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Biosynthesis of silver nanoparticles using Acinetobacter calcoaceticus ІМV V-7241 cell-free supernatant
(2020) Laziuka, Yuliya; Kharchenko, Yevgen; Skrotska, Oksana
Currently, the biological synthesis of nanoparticles and their properties and application in the fields of medicine and the environment is an important area of nanotechnology. Synthesis of nanoparticles using chemical and physical methods has several disadvantages. These drawbacks include the use of toxic solvents, the formation of dangerous by-products and high energy consumption. Therefore, it is important to obtain nanoparticles in a biogenic way, in particular by microorganisms. The mechanisms of biogenic synthesis of nanoparticles have not been fully studied. There are reports on the role of surface active agents (surfactants) in this process. Therefore, the producer of surfactants Acinetobacter calcoaceticus ІМВ В-7241 (which was isolated from the oil contaminated environment) was selected for the study.
Ecological producing silver nanoparticles
(2022) Marchenko (Potapenko), Valeria; Skrotska, Oksana
In recent times there are several ways to obtain silver nanoparticles. Among which there is a biological method using microorganisms or plants which is more environmentally friendly compared to other methods. When using a cell-free aqueous yeast extract with parameters of 24 hours of cultivation of Saccharomyces cerevisiae M437 and 24 hours biosynthesis silver nanoparticles were obtained.