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Showing 1-30 of 60 results for "650455" within Papers
Susana Grimalt et al.
Analytical and bioanalytical chemistry, 407(11), 3083-3091 (2015-01-30)
The feasibility of the production of a reference material for pesticide residue analysis in a cucumber matrix was investigated. Cucumber was spiked at 0.075 mg/kg with each of the 15 selected pesticides (acetamiprid, azoxystrobin, carbendazim, chlorpyrifos, cypermethrin, diazinon, (α + β)-endosulfan, fenitrothion, imazalil
Jianhua Xu et al.
The journal of physical chemistry. B, 119(11), 4230-4239 (2015-02-25)
Time dependent fluorescence Stokes (emission wavelength) shifts (TDFSS) from tryptophan (Trp) following sub-picosecond excitation are increasingly used to investigate protein dynamics, most recently enabling active research interest into water dynamics near the surface of proteins. Unlike many fluorescence probes, both
Eagleson M.
Concise Encyclopedia Chemistry, 296-296 (1994)
Sandra Yucra et al.
Environmental health : a global access science source, 7, 59-59 (2008-11-19)
Organophosphates are broad class of chemicals widely used as pesticides throughout the world. We performed a cross-sectional study of associations between dialkylphosphate metabolites of organophosphates and semen quality among pesticide applicators in Majes (Arequipa), Peru. Thirty-one men exposed to organophosphate
Joséphine K Ntumba et al.
Lipids, 50(3), 313-322 (2014-12-30)
The total oil production capacity of isano oil is estimated at about 10,000 tons annually. Previous studies of this oil revealed that it is rich in fatty acids including a conjugated diyne moiety. This makes isano oil an excellent candidate
Bin Huang et al.
Environmental science and pollution research international, 21(22), 12898-12908 (2014-07-01)
The occurrence and behavior of endocrine disrupting chemicals (EDCs) in sewage treatment plants (STPs), especially estrogens and phenols, have been closely concerned in previous studies. However, the systematical researches about progestogens and androgens were scarce in STPs adopting different treatment
Thomas Berg et al.
Journal of chromatography. A, 1344, 83-90 (2014-05-02)
Stable isotope-labeled internal standards (SIL-ISs) are often used when applying liquid chromatography-tandem mass spectrometry (LC-MS/MS) to analyze for legal and illegal drugs. ISs labeled with (13)C, (15)N, and (18)O are expected to behave more closely to their corresponding unlabeled analytes
Rebecca L Cordell et al.
Analytical and bioanalytical chemistry, 406(22), 5283-5292 (2014-06-21)
Biomass burning is becoming an increasing contributor to atmospheric particulate matter, and concern is increasing over the detrimental health effects of inhaling such particles. Levoglucosan and related monosaccharide anhydrides (MAs) can be used as tracers of the contribution of wood
Osamu Kiguchi et al.
Journal of chromatography. A, 1370, 246-254 (2014-12-03)
To assess food safety emergencies caused by highly hazardous chemical-tainted foods, simultaneous analysis of organophosphorus insecticides in fatty foods such as precooked foods was conducted using thin-layer chromatography/direct analysis in real time time-of-flight mass spectrometry (TLC/DART-TOFMS) and isotope dilution technique.
Ying Tong et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 978-979, 173-178 (2015-01-01)
To study the systemic exposure of tazarotene formulation after topical administration, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous determination of tazarotene and tazarotenic acid in minipig plasma. Similar extraction recoveries for both analytes
Delphine Parrot et al.
Phytochemical analysis : PCA, 26(1), 23-33 (2014-08-19)
Lichens are self-sustaining partnerships comprising fungi as shape-forming partners for their enclosed symbiotic algae. They produce a tremendous diversity of metabolites (1050 metabolites described so far). A comparison of metabolic profiles in nine lichen species belonging to three genera (Lichina
Masakazu Nagafuku et al.
Glycobiology, 25(3), 303-318 (2014-10-12)
Ganglioside GM3 (Siaα2-3Galβ1-4Glcβ1-1Cer) has been known to participate in insulin signaling by regulating the association of the insulin receptor in caveolae microdomains (lipid rafts), which is essential for the execution of the complete insulin metabolic signaling in adipocytes. Macrophage-secreted factors
Sara Jaffari et al.
Pharmaceutical research, 31(12), 3251-3264 (2014-07-13)
To investigate the agglomeration behaviour of the fine (<5.0 μm) and coarse (>12.8 μm) particle fractions of salmeterol xinafoate (SX) and fluticasone propionate (FP) by isolating aerodynamic size fractions and characterising their physicochemical and re-dispersal properties. Aerodynamic fractionation was conducted
Chao Yu et al.
Journal of hazardous materials, 283, 519-528 (2014-12-03)
Manganese oxide nanoparticles (MnO NPs) have been regarded as a new class of T1-positive contrast agents. The cytotoxicity of silica coated MnO NPs (MnO@SiO2 NPs) was investigated in human cervical carcinoma cells (HeLa) and mouse fibroblast cells (L929). The changes
Michał Szumski et al.
Journal of chromatography. A, 1373, 114-123 (2014-12-04)
A novel, cholesterol-based polymeric monolithic stationary phase for capillary liquid chromatography, was prepared by thermally initiated in-situ polymerization. Cholesteryl methacrylate (CholMA) was used as a functional monomer and trimethylolpropane trimethacrylate (TRIM) was a cross-linker, while azobisisobutyronitrile (AIBN) was an initiator.
