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显示 1-30 共 267 条结果 关于 "401765" 范围 论文
Toshiki Matsui et al.
Acta biomaterialia, 13, 32-41 (2014-12-03)
Polylactic acid (PLA) is a candidate material to prepare scaffolds for 3-D tissue regeneration. However, cells do not adhere or proliferate well on the surface of PLA because it is hydrophobic. We report a simple and rapid method for inducing
Jiaqi Shi et al.
Environmental science and pollution research international, 20(9), 6138-6149 (2013-04-03)
The lethal doses (LD50s) of fluorinated, chlorinated, brominated, and iodinated benzene, phenol, and diphenyl ether in mice were ascertained respectively under the consistent condition. The acute toxicity of four benzenes orders in fluorobenzene (FB) < iodobenzene < chlorobenzene≈bromobenzene, that of four phenols orders in
Wei-Wei Zhao et al.
Journal of chromatography. A, 1370, 121-128 (2014-12-03)
Metal-organic frameworks (MOFs) have great potential for applications in chromatography due to their highly tailorable porous structures and unique properties. In this work, the stable MOF UiO-66 was evaluated as both a normal-phase (NP-) and a reverse-phase (RP-) stationary phase
Pamela R D Williams et al.
Critical reviews in toxicology, 41(2), 111-142 (2011-02-04)
There is growing emphasis in the United States and Europe regarding the quantification of dermal exposures to chemical mixtures and other substances. In this paper, we determine the dermal flux of benzene in neat form, in organic solvents, and in
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
Xavier Moreel et al.
Cancer prevention research (Philadelphia, Pa.), 7(7), 766-776 (2014-05-16)
The association between omega-3 (ω-3) fatty acids and prostate cancer has been widely studied. However, little is known about the impact of prostate tissue fatty acid content on prostate cancer progression. We hypothesized that compared with the estimated dietary ω-3
Deborah C Glass et al.
Occupational and environmental medicine, 71(4), 266-274 (2014-02-18)
Benzene exposure has been associated with increased risk of leukaemia and myelodysplastic syndrome. Existing studies are sparse for other lymphohaematopoietic cancer subtypes, such as myeloproliferative disease (MPD) and the related chronic myeloid leukaemia (CML). We pooled data from three petroleum
Peter F Infante
American journal of industrial medicine, 54(2), 157-164 (2011-01-25)
I have been familiar with the toxicological and epidemiological literature on benzene since I was a member of the NIOSH Benzene Task Force in 1975. I also am familiar with the procedures of IARC Monographs meetings from past participation, and
Anett Kondor et al.
Journal of chromatography. A, 1362, 250-261 (2014-09-03)
Adsorption isotherm data of some alkyl aromatic hydrocarbons (benzene, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene) measured in the temperature range of 423-523K on a partially dealuminated faujasite type DAY F20 zeolite by inverse gas chromatography are presented in this work.
Mathieu Valcke et al.
Journal of toxicology and environmental health. Part A, 78(7), 409-431 (2015-03-19)
The objective of this study was to compare the magnitude of interindividual variability in internal dose for inhalation exposure to single versus multiple chemicals. Physiologically based pharmacokinetic models for adults (AD), neonates (NEO), toddlers (TODD), and pregnant women (PW) were
Cheng Peng et al.
Journal of hazardous materials, 284, 10-18 (2014-12-03)
BTEX is a group of volatile organic compounds consisting of benzene, toluene, ethylbenzene and xylenes. Environmental contamination of BTEX can occur in the groundwater with their effects on the aquatic organisms and ecosystem being sparsely studied. The aim of this
A Szopa et al.
Die Pharmazie, 70(5), 337-339 (2015-06-13)
Three dibenzocyclooctadiene lignans: deoxyschizandrin (1), gomisin A (2) and schizandrin (3) were isolated from biomass extracts of Schisandra chinensis (Turcz.) Baill. shoot-differentiating callus cultures. The mentioned lignans were not isolated earlier from in vitro cultures of this plant species. This
Lihong Li et al.
Journal of molecular neuroscience : MN, 56(4), 858-867 (2015-03-03)
Microglia activation plays an important role in neuroinflammation. Sirtuin1 (SIRT1) has been shown to play a role in regulation of inflammation. Resveratrol, a potent SIRT1 activator, has anti-inflammation property. MicroRNA (miRNA or miR) related to inflammation pathways has been shown
Paik Wah Chow et al.
Toxicology and applied pharmacology, 284(1), 8-15 (2015-02-04)
Hematopoietic stem cells (HSCs) and hematopoietic progenitor cells (HPCs) are sensitive targets for benzene-induced hematotoxicity and leukemogenesis. The impact of benzene exposure on the complex microenvironment of HSCs and HPCs remains elusive. This study aims to investigate the mechanism linking
Viroj Wiwanitkit et al.
Leukemia & lymphoma, 45(8), 1643-1645 (2004-09-17)
Benzene is a colorless poisonous liquid with a sweet odor. At present, it is documented as a known inducer of leukemia. Potential metabolic mechanisms underlying the hemopoietic toxicity of benzene include bioactivation of phenolic metabolites of benzene by myeloperoxidases in
M Bader et al.
