Search Within
Applied Filters:
Showing 1-30 of 671 results for "


" within Papers
Yuanzhi Chen et al.
Small (Weinheim an der Bergstrasse, Germany), 11(12), 1460-1469 (2014-10-31)
The combination of metal and semiconductor components in nanoscale to form a hybrid nanocrystal provides an important approach for achieving advanced functional materials with special optical, magnetic and photocatalytic functionalities. Here, a facile solution method is reported for the synthesis
Bei Jiang et al.
Applied biochemistry and biotechnology, 176(6), 1700-1708 (2015-05-29)
A bacterium designated strain JB, able to degrade six benzene, toluene, ethylbenzene, and o-, m-, and p-xylene (BTEX) compounds, was isolated from petroleum-contaminated soil. Taxonomic analyses showed that the isolate belonged to Comamonas, and until now, the genus Comamonas has
Victor K Langsi et al.
Journal of chromatography. A, 1402, 17-26 (2015-06-02)
Nanometer control over the porous shell thickness of sub-2-μm-shell particles is investigated. Three seeded growth mesoporous thin shell particles for HPLC were prepared, with 0.05μm (or 50nm) porous shell layers: particle sizes 1.5μm (solid core diameters 1.4μm), 1.7μm (solid core
Jan Baeten et al.
PloS one, 9(11), e113142-e113142 (2014-11-13)
Frankincense, the oleogum resin from Boswellia sp., has been an early luxury good in both Western and Eastern societies and is particularly used in Christian funerary and liturgical rites. The scant grave goods in late medieval burials comprise laterally perforated
Michael H Abraham et al.
European journal of medicinal chemistry, 43(3), 478-485 (2007-06-05)
Values of in vitro gas to lung partition coefficients, K(lung), of VOCs have been collected from the literature. For 44 VOCs, application of the Abraham solvation equation to log K(lung) yielded a correlation with R(2)=0.968 and S.D.=0.25 log units. Combination
Akio Kamimura et al.
The Journal of organic chemistry, 78(8), 3961-3971 (2013-03-16)
A kinetic investigation of the radical cyclization of N-tert-butyl-o-bromobenzylmethacryl amides to give 2-benzazepines via 7-endo selective cyclization was undertaken. The aryl radical generated from the amide precursor by treatment with Bu3SnH gave the three compounds, which are a 7-endo cyclized
Ruby Bansal et al.
Endocrinology, 155(10), 4104-4112 (2014-07-26)
Polybrominated diphenyl ethers (PBDEs) are routinely found in human tissues including cord blood and breast milk. PBDEs may interfere with thyroid hormone (TH) during development, which could produce neurobehavioral deficits. An assumption in experimental and epidemiological studies is that PBDE
Haijing Wang et al.
Journal of chromatographic science, 53(5), 647-654 (2014-09-17)
Determination of volatile organic compounds (VOCs) in crude oil, such as super volatile organic compounds (super VOCs) and simple polycyclic aromatic hydrocarbons (PAHs), is vital for targeting crude oil spill spots. In this study, a static headspace gas chromatography flame
Cameron L Nemeth et al.
Tissue engineering. Part A, 20(21-22), 2817-2829 (2014-04-23)
We have examined the effects of surface nanotopography and hyaluronic acid (HA) on in vitro chondrogenesis of dental pulp stem cells (DPSCs). Ultraviolet-assisted capillary force lithography was employed to fabricate well-defined nanostructured scaffolds of composite PEG-GelMA-HA hydrogels that consist of
Agnieszka Kucharska et al.
The Science of the total environment, 505, 1062-1071 (2014-12-03)
In this study, we investigated the hypothesis whether externally adsorbed and internally deposited flame retardants (FRs) in hair could be distinguished. To this extent, hair samples collected from one volunteer were exposed under controlled conditions to phosphate FR (PFR) and
Francesco Sasso et al.
