Extracellular Deposition of Silver Nanoparticles by Bacillus Megaterium
Autor: | Omolbanin Shivai Karkaj, Fatemeh Khadivi Derakhshan, Mojtaba Salouti, Rahim Sorouri Zanjani |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry. 43:903-906 |
ISSN: | 1553-3182 1553-3174 |
DOI: | 10.1080/15533174.2012.750673 |
Popis: | Bacteria have the most attendance in biosynthesis of silver nanoparticles either intra- or extracellular. In this study, we investigated biologic production of silver nanoparticles by a silver resistant Bacillus sp. isolated from a copper mine. The UV–vis and XRD spectra of the aqueous medium containing the Bacillus sp. and 3.5 mM AgNo3, showed the formation of silver nanoparticles. TEM and SEM micrographs showed extracellular synthesis of silver nanoparticles with spherical shape in the size range of 10–60 nm. Molecular study, performed based on the sequencing of 16S rRNA gene, demonstrated the strain of isolated Bacillus as megaterium. |
Databáze: | OpenAIRE |
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