Aqueous phase synthesis of copper nanoparticles: a link between heavy metal resistance and nanoparticle synthesis ability in bacterial systems

Ramanathan, R, Field, M, O'Mullane, A, Smooker, P, Bhargava, S and Bansal, V 2013, 'Aqueous phase synthesis of copper nanoparticles: a link between heavy metal resistance and nanoparticle synthesis ability in bacterial systems', Nanoscale, vol. 5, no. 6, pp. 2300-2306.


Document type: Journal Article
Collection: Journal Articles

Title Aqueous phase synthesis of copper nanoparticles: a link between heavy metal resistance and nanoparticle synthesis ability in bacterial systems
Author(s) Ramanathan, R
Field, M
O'Mullane, A
Smooker, P
Bhargava, S
Bansal, V
Year 2013
Journal name Nanoscale
Volume number 5
Issue number 6
Start page 2300
End page 2306
Total pages 6
Publisher RSC Publications
Abstract We demonstrate aqueous phase biosynthesis of phase-pure metallic copper nanoparticles (CuNPs) using a silver resistant bacterium Morganella morganii. This is particularly important considering that there has been no report that demonstrates biosynthesis and stabilization of pure copper nanoparticles in the aqueous phase. Electrochemical analysis of bacterial cells exposed to Cu2+ ions provides new insights into the mechanistic aspect of Cu2+ ion reduction within the bacterial cell and indicates a strong link between the silver and copper resistance machinery of bacteria in the context of metal ion reduction. The outcomes of this study take us a step closer towards designing rational strategies for biosynthesis of different metal nanoparticles using microorganisms.
Subject Environmental Nanotechnology
Nanofabrication, Growth and Self Assembly
Keyword(s) Aqueous phase synthesis
copper nanoparticles
heavy metal resistance
nanoparticle synthesis
bacterial systems
DOI - identifier 10.1039/C2NR32887A
Copyright notice © The Royal Society of Chemistry 2012
ISSN 2040-3364
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