 59100, Malaysia; [Sukumaran, Jeet; Brown, Rafe M.] Univ Kansas, Nat Hist Museum,
Lawrence, KS 66045 USA; [Sukumaran, Jeet; Brown, Rafe M.] Univ Kansas, Dept Ecol & Evolutionary Biol, Lawrence, KS
66045 USA; [Sukumaran, Jeet; Brown, Rafe M.] Univ Kansas, Biodivers Res Ctr, Lawrence, KS 66045 USA
Monbusho
01041051
02041051
03041044
06041066
08041144
10041166
15370038
TJTTP-OECF
M.M. is grateful to the following for their encouragements and/or permission to conduct research and field companionship: H.
Akiyama, L. Apin, K. Araya, A.-A. Hamid, T. Hikida, H. Ota, H. Kassim, J.J. Kendawong, K.B. Kueh, T. Kusano, D. Labang,
M.B. Lakim, M. Maryati, the late J. Nabitabhata, S. Panha, L.-H. Seng, T. Sugahara, T. Tachi, M. Toda, and N.-S. Wong. M.M.
is also indebted to N. Kuraishi, T. Shimada and T. Tanaka-Ueno for laboratory assistance. The National Research Council of
Thailand, the Royal Forest Department of Thailand, the Economic-Planning Unit (former Socio-Economic Research Unit) of
Malaysia, the State Government of Sarawak, and Sabah Parks kindly permitted M.M. to conduct the project, and Universiti
Malaysia Sabah, JICA, and the Forest Department, Sarawak kindly provided all the facilities for conducting research. Field
trips by M.M. were made possible by grants from The Monbusho (Field Research, Nos. 01041051, 02041051, 03041044,
06041066, 08041144, 10041166, and 15370038) and TJTTP-OECF. Part of works by A.T. was done under the 21 st Century
COE program of the University of the Ryukyus (to H. Ota). R.M.B. and A.C.D. thank the Protected Areas and Wildlife Bureau
(PAWB) of the Philippine Department of Environment and Natural Resources (DENR) for facilitating collecting and export
permits necessary for this and related studies. Financial support for R.M.B.'s fieldwork was provided by the Society of
Systematic Biologists, the US National Science Foundation, the Society for the Study of Amphibians and Reptiles, the American
Society of Ichthyologists and Herpetologists, and the University of Kansas. A.C.D.'s fieldwork was supported by the National
Museum of the Philippines, the National University of Singapore, and the Ford Foundation. ID thanks the Institute of
Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak for supporting his research and S.b. Othman, B.-L.
Lim, J. Nais, M. Lakim, and Datuk C. El for permission and facilities. K.K.P. Lim provided catalog numbers for specimens.
Times Cited: 3
ISSN: 1055-7903
DOI: 10.1016/j.ympev.2009.08.003
29-char Source Abbrev.: MOL PHYLOGENET EVOL
ISO Source Abbrev.: Mol. Phylogenet. Evol.
Subject Category: Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity
ISI Document Delivery No.: 545SX
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Record 254 of 271
Author(s): Rashatasakhon, P (Rashatasakhon, Paitoon); Jaiyu, A (Jaiyu, Arisa); Rojanathanes, R (Rojanathanes, Rojrit);
Muangsin, N (Muangsin, Nongnuj); Chaichit, N (Chaichit, Narongsak); Sukwattanasinitt, M (Sukwattanasinitt, Mongkol)
Title: X-ray guided H-1 NMR analysis of pinched cone calix[4]arenes
Source: JOURNAL OF MOLECULAR STRUCTURE, 963 (1): 22-26 JAN 15 2010
Language: English
Author Keywords: Azobenzene; Calix[4]arene; Conformation; Host-guest complex; Isomerization; NMR spectroscopy
KeyWords Plus: MECHANICAL MOLECULAR-MODELS; CROWN-ETHER; LOWER RIM; STILBENE; RECOGNITION;
CALIXARENES; CONFORMERS; CALIX<4>ARENES; 1,3-ALTERNATE; CONFORMATION
Abstract: The analysis of structural parameters of azobenzene- and stilbene-bridged calix[4]arene obtained from AM1
calculation are in good agreement with those obtained from X-ray crystallography. The bridge longer than 9.0 angstrom such as
p,p-trans-azobenzene and p,p-trans-stilbene cannot be constructed over the narrow rim of calix[4]arene through two ethylene
oxide linkers. The in,m-stilbene bridge is the most promising photo switch because its shorter cis stereoisomer (5.85 angstrom)
allows calix[4]arene to assume the perfect cone conformation, whilst its longer trans stereoisomer (8.00 angstrom) forces
calix[4]arene to adapt a pinched cone conformation. The pinched cone conformation has longer distances between the
neighbouring phenoxyl groups causing the weaker intramolecular hydrogen bonding and the upfield shifts of the phenolic proton
signals to below 7.00 ppm. This upfield shift is useful for quick identification of pinched cone conformation of new calix[4]arene
compounds. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Rashatasakhon, Paitoon; Jaiyu, Arisa; Rojanathanes, Rojrit; Muangsin, Nongnuj; Sukwattanasinitt, Mongkol]
Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Bangkok 10330, Thailand; [Chaichit, Narongsak] Thammasat
Univ Rangsit, Dept Chem, Fac Sci, Pathum Thani 12121, Thailand; [Sukwattanasinitt, Mongkol] Chulalongkorn Univ, Ctr Petr
Reprint Address: Sukwattanasinitt, M, Chulalongkorn Univ, Fac Sci, Dept Chem, Organ Synth Res Unit, Phyathai Rd, Bangkok
10330, Thailand.
Funding Agency
Grant Number
Commission of Higher Education
This work was financially supported by the Thailand Research Fund (TRF) and the Commission of Higher Education.
Times Cited: 0
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2009.09.039
29-char Source Abbrev.: J MOL STRUCT
ISO Source Abbrev.: J. Mol. Struct.
ISI Document Delivery No.: 547PK
Record 255 of 271
Author(s): Glazov, EA (Glazov, Evgeny A.); Horwood, PF (Horwood, Paul F.); Assavalapsakul, W (Assavalapsakul, Wanchai);
Kongsuwan, K (Kongsuwan, Kritaya); Mitchell, RW (Mitchell, Roger W.); Mitter, N (Mitter, Neena); Mahony, TJ (Mahony,
Timothy J.)
Title: Characterization of microRNAs encoded by the bovine herpesvirus 1 genome
Source: JOURNAL OF GENERAL VIROLOGY, 91: 32-41 Part 1 JAN 2010
Language: English
KeyWords Plus: VIRUS TYPE-1 ORIS; DEPENDENT DNA-REPLICATION; RNA SECONDARY STRUCTURE; TIME
QUANTITATIVE PCR; GENE-EXPRESSION; GLYCOPROTEIN-C; CYTOMEGALOVIRUS; INFECTION; ORIGIN;
IDENTIFICATION
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Abstract: Bovine herpesvirus 1 (BoHV-1) is a ubiquitous and important pathogen of cattle worldwide. This study reports the
identification of 10 microRNA (miRNA) genes, Bhv1-mir-B1-Bhv1-mir-B10, encoded by the BoHV-1 genome that were
processed into 12 detectable mature miRNAs as determined by ultra-high throughput sequencing bioinformatics; analyses of small
RNA libraries and expression studies. We found that four of the miRNA genes were present as two copies in the BoHV-1 genome,
resulting in a total of 14 miRNA encoding loci. Unique features of the BoHV-1 miRNAs; include evidence of bidirectional
transcription and a close association of two miRNA genes with the origin of replication, including one miRNA that is encoded
within the origin of replication. The miRNA gene Bhv1-mir-B5 was encoded on the opposite DNA strand to the latency associated
transcript, potentially giving rise to antisense transcripts originating from this locus. The association of herpesvirus miRNAs with
latency appears to be a common feature in the alphaherpesviruses. Analyses of the BoHV-5 genome for putative miRNA gene
orthologues; identified a high degree of evolutionary conservation for nine of the BoHV-1 miRNA genes. The possible roles for
BoHV-1 miRNAs in the regulation of known BoHV-1 transcription units and the genetics of the BoHV-1 genotypes are also
discussed.