Journal of biotechnology, 214, 1-8 (2015-09-02)
Kinetic modelling, molecular modelling, and experimental determination of the initial reaction velocity of lipase-catalyzed alcoholysis were combined to study the effect of the alcohol substrate to catalytic activity. The model system consisted of methanol or ethanol at varying concentrations, vinyl
Karin Björklund et al.
Journal of environmental management, 159, 106-114 (2015-06-13)
Conventional stormwater treatment techniques such as sedimentation and filtration are inefficient for removing the dissolved and colloidal phases of hydrophobic organic compounds (HOCs) present in stormwater. Adsorption could be a promising technique for removing colloidal and dissolved pollutants. Five low-cost
E Passas-Lagos et al.
Langmuir : the ACS journal of surfaces and colloids, 31(28), 7749-7757 (2015-07-15)
Iron-based mushroom-type Janus particles consisting of a poly(sytrene-co-divinylbenzene) and a silica moiety both with controllable morphologies were successfully synthesized on the gram scale and investigated as surfactants for Pickering emulsions. Two oil-water model systems, namely toluene-water and vegetable oil-water, were
Takashi Yarita et al.
Journal of chromatography. A, 1396, 109-116 (2015-04-22)
The impact of the matrix effect in GC-MS quantification of pesticides in food using the corresponding isotope-labeled internal standards was evaluated. A spike-and-recovery study of nine target pesticides was first conducted using paste samples of corn, green soybean, carrot, and
Yi Min et al.
Journal of pharmaceutical and biomedical analysis, 114, 247-253 (2015-06-16)
Superficially porous particles (SPPs) demonstrate superior efficiency than totally porous particles in chiral separations. In order to obtain high efficiency and fast separation, sub-2 μm SPPs with high surface area are synthesized, and with teicoplanin bonded, such materials are successfully
Hiroaki Imoto et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(34), 12105-12111 (2015-07-17)
Aggregation-induced emission (AIE)-active maleimide dyes, namely, 2-p-toluidino-N-p-tolylmaleimide, 3-phenyl-2-toluidino-N-p-tolylmaleimide, 2-p-thiocresyl-3-p-toluidino-N-p-tolylmaleimide, and 2,3-dithiocresyl-N-arylmaleimides, were synthesized by facile synthetic procedures. The dyes show intense emission in the solid state, and emission colors were controlled from green (λmax =527 nm) to orange (λmax =609 nm) by
Anne-Kathrin Siemers et al.
Chemosphere, 122, 105-114 (2014-12-09)
Polycyclic aromatic hydrocarbons (PAHs), heterocyclic PAHs (NSO-HETs), alkylated PAHs and phenols are known as the prevailing contaminants in groundwater at tar contaminated sites. Besides these local sources, the concentrations and the distribution in particular of NSO-HETs in environmental samples, such
Azrina Azlan et al.
BMC public health, 15, 683-683 (2015-07-22)
Exposure to PCDD/PCDF (dioxin and furan) through consumption of fish and shellfish is closely related to the occurrence of skin diseases, such as chloracne and hyperpigmentation. This study aimed to determine the exposure of PCDD/PCDF and its congeners in fish
Rajeev Dattani et al.
Soft matter, 11(16), 3125-3131 (2015-03-06)
We report the phase behaviour of polymer/fullerene/solvent ternary mixtures and its consequence for the morphology of the resulting composite thin films. We focus particularly on solutions of polystyrene (PS), C60 fullerene and toluene, which are examined by static and dynamic
Tiago Palmeira et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(3), 640-648 (2014-12-17)
The luminescence decay of a species in an absorbing medium whose optical thickness changes with time, as occurs with triplet-triplet absorption following excitation cut-off, is studied theoretically and experimentally. A general luminescence decay function based on a distribution of optical
Lu Yangfang et al.
Electrophoresis, 36(17), 2120-2127 (2015-05-21)
Submicron, non-porous, chiral silica stationary phase has been prepared by the immobilization of functionalized β-CD derivatives to isocyanate-modified silica via chemical reaction and applied to the pressurized capillary electrochromatography (pCEC) enantio-separation of various chiral compounds. The submicron, non-porous, cyclodextrin-based chiral
Ursula J Williams et al.
