The adsorption and photocatalytic degradation of trimethyl phosphate (TMP) triethyl (TEP), two environmentally relevant model pollutants, have been studied on commercial anatase TiO2 sulfate-terminated nanoparticles by means operando diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy 2D correlation (2D COS). It is concluded that both TMP TEP adsorb dissociatively TiO2, while th...

The albumin molecule, in contrast to many other plasma proteins, is not covered with a carbohydrate moiety and can bind and transport various molecules of endogenous and exogenous origin. The enzymatic activity of albumin, the existence of which many scientists perceive skeptically, is much less studied. In toxicology, understanding the mechanistic interactions of organophosphates with albumin ...

Acute poisoning with organophosphate based pesticides is a notable cause of morbidity and mortality in the developing world, but much less common in the United Kingdom. However, the potential for frequent low level exposures to organophosphates exists for many occupational groups including agricultural workers, sheep dippers, and pesticide sprayers. Over the past decade an increasing number of ...

We have performed a quartz crystal microbalance (QCM) study of the uptake and nanotribology of organophosphate (tricresylphosphate (TCP) and t-butyl phenyl phosphate (TBPP)) layers adsorbed from the vapor phase onto amorphous and polycrystalline silicon and octadecyltrichlorosilane (OTS) treated silicon substrates. The materials were selected for their relevance to MEMS applications. About 3–5 ...

Phosphotriesterase (PTE) from Pseudomonas diminuta is a zinc metalloenzyme that hydrolyzes a variety of organophosphorus compounds. The kinetic parameters of Zn/Zn PTE, Cd/Cd PTE, and a mixed-metal Zn/Cd hybrid PTE were obtained with a variety of substrates to determine the role of each metal ion in binding and catalysis. pH-rate profiles for the hydrolysis of diethyl p-nitrophenyl phosphate (I...

Toxic neuropathies generally result in length dependent axonal neuropathy with the exception of diphtheria and a few toxic neuropathies. In spite of occurrence of diphtheria in India there is paucity of published reports on diphtheritic neuropathy. Arsenic neuropathy commonly occurs in Bengal and Bangladesh because of ground water contamination whereas in Punjab it is due to contamination of op...