Toxicology letters, 231(3), 328-336 (2014-10-08)
Human biomonitoring (HBM) is frequently used for the analysis and assessment of exposure to chemicals under routine working conditions. In recent years, HBM has also been applied to monitor the exposure of the general population, and of emergency responders in
Sean M Hays et al.
Regulatory toxicology and pharmacology : RTP, 62(1), 62-73 (2011-12-20)
Biomonitoring Equivalents (BEs) are defined as the concentration or range of concentrations of a chemical or its metabolite in a biological medium (blood, urine, or other medium) that is consistent with an existing health-based exposure guideline such as a reference
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
F Brugnone et al.
The Science of the total environment, 235(1-3), 247-252 (1999-10-27)
The occupational airborne exposure to benzene of 150 workers employed in petrol stations and a refinery plant was assessed using personal sampling pumps. All workers provided blood samples after the end of work and on the following morning before resuming
Wen-Hsi Cheng et al.
Journal of the Air & Waste Management Association (1995), 64(4), 488-493 (2014-05-23)
In this study, gaseous benzene, toluene, ethylbenzene, and o-xylene (BTEX) were extracted by passive needle trap samplers (NTS) using divinylbenzene (DVB) particles (mesh sizes 60-80, 80-100, and 100-120, respectively) as packed sorbents. An aspirating pump measured sampling flow rates of
Hera Chaudhry et al.
BioMed research international, 2015, 708691-708691 (2015-09-09)
Nigella sativa L. (family Ranunculaceae) is an annual herb of immense medicinal properties because of its major active components (i.e., thymoquinone (TQ), thymohydroquinone (THQ), and thymol (THY)). Plant tissue culture techniques like elicitation, Agrobacterium mediated transformation, hairy root culture, and
Caitlin M Glover et al.
Chemosphere, 111, 596-602 (2014-07-07)
Due to the large quantities of dispersants used during the Deepwater Horizon spill in 2010, there were immediate concerns with regards to the fate and transport of the mixture in ocean waters. Direct and sensitized photolysis experiments were carried out
Peter R Makgwane et al.
Journal of nanoscience and nanotechnology, 13(7), 5053-5060 (2013-08-02)
The promotional effect of nanosized Ru, Fe, Au, and Mn particles on VOHPO4 x 0.5H2O (VHP) catalytic properties was investigated in benzene hydroxylation reaction using hydrogen hydroperoxide (H2O2) as oxidant. Catalytic results indicated a profound effect of the nanoparticle dopants
Seiko Nakagawa
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 29(3), 377-380 (2013-03-12)
The reaction of the hydroxy radical with thymidine and poly-hydroxy benzenes; i.e., catechol, resorcinol, hydroquinone, and pyrogallol, was studied by ESR spin trapping combined with the UV-A photolysis of hydrogen peroxide. The obtained relative reaction rates reasonably agreed with those
Parisa Ebrahimi et al.
Chemosphere, 93(1), 54-60 (2013-06-05)
Some dialkoxybenzenes are promising new insect control agents. These compounds mimic naturally occurring odorants that modulate insect behavior. Before applying these compounds, however, their persistence and biodegradability at the application site and in the environment should be understood. The fate
Joanna Faber et al.
Journal of environmental sciences (China), 25(11), 2324-2330 (2014-02-21)
The aim of this work was to determine the level of benzene, toluene, o-xylene and m, p-xylene (BTX) in air samples collected from the cabins of new and used vehicles of the same model. Ten new vehicles were examined in
Ming Li et al.
Bioresource technology, 169, 447-454 (2014-08-01)
In this study, various alkali-pretreated lignocellulose enzymatic hydrolyses were evaluated by using three standard pairs of Miscanthus accessions that showed three distinct monolignol (G, S, H) compositions. Mfl26 samples with elevated G-levels exhibited significantly increased hexose yields of up to
Factors affecting formulation characteristics and stability of ascorbic acid in water-in-oil creams.
M A Sheraz et al.
International journal of cosmetic science, 36(5), 494-504 (2014-07-30)
The present investigation is based on the formulation of water-in-oil (w/o) cream preparations of ascorbic acid (AA) at pH 4-6 using different emollients and humectants. The preparations were stored in the dark at 30°C for a period of 3 months and
Murthy Jonnada et al.
Journal of chromatography. A, 1409, 166-172 (2015-08-01)
An organic monolithic column based on the co-polymerization of 2-naphthyl methacrylate (NAPM) as the functional monomer and trimethylolpropane trimethacrylate (TRIM) as the crosslinker was introduced for high performance reversed-phase liquid chromatography (RPC). The co-polymerization was performed in situ in a
Subhamay Pramanik et al.
Analytica chimica acta, 793, 99-106 (2013-08-21)
Aggregates of hexaphenylbenzene derivatives 3, having pyrene groups form network of fluorescent nanofibres in presence of mercury ions. Further, fluorescent nanofibres of 3-Hg(2+) supramolecular ensemble exhibit sensitive and pronounced response towards the picric acid. In addition, the solution coated paper
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