[Drinking water regulations in Ukraine and infectious morbidity rate with water pathway of transmission of causative agents].

These are presented drinking water regulations in Ukraine on microbiological indices in the new state document "Hygienic Drinking water regulations intended for human consumption" (State sanitary regulations and standards (GsanPiN) 2.2.4-171-10).

[The European approaches to the microbiological food safety assessment].

The purpose of the study was the analysis of the results of the study of the quality of food products and environment of food industries on microbiological indicators according to domestic and European regulations (EU). The analysis of the quality of food, studied during 2008-2012, showed an increase in the number of samples that do not meet the requirements of regulations at the same time on several factors: mesophilic aerobes and facultatively anaerobic microorganisms, bacteria of the family Enterobacteriaceae and fungi (molds and yeasts). The results of research in dining facilities, food industries and distribution network for 2008-2011.

[Antimicrobial activity of stable silver nanoparticles of a certain size].

Conditions for obtaining stable silver nanoparticles smaller than 10 nm were developed using a binary stabilizer polyvinylpyrrolidone/sodium dodecylsulphate in optimal ratio. Optical spectra, morphology and dependence of size of the nanoparticles on the amount of reducing agent were studied. Colloidal solutions of nanosilver showed a high bactericidal activity against strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, and fungicidal activity against Candida albicans.

[The study of antimicrobial properties of silver nanoparticles in the form of a colloidal solution in the matrix of finely dispersed silica].

In the experimental study obtained with chemical method colloid solution of nanoparticles (NPs) of silver (Ag) and a composite on his base in the matrix of finely dispersed silica with particle size of 8-12 nm and NPs concentration in basic solution of 0,0016% (0,016 mg/cm3) were established to exhibit high antimicrobial activity against the test organisms: E. coli, P. aeruginosa, S.

[Study of the mechanisms of interaction between intestinal bacteriophages and polyaluminum coagulants].

The authors have investigated the adsorption-elution of intestinal bacteriophages T2 and MS2 as a model of enteric viruses, by using the coagulants aluminum oxychloride (AOX78) and aluminum sulfate (AS). The investigation has ascertained the effective removal of the phages from water with AOX78 (98.7-100%) and the low efficiency of elution of coliphages from the particles of AOX hydrolysis products (0.