Addresses: [Horwood, Paul F.; Mitchell, Roger W.; Mitter, Neena; Mahony, Timothy J.] Univ Queensland, Queensland Agr
Biotechnol Ctr, Brisbane, Qld 4072, Australia; [Glazov, Evgeny A.] Univ Queensland, Diamantina Inst Canc Immunol & Metab
Med, Princess Alexandra Hosp, Woolloongabba, Qld 4072, Australia; [Assavalapsakul, Wanchai] CSIRO Livestock Ind, St Lucia,
Qld 4072, Australia; [Assavalapsakul, Wanchai; Kongsuwan, Kritaya] Chulalongkorn Univ, Dept Microbiol, Fac Sci, Bangkok
10330, Thailand
Reprint Address: Mahony, TJ, Univ Queensland, Queensland Agr Biotechnol Ctr, Ritchie Bldg,Res Rd, Brisbane, Qld 4072,
Australia.
Funding Agency
Grant Number
Queensland Primary Industries and Fisheries
University of Queensland Early Career Research
Australian Government
This work was supported by the Queensland Primary Industries and Fisheries. E. A. G. is Supported by University of
Queensland Early Career Research Grant Scheme. W. A. was a recipient of an Endeavour Research Fellowship from the
Australian Government.
Times Cited: 1
ENGLAND
ISSN: 0022-1317
DOI: 10.1099/vir.0.014290-0
29-char Source Abbrev.: J GEN VIROL
ISO Source Abbrev.: J. Gen. Virol.
Subject Category: Biotechnology & Applied Microbiology; Virology
ISI Document Delivery No.: 546BM
Record 256 of 271
Author(s): Wacharasindhu, S (Wacharasindhu, Sumrit); Montha, S (Montha, Suriyakamon); Boonyiseng, J (Boonyiseng, Jasuma);
Potisatityuenyong, A (Potisatityuenyong, Anupat); Phollookin, C (Phollookin, Chaiwat); Tumcharern, G (Tumcharern, Gamolwan);
Sukwattanasinitt, M (Sukwattanasinitt, Mongkol)
Title: Tuning of Thermochromic Properties of Polydiacetylene toward Universal Temperature Sensing Materials through Amido
Hydrogen Bonding
Source: MACROMOLECULES, 43 (2): 716-724 JAN 26 2010
Language: English
KeyWords Plus: INDUCED CHROMATIC TRANSITION; LANGMUIR-BLODGETT-FILMS; COLORIMETRIC DETECTION;
SUBSTITUTED POLYDIACETYLENES; CONJUGATED POLYMER; ACID MONOLAYERS; THIN-FILMS; VESICLES;
DIACETYLENE; COLOR
46 of 59
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Abstract: Mono- and diamides derivatives of 10,12-pentacosadiynoic acid (PCDA) were synthesized from condensation of
PCDA with various aliphatic and aromatic diamines. Polydiacetylenes of the amido-PCDA derivatives were prepared by
photopolymerization of their molecular assembly homogeneously dispersed in aqueous media. Thermochromic properties of the
resulting polydiacetylene so were studied by temperature variable UV-vis spectrometry along with photographic recording. The
color transition temperatures and thermochromic reversibility of the polymers are varied depended on the number of amide groups
and the structure of the aliphatic and aromatic linkers. The phenylenediamide and polymethylenediamide PCDA derivatives give
polydiacetylenes with complete thermochromic reversibility, while the polydiacetylenes obtained from 1,2-cyclohexylene and
glycolic chain diamide derivatives exhibited irreversible thermochromism, whereas the polymers attained from the aromatic
monoamide analogues are partially reversible. The variation of the linkers also allows the color transition temperature of the
polydiacetylene to be tuned in the range of 20 degrees C to over 90 degrees C. The results provide a fundamental idea about the
factors affecting the thermochromic properties of polydiacetylenes toward the development of materials for universal thermal
indicators.
Addresses: [Wacharasindhu, Sumrit; Potisatityuenyong, Anupat; Phollookin, Chaiwat; Sukwattanasinitt, Mongkol] Chulalongkorn
Univ, Organ Synth Res Unit, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Montha, Suriyakamon; Boonyiseng, Jasuma]
Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci, Bangkok, Thailand; [Tumcharern, Gamolwan] Natl Sci &
Technol Dev Agcy, Thailand Natl Nanotechnol Ctr, Patumthanee 12120, Thailand
Thailand.
Funding Agency
Grant Number
National Nanotechnology Center, National Science and Technology Development Agency (NANOTEC,
NSTDA)
DIG 5180020
This Study wits financially supported by the grants from National Nanotechnology Center, National Science and Technology
Development Agency (NANOTEC, NSTDA), and the Thailand Research Fund (DIG 5180020). We also thank Center for
Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University and the 90th Anniversary of Chulalongkorn
University Fund (Ratchadaphiseksomphot Endowment Fund) for Student scholarships.
Times Cited: 3
ISSN: 0024-9297
DOI: 10.1021/ma902282c
29-char Source Abbrev.: MACROMOLECULES
ISO Source Abbrev.: Macromolecules
ISI Document Delivery No.: 543YQ
Record 257 of 271
Author(s): Nuanyai, T (Nuanyai, Thanesuan); Chokpaiboon, S (Chokpaiboon, Sipichar); Vilaivan, T (Vilaivan, Tirayut); Pudhom,
K (Pudhom, Khanitha)
Title: Cytotoxic 3,4-seco-Cycloartane Triterpenes from the Exudate of Gardenia tubifera
Source: JOURNAL OF NATURAL PRODUCTS, 73 (1): 51-54 JAN 2010
Language: English
KeyWords Plus: SECO-CYCLOARTANE TRITERPENES; ANTI-HIV-1 CONSTITUENTS; CHEMOSENSITIVITY;
SOOTEPENSIS; LEAVES; TWIGS; ASSAY
Abstract: Four new 3,4-seco-cycloartanes, gardenoins A-D (1-4), together with the known compound secaubryenol (5), were
isolated from the exudate of Gardenia tubifera. The structures Of 1-4 were elucidated on the basis of spectroscopic analysis. The
cytotoxic activity of compounds 1-4 was, evaluated against five human tumor cell lines.
