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He Jie - - 2014
Monodisperse porous zirconia (ZrO2) microspheres with nanocrystallized framework were fabricated by impregnation of porous polymer microspheres as a novel hard template with zirconia precursors followed by calcination to remove the template. Porous phosphorylated zirconia (PhZr) microspheres were prepared by further treating porous zirconia microspheres with phosphoric acid. The morphology, structure, ...
Ghaddar Kassem K ULB, - - 2014
Amino-acid uptake in yeast cells is mediated by about sixteen plasma membrane permeases, most of which belong to the APC (amino acid, polyamine, organocation) transporter family. These proteins display various substrate specificity ranges. For instance, the general amino-acid permease Gap1 transports all amino acids, whereas Can1 and Lyp1 catalyze specific ...
Mittal Nisha N Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United - - 2014
A conjugate-base-stabilized Brønsted acid facilitates catalytic enantioselective Pictet-Spengler reactions with unmodified tryptamine. The chiral carboxylic acid catalyst is readily assembled in just two steps and enables the formation of β-carbolines with up to 92% ee. Achiral acid additives or in situ Boc-protection facilitate catalyst turnover.
Hami Zahra Z Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, - - 2014
pH-responsive docetaxel-conjugated poly (lactic acid) (PLA)-polyethyleneglycol (PEG) micellar formulation was synthesized via acid labile hydrazone linkage. Levulinic acid (LEV) was used as a linker between docetaxel (DTX) and hydrazine. Targeted delivery of DTX was achieved by conjugation of folate to PEG segment. The DTX conjugated polymeric micelles were about 181nm ...
Singh Purnima P Birla Institute of Technology and Science (BITS), Pilani-K.K. Birla Goa Campus, Zuarinagar, Goa 403726, India. Electronic address: - - 2014
A psychrophilic yeast species was isolated from glacier cryoconite holes of Svalbard. Nucleotide sequences of the strainswere studied using D1/D2 domain, ITS region and partial sequences of mitochondrial cytochrome b gene. The strains belonged to a clade of psychrophilic yeasts, but showed marked differences from related species in the D1/D2 ...
Kaise Hiromi H Graduate School of Pharmaceutical Sciences, University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, - - 2014
Redox transformation of an α,β-unsaturated aldehyde to a carboxylic acid derivative by means of a combination of TMSCN and DBU was investigated. In addition to the wide use of the carboxylic acid derivatives provided by this reaction, temperature-dependent control of the kinetic or thermodynamic protonation pattern was found to selectively ...
Jebali Ali A Department of Medical Physics and Biomedical Engineering, Shahid Beheshti University of Medical Sciences , Tehran , Iran - - 2014
Abstract Nanoparticles (NPs) can adsorb different molecules, because of their high local charge density and specific surface area. The toxicity of NPs is changed after adsorption, which may be different from unbound or unbound NPs. In this study, unbound silver nanoparticles (Ag NPs) and Ag NPs coated with different free ...
Wu Fang-Chen FC Department of Bioindustry Technology, Da-Yeh University, Changhua, - - 2014
Gracilaria sp., a red alga, was used as a feedstock for the production of bioethanol. Saccharification of Gracilaria sp. by sequential acid and enzyme hydrolysis in situ produced a high quality hydrolysate that ensured its fermentability to produce ethanol. The optimal saccharification process resulted in total 11.85g/L (59.26%) of glucose ...
Belcher James J The University of Manchester, United - - 2014
The production of hydrocarbons in Nature has been documented for only a limited set of organisms, with many of the molecular components underpinning these processes only recently identified. There is an obvious scope for application of these catalysts, and engineered variants thereof, in future production of biofuels. Here we present ...
Manikandan Rajendran R Department of Chemistry, Indian Institute of Science Education and Research , Pune 411021, - - 2014
Acetanilides reacted with symmetrical as well as unsymmetrical alkynes in the presence of [{RuCl2(p-cymene)}2], pivalic acid, and AgSbF6 in iso-PrOH providing ortho-alkenylated acetanilides in a highly regio- and stereoselective manner. Later, ortho-alkenylated acetanilides were converted into ortho-alkenylated anilines in the presence of HCl.
Liu Jun J College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China. Electronic address: - - 2014
In this study, two water soluble chitosan derivatives were synthesized by grafting caffeic acid (CA) and ferulic acid (FA) onto chitosan via a free radical mediated method. The structural characterization, antioxidant activity in vitro and in vivo of chitosan derivatives were determined. Results showed that the UV-vis absorption peaks of ...
van der Straat Laura - - 2014
Aspergillus terreus is a natural producer of itaconic acid and is currently used to produce itaconic acid on an industrial scale. The metabolic process for itaconic acid biosynthesis is very similar to the production of citric acid in Aspergillus niger. However, a key enzyme in A. niger, cis-aconitate decarboxylase, is ...