Ayşegül Doğan et al.
Materials science & engineering. C, Materials for biological applications, 44, 246-253 (2014-10-05)
Scaffold-based bone defect reconstructions still face many challenges due to their inadequate osteoinductive and osteoconductive properties. Various biocompatible and biodegradable scaffolds, combined with proper cell type and biochemical signal molecules, have attracted significant interest in hard tissue engineering approaches. In
Brian D Fitz et al.
Journal of chromatography. A, 1392, 82-90 (2015-03-31)
Low thermal mass gas chromatography (LTM-GC) was evaluated for rapid, high peak capacity separations with three injection methods: liquid, headspace solid phase micro-extraction (HS-SPME), and direct vapor. An Agilent LTM equipped with a short microbore capillary column was operated at
Vinod Vellora Thekkae Padil et al.
Journal of agricultural and food chemistry, 63(14), 3757-3765 (2015-03-24)
Esterifications of the tree-based gum, gum karaya (GK), using dodecenylsuccinic anhydride (DDSA) were carried out in aqueous solutions. GK was deacetylated using alkali treatment to obtain deacetylated gum karaya (DGK). The DGK and its DDSA derivative were characterized using gel
Hao-Wen Ko et al.
Macromolecular rapid communications, 36(5), 439-446 (2015-01-27)
Multi-component polymer nanomaterials have attracted great attention because of their applications in areas such as biomedicine, tissue engineering, and organic solar cells. The precise control over the morphologies of multi-component polymer nanomaterials, however, is still a great challenge. In this
Liang Meng et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 989, 46-53 (2015-03-25)
Two microextraction techniques based on hollow fiber liquid-phase microextraction (HF-LPME) and ultrasound-assisted low-density solvent dispersive liquid-liquid microextraction (UA-LDS-DLLME) had been applied for the determination of drugs of abuse (methamphetamine, amphetamine, 3,4-methylenedioxymethamphetamine, 3,4-methylenedioxyamphetamine, methcathinone, ketamine, meperidine, and methadone) in urine and
Jie He et al.
Small (Weinheim an der Bergstrasse, Germany), 11(9-10), 1144-1149 (2014-08-08)
Ultrathin tungsten oxide nanobelts are successfully synthesized via a facile solvothermal method. Sub-1 nm thickness and hydrophobic surface property endow the nanobelts with flexibility, viscosity, gelation, and good catalytic performance in oxidative desulfurization.
Cheong Hoon Lee et al.
Talanta, 129, 552-559 (2014-08-17)
Because of the high stability and potential toxic effects of non-steroidal anti-inflammatory drugs (NSAIDs), it is important to closely monitor their concentrations in the environment using a sensitive analytical method. In this study, a simple, rapid, efficient, and sensitive analytical
Victorien Decoin et al.
BMC microbiology, 15, 72-72 (2015-04-18)
Pseudomonas fluorescens strain MFE01 secretes in abundance two Hcp proteins (haemolysin co-regulated proteins) Hcp1 and Hcp2, characteristic of a functional type 6 secretion system. Phenotypic studies have shown that MFE01 has antibacterial activity against a wide range of competitor bacteria
Rajiv L Gaur et al.
PLoS pathogens, 10(9), e1004376-e1004376 (2014-09-19)
Mycobacterium tuberculosis employs various virulence strategies to subvert host immune responses in order to persist and cause disease. Interaction of M. tuberculosis with mannose receptor on macrophages via surface-exposed lipoarabinomannan (LAM) is believed to be critical for cell entry, inhibition
Mehrdad Mohammadpour et al.
Cornea, 33(7), 738-743 (2014-06-03)
The aim of this study was to investigate transmission of topical silicate nanoparticles (SiNPs) through the corneal stroma, anterior chamber, and vitreous fluids by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and inductively coupled plasma atomic emission spectrometry (ICP-AES)
Alessandra Luchini et al.
Physical chemistry chemical physics : PCCP, 17(8), 6087-6097 (2015-02-04)
Nanotechnology for biomedicine has recently attracted increasing interest from the scientific community. In particular, among the different nanodevices suitable for this application, multifunctionalizable hybrid nanoparticles are one of the most investigated research topics. Here we present a detailed physico-chemical characterization
Víctor Sebastian et al.
Nanoscale, 6(21), 13228-13235 (2014-09-27)
Compared to freestanding nanoparticles, supported nanostructures typically show better mechanical stability as well as ease of handling. Unique shapes such as core-shells, raspberries and crescents have been developed on supported materials to gain improved chemical and optical properties along with
Conformational transitions in cyclohexane and benzol.
Melker AI, et al.
SPIE Proc., 5127 (2003)
Teng-Hao Chen et al.
Nature communications, 5, 5131-5131 (2014-10-14)
Metal-organic and covalent organic frameworks are porous materials characterized by outstanding thermal stability, high porosities and modular synthesis. Their repeating structures offer a great degree of control over pore sizes, dimensions and surface properties. Similarly precise engineering at the nanoscale
Orazio A Attanasi et al.
Organic & biomolecular chemistry, 12(26), 4610-4619 (2014-05-23)
A novel and practical two-step approach to an intriguing class of imidazo[1,5-a]pyrazines with exocyclic C=X (X = CH2, O) bonds is described. The process utilizes a sequential three-component reaction of propargyl amine or aminoester, 1,2-diaza-1,3-dienes and isothiocyanates to furnish functionalized
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