Results 21 to 30 of about 3,880 (206)

Advanced Biocatalysts Based on Hexahistidine-Containing Organophosphorus Hydrolase for Chemical and Biological Defense

open access: yesВестник войск РХБ защиты, 2023
The advanced biocatalysts based on hexahistidine-tagged organophosphorus hydrolase (His6-OPH) were recently developed for the detoxification of various organophosphorus compounds and degradation of N-acyl homoserine lactones. Due to enzyme immobilization,
E. N. Efremenko, I. V. Lyagin
doaj   +1 more source

Visible light assisted enzyme-photocatalytic cascade degradation of organophosphorus pesticides

open access: yesGreen Chemical Engineering, 2023
The worldwide application of organophosphorus pesticides (OPs) has promoted agricultural development, but their gradual accumulation in soil and water can seriously affect the central nervous system of humans and other mammals. Organophosphorus hydrolase
Ying Zhang   +9 more
doaj   +1 more source

Conformational variability of organophosphorus hydrolase upon soman and paraoxon binding. [PDF]

open access: yesJ Phys Chem B, 2011
The bacterial enzyme organophosphorus hydrolase (OPH) exhibits both catalytic and substrate promiscuity. It hydrolyzes bonds in a variety of phosphotriester (P-O), phosphonothioate (P-S), phosphofluoridate (P-F), and phosphonocyanate (F-CN) compounds. However, its catalytic efficiency varies markedly for different substrates, limiting the broad-range ...
Gomes DE   +4 more
europepmc   +4 more sources

A new fluorescent technique for pesticide detection by using metal coordination polymer and nanozyme

open access: yesChinese Medicine, 2020
Background Chinese herbs have been widely used for thousands of years. In order to kill or control insects and fungus during the cultivation of herb plants, pesticides have played a significant role.
Jinchao Wei   +7 more
doaj   +1 more source

Organophosphorus Nerve Agents: Types, Toxicity, and Treatments

open access: yesJournal of Toxicology, 2020
Organophosphorus compounds are extensively used worldwide as pesticides which cause great hazards to human health. Nerve agents, a subcategory of the organophosphorus compounds, have been produced and used during wars, and they have also been used in ...
Sudisha Mukherjee, Rinkoo Devi Gupta
doaj   +1 more source

Unveiling chlorpyrifos mineralizing and tomato plant-growth activities of Enterobacter sp. strain HSTU-ASh6 using biochemical tests, field experiments, genomics, and in silico analyses

open access: yesFrontiers in Microbiology, 2022
The chlorpyrifos-mineralizing rice root endophyte Enterobacter sp. HSTU-ASh6 strain was identified, which enormously enhanced the growth of tomato plant under epiphytic conditions.
Md. Azizul Haque   +7 more
doaj   +1 more source

New Trends in Biosensors for Organophosphorus Pesticides

open access: yesSensors, 2001
Biosensors are sensitive and can be used as disposable sensors for environmental control. These biosensors are based either on inhibition of acyl cholinesterases acetylcholinesterase or butyrylcholinesterase) by organophosphorus compounds or on ...
Nicole Jaffrezic-Renault
doaj   +1 more source

Electroanalytical Methods for Detecting Pesticides in Agricultural Products: a Review and Recent Developments

open access: yesInternational Journal of Electrochemical Science, 2020
In modern agricultural production, the extensive use of pesticides plays an irreplaceable and important role in agricultural production because it effectively improves crop yield.
Guobin Chen, Peien Wang
doaj   +1 more source

Molecular Diversity of Chlorpyrifos Degrading Bacteria Isolated from Apple Orchard Soils of Himachal Pradesh

open access: yesJournal of Pure and Applied Microbiology, 2021
A total of seventy-two bacterial isolates were obtained employing enrichment culture technique from apple orchard soils contaminated with chlorpyrifos.
Anish Kumar Sharma   +2 more
doaj   +1 more source

Progress in protein engineering of Organophosphorus hydrolase (OPH)

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The biodegradation of organophosphorus pesticides is characterized by high efficiency, mild reaction conditions, no stimulation, environmental friendliness and no secondary pollution, however, the hydrolysis activity, expression level and thermal stability of wild-type enzymes restrict the practical application of biodegradation
Qiamin Gu   +4 more
openaire   +1 more source

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