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Wang Wen W Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China. xieqj@hunnu.edu.cn - - 2014
We report a new and efficient protocol for rapid electrodeposition of a gold-Prussian blue ((Au-PB)REd) nanocomposite with ultrahigh electroactivity on an Au electrode by cyclic voltammetry in 0.1 M aqueous K2SO4 containing 1 mM K3Fe(CN)6, 1 mM HAuCl4, and 0.1 mM Fe2(SO4)3, and an electrochemical quartz crystal microbalance and scanning ...
Wu Jingqing J Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University , Beijing 100875, - - 2014
A method was developed for determining free fatty acids in edible plant oils by incorporation of running-buffer-mediated liquid-liquid extraction and polyamidoamine-dendrimer-assisted capillary electrophoresis-capacitively coupled contactless conductivity detection. The recoveries for the extraction were in the range of 90.1% and 110.3%. Addition of dendrimer to the running buffer improved the separation ...
Tang Yongan Y Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA. - - 2014
Palladium nanorods with controlled lengths from 100 to 500 nm and a fixed width of 20 nm were synthesized for the first time by a seedless approach. These rods show higher peak current densities than Pd cubes for formic acid oxidation and the catalytic activity decreases with increasing rod length.
Thomas Javix J Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2 (Canada), Fax: - - 2014
Rotational spectra of perfluorobutyric acid (PFBA) and its monohydrate were studied with a broadband chirped pulse and a narrow-band cavity based Fourier transform microwave spectrometer, and high-level ab initio calculations. Extensive conformational searches were performed for both the acid and its monohydrate at the MP2/6-311++G(2d,p) level of theory. Two and ...
Zhou Yanli Y Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry, College of Chemistry and Chemical Engineering, Shangqiu Normal Universtiy, Shangqiu 476000, - - 2014
A novel potentiometric approach was described for probing sialic acid (SA) using a poly(anilineboronic acid)/graphene modified glassy carbon (GC) electrode. The proposed electrode was prepared by electrodeposition of reduced graphene oxide (ERGO) at a GC electrode and then coated with a poly(anilineboronic acid) (PABA) film by electropolymerization of its monomer. ...
Qiu Xujian X College of Biological Engineering, Jimei University, Xiamen 361021, China; Engineering Research Center for Aquatic Products Processing of Fujian Province, Jimei University, Xiamen 361021, China; Key Laboratory of Food Microbiology and Enzyme Engineering of Fujian Province, Xiamen 361021, China. Electronic address: - - 2014
The preserving effects of chitosan, chitosan and citric acid, chitosan and licorice extract on fresh Japanese sea bass fillets stored at 4°C for 12days were studied. Results showed that citric acid or licorice extract can enhance the preserving function of chitosan significantly by retarding lipid oxidation and inhibiting microbial growth ...
Chaplin David A DA Chirotech Technology Centre, Dr Reddy's Laboratories EU Ltd., Unit 410 Cambridge Science Park, Milton Road, Cambridge, CB4 0PE, UK. - - 2014
Dehydrocoronamic acid can be racemised by dehydration of an N-acyl derivative to an azlactone, which undergoes facile racemisation. For the N-trifluoroacetyl derivative, the racemisation process was combined with an enzymatic resolution, to achieve a dynamic kinetic resolution process by which the racemate can be converted to either enantiomer.
Peters Christoph C Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, SE-171 21, Solna, - - 2014
The recognition of transmembrane helices by the translocon is primarily guided by the average hydrophobicity of the potential transmembrane helix. However, the exact hydrophobicity of each amino acid can be identified in several different ways. The free energy of transfer for amino acid analogues between a hydrophobic media, e.g. octanol, ...
Liu Ying-Bao YB State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, People's Rep of - - 2014
Over-expression of the gene, mshA, coding for mycothiol glycosyl transferase improved the robustness of Corynebacterium glutamicum to various stresses. Intracellular mycothiol (MSH) content was increased by 114 % in WT(pXMJ19-mshA) compared to WT(pXMJ19). Survival rates increased by 44, 39, 90, 77, 131, 87, 52, 47, 57, 85 and 33 % as compared ...
Aydın Banu B Neonatal Intensive Care Unit, Dr. Sami Ulus Maternity and Children Training and Research Hospital, Ankara, - - 2014
To determine the role of mean platelet volume (MPV) and uric acid levels in the diagnosis of neonatal sepsis (NS). A total of 146 newborns with suspected NS were prospectively included in the study and infants without NS (n = 142) were assigned as controls. The patients were divided into three groups: ...
