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Title Microbial synthesis of silver nanoparticles by streptomyces glaucus and spirulina platensis
Authors Tsibakhashvili, N.Ya
Kirkesali, E.J.
Pataraya, D.T.
Gurielidze, M.A.
Kalabegishvili, T.L.
Gvarjaladze, D.N.
Tsertvadze, G.I.
Frontasyeva, M.V.
Zinicovscaia, I.I.
Wakstein, M.S.
Khakhanow, S.N.
Shvindina, N.V.
Shklover, V.Ya.
ORCID
Keywords срібло
серебро
silver
наночастини
наночастицы
nanoparticles
Type Conference Papers
Date of Issue 2011
URI http://essuir.sumdu.edu.ua/handle/123456789/20679
Publisher Sumy State University
License
Citation Microbial synthesis of silver nanoparticles by streptomyces glaucus and spirulina platensis [Текст] / N.Ya. Tsibakhashvili, E. J. Kirkesali, D.T. Pataraya et al. // Nanomaterials: applications & properties. Proceedings : 1-st International conference, Alushta, Crimea, 27-30 Semptember 2011 / Edited by: A. Pogrebnjak, T. Lyutyy, S. Protsenko. — Sumy : Sumy State University, 2011. — V.2, P.ІІ. — C. 306-310.
Abstract Microbial synthesis of nanoparticles has a potential to develop simple, costeffective and eco-friendly methods for production of technologically important materials. In this study, for the first time a novelactinomycete strain Streptomyces glaucus71 MD isolated from a soy rhizosphere in Georgiais for the first time extensively characterized and utilized for the synthesis of silver nanoparticles. Scanning Electron Microscope (SEM) allowed observing extracellular synthesis of nanoparticles, which has many advantages from the point of view of applications. Production of silver nanoparticles proceeded extracellularlywith the participation of another microorganism, bluegreen microalgae Spirulinaplatensis (S. platensis). In this study it is shown that the production rate of the nanoparticles depends not only on the initial concentration of AgNO3 but also varies with time in a nonmonotonic way. SEM study of silver nanoparticles remaining on the surface of microalgae revealed that after 1 day of exposure to 1 mM AgNO3 nanoparticles were arranged as long aggregates along S. platensiscells strongly damaged by silver ions. However, after 5 days of exposure to silver S. platensiscells looked completely recovered and the nanoparticles were distributed more uniformly on the surface of the cells. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/20679
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