SYNTHESIS OF CU NANOPARTICLES AND ANTIBACTERIAL PROPERTIES

Abstract

Annotation.Interest in copper nanoparticles is due to its bactericidal and antimicrobial properties, which allows the use of materials based on it in biology and medicine. Analysis of the studies shows the promise of using the bactericidal activity of copper nanoparticles due to their low cost and relatively low environmental hazard. The aim of this work was to obtain copper nanoparticles by various methods, as well as determining the size of nanoparticles and their bactericidal activity. To obtain copper nanoparticles, three main approaches were used: polyol synthesis, solvothermal synthesis, and reduction in aqueous solutions. The phase composition of the samples was determined using x-ray phase analysis. The particle sizes of copper were determined by two methods: turbidimetric and SEM micrographs. The highest antibacterial activity on strains of Esherichia coli was shown by copper nanoparticles obtained using the polyol method and the solvothermal method. During the studies, it was revealed that when nanoparticles are exposed to the bacterial test cultures of Esherichia coli, their antibacterial properties depend on the size of the nanoparticles.

Keywords: nanoparticles, synthesis of nanoparticles, copper, antibacterial properties.