Liu Jifeng J a School of Pharmaceutical Science, Zhengzhou University , Ke Xue Da Dao 100, Zhengzhou , 450001 , People's Republic of - - 2014
One new inositol triester, 4,5,6-tri-O-p-hydroxyphenylacetyl-chiro-inositol (1), was isolated from the ethanolic extract of Taraxacum mongolicum, along with two known compounds, 11β,13-dihydrotaraxinic acid (2) and taraxinic acid β-d-glucopyranosyl ester (3). The isolates were tested for their anti-hepatitis B virus (HBV) activities; 11β,13-dihydrotaraxinic acid (2) exhibited an IC50 value of 0.91 mM inhibiting ...
Smith Siobhan Rose - - 2014
The isothiourea HBTM-2.1 catalyzes the asymmetric formal [2+2] cycloaddition of both arylacetic acids and 2-arylacetic anhydrides with N-sulfonyl aldimines, generating stereodefined 2,3-diaryl-beta-amino esters (after ring-opening) and 3,4-diaryl-anti-beta-lactams respectively with high diastereocontrol (up to >95:5 dr) and good to excellent enantiocontrol.
Duncan Elizabeth M EM aHaematology Division, South Australia Pathology bSansom Institute for Health Research, University of South Australia, Adelaide, South Australia, - - 2014
The in-vitro lysis of plasma clots in acetic acid generally indicates a Factor XIII deficiency that is confirmed by quantitative assay. However, there are two rare, poorly understood circumstances whereby clot lysis in acid occurs when factor XIII activity levels are normal: the presence of either an atypical antifactor XIII ...
Méndez-García Celia C Departamento de Biología Funcional-IUBA, Universidad de Oviedo, Oviedo, - - 2014
Macroscopic growths at geographically separated acid mine drainages (AMDs) exhibit distinct populations. Yet, local heterogeneities are poorly understood. To gain novel mechanistic insights into this, we used OMICs tools to profile microbial populations coexisting in a single pyrite gallery AMD (pH ∼2) in three distinct compartments: two from a stratified ...
Danä Ladislav L Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovak - - 2014
A new microchip electrophoresis (ME) method for the determination of oxalic, citric, glycolic, lactic, and 2‐ and 3‐ hydroxybutyric acids, indicators of some metabolic and neurological diseases, in cerebrospinal fluid (CSF) was developed. ME separations were performed on a polymethylmethacrylate microchip with coupled channels (CC) at lower pH (5.5) to ...
Moustafa Moustafa Sherief MS Department of Chemistry, Faculty of Science; University of Kuwait, Safat, 13060, P.O. Box 5969, - - 2014
Novel routes for the preparation of 2-amino-4H-pyran-3-carbonitrile 9, amino-arylbenzoic acid ester derivatives 13a,b, 2-aminotetrahydro-4H-chromene-3-carbonitrile 18, 3-amino-4-cyanotetrahydronaphthalene-2-carboxylic acid ester 26 and 4-amino-3,5-dicyanophthalic acid ester derivatives 37a-c were developed. The synthetic methods utilize one-pot reactions of acetylene carboxylic acid esters, α,β-unsaturated nitriles and/or active methylenenitriles in the presence of L-proline or DABCO. ...
Zhao Wei-Ming WM College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450052, China. - - 2014
A novel and efficient silver catalyzed decarboxylative direct C2-alkylation of benzothiazoles with carboxylic acids for the synthesis of 2-alkyl benzothiazoles was developed.
Mandotra S K SK Algology Laboratory, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226 001, India; Department of Biological Sciences, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad, Uttar Pradesh 211 007, India. Electronic address: - - 2014
Present investigation studied the potential of fresh water green microalga Scenedesmus abundans as a feedstock for biodiesel production. To study the biomass and lipid yield, the culture was grown in BBM, Modified CHU-13 and BG-11 medium. Among the tested nitrogen concentration using Modified CHU-13 medium, the highest biomass and lipid ...
Moens Frédéric F Research Group of Industrial Microbiology and Food Biotechnology, Faculty of Sciences and Bioengineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, - - 2014
Four cocoa-specific acetic acid bacteria (AAB) strains, namely Acetobacter pasteurianus 386B, Acetobacter ghanensis LMG 23848(T), Acetobacter fabarum LMG 24244(T), and Acetobacter senegalensis 108B, were analyzed kinetically and metabolically during monoculture laboratory fermentations. A cocoa pulp simulation medium (CPSM) for AAB, containing ethanol, lactic acid, and mannitol was used. All AAB ...