Dalton transactions (Cambridge, England : 2003), 43(43), 16197-16206 (2014-08-26)
The trivalent compound K[Ce[N(SiHMe2)2]4] was synthesized and oxidized, providing a convenient route to the reported cerium(IV) compound Ce[N(SiHMe2)2]4. Protonolysis reactions of Ce[N(SiHMe2)2]4 with tert-butanol, substituted benzyl alcohols, and 2,6-diphenylphenol yielded the neutral tetravalent compounds Ce(O(t)Bu)4(py)2, Ce2(OCH2C6R5)8(thf)2 (R = Me, F)
Eiki Watanabe et al.
Journal of chromatography. A, 1385, 35-41 (2015-02-11)
This paper describes a highly sensitive analytical method using high-performance liquid chromatography and fluorescence detection (HPLC-FLD) capable of quantifying trace amounts of synthetic pyrethroid insecticide etofenprox residue in six vegetable samples: bell pepper, cucumber, eggplant, Japanese mustard spinach, spinach, and
Muna Ali Abdalla
Natural product research, 31(9), 1014-1021 (2016-12-13)
Three new cyclotetrapeptides, named cyclo-(L-Leu-L-Glu-L-Leu-L-Glu) (1) cyclo-(L-Ile-L-Glu-L-Ile-L-Glu) (2) and cyclo-(L-Val-L-Glu-L-Val-L-Glu) (3), were isolated from Streptomyces sp. 447 obtained from endophytic actinobacteria. The producer strain was characterized as Streptomyces sp. by 16s rDNA sequencing. The structures of the three peptides were
Salime Pelin Ertürküner et al.
Pharmacological reports : PR, 66(2), 279-287 (2014-06-10)
Hyperglycemia and advanced glucose end substance (AGE) are responsible for excessive reactive oxygen species (ROS) production, which causes oxidative stress in diabetes mellitus. Oxidative stress and high blood pressure may cause injury and glomerulosclerosis in the kidney. End-stage kidney failure
Katayoun Mahdavi Ara et al.
Journal of food science and technology, 52(7), 4450-4458 (2015-07-04)
Essential oils and fatty acids of Descurainia sophia L. seed were obtained by supercritical CO2 extraction and steam distillation methods. The effect of different parameters such as pressure, temperature, modifier volume, dynamic and static extraction timeon the extraction yield were
António Alves Soares et al.
Environmental monitoring and assessment, 185(10), 8429-8438 (2013-04-09)
Soil vapor extraction (SVE) and bioremediation (BR) are two of the most common soil remediation technologies. Their application is widespread; however, both present limitations, namely related to the efficiencies of SVE on organic soils and to the remediation times of
Daniil Karnaushenko et al.
Advanced materials (Deerfield Beach, Fla.), 27(42), 6582-6589 (2015-09-24)
A novel method relying on strain engineering to realize arrays of on-chip-integrated giant magneto-impedance (GMI) sensors equipped with pick-up coils is put forth. The geometrical transformation of an initially planar layout into a tubular 3D architecture stabilizes favorable azimuthal magnetic
Xuepei Zhang et al.
Journal of chromatography. A, 1359, 84-90 (2014-07-30)
A new approach for proteome-wide profiling drug binding proteins by using monolithic capillary affinity chromatography in combination with HPLC-MS/MS is reported. Two immunosuppresive drugs, namely FK506 and cyclosporin A, were utilized as the experimental models for proof-of-concept. The monolithic capillary
Maria J Misa-Agustiño et al.
Experimental biology and medicine (Maywood, N.J.), 240(9), 1123-1135 (2015-02-05)
Non-ionizing radiation at 2.45 GHz may modify the morphology and expression of genes that codify heat shock proteins (HSP) in the thyroid gland. Diathermy is the therapeutic application of non-ionizing radiation to humans for its beneficial effects in rheumatological and musculo-skeletal
Page 1 of 23
Page 1 of 23