Addresses: [Nuanyai, Thanesuan; Vilaivan, Tirayut; Pudhom, Khanitha] Chulalongkorn Univ, Fac Sci, Dept Chem, Res Ctr
Bioorgan Chem, Bangkok 10330, Thailand; [Nuanyai, Thanesuan; Pudhom, Khanitha] Chulalongkorn Univ, Ctr Excellence Petr
Petrochem & Adv Mat, Bangkok 10330, Thailand; [Chokpaiboon, Sipichar] Chulalongkorn Univ, Fac Sci, Program Biotechnol,
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Times Cited: 0
ISSN: 0163-3864
DOI: 10.1021/np900658t
ISI Document Delivery No.: 544JY
Record 258 of 271
Author(s): Kaenkaew, S (Kaenkaew, Saowapak); Sae-Khow, O (Sae-Khow, Ornchuree); Ruangpornvisuti, V (Ruangpornvisuti,
Vithaya)
Title: Cation recognition of thiacalix[2]thianthrene and p-tert-butylthiacalix[2] thianthrene and their conformers and complexes
with Zn(II), Cd(II) and Hg(II): a theoretical investigation
Source: JOURNAL OF MOLECULAR MODELING, 16 (2): 243-253 FEB 2010
Language: English
Author Keywords: Thiacalix[2]thianthrenes; p-Tert-butylthiacalix[2]thianthrene; Zinc; Cadmium; Mercury; Cation recognition;
Quantum chemical calculations
KeyWords Plus: EFFECTIVE CORE POTENTIALS; MOLECULAR CALCULATIONS; PROTON AFFINITY; DENSITY;
COORDINATION; RECEPTORS; ELEMENTS; ONIOM
Abstract: The structures of thiacalix[2] thianthrene, p-tert-butylthiacalix[2] thianthrene and their complexes with Zn2+, Cd2+ and
Hg2+ were obtained using B3LYP/LanL2DZ and HF/LanL2DZ calculations. The structures of the most stable conformers of
thiacalix[2] thianthrene and p-tertbutylthiacalix[2] thianthrene optimized at either the B3LYP/LanL2DZ or HF/LanL2DZ level are
in good agreement with their corresponding X-ray crystallographic structures. The binding energies of cations, Zn2+, Cd2+ and
Hg2+ to thiacalix[2] thianthrene and to p-tert-butylthiacalix [2] thianthrene conformers, and the thermodynamic properties of their
associations were obtained. The relative selectivities of both thiacalix[2] thianthrene and thiacalix [2] thianthrene conformer are
in same order: Zn2+ >> Hg2+ > Cd2+.
Addresses: [Kaenkaew, Saowapak; Sae-Khow, Ornchuree; Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Fac Sci, Dept Chem,
Bangkok 10330, Thailand; [Kaenkaew, Saowapak; Sae-Khow, Ornchuree; Ruangpornvisuti, Vithaya] Chulalongkorn Univ, Ctr
Petr Petrochem & Adv Mat, Bangkok 10330, Thailand
Funding Agency
Grant Number
The Thailand Research Fund (TRF)
The financial support of the Faculty of Science, Chulalongkorn University to S.K. and O.S. is acknowledged. The Thailand
Research Fund (TRF) and the National Nanotechnology Center (NANOTEC), National Science and Technology Development
Agency, Thailand are gratefully acknowledged for partial support of our MMCCRG laboratory. We would like to thank Miss
Raina Wanbayor for her help.
Times Cited: 0
Publisher: SPRINGER
ISSN: 1610-2940
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DOI: 10.1007/s00894-009-0536-8
29-char Source Abbrev.: J MOL MODEL
ISO Source Abbrev.: J. Mol. Model.
Subject Category: Biochemistry & Molecular Biology; Biophysics; Chemistry, Multidisciplinary; Computer Science,
Interdisciplinary Applications
ISI Document Delivery No.: 544OW
Record 259 of 271
Author(s): Samingprai, S (Samingprai, Sutheerawat); Tantayanon, S (Tantayanon, Supawan); Ma, YH (Ma, Yi Hua)
Title: Chromium oxide intermetallic diffusion barrier for palladium membrane supported on porous stainless steel
Source: JOURNAL OF MEMBRANE SCIENCE, 347 (1-2): 8-16 FEB 1 2010
Language: English
Author Keywords: Intermetallic diffusion barrier; Electroless plating; Palladium membrane; Chromium oxide
KeyWords Plus: COMPOSITE MEMBRANES; HYDROGEN SEPARATION; PARTIAL OXIDATION; METHANE; REACTOR;
CATALYSTS; SYNGAS; CONVERSION; ZIRCONIA
Abstract: Dense palladium membrane on oxidized porous stainless steel (oxPSS) tube was prepared. Its hydrogen permeance
was observed to decline at the temperature higher than 400 degrees C. SEM-EDX analysis of the cross-section of the annealed
tube at 500 degrees C indicated the occurrence of the intermetallic diffusion. The heat treatment study of the palladium membrane
on oxPSS disks in hydrogen atmosphere at various temperatures was essentially carried out. Their SEM-EDX analysis results
confirmed that the in situ metal oxide barrier could not inhibit the intermetallic diffusion in hydrogen atmosphere. The chromium
oxide layers at different thicknesses were then developed on oxPSS disks before palladium plating by controlled chromium
elctrodeposition followed by oxidation in air at 700 degrees C. The similar heat treatment study and SEM-EDX analysis of these
disks revealed that the presence of chromium oxide layer could suppress the intermetallic diffusion. Then, the dense palladium
membrane tube with chromium oxide layer was prepared and its heat treatment in hydrogen atmosphere was studied. The result
showed the steady increase in hydrogen permeance with increasing temperature. (C) 2009 Elsevier B.V. All rights reserved.
Addresses: [Tantayanon, Supawan] Chulalongkorn Univ, Fac Sci, Dept Chem, Green Chem Res Lab, Bangkok 10330, Thailand;
[Samingprai, Sutheerawat] Chulalongkorn Univ, Fac Sci, Grad Program Petrochem, Bangkok 10330, Thailand; [Tantayanon,
Supawan] Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem & Adv Mat, Bangkok 10330, Thailand; [Ma, Yi Hua]
Worcester Polytech Inst, Dept Chem Engn, Worcester, MA 01609 USA
Reprint Address: Tantayanon, S, Chulalongkorn Univ, Fac Sci, Dept Chem, Green Chem Res Lab, Bangkok 10330, Thailand.
Times Cited: 0
ISSN: 0376-7388
DOI: 10.1016/j.memsci.2009.09.058
29-char Source Abbrev.: J MEMBRANE SCI
ISO Source Abbrev.: J. Membr. Sci.
Subject Category: Engineering, Chemical; Polymer Science
ISI Document Delivery No.: 544MU
Record 260 of 271
Author(s): Luengwilai, K (Luengwilai, Kietsuda); Tananuwong, K (Tananuwong, Kanitha); Shoemaker, CF (Shoemaker, Charles
F.); Beckles, DM (Beckles, Diane M.)
Title: Starch Molecular Structure Shows Little Association with Fruit Physiology and Starch Metabolism in Tomato
Source: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 58 (2): 1275-1282 JAN 27 2010
Language: English
Author Keywords: Tomato; starch structure; starch properties; starch biosynthesis
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KeyWords Plus: RICE STARCH; GRANULE; WHEAT; ACCUMULATION; ARABIDOPSIS; HYDROLYSIS; BEHAVIOR;
MUTANTS; SUCROSE; WEIGHT
Abstract: The aim of this work was to determine if the molecular structure of starch from tomato (Solarium lycopersicum L.) is
influenced by fruit physiology and carbohydrate metabolism. The effect of fruit size, fruit ripening behavior, and assimilate
availability on starch granule accumulation was examined in nine tomato samples. The percentage of C-14-glucose partitioning to
starch was similar among samples, but starch contents varied 10-fold, suggesting differences in metabolism. In contrast, granule
size (10-20 mu m), amylose content (19-23%), degree of crystallinity (26-31%), and enthalpy of gelatinization (14.8-17.2 degrees
C) were similar. Some differences in structure were detected in starch from the largest and smallest fruit using more sensitive
analyses such as thermal properties, chain length distribution of amylopectin, and susceptibility to in vitro a-amylase digestion.