Kruve Anneli - - 2014
Electrospray ionization (ESI) in the negative ion mode has received less attention in fundamental studies than the positive ion electrospray ionization. In this paper we study the efficiency of negative ion formation in ESI source via deprotonation of substituted phenols and benzoic acids and explore correlations of the obtained ionization ...
Ma Ye Y State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, - - 2014
When the in vitro research works of biosensing begin to mimic in vivo conditions, some certain three-dimensional (3D) structures of biosensors are needed to accommodate biomolecules, bacteria or even cells to resemble the in vivo 3D environment. To meet this end, a novel method of synthesizing CuO nanoflowers on the ...
Neumüller K G KG DSM Biotechnology Center, PO Box 1, 2600 MA Delft, The Netherlands; Laboratory of Food Chemistry, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen, The - - 2014
Supplementation of a Trichoderma longibrachiatum preparation to an industrial Aspergillus niger/Talaromyces emersonii enzyme mixture demonstrated synergy for the saccharification of corn silage water-unextractable solids (WUS). Sub-fractions of the crude T. longibrachiatum preparation obtained after chromatography were analyzed regarding their hydrolytic activity. An acetyl xylan esterase 1 [Axe1, carbohydrate esterase (CE) ...
Rizzello Carlo Giuseppe CG Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Bari, - - 2014
This study aimed at investigating the addition of legume (chickpea, lentil and bean) flours to wheat flour bread. Type I sourdough containing legumes or wheat-legume flours were prepared and propagated (back slopped) in laboratory, according to traditional protocols that are routinely used for making typical Italian breads. Based on kinetic ...
King Frank D FD Department of Chemistry, University College London, 20 Gordon Street, London, UK. - - 2014
N-Cinnamoyl-9-aminoanthracenes cyclise with PPA or triflic acid to form novel 2-azahexacyclo[10.6.6.0(1,5).0(6,11).0(13,18).0(19,24)]tetracosa-6(11),7,9,13,15,17,19(24),20,22-nonaen-3-ones. In contrast, both N-cinnamoyl-N-methyl-9-(2-aminomethyl)anthracene and N-cinnamoyl-9-(2-aminoethyl)anthracene undergo an intramolecular Diels-Alder cycloaddition.
Praveenkumar Ramasamy R Biomass and Waste Energy Laboratory, Korea Institute of Energy Research (KIER), Daejeon, 305-343, Republic of - - 2014
Flue gases mainly consist of CO2 that can be utilized to facilitate microalgal culture for bioenergy production. In the present study, to evaluate the feasibility of the utilization of flue gas from a coal-burning power plant, an indigenous and high-CO2-tolerant oleaginous microalga, Chlorella sp. KR-1, was cultivated under mixotrophic conditions, ...
Rohof Wout O WO Department of Gastroenterology & Hepatology, Academic Medical Center, Amsterdam, the - - 2014
The gastric acid pocket is believed to be the reservoir from which acid reflux events originate. Little is known about how changes in position, size, and acidity of the acid pocket contribute to the therapeutic effect of proton pump inhibitors (PPIs) in patients with gastroesophageal reflux disease (GERD). Thirty-six patients ...
Rivas Sandra S Chemical Engineering Department, University of Vigo, Polytechnical Building (Campus Ourense), As Lagoas, 32004 Ourense, Spain; CITI-University of Vigo, Tecnopole, San Cibrao das Viñas, 32901 Ourense, - - 2014
Water soluble compounds were removed from Pinus pinaster wood by a mild aqueous extraction, and the treated wood was subjected to hydrothermal processing to convert most hemicelluloses into soluble saccharides (including low molecular weight polymers, oligomers and monosaccharides). The liquid phase containing hemicellulose-derived saccharides was acidified with sulfuric acid and ...
Zhao Tong T Center for Food Safety, College of Agricultural and Environmental Sciences, The University of Georgia, 1109 Experiment Street, Griffin, Georgia 30223, - - 2014
Studies were done at 21°C to determine the bactericidal activity of lactic acid, levulinic acid, and sodium dodecyl sulfate (SDS) applied individually and in combination on Shiga toxin-producing Escherichia coli (STEC) in pure culture and to compare the efficacy of lactic acid and levulinic acid plus SDS treatments applied by ...
