Results 201 to 210 of about 310,357 (268)
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Bioremediation of organophosphorus pesticides in contaminated foodstuffs using probiotics
, 2021Organophosphorus pesticides (OPPs) are widely used to control agricultural and domestic pests. Exposure to OPP residues poses serious health threats to human health through consumption of contaminated foods and water.
Z. Sarlak +5 more
semanticscholar +1 more source
, 2021
A graphene/chitosan/parathion multi-residue electrochemical biosensor was prepared by combining the formation of phosphorylated acetylcholinesterase (AChE) between organophosphorus molecules and AChE as well as the excellent conductivity of graphene, and
Xiaoming Xie +4 more
semanticscholar +1 more source
A graphene/chitosan/parathion multi-residue electrochemical biosensor was prepared by combining the formation of phosphorylated acetylcholinesterase (AChE) between organophosphorus molecules and AChE as well as the excellent conductivity of graphene, and
Xiaoming Xie +4 more
semanticscholar +1 more source
Contact dermatitis from organophosphorus pesticides
Contact Dermatitis, 2001Keywords: allergic contact dermatitis; organophosphorus pesticides; chlorpyriphos-methyl; fenthion; methidathion; parathion-methyl; malathion; cross-sensitivity; occupational ...
BONAMONTE, Domenico +4 more
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Chemical engineering research & design, 2020
The advanced oxidation processes (AOPs), as an alternative technology to eliminate pesticides from aqueous environments, consist of several groups of technologies that have been used with high efficiency in the treatment of water and wastewater in recent
Mohammad Malakootian +4 more
semanticscholar +1 more source
The advanced oxidation processes (AOPs), as an alternative technology to eliminate pesticides from aqueous environments, consist of several groups of technologies that have been used with high efficiency in the treatment of water and wastewater in recent
Mohammad Malakootian +4 more
semanticscholar +1 more source
ALKYLATION OF DNA BY ORGANOPHOSPHORUS PESTICIDES
Acta Pharmacologica et Toxicologica, 1979Methods for the detection of in vivo alkylation of nucleic acids are discussed. Alkylation of mammalian DNA at N‐7 of guanine provides the most sensitive and least equivocal evidence of methylation by an exogenous chemical or its metabolite. No 7‐methylguanine was detected in the combined DNA from the lungs, livers, hearts, brains, kidneys, testes and ...
M F, Wooder, A S, Wright
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Biodegradation of organophosphorus pesticides by surface-expressed organophosphorus hydrolase
Nature Biotechnology, 1997Organophosphorus hydrolase (OPH) was displayed and anchored onto the surface of Escherichia coli using an Lpp-OmpA fusion system. Production of the fusion proteins in membrane fractions was verified by immunoblotting with OmpA antisera. Inclusion of the organophosphorus hydrolase signal sequence was necessary for achieving enzymatic activity on the ...
R D, Richins +3 more
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Food Chemistry, 2020
Facile enrichment and determination of trace organophosphorus pesticides (OPPs) in foods has been a constantly pursuing goal in food safety field. Herein, Zr4+-immobilized covalent organic frameworks (Fe3O4@COF@Zr4+) have been first constructed and ...
Guoliang Li +4 more
semanticscholar +1 more source
Facile enrichment and determination of trace organophosphorus pesticides (OPPs) in foods has been a constantly pursuing goal in food safety field. Herein, Zr4+-immobilized covalent organic frameworks (Fe3O4@COF@Zr4+) have been first constructed and ...
Guoliang Li +4 more
semanticscholar +1 more source
Postmortem blood concentrations of organophosphorus pesticides
Forensic Science International, 2009Cases involving acute fatalities due to ingestion of organophosphorus pesticides (OPs), such as chlorpyrifos, diazinon, malathion and parathion, are presented. Solid-phase extraction (SPE) and gas chromatography/mass spectrometry (GC/MS) were used for the analysis of OPs in postmortem blood.
Mee-Jung, Park +5 more
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Food Chemistry, 2020
There has been increasing recent concern about the agricultural use of organophosphorus pesticides. A rapid and sensitive fluorescence assay for the detection of three organophosphorus pesticides has therefore been developed using 6-carboxy-fluorescein ...
Mingdi Jiang +4 more
semanticscholar +1 more source
There has been increasing recent concern about the agricultural use of organophosphorus pesticides. A rapid and sensitive fluorescence assay for the detection of three organophosphorus pesticides has therefore been developed using 6-carboxy-fluorescein ...
Mingdi Jiang +4 more
semanticscholar +1 more source
Polyamide layer chromatography of organophosphorus pesticides
Journal of Chromatography A, 1969Abstract The separation of nineteen organophosphorus pesticides by one-dimensional and two-dimensional chromatography and their detection on polyamide layers were investigated. A comparison was made between the detection limits on polyamide and silica gel layers, and this showed the advantages of polyamide layer chromatography.
K, Nagasawa, H, Yoshidome
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