However, overall, our results suggest that granule characteristics are highly conserved in tomato fruit, and we conclude that this is
likely due to inherent metabolic constraints.
Addresses: [Luengwilai, Kietsuda; Beckles, Diane M.] Univ Calif Davis, Dept Plant Sci MS 3, Davis, CA 95616 USA;
[Luengwilai, Kietsuda] Univ Calif Davis, Dept Food Sci, Davis, CA 95616 USA; [Tananuwong, Kanitha] Chulalongkorn Univ,
Dept Food Technol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Beckles, DM, Univ Calif Davis, Dept Plant Sci MS 3, 1 Shields Ave, Davis, CA 95616 USA.
Funding Agency
Grant Number
Anandamahidol Foundation
National Science Foundation MCB-0620001
France Berkeley Fund Award
Hatch Projects
CA-Dstar-PLS-7198-H
CA-Dstar-PLS-7821-H
The Anandamahidol Foundation supported K.L. This work was funded by National Science Foundation Grant MCB-0620001,
France Berkeley Fund Award, and Hatch Projects CA-Dstar-PLS-7198-H and CA-Dstar-PLS7821-H to D.M.B.
Times Cited: 0
ISSN: 0021-8561
DOI: 10.1021/jf9032393
29-char Source Abbrev.: J AGR FOOD CHEM
ISO Source Abbrev.: J. Agric. Food Chem.
ISI Document Delivery No.: 544PV
Record 261 of 271
Author(s): Sagarik, K (Sagarik, Kritsana); Chaiwongwattana, S (Chaiwongwattana, Sermsiri); Vchirawongkwin, V
(Vchirawongkwin, Viwat); Prueksaaroon, S (Prueksaaroon, Supakit)
Title: Proton transfer reactions and dynamics in CH3OH-H3O+-H2O complexes
Source: PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 12 (4): 918-929 2010
Language: English
KeyWords Plus: TEST-PARTICLE MODEL; INITIO MOLECULAR-DYNAMICS; BENZOIC ACID-WATER; AB-INITIO;
VIBRATIONAL-SPECTRA; LIQUID METHANOL; HYDRATED PROTON; ELEMENTARY REACTIONS; AQUEOUSSOLUTIONS; EXCESS PROTON
Abstract: Proton transfer reactions and dynamics in hydrated complexes formed from CH3OH, H3O+ and H2O were studied
using theoretical methods. The investigations began with searching for equilibrium structures at low hydration levels using the
DFT method, from which active H-bonds in the gas phase and continuum aqueous solution were characterized and analyzed.
Based on the asymmetric stretching coordinates (Delta dDA), four H-bond complexes were identified as potential transition
states, in which the most active unit is represented by an excess proton nearly equally shared between CH3OH and H2O. These
cannot be definitive due to the lack of asymmetric O-H stretching frequencies (nOH) which are spectral signatures of transferring
protons. Born-Oppenheimer molecular dynamics (BOMD) simulations revealed that, when the thermal energy fluctuations and
dynamics were included in the model calculations, the spectral signatures at nu(OH) approximate to 1000 cm(-1) appeared. In
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continuum aqueous solution, the H-bond complex with incomplete water coordination at charged species turned out to be the only
active transition state. Based on the assumption that the thermal energy fluctuations and dynamics could temporarily break the
H-bonds linking the transition state complex and water molecules in the second hydration shell, elementary reactions of proton
transfer were proposed. The present study showed that, due to the coupling among various vibrational modes, the discussions on
proton transfer reactions cannot be made based solely on static proton transfer potentials. Inclusion of thermal energy fluctuations
and dynamics in the model calculations, as in the case of BOMD simulations, together with systematic IR spectral analyses, have
been proved to be the most appropriate theoretical approaches.
Addresses: [Sagarik, Kritsana; Chaiwongwattana, Sermsiri] Suranaree Univ Technol, Inst Sci, Sch Chem, Nakhon Ratchasima
30000, Thailand; [Vchirawongkwin, Viwat] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10500, Thailand; [Prueksaaroon,
Supakit] NECTEC, Pathum Thani 12120, Thailand
Reprint Address: Sagarik, K, Suranaree Univ Technol, Inst Sci, Sch Chem, Nakhon Ratchasima 30000, Thailand.
Funding Agency
Grant Number
Thailand Research Fund (TRF) BRG5180022
Royal Golden Jubilee (RGJ)
PHD/0071/2547
The authors would like to acknowledge the financial supports from the Thailand Research Fund (TRF): the Advanced Research
Scholarship, Grant No. BRG5180022 to Prof. Kritsana Sagarik; the Royal Golden Jubilee (RGJ) PhD Program, Grant No.
PHD/0071/2547 to Sermsiri Chaiwongwattana and Prof. Kritsana Sagarik. Linux clusters provided by the following
organizations are also gratefully acknowledged: School of Mathematics and School of Chemistry, SUT; National Electronics
and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA); the Thai
National Grid Center (THAIGRID), Ministry of Information and Communication Technology.
Times Cited: 0
ENGLAND
ISSN: 1463-9076
DOI: 10.1039/b913385b
29-char Source Abbrev.: PHYS CHEM CHEM PHYS
ISO Source Abbrev.: Phys. Chem. Chem. Phys.
ISI Document Delivery No.: 542TB
Record 262 of 271
Author(s): Yang, M (Yang, Mei); Arai, C (Arai, Chika); Md, AB (Md, Abu Bakar); Lu, J (Lu, Jun); Ge, JF (Ge, Jian-Feng);
Pudhom, K (Pudhom, Khanitha); Takasu, K (Takasu, Kiyosei); Kasai, K (Kasai, Kazuki); Kaiser, M (Kaiser, Marcel); Brun, R
(Brun, Reto); Yardley, V (Yardley, Vanessa); Itoh, I (Itoh, Isamu); Ihara, M (Ihara, Masataka)
Title: Fluorinated Rhodacyanine (SJL-01) Possessing High Efficacy for Visceral Leishmaniasis (VL)
Source: JOURNAL OF MEDICINAL CHEMISTRY, 53 (1): 368-373 JAN 14 2010
Language: English
KeyWords Plus: IN-VITRO; DYES
Abstract: Anti-Leishmania in vitro and in vivo activities of various rhodacyanine derivatives have been examined. Among them,
the fluorinatied variant SJL-01 (8) showed IC50 OfO-01 I PM against Lcishniania (Ionovani strain MHOM/ET/67/1_82
(selective index of > 15000) and 95-97% inhibition against L. clonovani strain MHOM/ET/67/HIJ in fernale BALB/c mice by
1.3-12.5 mg/kg x 5 iv administrations. Negative results on chromosonial aberration test and in vitro micronucleus test Suggest that
compound 8 is a hopeful candidate for visceral leislinianiasis (VIL).