Arora Preeti P Microbial Science Division, Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, - - 2014
A consortium of bacteria growing at 91°C and above (optimally at 96°C) was developed for the recovery of crude oil from declining/depleted oil reservoirs having temperature of more than 91°C. PCR-DGGE-Sequencing analysis of 16S rRNA gene fragments of NJS-4 consortium revealed the presence of four strains identified as members of ...
Zhao Jie J Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, - - 2014
A new generation of triazole-bridged bilayer cyclodextrins (CDs) chiral stationary phase (CSP) material was constructed via a surface-up 'click' approach. The synergistic effect of the tandem-inverted duplex CDs was evidenced by the superior enantioresolution ability toward selected chiral compounds and the enhanced adsorption ability toward hesperetin. The enantioselectivities of dansyl ...
Huang Ya Y Unit for Analytical Probes and Protein Biotechnology, Key Laboratory of Clinical Laboratory Diagnostics of the Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, - - 2014
A new formulation of the bi-reagent kit for serum uric acid assay was developed considering effects of pH on enzyme stability. At 4 °C, half-lives of uricases from Bacillus fastidious and Arthrobacter globiforms were longer than 15 months at pH 9.2, but became shorter at pH below 8.0; half-lives of ...
Yu Liang L Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, - - 2014
The bioconversion of fiber-based carbohydrates during anaerobic digestion (AD) is impeded due to the recalcitrant nature of the plant cell wall. Pretreatment of lignocellulose materials under mild conditions are needed to improve the digestibility at minimum cost. This study investigated the effects of different pretreatments, including ozone, soaking aqueous ammonia ...
Welz Oliver O Combustion Research Facility, Sandia National Laboratories, Stop 9055, Livermore, CA 94551-0969 - - 2014
Rate coefficients are directly determined for the reactions of the Criegee intermediates (CI) CH2 OO and CH3 CHOO with the two simplest carboxylic acids, formic acid (HCOOH) and acetic acid (CH3 COOH), employing two complementary techniques: multiplexed photoionization mass spectrometry and cavity-enhanced broadband ultraviolet absorption spectroscopy. The measured rate coefficients ...
Ziyatdinova Guzel G Analytical Chemistry Department, A.M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyevskaya 18, Kazan, Russian Federation. Electronic address: - - 2014
Cognac and brandy components are electrochemically oxidized on multi-walled carbon nanotube modified glassy carbon electrode at 0.44 and 0.59V in 0.1М phosphate buffer solution pH 3.0. Voltammetric behavior of the main antioxidant constituents of cognac (ellagic and gallic acids, syringaldehyde, coniferaldehyde, vanillin, 5-hydroxymethylfurfural and furfural) has been investigated. The peak ...
Ye Yangfang - - 2014
Extreme low salinity influences normal crab growth, morphogenesis, and production. Some individuals of swimming crab Portunus trituberculatus have, however, an inherent ability to adapt to such a salinity fluctuation. Here, we investigated the dynamic metabolite alterations of two P. trituberculatus strains, namely a wild one and a screened (low salinity ...
Malec Marta - - 2014
Red-fleshed apples can be used for the production of innovative products such as Rosé juices and ciders. Phenolic compounds including procyanidins (i.e. condensed tannins) and anthocyanins were quantified in the fruits and the juices of a red-fleshed apple cultivar by chromatography coupled to UV-visible and mass spectrometry. Juice color was ...
Montero-Campillo M Merced MM Departamento de Química, Facultad de Ciencias, Módulo 13, Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049 Madrid (Spain), Fax: - - 2014
The most stable complexes between squaric acid and its sulfur- and selenium-containing analogues (C4 X4 H2 ; X=O, S, Se) with BeY2 (Y=H, F) were studied by means of the Gaussian 04 (G4) composite ab initio theory. Squaric acid derivatives are predicted to be very strong acids in the gas phase; ...
Kim Hyung Ju HJ Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Dr., Madison, WI 53706 - - 2014
This study demonstrates that an electrochemical dehydrogenation process can be used to oxidize glycerol to glyceraldehyde and glyceric acid even without using stoichiometric chemical oxidants. A glyceric acid selectivity of 87.0 % at 91.8 % glycerol conversion was obtained in an electrocatalytic batch reactor. A continuous-flow electrocatalytic reactor had over an 80 % ...
