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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. |
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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