Synthesis and characterization of metal sulfide clusters for toxicological studies.

abstract：:The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity....

journal_title：Environmental toxicology and chemistry

authors： Castro VL,Clemente Z,Jonsson C,Silva M,Vallim JH,de Medeiros AMZ,Martinez DST

更新日期：2018-07-01 00:00:00

abstract：:The major toxaphene metabolites in sediment and soils (2-exo,3-endo,6-exo,8,9,10-hexachlorobornane [B6-923] and 2-endo,3-exo,5-endo,6-exo,8,9,10-heptachlorobornane [B7-1001]) were incubated with the isolated gram-negative bacterium Dehalospirillum multivorans. Within 14 d, biotransformation of B7-1001 was nearly quant...

journal_title：Environmental toxicology and chemistry

authors： Ruppe S,Neumann A,Braekevelt E,Tomy GT,Stern GA,Maruya KA,Vetter W

更新日期：2004-03-01 00:00:00

abstract：:Uptake and membrane transport of cadmium (Cd) in roots of the hyperaccumulator Sedum plumbizincicola X.H. Guo et S.B. Zhou ex L.H. Wu was characterized by assessing the impact of various inhibitors and ion channel blockers on Cd accumulation as well as the real-time net Cd2+ flux at the roots with application of the s...

journal_title：Environmental toxicology and chemistry

authors： Li LZ,Tu C,Wu LH,Peijnenburg WJ,Ebbs S,Luo YM

更新日期：2017-04-01 00:00:00

abstract：:The authors used 5 species of periphytic algae to conduct toxicity assays of 20 herbicides. The 5 tested species represent riverine primary producers most likely to be affected by herbicides. A fluorescence microplate toxicity assay was used as an efficient and economical high-throughput assay. Toxicity characteristic...

journal_title：Environmental toxicology and chemistry

authors： Nagai T,Taya K,Yoda I

更新日期：2016-02-01 00:00:00

abstract：:In this study, we assessed and compared the suitability of three in vitro screening tools for the measurement of estrogenic activity in sewage treatment plant effluents (STPEs). These assays were the yeast estrogen screen (YES), production of zona radiata proteins (ZRPs) in trout hepatocytes, and the induction of repo...

journal_title：Environmental toxicology and chemistry

authors： Rutishauser BV,Pesonen M,Escher BI,Ackermann GE,Aerni HR,Suter MJ,Eggen RI

更新日期：2004-04-01 00:00:00

abstract：:The authors conducted column experiments and a modeling study to understand the effects of several environmental factors on the aggregation and transport of graphene oxide nanoparticles (GONPs) in saturated quartz sand. The GONPs were negatively charged and stable under the test conditions (0-50 mM NaCl; pH 4.8-9.0), ...

journal_title：Environmental toxicology and chemistry

authors： Qi Z,Zhang L,Wang F,Hou L,Chen W

更新日期：2014-05-01 00:00:00

abstract：:Natural organic matter (NOM) can interact with engineered nanoparticles (NPs) in the environment and modify their behavior and toxicity to organisms. In the present study, the phytotoxicity of copper oxide (CuO) NPs to rice seedlings in the presence of humic acid as a model NOM was investigated. The results showed tha...

journal_title：Environmental toxicology and chemistry

authors： Peng C,Zhang H,Fang H,Xu C,Huang H,Wang Y,Sun L,Yuan X,Chen Y,Shi J

更新日期：2015-09-01 00:00:00

abstract：:Continuous subchronic exposure experiments were conducted to assess the effects of diazinon, an organophosphate pesticide, on the survival, growth and activity of larvae of the Asian common toad Bufo melanostictus. Two larval stages, the gill stage (Gosner stages 21 and 22) and gill-atrophy stage (Gosner stages 24 and...

journal_title：Environmental toxicology and chemistry

authors： Sumanadasa DM,Wijesinghe MR,Ratnasooriya WD

更新日期：2008-11-01 00:00:00

abstract：:Sorption of chemical substances to nanoparticles (NPs) in the aqueous phase strongly influences NP physicochemisty, and investigations of these complex interactions can provide important insights into the environmental fate of NPs. The objective of the present study was to use differences in copper (Cu) bioavailabilit...

journal_title：Environmental toxicology and chemistry

authors： Patsiou D,Kalman J,Fernandes TF,Henry TB

更新日期：2019-05-01 00:00:00

abstract：:We examined the effects of multigenerational exposure of mercury (Hg) on Hg toxicity and biokinetics in a population of Daphnia magna. After chronic Hg exposure at 3.8 microg Hg/L, the first generation (F0) adults had an elevated 24-h median lethal concentration (LC50) of Hg (76 microg/L) when compared to the control ...