Brash Alan R AR Vanderbilt University, United - - 2014
In the course of exploring the scope of catalase-related hemoproteins' reactivity towards fatty acid hydroperoxides, we detected a novel candidate in the cyanobacterium Nostoc punctiforme PCC 73102. The immediate neighboring upstream gene, annotated as ″cyclooxygenase-2″, appeared to be a potential fatty acid heme dioxygenase. We cloned both genes and expressed ...
Li Huixiang H Department of Chemistry, Fudan University, Shanghai 200433, PR - - 2014
A multi-walled carbon nanotubes (MWNTs) bridged mesocellular graphene foam (MGF) nanocomposite (MWNTs/MGF) modified glassy carbon electrode was fabricated and successfully used for simultaneous determination of ascorbic acid (AA), dopamine (DA), uric acid (UA) and tryptophan (TRP). Comparing with pure MGF, MWNTs or MWNTs/GS (graphene sheets), MWNTs/MGF displayed higher catalytic activity ...
Que Youxiong Y Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China; College of Crop Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China. Electronic address: - - 2014
In this study, a two-stage pH-shift fermentation process was developed for the coproduction of laccase and exopolysaccharides (EPS) by Coriolus versicolor. At the same time, laccase and EPS were purified and characterised in detail. The results showed that the highest laccase and EPS production reached 7680Ul(-1) and 8.2gl(-1). Furthermore, the ...
Berthelmann Arne A Department of Chemistry and Pharmacy, University of Erlangen-Nurnberg, Schuhstr. 19, 91052 Erlangen, Germany. - - 2014
C3-Symmetric trimesic acid scaffolds, functionalized with bromoacetyl, aminooxyacetyl and azidoacetyl moieties, respectively, were synthesized and compared regarding their utility for the trivalent presentation of peptides using three different chemoselective ligation reactions, i.e. thioether and oxime formation, as well as the "click" reaction. The latter ligation method was then used to ...
Mojumder Nazrul - - 2014
A solvothermal method is used to deposit Pt nanoparticles on anodized TiO2 nanotubes (T_NT). Surface characterization using SEM, EDX, and XRD indicates the formation of polycrystalline TiO2 nanotubes of 11010 nm diameter with Pt nanoparticle islands. The application of the T_NT/Pt photoanode has been examined towards simultaneous electrooxidation and photooxidation ...
Lund K E KE UWA Institute of Agriculture (Animal Production) (M085), The University of Western Australia, Crawley, WA, Australia; School of Animal Biology (M085), The University of Western Australia, Crawley, WA, - - 2014
Alpacas have evolved digestive and metabolic adaptations that enable them to survive in environments where the available feed varies in nutritional quality. Alpacas are thought to derive glucose from the deamination of amino acids in the liver, rather than via the conversion of propionate like true ruminants. Because fibre growth ...
Styring Amy K AK Organic Geochemistry Unit, Biogeochemistry Research Centre, School of Chemistry, University of Bristol, Bristol, - - 2014
Amino acid δ(15)N values of barley (Hordeum vulgare) and bread wheat (Triticum aestivum) grains and rachis and broad bean (Vicia faba) and pea (Pisum sativum) seeds, grown in manured and unmanured soil at the experimental farm stations of Rothamsted, UK and Bad Lauchstädt, Germany, were determined by GC-C-IRMS. Manuring was ...
Bodroža-Solarov Marija M Institute of Food Technology, University of Novi Sad, Bul. cara Lazara 1, 21000, Novi Sad, - - 2014
In the present paper, a special method for derivatization of liposoluble extract of common wheat and spelt flours was employed which enables simultaneous detection of fatty acid and non-saponifiable lipid fractions. GC-MS analytical data for both fractions were separately analyzed by multivariate statistical techniques to model classes of different common ...
Ye Fayin F College of Food Science, Southwest University, Chongqing 400715, - - 2014
The adsorptive separation of each steviol glycoside from aqueous solutions by polymeric adsorbents has attracted a lot of interest in recent years. The adsorption properties of chloromethylated cross-linked poly(styrene-co-divinylbenzene) macroporous resins, functionalised with chloromethyl, amino and phenylboronic acid groups, towards rebaudioside A and stevioside were studied. The results revealed that ...
