Results 31 to 40 of about 172,482 (220)

RESIDUE ANALYSIS OF ORGANOCHLORINE AND ORGANOPHOSPHORUS PESTICIDES IN URBAN LAKE SEDIMENTS [PDF]

open access: yesEngenharia Agrícola, 2017
The knowledge of pesticide residual concentrations in the environment is important to understand the threats to the environment and human health, especially when natural resources are used for human consumption.
Adir S. Cembranel   +5 more
doaj   +2 more sources

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

Quantum Chemical Approach to the Adsorption of Chlorpyrifos and Fenitrothion on the Carbon-Doped Boron Nitride Nanotube Decorated with Tetrapeptide

open access: yesCrystals, 2022
In the present study, four materials based on boron nitride nanotubes—namely pristine BNNT, C-doped BNNT, tetrapeptide/BNNT, and tetrapeptide/C-doped BNNT—were examined to evaluate adsorption of the organophosphorus pesticides chlorpyrifos and ...
Chien-Lin Lee, Chia Ming Chang
doaj   +1 more source

Investigating organophosphorus pesticides in dates from Khesht City (Iran): Impact of washing and assessment of the health risks

open access: yesApplied Food Research
Dates are rich in nutrients, making them popular all over the world as healthy fruits. Due to the use of pesticides by gardeners to control pests in date palm farms, date fruits may contain pesticides, which could potentially endanger the health of ...
Shamim Mosallaei   +2 more
doaj   +1 more source

Interactions of cyclodextrins and their derivatives with toxic organophosphorus compounds

open access: yesBeilstein Journal of Organic Chemistry, 2016
The aim of this review is to provide an update on the current use of cyclodextrins against organophosphorus compound intoxications. Organophosphorus pesticides and nerve agents play a determinant role in the inhibition of cholinesterases.
Sophie Letort   +4 more
doaj   +1 more source

Development of novel aptasensor based carbon nano dots (CNDs) with FRET mechanism for detection of organophosphorus pesticides

open access: yesApplied Food Research
Pesticide residues organophosphorus have always been a great threat to agricultural production and food safety. Herein, we developed a sensitive and selective sensing system for the detection of pesticides organophosphorus specific diazinon, malathion ...
Sriati Wahyudi   +4 more
doaj   +1 more source

Biosensor for Direct Determination of Fenitrothion and EPN Using Recombinant Pseudomonas putida JS444 with Surface Expressed Organophosphorus Hydrolase. 1. Modified Clark Oxygen Electrode

open access: yesSensors, 2006
This paper reports a first microbial biosensor for rapid and cost-effectivedetermination of organophosphorus pesticides fenitrothion and EPN. The biosensorconsisted of recombinant PNP-degrading/oxidizing bacteria Pseudomonas putida JS444anchoring and ...
Ashok Mulchandani   +3 more
doaj   +1 more source

STUDY OF THE EFFECT OF SOME CARBAMATE AND ORGANOPHOSPHORUS PESTICIDES AGAINST NAILS, Siomphalarla aJexandrina AND Bulinus truncetus AND THEIR CHEMICAL STABILITY IN WATER [PDF]

open access: yesJournal of Plant Protection and Pathology, 2003
Labora\ol'j trials for Ihe controlling two snails species namely Blomphlada alexandrina and Bulinus truncatus were carried out. Three carbamate compounds (Trimelhacarb' Thiodicarb and Melhlocarb) and three organophosphorus compounds (Trichloroton ...
M. EI·Naggar,
doaj   +1 more source

Management of acute organophosphorus pesticide poisoning [PDF]

open access: yesThe Lancet, 2008
Organophosphorus pesticide self-poisoning is an important clinical problem in rural regions of the developing world, and kills an estimated 200,000 people every year. Unintentional poisoning kills far fewer people but is a problem in places where highly toxic organophosphorus pesticides are available. Medical management is difficult, with case fatality
Eddleston, Michael   +3 more
openaire   +4 more sources

Coordination‐Tuned Iridium Single‐Atom Nanozymes Boost Multienzyme Activity for Colorimetric Sensing

open access: yesAdvanced Science, EarlyView.
Breaking the coordination symmetry of Ir single‐atom sites through asymmetric Ir–N3S1 engineering tailors interfacial electron transfer, oxygen activation, and multienzyme‐like catalytic pathways. Operando spectroscopy and theoretical modeling uncover the atomic‐level origin of activity enhancement, providing a strategy for designing multifunctional ...
Tao Li   +10 more
wiley   +1 more source

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