Addresses: [Yang, Mei; Arai, Chika; Md, Abu Bakar; Lu, Jun; Ge, Jian-Feng; Pudhom, Khanitha; Ihara, Masataka] Hoshi Univ,
Drug Discovery Sci Res Ctr, Tokyo 1428501, Japan; [Ge, Jian-Feng] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou
215006, Peoples R China; [Pudhom, Khanitha] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand; [Takasu,
Kiyosei; Kasai, Kazuki] Tohoku Univ, Grad Sch Pharmaceut Sci, Sendai, Miyagi 9808578, Japan; [Kaiser, Marcel; Brun, Reto]
Swiss Trop Inst, CH-4002 Basel, Switzerland; [Yardley, Vanessa] Univ London London Sch Hyg & Trop Med, Dept Infect & Trop
Med, London WC1E 7HT, England; [Itoh, Isamu] Synstar Japan Co Ltd, Midori Ku, Yokohama, Kanagawa 2268510, Japan
Reprint Address: Ihara, M, Hoshi Univ, Drug Discovery Sci Res Ctr, 2-4-41 Ebara, Tokyo 1428501, Japan.
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Times Cited: 2
ISSN: 0022-2623
DOI: 10.1021/jm9013086
29-char Source Abbrev.: J MED CHEM
ISO Source Abbrev.: J. Med. Chem.
Subject Category: Chemistry, Medicinal
ISI Document Delivery No.: 539PL
Record 263 of 271
Author(s): Vchirawongkwin, V (Vchirawongkwin, Viwat); Pribil, AB (Pribil, Andreas B.); Rode, BM (Rode, Bernd M.)
Title: Ab Initio Quantum Mechanical Charge Field Study of Hydrated Bicarbonate Ion: Structural and Dynamical Properties
Source: JOURNAL OF COMPUTATIONAL CHEMISTRY, 31 (2): 249-257 JAN 30 2010
Language: English
Author Keywords: QM/MM MD simulation; QMCF simulation; bicarbonate ion
KeyWords Plus: MOLECULAR-DYNAMICS; AQUEOUS-SOLUTION; BASIS-SETS; CATALYTIC MECHANISM; SODIUM
BICARBONATE; CARBONIC-ANHYDRASE; QMCF MD; WATER; SIMULATIONS; HYDROGEN
Abstract: The ab initio quantum Mechanical charge field molecular dynamics (QMCF MD) formalism was applied to simulate
the bicarbonate ion, HCO3-. in aqueous solution. The difference in coordination numbers obtained by summation over atoms (6.6)
and for the solvent-accessible Surface (5.4) indicates the sharing of sortie water molecules between the individual atomic
hydration shells. It also proved the importance to consider the hydration of the chemically different atoms individually for the
evaluation of structural and dynamical properties of the ion. The orientation of water molecules in the hydration shell was
visualized by the theta-tilt Surface plot. The mean residence time in the Surroundings of the HCO3- ion classify it generally as a
structure-breaking ion, but the analysis of the individual ion-water hydrogen bonds revealed a more complex behavior of the
different coordination sites. (C) 2009 Wiley Periodicals, Inc. J Comput Chem 31: 249-257, 2010
Addresses: [Vchirawongkwin, Viwat] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Pribil, Andreas B.;
Rode, Bernd M.] Innsbruck Univ, Theoret Chem Div, Inst Gen Inorgan & Theoret Chem, A-6020 Innsbruck, Austria
Reprint Address: Vchirawongkwin, V, Chulalongkorn Univ, Dept Chem, Fac Sci, Phyathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
The Thailand Research Fund
Thailand Commission on Higher Education
Contract/grant sponsors: Austrian Science Foundation (FWF), The Thailand Research Fund, Thailand Commission on Higher
Education
Times Cited: 2
ISSN: 0192-8651
DOI: 10.1002/jcc.21308
29-char Source Abbrev.: J COMPUT CHEM
ISO Source Abbrev.: J. Comput. Chem.
ISI Document Delivery No.: 541KE
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Record 264 of 271
Author(s): Amparyup, P (Amparyup, Piti); Wiriyaukaradecha, K (Wiriyaukaradecha, Kriangpol); Charoensapsri, W
(Charoensapsri, Walaiporn); Tassanakajon, A (Tassanakajon, Anchalee)
Title: A clip domain serine proteinase plays a role in antibacterial defense but is not required for prophenoloxidase activation in
shrimp
Source: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY, 34 (2): 168-176 FEB 2010
Language: English
Author Keywords: Shrimp immunity; Penaeus monodon; Clip domain serine proteinase; Vibrio harveyi; RNA interference;
Prophenoloxidase
KeyWords Plus: HOLOTRICHIA-DIOMPHALIA LARVAE; INNATE IMMUNITY; PENAEUS-MONODON; MOLECULARCLONING; INVERTEBRATE IMMUNITY; COLEOPTERAN INSECT; PROTEASE HOMOLOG; TOLL RECEPTOR; TIGER
SHRIMP; DROSOPHILA
Abstract: The clip domain serine proteinases (clip-SPs) play critical roles in the signaling processes during embryonic
development and in the innate immunity of invertebrates. in the present study, we identified a homolog of the clip-SP, designated
as PmClipSP1, by searching the Penaeus monodon EST database (http://pmonodon.biotec.or.th), and using RACE-PCR to obtain
the complete gene which contained a 1101 bp open reading frame encoding 366 amino acids with a 25 amino acid signal peptide.
The deduced PmClipSP1 protein sequence, which shares a predicted structural similarity to the clip-SPs of other arthropod
species, appears to possess a clip domain at the N-terminus and an enzymatically active serine proteinase domain at the
C-terminus. Tissue distribution analyses revealed that, at the transcript level, PmClipSP1 is mainly expressed in shrimp
hemocytes, whilst temporal gene expression analyses showed that the hemocyte PmClipSP1 transcript levels were upregulated at
3 h and downregulated at 6-48 h following systemic Vibrio harveyi infection. RNAi-mediated silencing of the PmClipSP1 gene,
by injection of double-stranded RNA (dsRNA) corresponding to the PmClipSP1 gene into shrimp, significantly reduced
PmClipSP1 transcript levels, but neither significantly altered the other clip-SP and clip-SPH transcript levels nor reduced the
total phenoloxidase (PO) enzyme activity in shrimp hemocytes, compared to the levels seen in the GFP dsRNA control, suggesting
that PmClipSP1 is not involved in the proPO system. However, suppression of the PmClipSP1 gene led to a significant increase in
the number of viable bacteria in the hemolymph (similar to 2.4-fold) and in the mortality rate (59%) of shrimp systemically
infected with V. harveyi. These findings suggest that PmClipSP1 plays a role in the antibacterial defense mechanism of A
monodon shrimp. (C) 2009 Elsevier Ltd. All rights reserved.