journal_title：Environmental toxicology and chemistry

authors： Tsui MT,Wang WX

更新日期：2005-11-01 00:00:00

abstract：:Oxygen consumption is indicative of an organism's metabolic state, whereby alterations in respiration rate can result from the presence of different stimuli. Here, we develop a novel approach based on quenched fluorescence oxygen sensing and respirometry method for toxicity screening assays using the nematode Caenorha...

journal_title：Environmental toxicology and chemistry

authors： Schouest K,Zitova A,Spillane C,Papkovsky D

更新日期：2009-04-01 00:00:00

abstract：:The Minamata Convention aims to protect human health and the environment from anthropogenic emissions and releases of mercury. In the present study, the provisions of the Minamata Convention are examined to assess their influence on global biogeochemical cycling of Hg. Although the convention's scope covers all major ...

journal_title：Environmental toxicology and chemistry

authors： Selin NE

更新日期：2014-06-01 00:00:00

abstract：:Northern leopard frogs (Rana pipiens) have been disappearing throughout their range. The causes for extirpations have been elusive, although habitat alteration appears to be a major factor. Pesticides have been implicated in declines in western amphibians, but no mechanism has been identified. We tested the hypothesis...

journal_title：Environmental toxicology and chemistry

authors： Distel CA,Boone MD

更新日期：2011-03-01 00:00:00

abstract：:In this study, biphenyl-2,2',6,6'-tetracarbaldehyde, an initial byproduct formed from the ozonation of pyrene, and biphenyl-2,2',6,6'-tetracarboxylic acid, a subsequent pyrene ozonation byproduct, were evaluated using two toxicology assays to compare the toxicity of ozonation byproducts with that of the parent compoun...

journal_title：Environmental toxicology and chemistry

authors： Luster-Teasley SL,Ganey PE,DiOrio M,Ward JS 3rd,Maleczka RE Jr,Trosko JE,Masten SJ

更新日期：2005-03-01 00:00:00

abstract：:Stenotrophomonas sp. CD02 was isolated from a site that previously had been contaminated with high concentrations of the heavy metals cadmium (3 mg kg(-1)) and chromium (115 mg kg(-1)). This strain was able to grow on complex (Luria Bertani) medium containing high concentrations of cadmium ion (up to 4 mM). Additional...

journal_title：Environmental toxicology and chemistry

authors： Chien CC,Hung CW,Han CT

更新日期：2007-04-01 00:00:00

abstract：:Freshwater mussels are among the most sensitive aquatic organisms to many contaminants and have complex life-cycles that include several distinct life stages with unique contaminant exposure pathways. Standard acute (24-96 h) and chronic (28 d) toxicity tests with free larva (glochidia) and juvenile mussels are effect...

journal_title：Environmental toxicology and chemistry

authors： Hazelton PD,Cope WG,Pandolfo TJ,Mosher S,Strynar MJ,Barnhart MC,Bringolf RB

更新日期：2012-07-01 00:00:00

abstract：:As contaminant exposures in aquatic ecosystems continue to increase, the need for streamlining research efforts in environmental toxicology using predictive frameworks also grows. One such framework is the adverse outcome pathway (AOP). An AOP framework organizes and utilizes toxicological information to connect measu...

journal_title：Environmental toxicology and chemistry

authors： Khan B,Ho KT,Burgess RM

更新日期：2020-08-01 00:00:00

abstract：:The estrogenic activity of the effluent from three municipal wastewater treatment plants (WWTPs) in Nanjing, China, was investigated. The water samples were enriched by solid-phase extraction and then eluted with different polar solvents, which gave 11 fractionated extracts. Chemical analysis and a vitellogenin (Vtg) ...

journal_title：Environmental toxicology and chemistry

authors： Lu G,Zhang H,Wang C

更新日期：2010-06-01 00:00:00

abstract：:Metal pollution has been increasing rapidly over the past century, and at the same time, the human population has continued to rise and produce contaminants that may negatively impact pollinators. Honey bees (Apis mellifera L.) forage over large areas and can collect contaminants from the environment. The primary obje...

journal_title：Environmental toxicology and chemistry

authors： Hladun KR,Di N,Liu TX,Trumble JT

更新日期：2016-02-01 00:00:00

abstract：:The availability of literature regarding sublethal and chronic toxicity of heavy metals to early life stages of marine species is restricted to a few species of invertebrate mollusks. The early life stage of abalone, an important gastropod both environmentally and commercially, has been involved in limited research in...

