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Showing 1-30 of 35 results for "256412" within Papers
Jian Jiang et al.
Huan jing ke xue= Huanjing kexue, 29(6), 1655-1659 (2008-09-04)
Pseudomonas nitroreducens J5-1 is able to use monochlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene and 1,2,4-trichlorobenzene as sole carbon and energy sources, and it differs from those 1,2,4-trichlorobenzene degrading bacteria reported in substrate utilizing characters. PCR technique was used to amplify the genes of
Youngdo Jeong et al.
Chemical communications (Cambridge, England), 47(44), 12077-12079 (2011-10-15)
Emulsions stabilized by enzyme-nanoparticle (NP) complexes were used to fabricate robust biocatalytic scaffolds after core solidification via crosslinking. These biocatalysts feature ease of formation, high retention of enzymatic activity and reusability.
Angélique San Miguel et al.
Ecotoxicology (London, England), 21(2), 315-324 (2011-09-29)
A 7-day-exposure time experiment was designed to investigate the phytotoxicity of chlorobenzenes (CBs) on Zea mays seedlings, focusing on the growth and generation of oxidative stress. Significant growth inhibition (based on biomass gain) was observed for exposure to monochlorobenzene (MCB)
Sevil Calişkan Eleren et al.
Bioresource technology, 100(23), 5714-5720 (2009-07-29)
The effects of phenol, 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP) and 1,2,4-trichlorobenzene (1,2,4-TCB) on the biodegradation kinetics of the conventional activated sludge system (CASS) and the selector activated sludge system (SASS) were investigated. Experiments were carried out using a respirometric method on
Ernest Marco-Urrea et al.
Journal of hazardous materials, 166(2-3), 1141-1147 (2009-01-31)
The degradation of 1,2,3-, 1,3,5- and 1,2,4-trichlorobenzene (TCB) by the white-rot fungus Trametes versicolor was studied. Time course experiments showed a degradation rate of 2.27 and 2.49 nmol d(-1)mg(-1) dry weight of biomass during the first 4d of incubation in
Stacey D Finley et al.
Biotechnology and bioengineering, 104(6), 1086-1097 (2009-08-04)
As increasing amounts of anthropogenic chemicals are released into the environment, it is vital to human health and the preservation of ecosystems to evaluate the fate of these chemicals in the environment. It is useful to predict whether a particular
Roger Lille-Langøy et al.
Toxicology and applied pharmacology, 284(1), 54-64 (2015-02-15)
Many persistent organic pollutants (POPs) accumulate readily in polar bears because of their position as apex predators in Arctic food webs. The pregnane X receptor (PXR, formally NR1I2, here proposed to be named promiscuous xenobiotic receptor) is a xenobiotic sensor
Shi-jin Wu et al.
Ecotoxicology and environmental safety, 76(2), 175-181 (2011-10-04)
Adult Eisenia fetida earthworms were exposed to sub-lethal concentrations of 1,2,4-trichlorobenzene to assess the toxicity of contaminated soils. The LC₅₀ of 1,2,4-TCB at 7 and 14 d were 945±175 and 890±169 mg kg⁻¹. A lower dose of 1,2,4-TCB (25 mg
The effect of trichlorobenzene solvent geometry on the morphologies of C60 nano/microcrystals produced from solution.
Liu DD, et al.
Materials Research Bulletin, 73, 65-69 (2016)
Bofan Yu et al.
Journal of chromatography. A, 1356, 221-229 (2014-07-07)
For the expanded application area, fast trace analysis of certain high boiling point (i.e., 150-250 °C) volatile organic compounds (HVOCs) in water, a large volume-direct aqueous injection-gas chromatography (LV-DAI-GC) method was optimized for the following parameters: packed sorbent for sample
Sorption and cosorption of 1, 2, 4-trichlorobenzene and tannic acid by organo-clays.
Dentel SK, et al.
Water Research, 32(12), 3689-3697 (1998)
Jie Cao et al.
The Science of the total environment, 409(11), 2336-2341 (2011-03-29)
Monodispersed carboxymethyl cellulose (CMC)-stabilized Fe-Cu bimetal nanoparticles with an average diameter of less than 20nm were successfully synthesized by a modified water-based approach. The as-resulting particles exhibit a core-shell structure and are quite uniform in size and shape. Batch experiments
Anke Wagner et al.
Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 368(1616), 20120317-20120317 (2013-03-13)
The remarkable capacity of the genus Dehalococcoides to dechlorinate a multitude of different chlorinated organic compounds reflects the number and diversity of genes in the genomes of Dehalococcoides species encoding reductive dehalogenase homologues (rdh). Most of these genes are located
Xiaoming Liang et al.
Environmental science & technology, 45(19), 8321-8327 (2011-08-20)
Stable carbon isotope fractionation is a valuable tool for monitoring natural attenuation and to establish the fate of groundwater contaminants. In this study, we measured carbon isotope fractionation during aerobic and anaerobic degradation of two chlorinated benzenes: monochlorobenzene (MCB) and
Lei Song et al.
Huan jing ke xue= Huanjing kexue, 30(2), 606-609 (2009-05-01)
The chlorocatechol 1,2-dioxygenase gene, designated as tcbC (J5-2) (GenBank Accession No. EF111021), was cloned from total DNA of Pseudomonas aeruginosa J5-2 which can degrade 1,2,4-trichlorobenzene. The deduced amino acid sequence analysis of tcbC (JS-2) shows that it is different from
Shijing Lin et al.
Journal of hazardous materials, 192(3), 1697-1704 (2011-07-30)
Co(3)O(4) was synthesized with cabbage-like, plate-like and sphere-like morphologies. The effect of different morphologies on the degradation of 1,2,4-trichlorobenzene (1,2,4-TrCB) was evaluated, and the cabbage-like Co(3)O(4) exhibited the highest reactivity. The degradation of 1,2,4-TrCB on the cabbage-like Co(3)O(4) is hypothesized
Christine L Kielb et al.
