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关键词:'227048'
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Marie Meyer-Monath et al.
Talanta, 138, 231-239 (2015-04-13)
Meconium is the first fecal excretion of newborns. This complex accumulative matrix allows assessing the exposure of the fetus to xenobiotics during the last 6 months of pregnancy. To determine the eventual effect of fetal exposure to micropollutants in this
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
Silvia Zarate-Muñoz et al.
Langmuir : the ACS journal of surfaces and colloids, 31(44), 12000-12008 (2015-10-16)
The hydrophobicity of surfactants has been described through different concepts used to guide the formulation of surfactant-water (SW) and surfactant-oil-water (SOW) systems. An integrated framework of hydrophobicity indicators could provide a complete tool for surfactant characterization, and insights on how
Shuangshuang Ding et al.
Environmental science and pollution research international, 22(21), 17171-17181 (2015-07-04)
The objectives of this work are to track the contamination levels, distribution characteristics, and sources of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in atmospheric particulate matter (APM) of Northern China and to provide more comprehensive and fundamental data for
Lihua Zhu et al.
Small (Weinheim an der Bergstrasse, Germany), 11(34), 4385-4393 (2015-06-18)
The design of an ideal heterogeneous catalyst for hydrogenation reaction is to impart the catalyst with synergetic surface sites active cooperatively toward different reaction species. Herein a new strategy is presented for the creation of such a catalyst with dual
Cyclohexane oxidation continues to be a challenge.
Schuchardt ULF, et al.
Applied Catalysis A: General, 211(1), 1382-1386 (2012)
Bao-Dong Cai et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1004, 23-29 (2015-10-07)
In the current study, a novel method for high-throughput and sensitive determination of 12 phytohormones in plants was developed by using sequential solvent induced phase transition extraction (SIPTE) coupled with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). In sequential SIPTE, 0.1%
A A Toropov et al.
European journal of medicinal chemistry, 43(4), 714-740 (2007-07-17)
Simplified molecular input line entry system (SMILES) has been utilized in constructing quantitative structure-property relationships (QSPR) for octanol/water partition coefficient of vitamins and organic compounds of different classes by optimal descriptors. Statistical characteristics of the best model (vitamins) are the
R Zena et al.
Ecotoxicology and environmental safety, 122, 116-125 (2015-08-02)
Polycyclic aromatic hydrocarbons (PAHs) can accumulate in the food chain, due to their lipophilic properties. Fish can accumulate contaminants including PAHs and frequent consumption of such contaminated fish can pose risk to human health. The aim of this study was
Yunyun Xie et al.
Journal of hazardous materials, 297, 66-73 (2015-05-06)
Fibrous cyano-modified mesoporous SiO2 microspheres with specific surface area of ca. 300 m(2) g(-1) have been successfully fabricated respectively by in-situ synthesis and post-modification methods, based on the hydrolysis of ethyl silicate in the presence of (2-cyanoethyl)triethoxysilane at a certain
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
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
R Antony et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 149, 550-557 (2015-05-20)
Chitosan (a biopolymer) anchored Cu(II) and Ni(II) Schiff base complexes, [M(OIAC)Cl2] (M: Cu/Ni and OIAC: ([2-oxo-1H-indol-3-ylidene]amino)chitosan) were electron beam irradiated by different doses (100 Gy, 1 kGy and 10 kGy). The electron beam has shown potential impact on biopolymer's support
Characterizations and performances of Ni/diatomite catalysts for dry reforming of methane.
Jabbour K, et al.
Chemical Engineering Journal, 264, 351-358 (2015)
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
Kerry M Hanson et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 14(9), 1607-1616 (2015-06-03)
The photodegradation of the ultraviolet (UV) filter octyl methoxycinnamate (OMC) is investigated in both dilute solution and in aggregated form. In dilute solution, the ratio of trans and cis isomers achieved at the photostationary state is solvent-dependent because of variations
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.
Samim Sardar et al.
Scientific reports, 5, 17313-17313 (2015-11-28)
Energy harvesting from solar light employing nanostructured materials offer an economic way to resolve energy and environmental issues. We have developed an efficient light harvesting heterostructure based on poly(diphenylbutadiyne) (PDPB) nanofibers and ZnO nanoparticles (NPs) via a solution phase synthetic
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.
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
Radosław Drozd et al.
Biological trace element research, 168(2), 421-428 (2015-06-06)
The aim of the study was to evaluate the effect of low concentrations of selenium in the environment on the activity of selected antioxidant enzymes: Se-GSHPx, total GSHPx, SOD, CAT, and GST as well as fatty acid profile in the
Hana Stiborova et al.
The Science of the total environment, 533, 439-445 (2015-07-17)
Disposal of solid waste to landfills from waste water sewage treatment plants (WWTPs) serves as a potential source of contamination by polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD). Native microbial communities have been found to degrade a variety of xenobiotics
Ahmedou Sidi et al.
Physical chemistry chemical physics : PCCP, 17(28), 18751-18760 (2015-06-30)
This paper is devoted to the characterization of polymer-filler interfaces by thermoporosimetry using water as a probe. Composites of EVA filled with aluminium hydroxide with high filler content for the required fire retardant properties have been studied. After water sorption
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
Riyadh Ahmed Atto AL-Shuaeeb et al.
Organic & biomolecular chemistry, 13(44), 10904-10916 (2015-09-16)
An efficient synthesis of thioglycosylated benzo[e][1,4]oxathiepin-5-one and benzothiazepinone derivatives by a sequence of palladium-catalyzed glycosyl thiol arylation followed by deprotection-lactonization reactions has been reported. This diversity-oriented strategy enabled access to unknown complex cyclic scaffolds with polyhydroxylated appendages of biological interest.
S M Kelleher et al.
Nanotechnology, 26(36), 365703-365703 (2015-08-22)
This paper describes the fabrication of oligonucleotide-coated Cy5-doped silica nanoparticles using a combination of multivalent linkers and their use in surface-based DNA sandwich hybridization assays. Dipodal silane is introduced as a means to fabricate amine-coated silica nanoparticles and its advantages
Ji-Tao Song et al.
Dalton transactions (Cambridge, England : 2003), 44(25), 11314-11320 (2015-05-27)
In this study, silica coated Au nanospheres (Au@SiO2) were prepared by a reverse microemulsion method; subsequently, a layer of fluorescent quantum dots (QDs) were adsorbed onto it and then it was coated with silica again. After modifying with PVP, the
Ángel García-Bermejo et al.
Analytica chimica acta, 889, 156-165 (2015-09-08)
This paper reports on the optimisation, characterisation, validation and applicability of gas chromatography coupled to triple quadrupole mass spectrometry in its tandem operation mode (GC-QqQ(MS/MS) for the quantification of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs, dioxins) and dioxin-like polychlorinated biphenyls (DL-PCBs)
Naoki Itoh et al.
Journal of chromatography. A, 1404, 141-145 (2015-06-11)
A rapid and mild purification method for nanoparticles using the commercially available monolithic silica disk, MonoSpin(®), was developed. The nanoparticles were purified from a dispersed solution by filtration with the aid of centrifugation at 2290×g for 2min. The purification conditions
Lutz Ahrens et al.
Journal of chromatography. A, 1405, 1-11 (2015-06-20)
Five different passive sampler devices were characterized under laboratory conditions for measurement of 124 legacy and current used pesticides in water. In addition, passive sampler derived time-weighted average (TWA) concentrations were compared to time-integrated active sampling in the field. Sampling
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