Cai Cuifang C Department of Pharmaceutics, Shenyang Pharmaceutical University , Shenyang , - - 2014
Abstract In the present study, the stability of thymopentin (TP5) in bronchoalveolar lavage fluid (BALF) in presence of potential excipients in inhalation formulation was investigated. The content of TP5 was determined using HPLC method. Commonly used bulking agent, dispersibility enhancers and absorption enhancers in inhalation were investigated with respect to ...
Murphy John Patrick - - 2014
Quantitative metabolomics and proteomics technologies are powerful approaches to explore cellular metabolic regulation. Unfortunately, combining the two technologies typically requires different LC-MS setups for sensitive measurement of metabolites and peptides. One approach to enhance the analysis of certain classes of metabolites is by derivatization with various types of tags to ...
Meng Yanhong - - 2014
In the application of traditional bulk heterojunction polymer solar cells, to prevent the etching of ITO by the acidic poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and thereby improve the device stability, pH-neutral PEDOT:PSS is introduced as the hole transport layer (HTL). After treating the neutral PEDOT:PSS with UV-ozone and with an oxygen plasma, the ...
Faghihi Homa H Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, - - 2014
This study investigated the effect of various amino acids on the molecular and thermodynamic stability of IgG (immune globulin G) as well as its aerosol performance. The antibody was spray-dried in the presence of different amino acids (leucine, phenylalanine, cysteine, glycine, lysine and arginine) using 20% and 50% (w/w) amino ...
de Oliveira Mendes Gilberto G Departamento de Microbiologia, Universidade Federal de Viçosa, - - 2014
During fungal rock phosphate (RP) solubilization, a significant quantity of fluoride (F(-)) is released together with phosphorus (P), strongly inhibiting the process. In the present work, the effect of two F(-) adsorbents (activated alumina (Al2O3) and biochar) on RP solubilization by Aspergillus niger was studied. Al2O3 adsorbed part of the ...
Gillams Richard James - - 2014
The addition of saturated fatty acids (FA) to phosphatidylcholine lipids (PC) that have saturated acyl chains has been shown to promote the formation of lyotropic liquid crystalline phases with negative mean curvature. PC/FA mixtures may exhibit inverse bicontinuous cubic phases (Im3m, Pn3m) or inverse topology hexagonal phases (HII), depending on ...
Yen Hong-Wei HW Department of Chemical and Materials Engineering, Tunghai University, Taichung 407, Taiwan. Electronic address: - - 2014
In the simultaneous biological production of 1,3-propanediols (PDO) and 2,3-butanediols (BDO), glycerol was suggested to be a suitable carbon source. Extra addition of 10g/L of lactic acid can create about a 30% increase in total diols production compared to the control batch. Several different pH control strategies were investigated. The ...
Ojewole Elizabeth E Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal , Durban, KwaZulu-Natal , South Africa - - 2014
Abstract The aim of this study was to explore the potential of novel oleic acid (OA) derivatives as buccal permeation enhancers for the delivery of didanosine (ddI). The OA derivatives, i.e. ester derivative (OA1E), the dicarboxylic acid derivative (OA1A) and the bicephalous dianionic surfactant (OA1ANa) were synthesized and their effects ...
Cui Yan Y School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China; Shandong Luoxin Pharmaceutical Co., Ltd., Linyi 276017, - - 2014
A simple, efficient and general HPLC method for the determination of enantiomeric purity of a series of (l)-amino acids was developed. In order to improve the detection sensitivity, pre-column derivatization was adopted and 7-chloro-4-nitrobenzoxadiazole (NBD-Cl) was selected as derivatization reagent. NBD-amino acid enantiomers were then enantioseparated on a Pirkle-type chiral ...
Ma Cuiping C State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China. - - 2014
A new isothermal and cascade signal amplification method for sensitive nucleic acid detection was developed, which is ultra-simple because it only depends on one double-nicked beacon.
Zhang Liying L School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, - - 2014
Trace penicilloic acid allergen frequently leads to various fatal immune responses to many patients, but it is still a challenge to directly discriminate and detect its residue in penicillin by a chemosensing way. Here, we report that silver-coated gold nanoparticles (Au@Ag NPs) exhibit a structure-selective hot-spot Raman enhancement capability for ...
Ahmad A L - - 2014
In this work, a mixture of chloroform and methanol (1:1, v/v) was applied to oil extraction from Chlorella sp. at 30, 40, 50 and 60 degrees C for 150 min extraction times. Kinetic studies revealed that the values of n and the rate constants were found to depend strongly on ...
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