Using molecular dynamics simulations, we modeled solvation and diffusion in aqueous solutions of organophosphorous compounds, including nerve G-agents sarin and soman (methylphosphonofluoridates) and their common simulants DMMP (dimethyl methylphosphonate) and DIFP (diisopropyl fluorophosphate). The aqueous solutions of the organophosphorous compounds were found to display complex molecular sca...

Resistance to temephos, an organophosphorous insecticide (OP), was found to be low (2-fold) in 2 Culex pipiens populations collected in Sayada (mid-eastern Tunisia). This resistance was synergized by an esterase inhibitor (DEF). Two sets of over-produced esterases (A2-B2 and A4-B4), known to be involved in resistance, were identified in almost 50% of the examined insects. In addition, 3% of ins...

Functional modification of PVA or introducing reactive functional groups into the polymer chain has been believed to have basic significance while expanding its application. Phosphorous containing nitrogen heterocyclic compounds have been synthesized. The synthesized compounds were characterized using FTIR, NMR spectral studies. Thermo gravimetric analysis (TGA) display that organophosphorous-N...

This contribution highlights correlation between the surface concentration of a chemisorbed organophosphorous probe (flavin mononucleotide) and the relative hydroxyl surface coverage of nanostructured ITO electrodes, which can be tuned during post-deposition reductive annealing. The resulting modified electrodes are very stable in aqueous solution, highly hydrophilic and fully-accessible to the...

A simple, efficient, facile and surface mediated method for synthesis of hydrazides of organophosphorous acids has been developed from their corresponding chloridates using calcium oxides as a solid support at room temperature. The developed method gave the desired hydrazides in excellent yields (7592%) and avoids the use of column chromatography.

background: organophosphorus (op) poisoning is a major public health problem in developing world. op pesticides inhibit carboxylic esterase enzymes including plasma cholinesterase (pche). clinical manifestations following op poisoning can be associated with the extent of decrease of pche. this study was designed to investigate the relevance of pche level to clinical manifestations in op poisoni...

A new microengine-based built-in-platform exploiting a surprising dual action with solution mixing and control of the reaction parameters, has been applied for accelerating chemical reactions (organophosphorous nerve agents hydrolysis) and electrochemical detection of non-hazardous by-product (p-nitrophenol) using printable sensor strip.

Throughout this investigation the effects of three commonly used agricultural pesticides, endosulfan (an organochlorine), malathion (an organophosphorous) and carbaryl (a carbamate) were studied on circulating levels of T4, T3, and the T3/T4 ratio of the fresh water catfish Clarias batrachus during the vitellogenic ( formation of the yolk of an egg) and post-vitellogenic phases of their annual ...