Environmental research, 110(3), 220-225 (2010-02-02)
Love Canal, in Niagara Falls, NY is among the earliest and most significant hazardous waste sites in the USA, but no study has ever measured chemical body burdens in nearby residents to document that human exposure occurred. This study measured
Ernest Marco-Urrea et al.
Bioresource technology, 100(23), 5757-5762 (2009-07-21)
Extracellular hydroxyl radical ((*)OH) production via quinone redox cycling in Trametes versicolor, grown in a chemically defined medium, was investigated to degrade trichloroethylene (TCE), perchloroethylene (PCE), 1,2,4- and 1,3,5-trichlorobenzene (TCB). The activity of the enzymes catalyzing the quinone redox cycle
Synthesis and characterization of several Ni/NiAl2O4 catalysts active for the 1, 2, 4-trichlorobenzene hydrodechlorination.
Cesteros Y, et al.
Applied Catalysis. B, Environmental, 25(4), 213-227 (2000)
Nynke I Kramer et al.
Chemical research in toxicology, 23(11), 1806-1814 (2010-10-22)
Hydrophobic and volatile chemicals have proven to be difficult to dose in cell assays. Cosolvents are often needed to dissolve these chemicals in cell culture medium. Moreover, the free concentration of these chemicals in culture medium may diminish over time
Fang Wang et al.
Chemosphere, 92(11), 1403-1409 (2013-04-23)
The objective of the present study was to get more insight into the mechanisms that govern the high mineralization potential of a microbial community attached on a carrier material, as we found in an earlier study (Wang et al., 2010).
Cailin Ge et al.
Journal of environmental sciences (China), 20(3), 309-319 (2008-07-04)
The proteomic analysis of rice (Oryza sativa L.) roots and leaves responding to 1,2,4-trichlorobenzene (TCB) stress was carried out by two dimensional gel electrophoresis, mass spectrometric (MS), and protein database analysis. The results showed that 5 mg/L TCB stress had
Bacterial cultures preferentially removing singly flanked chlorine substituents from chlorobenzenes.
Tina Hölscher et al.
Environmental science & technology, 44(23), 8936-8942 (2010-11-04)
The wide though not ubiquitous distribution of chlorobenzene-dechlorinating bacteria in anaerobic sludge from German sewage plants is demonstrated. The model substrates 1,2,3- and 1,2,4-trichlorobenzene (TCB) were dechlorinated to dichlorobenzenes (DCBs) and monochlorobenzene (MCB) via distinct pathways. For easy visualization and
Hongmei Hu et al.
Journal of chromatographic science, 52(5), 375-382 (2013-05-07)
A simple, rapid, sensitive and high throughput method is described, based on solid-phase disk extraction (SPDE) and gas chromatography-electron capture detection, for the determination of chlorobenzens (CBs) in water samples. The proposed SPDE sample pretreatment method was initially optimized and
Vijai Elango et al.
Chemosphere, 84(2), 247-253 (2011-05-03)
Using inoculum from a microcosm study that exhibited aerobic transformation of cis-1,2-dichloroethene (cDCE) and trichloroethene (TCE) commensurate with biodegradation of monoaromatic compounds, enrichment cultures were developed by providing benzene, chlorobenzene (CB), dichlorobenzene (DCB) isomers and 1,2,4-trichlorobenzene as carbon and energy
Yanling Qiu et al.
Chemosphere, 75(1), 78-82 (2009-01-21)
An existing substitution reaction method was improved as part of a system to measure the persistency of selected chemicals in the environment by evaluating their chemical reactivity. Hexachlorobenzene (HCB), pentachlorobenzene, 1,2,4,5-tetrachlorobenzene and 1,2,4-trichlorobenzene were selected as model compounds. Sodium methoxide
Jin Chul Joo et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 46(9), 1008-1019 (2011-08-19)
The use of a calibrated two-component model with a single blocking parameter for both adsorption onto mineral surfaces and partitioning into soil organic matter of two nonpolar sorbates (i.e., 1,2,4-trichlorobenzene and benzene) was evaluated by using several humic acid (HA)-coated
Christopher P Junk et al.
The Journal of organic chemistry, 80(3), 1523-1532 (2015-01-13)
The title fluoroalkene has been generated by dehalogenation of dibromide and diiodide precursors and trapped in situ. retro-Diels-Alder reaction of its adduct with N-benzylpyrrole has made the alkene available in high yield and purity. In sharp contrast to its extremely
Lars Elsgaard
Chemosphere, 79(10), 1003-1009 (2010-04-10)
The effect and persistence of six organic xenobiotics was tested under sulfate-, iron-, and nitrate-reducing conditions in primary sewage sludge suspensions. The xenobiotics tested were acenaphthene, phenanthrene, di(2-ethylhexyl)phthalate (DEHP), 4-nonylphenol (4-NP), linear alkylbenzene sulfonate (LAS), and 1,2,4-trichlorobenzene (1,2,4-TCB) added to
Michiro Tabata et al.
Bioscience, biotechnology, and biochemistry, 75(3), 466-472 (2011-03-11)
A γ-hexachlorocyclohexane (HCH)-degrading bacterium, Sphingomonas sp. MM-1, was isolated from soil contaminated with HCH isomers. Cultivation of MM-1 in the presence of γ-HCH led to the detection of five γ-HCH metabolites, γ-pentachlorocyclohexene, 2,5-dichloro-2,5-cyclohexadiene-1,4-diol, 2,5-dichlorohydroquinone, 1,2,4-trichlorobenzene, and 2,5-dichlorophenol, strongly suggesting that
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