Study of the properties of nanoparticles of Ag and Zn citrates


Keywords: nanoparticles, dispersed solutions, Ag and Zn citrates, size, bactericidal properties, efficiency.

Abstract

The use of nanomaterials has become especially relevant as components of new drugs, adjuvants and new ingredients in feed additives. The very combination of inorganic components (metals) with natural minerals (сeolites, clenoptolites) made it possible to create fundamentally new chemical compounds that differ significantly in the mechanism of action and their physicochemical characteristics from traditionally used drugs for the treatment of bacterial diseases of poultry. The practical application of the composition involves the use of small sizes of nanoparticles that are in the “nanoscale” from 1 to 100 nm. Our article contains the results of studies of Ag and Zn nanomaterials in combination with citrate in the form of powder and dispersed solutions. As a result of scanning electron microscopy, it was found that the studied sample of Ag and Zn nanoparticles is a gray powder of monocrystalline particles of irregular shape, the size of which varies from 160 to 350 nm. Particles of three sizes were most often found among Ag and Zn citrates, namely: 160 nm 45 %, 210 nm 35 %, 350 nm 20 %. Studying the bactericidal properties of dispersed solutions of Ag and Zn citrates on microbial suspensions of test cultures of Escherichia coli (ser.O2), Salmonella typhimurium, Pseudomonas aeruginosa, Staphylococcus epidermidis, we found that Ag citrate showed better bactericidal properties in relation to all experimental test cultures of Escherichia coli (ser.O2), Salmonella typhimurium, Pseudomonas aeruginosa, Staphylococcus epidermidis, in contrast to the citrate solution Zn, which was only effective against Escherichia coli (ser.O2), and Staphylococcus epidermidis.

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Abstract views: 32
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Published
2020-12-23
How to Cite
Klishchova, Z. (2020). Study of the properties of nanoparticles of Ag and Zn citrates. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Veterinary Sciences, 22(100), 50-53. https://doi.org/10.32718/nvlvet10009