Eur. Phys. J. Appl. Phys.
Volume 56, Number 3, December 2011
|Number of page(s)||4|
|Section||Nanomaterials and Nanotechnologies|
|Published online||14 November 2011|
Biosynthesis of quasi-spherical Ag nanoparticle by Pseudomonas aeruginosa as a bioreducing agent
Faculty of Science, Majlesi Branch, Islamic Azad University, Isfahan, Islamic Republic of Iran
a e-mail: firstname.lastname@example.org
Revised: 17 July 2011
Accepted: 5 September 2011
Published online: 14 November 2011
Use of microorganism as a novel and eco-friendly strategy to production of nanomaterials is an important aspect of modern nanotechnology. Biosynthesis of quasi-spherical silver nanoparticles (Ag-NPs) has been investigated using Pseudomonas aeruginosa. We observe that silver (Ag+) ions when exposed to P. aeruginosa biomass are reduced in solution, thereby leading to the formation of Ag-NPs. Quasi-spherical shape and nearly well distribution and FCC crystal structure of Ag-NPs were confirmed by XRD pattern, STM and TEM micrographs. UV-Vis spectra show a surface plasmon resonance (SPR) band at ~ 435 nm.
© EDP Sciences, 2011
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