journal_title：Environmental toxicology and chemistry

authors： Gorski J,Nugegoda D

更新日期：2006-05-01 00:00:00

abstract：:Organophosphate and carbamate compounds are among the most widely used pesticides. Contamination of surface water by these compounds is of concern because of potential toxicity to aquatic organisms, especially those at lower trophic levels. In this study we evaluated the persistence of diazinon, chlorpyrifos, malathio...

journal_title：Environmental toxicology and chemistry

authors： Bondarenko S,Gan J,Haver DL,Kabashima JN

更新日期：2004-11-01 00:00:00

abstract：:Despite extensive studies of methylmercury (MeHg) toxicity in birds, molecular effects on birds are poorly characterized. To improve our understanding of toxicity pathways and identify novel indicators of avian exposure to Hg, the authors investigated genomic changes, glutathione status, and oxidative status indicator...

journal_title：Environmental toxicology and chemistry

authors： Jenko K,Karouna-Renier NK,Hoffman DJ

更新日期：2012-11-01 00:00:00

abstract：:Cytochrome P4501A (CYP1A) induction was evaluated in the rat hepatoma cell line H4IIE as a biomarker of exposure to organic compounds. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazoliumbromide assay was performed to assess the viability of cells exposed to environmentally relevant concentrations of cadmium. Cad...

journal_title：Environmental toxicology and chemistry

authors： Jensen MH,Krøkje A

更新日期：2008-08-01 00:00:00

abstract：:The present study characterized the chronic effect of binary-metal mixtures of cadmium (Cd) and zinc (Zn) on Daphnia magna. The titration design was chosen to characterize the 21-d chronic effects of the binary-metal mixtures on survival, growth, reproduction, and metal accumulation in D. magna. Using this design, inc...

journal_title：Environmental toxicology and chemistry

authors： Pérez E,Hoang TC

更新日期：2017-10-01 00:00:00

abstract：:New techniques and software have enabled ubiquitous use of structure-activity relationships (SARs) in the pharmaceutical industry and toxicological sciences. We review the status of SAR technology by using examples to underscore the advances as well as the unique technical challenges. Applying SAR involves two steps: ...

journal_title：Environmental toxicology and chemistry

authors： Tong W,Welsh WJ,Shi L,Fang H,Perkins R

更新日期：2003-08-01 00:00:00

abstract：:The photodegradation rate of the anti-histamine cetirizine (Zyrtec®) was investigated in various water matrices. The average observed first-order photodegradation rate coefficient (kobs ), obtained by linear regression of the logarithmic-transformed cetirizine concentrations versus irradiation time in simulated sunlig...

journal_title：Environmental toxicology and chemistry

authors： Mead RN,Barefoot S,Helms JR,Morgan JB,Kieber RJ

更新日期：2014-10-01 00:00:00

abstract：:Retinoids are known to regulate important processes such as differentiation, development, and embryogenesis. Some effects, such as malformations in frogs or changes in metabolism of birds, could be related to disruption of the retinoid signaling pathway by exposure to organic contaminants. A new reporter gene assay ha...

journal_title：Environmental toxicology and chemistry

authors： Novák J,Benísek M,Pacherník J,Janosek J,Sídlová T,Kiviranta H,Verta M,Giesy JP,Bláha L,Hilscherová K

更新日期：2007-08-01 00:00:00

abstract：:Copper toxicity in different embryonic and larval stages of the common South American toad Rhinella arenarum was evaluated by means of continuous and 24-h pulse treatments in 12 different developmental stages. Lethal concentrations (LC) of 10, 50, and 90% of continuous treatment with Cu from early blastula (S.4), comp...

journal_title：Environmental toxicology and chemistry

authors： Aronzon CM,Sandoval MT,Herkovits J,Pérezcoll CS

更新日期：2011-12-01 00:00:00

abstract：:Estrogenicity of sewage effluents, and related ecotoxicological effects in effluent-receiving environments, have been widely reported over the last 2 decades. However, relatively little attention has been given to other endocrine pathways that may be similarly disrupted by a growing list of contaminants of concern. Fu...

journal_title：Environmental toxicology and chemistry

authors： Roberts J,Bain PA,Kumar A,Hepplewhite C,Ellis DJ,Christy AG,Beavis SG

更新日期：2015-10-01 00:00:00

abstract：:Although many studies have reported that nitroaromatics such as 2,4,6-trinitrotoluene (TNT) have strong mutagenicity, the mechanism of mutagenic activity in these compounds has not yet been reported. We examined the mutagenicity versus reactivity and biodegradation by bacteria using TNT and its analogs (1,3,5-trinitro...

journal_title：Environmental toxicology and chemistry

authors： Maeda T,Nakamura R,Kadokami K,Ogawa HI

更新日期：2007-02-01 00:00:00