Evaluation of influence of nb-containing nanocomposites on microorganisms
Journal Title: Біоресурси і природокористування [Biological Resources and Nature Management] - Year 2017, Vol 9, Issue 1
Abstract
The first decade of the XXI century began with the rapid development of nanotechnology. Due to their properties, nanoparticles have been used in all branches of the economy. At the same time, the question of the relatively high level of toxicity of nanoparticles is touched upon, thus an obligatory task is to assess the toxicity of nanosynthesized nanomaterials prior to subsequent application. The influence of Nb-containing nanocomposites based on saponites and their component - nanosized SiO2 is studied in this work. It was noted that nanocomposites did not exhibit a toxic effect in the concentration range of 150-600 mg / l in relation to bioluminescent, aerobic bacteria and S. cerevisiae. For the action of nanosized SiO2, an inhibitory effect was observed to the listed microorganisms. Such results can be justified by the fact that the nanosize SiO2 material caused inhibition of the parameters, since it is about 20 nm in size so the nanomaterial can penetrate the cell wall of microorganisms and cause a negative effect. In composite materials, SiO2 during synthesis was agglomerated into large structures, ranging in size from 40-100 nm, thus losing its toxic properties.
Authors and Affiliations
M. V. Savchuk, A. M. Kacev, N. F. Starodub
Keywords
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