Extracellular Deposition of Silver Nanoparticles by Bacillus Megaterium

Autor: Omolbanin Shivai Karkaj, Fatemeh Khadivi Derakhshan, Mojtaba Salouti, Rahim Sorouri Zanjani
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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