Addresses: [Amparyup, Piti; Wiriyaukaradecha, Kriangpol; Charoensapsri, Walaiporn; Tassanakajon, Anchalee] Chulalongkorn
Univ, Ctr Excellence Mol Biol & Genom Shrimp, Dept Biochem, Fac Sci, Bangkok 10330, Thailand; [Amparyup, Piti] NSTDA,
Natl Ctr Genet Engn & Biotechnol BIOTEC, Klongluang 12120, Pathumthani, Thailand; [Wiriyaukaradecha, Kriangpol]
Chulalongkorn Univ, Program Biotechnol, Fac Sci, Bangkok 10330, Thailand
Reprint Address: Tassanakajon, A, Chulalongkorn Univ, Ctr Excellence Mol Biol & Genom Shrimp, Dept Biochem, Fac Sci,
Funding Agency
Grant Number
Thailand National Center for Genetic Engineering and Biotechnology (BIOTEC
This work was supported by a grant from Thailand National Center for Genetic Engineering and Biotechnology (BIOTEC), and
a grant from Thailand Research Fund to Piti Amparyup. A student fellowship granted to Walaiporn Charoensapsri by the Royal
Golden jubilee Ph.D. Program, Thailand Research Fund, is acknowledged.
Times Cited: 0
ISSN: 0145-305X
DOI: 10.1016/j.dci.2009.09.004
ISI Document Delivery No.: 537XK
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Record 265 of 271
Author(s): Chantangsi, C (Chantangsi, Chitchai); Leander, BS (Leander, Brian S.)
Title: Ultrastructure, Life Cycle and Molecular Phylogenetic Position of a Novel Marine Sand-Dwelling Cercozoan: Clautriavia
biflagellata n. sp.
Source: PROTIST, 161 (1): 133-147 JAN 2010
Language: English
Author Keywords: Auranticordis; Cercozoa; comparative ultrastructure; marine interstitial flagellates; phylogenetic analysis;
Protaspis; SSU rDNA
KeyWords Plus: FLAGELLATES PROTISTA; GEN.; CERCOMONADIDA; SEDIMENTS; DIATOMS; SEA
Abstract: Clautriavia is a genus of uncertain taxonomic affinity that was initially described as gliding cells with one prominent
trailing flagellum and a mid-ventral groove. the genus has been classified either with euglenids on the basis of similar
paramylon-like granules or with cercozoans, specifically Protaspis spp., on the basis of general similarities in cell morphology
and behavior. We isolated and cultivated a novel species of Clautriavia, namely C. biflagellata n. sp., from marine sand samples
collected from the west coast of Vancouver is land, Canada and characterized this isolate with high resolution microscopy (LM,
SEM, and TEM) and small subunit (SSU) rDNA sequence. the gliding cells of C. biflagellata n. sp. were round to oval in outline
(12-20 mu m wide and 15-20 mu m long), dorsoventrally flattened, and capable of engulfing other eukaryotic cells (e. g.,
diatoms). the cells possessed two recurrent flagella of unequal length that emerged from a subapical pit within a ventral
depression: the longer prominent flagellum was about 2X the cell length; the shorter flagellum was inconspicuous and was
confined to the ventral depression. Molecular phylogenetic analyses demonstrated that C. biflagellata n. sp. branched strongly
within the Cercozoa, but was only distantly related to Protaspis spp. Instead, C. biflagellata n. sp. branched closely with the
recently established Auranticordida clade, consisting of Auranticordis quadriverberis and Pseudopirsonia mucosa. This position
was concordant with our ultrastructural data, which demonstrated several features shared by A. quadriverberis and C. biflagellata
n. sp. that are not present in Protaspis spp.: (1) a dense distribution of pores on the cell surface; (2) a distinct layer of muciferous
bodies immediately beneath the cell surface; (3) a robust microtubular root attached to the anterior end of the nucleus; (4) the
absence of a thick cell covering; and (5) the absence of conspicuously condensed chromosomes. (C) 2009 Elsevier GmbH. All
rights reserved.
Addresses: Univ British Columbia, Dept Zool, Canadian Inst Adv Res, Program Integrated Microbial Biodivers, Vancouver, BC
V6T 1Z4, Canada; Univ British Columbia, Dept Bot, Canadian Inst Adv Res, Program Integrated Microbial Biodivers, Vancouver,
BC V6T 1Z4, Canada
Reprint Address: Chantangsi, C, Chulalongkorn Univ, Fac Sci, Dept Biol, Phayathai Rd, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Cooperative Research Network (CRN)
Government of Thailand
National Science and Engineering Research Council of Canada
NSERC 283091-04
Canadian Institute for Advanced Research, Program in Integrated Microbial Biodiversity
C. Chantangsi was supported by a national scholarship awarded by the Cooperative Research Network (CRN), the Government
of Thailand. This work was supported by grants to B. S. Leander from the National Science and Engineering Research Council
of Canada (NSERC 283091-04) and the Canadian Institute for Advanced Research, Program in Integrated Microbial
Biodiversity.
Times Cited: 0
Publisher: ELSEVIER GMBH, URBAN & FISCHER VERLAG
Publisher Address: OFFICE JENA, P O BOX 100537, 07705 JENA, GERMANY
ISSN: 1434-4610
DOI: 10.1016/j.protis.2009.09.001
29-char Source Abbrev.: PROTIST
ISO Source Abbrev.: Protist
ISI Document Delivery No.: 536OS
Record 266 of 271
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Author(s): Endoo, S (Endoo, Sasikarn); Pruksathorn, K (Pruksathorn, Kejvalee); Piumsomboon, P (Piumsomboon, Pornpote)
Title: Identification of the key variables in membrane electrode preparation for PEM fuel cells by a factorial design
Source: RENEWABLE ENERGY, 35 (4): 807-813 APR 2010
Language: English
Author Keywords: PEM fuel cells; MEA; Nafion; Experimental Design
KeyWords Plus: CATALYST LAYER; STRUCTURE CATHODE; NAFION CONTENT; PERFORMANCE; FABRICATION
Abstract: This work aimed to characterize and optimize the variables that influence membrane electrode preparation using a
design of experiment (DOE) approach in two steps. First, in the process of electrode preparation, the quantity of PTFE and drying
time were found to have no significant influence whereas the drying temperature and atmosphere, and their interactions, were the
significant variables on the Membrane Electrode Assembly (MEA) performance; a low drying temperature under the air
atmosphere being the proper condition. In the second step, investigating the effect of Nafion content and drying temperature, it was
found that the level of Nafion is critical to the cell performance. There was an optimal Nafion content. In the study, a 15% (w/w)
level of Nafion and 80 degrees C drying temperature for 0.5 h under the air atmosphere were the optimal condition for prepartion
of a MEA with 1 mg cm(-2) of Pt loading. (C) 2009 Elsevier Ltd. All rights reserved.
Addresses: [Endoo, Sasikarn; Pruksathorn, Kejvalee; Piumsomboon, Pornpote] Chulalongkorn Univ, Fac Sci, Dept Chem
Technol, Fuels Res Ctr, Bangkok 10330, Thailand; [Pruksathorn, Kejvalee; Piumsomboon, Pornpote] Chulalongkorn Univ, Ctr
Excellence Petr Petrochem & Adv Mat PPAM, Bangkok 10330, Thailand
Reprint Address: Piumsomboon, P, Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Fuels Res Ctr, Bangkok 10330, Thailand.
Funding Agency
Grant Number
National Council Research of Thailand (NRCT)
Fuels Research Center associated with Center for Petroleum, Petrochemicals, and Advanced Materials
(PPAM)
This work was supported by National Council Research of Thailand (NRCT), and the Fuels Research Center associated with
Center for Petroleum, Petrochemicals, and Advanced Materials (PPAM).
