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Organophosphorus hydrolase multilayer modified microcantilevers for organophosphorus detection
Biosensors and Bioelectronics, 2007We report a biosensor based on organophosphorus hydrolase (OPH) multilayer modified microcantilever (MCL) for detection of organophosphorus compounds (OPs). The assay is based on substrate-dependent bending of the OPH functionalized MCLs. The cantilever bending amplitude at equilibrium was a function of the concentration of paraoxon with the dynamic ...
Chandana, Karnati +7 more
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Science of the Total Environment, 2019
The residues of organophosphorus pesticides (OPPs) have been widely detected in rivers, the gulf, and even groundwater and drinking water, which may pose a serious threat to aquatic ecosystems and human health.
Tao Liu +8 more
semanticscholar +1 more source
The residues of organophosphorus pesticides (OPPs) have been widely detected in rivers, the gulf, and even groundwater and drinking water, which may pose a serious threat to aquatic ecosystems and human health.
Tao Liu +8 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
Advances in immunoassays for organophosphorus and pyrethroid pesticides
, 2020Organophosphorus (OP) and pyrethroid (PYR) pesticides are widely used to control various vectors and pests in agriculture, multiple industries, public health, green area servicing, and water reservoirs, among others. OP and PYR exposure cause respiratory,
Jingjing Yao +8 more
semanticscholar +1 more source
ChemInform, 2004
Abstract The impact of organophosphorus chemistry on modern synthetic chemistry is difficult to quantify, but one can safely assume that the study of this element has influenced all areas of chemical endeavour. Organophosphorus chemistry, as a discrete area of study, is the study of compounds containing a C − P bond and this book is ...
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Abstract The impact of organophosphorus chemistry on modern synthetic chemistry is difficult to quantify, but one can safely assume that the study of this element has influenced all areas of chemical endeavour. Organophosphorus chemistry, as a discrete area of study, is the study of compounds containing a C − P bond and this book is ...
openaire +1 more source
Organophosphorus Supramolecular Chemistry. Part 1. Receptors for Organophosphorus Compounds
ChemInform, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Lukasz Berlicki +3 more
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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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Detection of Organophosphorus Compounds by Covalently Immobilized Organophosphorus Hydrolase
Analytical Chemistry, 2006As a consequence of organophosphorus (OP) toxins posing a threat to human life globally, organophosphorus hydrolase (OPH) has become the enzyme of choice to detoxify such compounds. Organophosphorus hydrolase was covalently immobilized onto a quartz substrate for utilization in paraoxon detection.
Jhony, Orbulescu +5 more
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, 2020
Representing tremendous enhancement effect for the Raman signal of trace chemicals, branched gold nanoparticles (Au NPs) are particularly attractive as surface-enhanced Raman spectroscopy (SERS) substrates, though precise morphology control during ...
Dandan Huang +3 more
semanticscholar +1 more source
Representing tremendous enhancement effect for the Raman signal of trace chemicals, branched gold nanoparticles (Au NPs) are particularly attractive as surface-enhanced Raman spectroscopy (SERS) substrates, though precise morphology control during ...
Dandan Huang +3 more
semanticscholar +1 more source
Organophosphorus Xenobiotic Toxicology
Annual Review of Pharmacology and Toxicology, 2017Originally, organophosphorus (OP) toxicology consisted of acetylcholinesterase inhibition by insecticides and chemical threat agents acting as phosphorylating agents for serine in the catalytic triad, but this is no longer the case. Other serine hydrolases can be secondary OP targets, depending on the OP structure, and include neuropathy target ...
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