Journal
ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY
Volume 44, Issue 1, Pages 263-269Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/21691401.2014.942457
Keywords
biological synthesis; genetically engineered bacteria; gold ions; nano gold particles; plant pathogens; reduction reaction; surface plasmon absorption band; transmission electron microscopy
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Funding
- Ferdowsi University Research Council [P 53:24-01-89]
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The effect of different genetically engineered bacteria, Pseudomonas syringae, Pseudomonas savastanoi, and Ralostonia solanacerum and also a natural marine bacterial species, Vibrio fischeri NRRL B-11177, is studied in producing gold nanoparticles. This is the first report about the biosynthesis of gold nanoparticles by natural and genetically engineered luminescent bacteria. These microorganisms reduced gold ions and produced fairly monodisperse nanoparticles. TEM analysis indicated that spherical nano gold particles in the different diameters and shapes were obtained at pH values of 6.64. In this biosynthesis protocol, the gold nanoparticles with desired shape and size can be prepared.
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