Rath Emma M EM Faculty of Pharmacy, University of Sydney, NSW, 2006, - - 2014
BAMLET (Bovine Alpha-lactalbumin Made LEthal to Tumours) is a member of the family of the HAMLET-like complexes, a novel class of protein-based anti-cancer complexes that incorporate oleic acid and deliver it to cancer cells. Small angle X-ray scattering (SAXS) was carried out on the complex at pH 12, examining the ...
Mittasch Juliane J Interdisciplinary Center for Crop Plant Research, Martin-Luther University Halle-Wittenberg, Hoher Weg 8, D-06120 Halle, - - 2014
A cDNA encoding the ester-forming hydroxybenzoic acid glucosyltransferase UGT84A13 was isolated from a cDNA library of Quercus robur swelling buds and young leaves. The enzyme displayed high sequence identity to resveratrol/hydroxycinnamate and hydroxybenzoate/hydroxycinnamate glucosyltransferases from Vitis species and clustered to the phylogenetic group L of plant glucosyltransferases, mainly involved in ...
Pavlovskaya Tatyana L TL State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, 60, Lenin ave., Kharkov, 61178, - - 2014
The regioselective three-component condensation of azomethine ylides derived from isatins and α-amino acids with acrylamides or aroylacrylic acids as dipolarophiles has been realized through a one-pot 1,3-dipolar cycloaddition protocol. Decarboxylation of 2'-aroyl-2-oxo-1,1',2,2',5',6',7',7a'-octahydrospiro[indole-3,3'-pyrrolizine]-1'-carboxylic acids is accompanied by cyclative rearrangement with formation of dihydropyrrolizinyl indolones.
Henstock J R JR Institute for Science and Technology in Medicine, Keele University, Stoke-on-Trent, ST4 7QB, UK, - - 2014
Silicon is an essential element for healthy bone development and supplementation with its bioavailable form (silicic acid) leads to enhancement of osteogenesis both in vivo and in vitro. Porous silicon (pSi) is a novel material with emerging applications in opto-electronics and drug delivery which dissolves to yield silicic acid as ...
Shuklov Ivan A IA Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29a, 18059 Rostock (Germany), Fax: (+49) 381-1281-5202;. - - 2014
The preparation of racemic or enantioenriched propane-1,2-diol from dilactides, oligolactides, or poly-L-lactic acid (PLLA) is described. The transformation is carried out as tandem reactions in MeOH, covering hydrolysis and subsequent hydrogenation by using copper chromite as a catalyst. The starting material present undesired side products of the PLLA synthesis or ...
Wang Hong-Min HM a Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , - - 2014
Four new triterpenoids, 2-O-acetyl-3-O-(4'-O-acetyl)-α-l-arabinopyranosylmaslinic acid (1), 2-O-acetyl-3-O-(3'-O-acetyl)-α-l-arabinopyranosylmaslinic acid (2), 2-O-acetyl-3-O-(3',4'-O-diacetyl)-α-l-arabinopyranosylmaslinic acid (3), and 3-O-(3'-O-acetyl)-α-l-arabinopyranosyloleanolic acid (4), together with six known triterpenoids, 3-O-(4'-O-acetyl)-α-l-arabinopyranosyloleanolic acid (5), maslinic acid (6), 2-O-acetylmaslinic acid (7), 3-O-acetylmaslinic acid (8), betulinic acid (9), and 2α-hydroxy-3β-O-acetylbetulinic acid (10), were isolated from the EtOAc extract of Garcinia hanburyi resin. ...
Lang Karsten - - 2014
Over the recent years the production of Ehrlich pathway derived chemicals was shown in a variety of hosts such as Escherichia coli, Corynebacterium glutamicum, and yeast. Exemplarily the production of isobutyric acid was demonstrated in Escherichia coli with remarkable titers and yields. However, these examples suffer from byproduct formation due ...
Sun Xiaofeng - - 2014
Supramolecular hydrogels were prepared in the mixtures of biological surfactant sodium deoxycholate (NaDC) and halide salts (NaCl and NaBr) in sodium phosphate buffer. It is very interesting that with the addition of two kinds of amino acids (L-Lysine and L-Arginine) to NaDC/NaX hydrogels, the gel becomes solution at room temperature. ...