Times Cited: 0
ISSN: 0960-1481
DOI: 10.1016/j.renene.2009.10.013
Record 267 of 271
Author(s): Duangmal, K (Duangmal, Kiattisak); Taluengphol, A (Taluengphol, Alisara)
Title: Effect of protein additives, sodium ascorbate, and microbial transglutaminase on the texture and colour of red tilapia surimi
gel
Source: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 45 (1): 48-55 JAN 2010
Language: English
Author Keywords: Beef plasma protein; egg white; microbial transglutaminase; protein additive; red tilapia; sodium ascorbate;
surimi; tilapia
KeyWords Plus: PLASMA-PROTEIN; LIZARDFISH SURIMI; THREADFIN-BREAM; TROPICAL FISH; PRODUCTS;
INHIBITORS; GELATION; SALT; MANUFACTURE; ACTOMYOSIN
Abstract: P>Beef plasma protein (BPP) and egg white, at levels of 10, 20 and 30 g kg-1, and sodium ascorbate (SA) and
microbial transglutaminase (MTGase), at levels of 1, 2 and 3 g kg-1, were individually added into red tilapia surimi. This gel was
set at 40 degrees C for 90 min followed by heating at 90 degrees C for 30 min. Gel qualities were analysed and compared with
those of non-supplemented red tilapia control gel. Compared with the control, each additive significantly affected gel strength due
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to an increase in breaking force. Although BPP could improve texture characteristics, higher addition levels of BPP significantly
affected gel whiteness. The addition of SA and MTGase were found to increase surimi gel strength and improve whiteness.
Amongst all treatments, the addition of 2 g kg-1 MTGase was found to provide the best gel qualities.
Addresses: [Duangmal, Kiattisak; Taluengphol, Alisara] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330,
Thailand
Reprint Address: Duangmal, K, Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand.
Funding Agency
Grant Number
This work was supported in part by funding from Chulalongkorn University. The authors would like to thank Dr Robert Butcher
for his English editing.
Times Cited: 1
ISSN: 0950-5423
DOI: 10.1111/j.1365-2621.2009.02102.x
ISI Document Delivery No.: 531HO
Record 268 of 271
Author(s): Changhin, P (Changhin, P.); Wanichwecharungruang, SP (Wanichwecharungruang, S. P.); Luadthong, C (Luadthong,
C.); Sritana-Anant, Y (Sritana-Anant, Y.)
Title: Aggregation Phenomena of Amphiphilic UVB Absorptive Oligoesters Containing p-Alkoxycinnamate and Poly(ethylene
oxide) Blocks
Source: JOURNAL OF APPLIED POLYMER SCIENCE, 115 (3): 1724-1731 FEB 5 2010
Language: English
Author Keywords: alkoxycinnamate; oligoester; sunscreen; colloid
KeyWords Plus: COPOLYMERS; MICELLES; PENETRATION; SUNSCREENS; CONTACT; FILTERS; SKIN
Abstract: The synthesis of new amphiphilic oligoesters containing a hydrophobic block based on p-alkoxycinnamate and
hydrophilic poly(ethylene oxide) is reported. Two hydrophobic monomers, 1,2-(bis(4-(2-carboxyvinyl)phenoxy))ethane (M2) and
1,12-(bis(4-(2-carboxyvinyl) phenoxy))dodecane (M12), were synthesized. Four oligoesters, poly((1,2-(bis(4-(2carboxyvinyl)phenoxy))ethane)-co-(poly(ethylene oxide)200)) (P2-200), poly((1,2-(bis(4-(2carboxyvinyl)phenoxy))ethane)-co-(poly(ethylene oxide)400)) (P2-400), poly((1,12-(bis(4-(2carboxyvinyl)phenoxy))dodecane)-co-(poly(ethylene oxide)400)) (P12-400), and poly((1,12-(bis(4-(2carboxyvinyl)phenoxy))dodecane)-co-(poly(ethylene oxide)1000)) (P12-1000) were then constructed by reacting the M2 or M12
with poly(ethylene oxide) (PEO) with lengths of similar to 4 (PEO 200), similar to 10 (PEO 400), or similar to 23 (PEO1000)
units using multiple esterifications. These oligoesters possess UVB absorption properties and show good solubility in various
organic solvents. Self-assembly of the oligoesters; into aqueous spherical colloids could be induced through an acetone to water
solvent displacement technique. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 115:1724-1731, 2010
Addresses: [Wanichwecharungruang, S. P.; Luadthong, C.; Sritana-Anant, Y.] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok,
Thailand; [Changhin, P.] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Bangkok, Thailand; [Changhin, P.]
Chulalongkorn Univ, Natl Ctr Petr Petrochem & Adv Mat NCE PPAM, Bangkok, Thailand
Reprint Address: Wanichwecharungruang, SP, Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok, Thailand.
Funding Agency
Grant Number
Thailand Research Fund, Office of Commission for Higher Education, Chulalongkorn University
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Contract grant sponsors: Thailand Research Fund, Office of Commission for Higher Education, Chulalongkorn University
Graduate Thesis Grant.
Times Cited: 0
ISSN: 0021-8995
DOI: 10.1002/app.31196
ISI Document Delivery No.: 530ZP
Record 269 of 271
Author(s): Holme, TP (Holme, Timothy P.); Pornprasertsuk, R (Pornprasertsuk, Rojana); Prinz, FB (Prinz, Fritz B.)
Title: Interpretation of Low Temperature Solid Oxide Fuel Cell Electrochemical Impedance Spectra
Source: JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 157 (1): B64-B70 2010
Language: English
KeyWords Plus: YTTRIA-STABILIZED ZIRCONIA; ELECTRICAL-CONDUCTIVITY; SPECTROSCOPY; SIMULATION;
CATHODES
Abstract: Electrochemical impedance spectroscopy was performed on low temperature solid oxide fuel cells with yttriastabilized zirconia electrolytes and different electrode materials and morphologies. Three loops are seen in a Nyquist plot; the
high frequency loop is attributed to the electrolyte and series resistance. The intermediate and low frequency loops are influenced
by the material and morphology of both electrodes. To clarify which elementary processes contribute to each loop, kinetic Monte
Carlo simulations of a solid oxide fuel cell were performed to calculate the reaction rates for each elementary process. The rates
fall into three groupings, allowing the identification of processes with corresponding features in the impedance spectra. Vacancy
diffusion processes occur at the highest frequency, agreeing with the usual assignment of the high frequency loop with series
resistance. Chemical reactions at the anode have an intermediate frequency, suggesting that the intermediate frequency loop is
dominated by anode reactions. Low frequency reactions include electrochemical reactions, chemical reactions at the cathode, and
water formation and desorption at the anode. This agrees with the experimental findings of the strong dependence of the low
frequency loop on the bias voltage and the dominance of the cathode reactions in the low frequency regime. (C) 2009 The
Electrochemical Society. [DOI:10.1149/1.3251291] All rights reserved.
Addresses: [Holme, Timothy P.; Prinz, Fritz B.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA; [Pornprasertsuk,
Rojana] Chulalongkorn Univ, Fac Sci, Dept Mat Sci, Res Unit Adv Ceram, Bangkok 10330, Thailand; [Pornprasertsuk, Rojana]
Chulalongkorn Univ, Natl Ctr Excellence Petr Petrochem & Adv Mat, Res Unit Adv Ceram & Polymer Mat, Bangkok 10330,
Thailand
Reprint Address: Holme, TP, Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA.
