Synthesis and study on activity in vitro of the high purity human butyrylcholinesterase conjugated with gold nanoparticles.

The aim of this research was to design a method of immobilization of high-purity human butyrylcholinesterase on the surface of gold nanoparticles preserving the activity of the enzyme. In order to achieve this aim, the method of fractionation and purification of human butyrylcholinesterase from plasma was modified. The synthesis of 15-nm gold nanoparticles was carried out by citrated method.

[Regulations for decontamination of surfaces polluted as a result of chemical accidents (concept approaches)].

The threat of industrial chemical accidents and terrorist attacks requires the development of safety regulations for the cleanup of contaminated surfaces. This paper presents principles and a methodology for the development of a new toxicological parameter, "relative value unit" (RVU) as the primary decontamination standard.

[Hygienic evaluation of pollution in the area of a chemically-dangerous enterprise].

Pollution was hygienically evaluated in the area of the former chemically dangerous OAO "Kaprolaktam-Dzerzhinsk" enterprise. The soils around its production buildings were the test subject. Sampling, chemical analysis, and hygienic evaluation of the results of the analysis were made.