Saha Rumpa R Bishnupur K.G. Engineering Institute, Bishnupur, Bankura 722122, WB, India; Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, WB, India. Electronic address: - - 2014
In aqueous acidic media, picolinic acid, 2,2'-bipyridine and 1,10-phenanthroline promoted Cr(VI) oxidation of 1-butanol produces 1-butanal. 1-butanal is separated from mixture by fractional distillation. The anionic surfactant (SDS) and neutral surfactant (TX-100) accelerate the process while the cationic surfactant (CPC) retards the reaction. Combination of bipy and SDS is the ...
Lee Jin-Hyung JH School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of - - 2014
Infection by enterohemorrhagic Escherichia coli O157:H7 (EHEC) is a worldwide problem, and there is no effective therapy. Biofilm formation is closely related to EHEC infection and is also a mechanism of antimicrobial resistance. Antibiofilm screening of 560 purified phytochemicals against EHEC showed that ginkgolic acids C15:1 and C17:1 at 5μg/ml ...
Kevvai Kaspar K Competence Centre of Food and Fermentation Technologies, Akadeemia tee 15a, 12618, Tallinn, Estonia, - - 2014
Lactococcus lactis subsp. lactis IL1403 was grown in medium containing unlabelled free amino acids and (15)N-labelled yeast hydrolysate to gain insight into the role of peptides as a source of amino acids under conditions where free amino acids are abundant. A mathematical model was composed to estimate the fluxes of ...
Shvadchak Volodymyr V - - 2014
α-Synuclein is an 140 amino-acid protein that can switch conformation between intrinsically disordered in solution, helical on membrane, and β-sheet in amyloid fibrils. Using fluorescence of single tryptophan mutants we determined the immersion of different regions of the protein into lipid membranes. Our results suggest the presence of a flexible ...
Tamiaki Hitoshi H Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan. Electronic address: - - 2014
A chlorophyll-a derivative bonded directly with epoxide at the peripheral position of the chlorin π-system was reacted with N-urethane and C-ester protected amino acids bearing an alcoholic or phenolic hydroxy group as well as a carboxy group at the residue to give chlorophyll-amino acid conjugates. The carboxy residues of N,C-protected ...
Ozcan Mehmet Musa MM Department of Food Engineering, Faculty of Agriculture, Selcuk University, 42031 Konya, - - 2014
Free fatty acid contents of sprouted soybean oil were found between 1.26% (Adasoy) and 4.20% (Nazlıcan and Türksoy). Peroxide values (PV) of sprouted soybean oils were found between 1.52meq/kg (Adasoy) and 3.85meq/kg (A3935), while peroxide values of roasted seed oils were determined between 2.52meq/kg (Adasoy) and 4.03meq/kg (Nova). Palmitic, oleic ...
Forrellad Marina Andrea MA Instituto de Biotecnología, CICVyA - INTA, N. Repetto and De los Reseros, Hurlingham 1686, - - 2014
Tuberculosis is one of the leading causes of mortality throughout the world. Mycobacterium tuberculosis, the causative agent of human tuberculosis, has developed several strategies involving proteins and other compounds known collectively as virulence factors to subvert human host defences and invade the human host. The Mce proteins are among these ...
Thyagarajan Tamilselvi T Centre for Chemistry and Biotechnology, Deakin University, Pigdons Road, Waurn Ponds, Victoria 3217, Australia. - - 2014
The utilization of food waste by microorganisms to produce omega-3 fatty acids or biofuel is a potentially low cost method with positive environmental benefits. In the present study, the marine microorganisms Thraustochytrium sp. AH-2 and Schizochytrium sp. SR21 were used to evaluate the potential of breadcrumbs as an alternate carbon ...
Ylitervo Päivi P Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden. - - 2014
The release of inhibitory concentrations of acetic acid from lignocellulosic raw materials during hydrolysis is one of the main concerns for 2nd generation ethanol production. The undissociated form of acetic acid can enter the cell by diffusion through the plasma membrane and trigger several toxic effects, such as uncoupling and ...
Kiyota Hiroshi H Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. - - 2014
Nutrient balance is important for photosynthetic growth and biomass production in microalgae. Here, we investigated and compared metabolic responses of amino acid pools to nitrogen and sulfur starvation in a unicellular model cyanobacterium, Synechocystis sp. PCC 6803, and its mutant nblA1/A2. It is known that NblA1/A2-dependent and -independent breakdown of ...
Scheven Lieneke L Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The - - 2014
Elevated albuminuria as well as an increased serum uric acid concentration is associated with poor cardiovascular outcome. We questioned whether these 2 variables (albuminuria and serum uric concentration) may be interrelated via tubular uric acid reabsorption. Included were 7688 participants of the PREVEND Study, an observational, general population-based cohort study. ...