Times Cited: 0
Publisher: ELECTROCHEMICAL SOC INC
Publisher Address: 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
ISSN: 0013-4651
DOI: 10.1149/1.3251291
29-char Source Abbrev.: J ELECTROCHEM SOC
ISO Source Abbrev.: J. Electrochem. Soc.
Subject Category: Electrochemistry; Materials Science, Coatings & Films
ISI Document Delivery No.: 527SQ
Record 270 of 271
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Author(s): Cerenius, L (Cerenius, Lage); Lu, HP (Lu, Haipeng); Zhang, YJ (Zhang, Yanjiao); Rimphanitchayakit, V
(Rimphanitchayakit, Vichien); Tassanakajon, A (Tassanakajon, Anchalee); Andersson, MG (Andersson, M. Gunnar); Soderhall, K
(Soderhall, Kenneth); Soderhall, I (Soderhall, Irene)
Title: High sequence variability among hemocyte-specific Kazal-type proteinase inhibitors in decapod crustaceans
Source: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY, 34 (1): 69-75 JAN 2010
Language: English
Author Keywords: Innate immunity; Host-parasite interactions; Hematopoiesis; Crayfish; Shrimp; Kazal inhibitor; Serine
proteinase inhibitor; WSSV
KeyWords Plus: SHRIMP PENAEUS-MONODON; PROTEASE INHIBITOR; PACIFASTACUS-LENIUSCULUS; CRAYFISH
BLOOD; CDNA CLONING; FRESH-WATER; EXPRESSION; PURIFICATION; DOMAIN; GENE
Abstract: Crustacean hemocytes were found to produce a large number of transcripts coding for Kazal-type proteinase inhibitors
(KPIs). A detailed study performed with the crayfish Pacifastacus leniusculus and the shrimp Penaeus monodon revealed the
presence of at least 26 and 20 different Kazal domains from the hemocyte KPIs, respectively. Comparisons with KPIs from other
taxa indicate that the sequences of these domains evolve rapidly. A few conserved positions, e.g. six invariant cysteines were
present in all domain sequences whereas the position of PI amino acid, a determinant for substrate specificity, varied highly. A
study with a single crayfish animal suggested that even at the individual level considerable sequence variability among hemocyte
KPIs produced exist. Expression analysis of four crayfish KPI transcripts in hematopoietic tissue cells and different hemocyte
types suggest that some of these KPIs are likely to be involved in hematopoiesis or hemocyte release as they were produced in
particular hemocyte types or maturation stages only. (C) 2009 Elsevier Ltd. All rights reserved.
Addresses: [Cerenius, Lage; Zhang, Yanjiao; Soderhall, Kenneth; Soderhall, Irene] Uppsala Univ, Dept Comparat Physiol,
SE-75236 Uppsala, Sweden; [Lu, Haipeng] Xiamen Univ, State Key Lab Marine Environm Sci, Coll Oceanog & Environm Sci,
Xiamen 361005, Fujian, Peoples R China; [Rimphanitchayakit, Vichien; Tassanakajon, Anchalee] Chulalongkorn Univ, Ctr
Excellence Mol Biol & Genom Shrimp, Dept Biochem, Fac Sci, Bangkok 10330, Thailand; [Andersson, M. Gunnar] Biomed Ctr,
Dept Cell & Mol Biol, Linnaeus Ctr Bioinformat, SE-75124 Uppsala, Sweden; [Zhang, Yanjiao] Ocean Univ China, Minist Educ,
Key Lab Mariculture, Qingdao 266003, Peoples R China
Reprint Address: Cerenius, L, Uppsala Univ, Dept Comparat Physiol, Norbyvagen 18 A, SE-75236 Uppsala, Sweden.
Funding Agency
Grant Number
Swedish Research Council (NT)
Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning
Commission on Higher Education and Thailand National Center for Genetic Engineering and Biotechnology
(BIOTEC)
This study was financed by grants to KS from the Swedish Research Council (NT) and from the Swedish Research Council for
Environment, Agricultural Sciences and Spatial Planning and to AT from the Commission on Higher Education and Thailand
National Center for Genetic Engineering and Biotechnology (BIOTEC).
Times Cited: 3
ISSN: 0145-305X
DOI: 10.1016/j.dci.2009.08.005
ISI Document Delivery No.: 523QD
Record 271 of 271
Author(s): Iamsamai, C (Iamsamai, Chularat); Hannongbua, S (Hannongbua, Supot); Ruktanonchai, U (Ruktanonchai, Uracha);
Soottitantawat, A (Soottitantawat, Apinan); Dubas, ST (Dubas, Stephan T.)
Title: The effect of the degree of deacetylation of chitosan on its dispersion of carbon nanotubes
Source: CARBON, 48 (1): 25-30 JAN 2010
Language: English
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59 of 59
KeyWords Plus: AQUEOUS-SOLUTIONS; DRUG-DELIVERY; ELECTRONICS; FUNCTIONALIZATION; ACETYLATION;
SURFACTANTS; CHITIN
Abstract: The effect of the degree of deacetylation (DD) of chitosan biopolymer on the noncovalent surface modification of
multiwall carbon nanotubes (MWCNTs) is presented. MWCNTs were modified by chitosan having different degree of
deacetylation (61%, 71%, 78%, 84%, 90% and 93%) and UV-Visible spectroscopy was used to evaluate their dispersion
efficiency as a function of chitosan concentration and degree of deacetylation. Results showed that the dispersion of MWCNTs
could be dramatically improved when using chitosan with the lowest degree of deacetylation (61%DD) possibly due to a higher
surface coverage of the MWCNTs. Zeta potential measurements were used to confirm that the chitosan surface coverage on the
MWCNTs was twice as high when modifying the nanotubes surface with the 61%DD than when using the 93%DD chitosan. These
results suggest that the dispersion of MWCNTs with chitosan can be improved when using chitosan having a degree of
deacetylation of 61%. These results are of interest in particular for the improved dispersion of MWCNTs in aqueous solutions
such as in drug delivery applications. (C) 2009 Elsevier Ltd. All rights reserved.
Addresses: [Dubas, Stephan T.] Chulalongkorn Univ, Met & Mat Sci Res Inst, Bangkok 10330, Thailand; [Iamsamai, Chularat]
Chulalongkorn Univ, Grad Sch, Nanosci & Technol Program, Bangkok 10330, Thailand; [Hannongbua, Supot] Chulalongkorn
Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand; [Ruktanonchai, Uracha] Natl Sci & Technol Dev Agcy, Natl Nanotechnol
Ctr, Pathum Thani 12120, Thailand; [Soottitantawat, Apinan] Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Bangkok 10330,
Thailand
Reprint Address: Dubas, ST, Chulalongkorn Univ, Met & Mat Sci Res Inst, Bangkok 10330, Thailand.
Funding Agency
Grant Number
Thailand Graduate Institute of Science and Technology TG-55-09-50-059D
The authors are grateful to Thailand Graduate Institute of Science and Technology (TG-55-09-50-059D) and The 90th
Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment Fund) for their financial supports.
Times Cited: 1
ISSN: 0008-6223
DOI: 10.1016/j.carbon.2009.06.060
29-char Source Abbrev.: CARBON
ISO Source Abbrev.: Carbon
Subject Category: Chemistry, Physical; Materials Science, Multidisciplinary
ISI Document Delivery No.: 522SK
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