Katsou Evina E Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, - - 2014
This work evaluated the use of different external carbon sources to promote the via-nitrite nutrient removal from anaerobic effluents. The carbon sources consisted of fermentation liquid produced from the organic fraction of municipal solid waste (OFMSW FL), drainage liquid produced from OFMSW, fermentation liquid produced from vegetable and fruit waste ...
Saifullah Bullo B 0000-0002-0470-6292 Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology(ITMA), Universiti Putra Malaysia, 43400 Serdang, Selangor, - - 2014
Tuberculosis is a lethal epidemic, difficult to control disease, claiming thousands of lives every year. We have developed a nanodelivery formulation based on para-aminosalicylic acid (PAS) and zinc layered hydroxide using zinc nitrate salt as a precursor. The developed formulation has a fourfold higher efficacy of PAS against mycobacterium tuberculosis ...
Angermayr S Andreas SA Molecular Microbial Physiology Group, Swammerdam Institute for Life Sciences, University of Amsterdam and Netherlands Institute of Systems Biology, Science Park 904, 1098 XH Amsterdam, The - - 2014
Molecular engineering of the intermediary physiology of cyanobacteria has become important for the sustainable production of biofuels and commodity compounds from CO2 and sunlight by "designer microbes." The chemical commodity product L-lactic acid can be synthesized in one step from a key intermediary metabolite of these organisms, pyruvate, catalyzed by ...
Nurdin Irwan I 0000-0002-1547-4810 Nanomaterials Engineering Research Group, Advanced Materials Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia ; Department of Chemical Engineering, Lhokseumawe State Polytechnic, Lhokseumawe 24301, - - 2014
Maghemite (γ-Fe2O3) nanoparticles have been synthesized using a chemical coprecipitation method at different nitric acid concentrations as an oxidizing agent. Characterization of all samples performed by several techniques including X-ray diffraction (XRD), transmission electron microscopy (TEM), alternating gradient magnetometry (AGM), thermogravimetric analysis (TGA), dynamic light scattering (DLS), and zeta potential. ...
Kale E - - 2014
The authors' objective was to measure amniotic fluid amino acid concentrations in pregnant women diagnosed as having fetuses with skeletal dysplasia in the second trimester of pregnancy. Eighteen pregnant women who had fetuses with with skeletal dysplasia detected by ultrasonography (skeletal dysplasia) in the second trimester and 35 women who ...
Rudnicki Witold R WR Interdisciplinary Centre for Mathematical and Computational Modelling, Warsaw University, Warsaw, - - 2014
That amino acid properties are responsible for the way protein molecules evolve is natural and is also reasonably well supported both by the structure of the genetic code and, to a large extent, by the experimental measures of the amino acid similarity. Nevertheless, there remains a significant gap between observed ...
Ni Liang L Key Laboratory o f Polluted Environment Remediation a nd Ecological Health, Ministry of Education, College of Natural Resources and Environmental Science, Zhejiang University, Hangzhou, China - - 2014
In this study, we measured the composition and free radical scavenging activity of several species of nuts, namely, Torreya grandis, Carya cathayensis, and Myrica rubra. The nut kernels of the aforementioned species are rich in fatty acids, particularly in unsaturated fatty acids, and have 51% oil content. T. grandis and ...
Dobaradaran Sina - - 2014
Trichloroethene and tetrachloroethene are the most common pollutants in groundwater and two of the priority pollutants listed by the U.S. Environmental Protection Agency. In previous studies on TCE and PCE photolysis and photochemical degradation, concentration ranges exceeding environmental levels by far with millimolar concentrations of TCE and PCE have been ...
Okazaki Fumiko F Kyoto Women's - - 2014
A direct competitive (dc)-ELISA was developed for rapid and simple determination of chlorothalonil residue in vegetables. A carboxylic acid derivative of pentachlorophenol was used to prepare an anti-chlorothalonil monoclonal antibody (MoAb) that showed adequate reactivity for dc-ELISA. Before homogenization of vegetable samples, phosphoric acid was added (vegetable-10% phosphoric acid (2 ...
Scheven Lieneke - - 2014
Elevated albuminuria as well as an increased serum uric acid concentration is associated with poor cardiovascular outcome. We questioned whether these 2 variables (albuminuria and serum uric concentration) may be interrelated via tubular uric acid reabsorption. Included were 7688 participants of the PREVEND Study, an observational, general population-based cohort study. ...
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