@article { ISI:000252511300020,
	title = {Bacterial enzyme mediated biosynthesis of gold nanoparticles},
	journal = {Journal of Nanoscience and Nanotechnology},
	volume = {7},
	number = {12},
	year = {2007},
	month = {DEC},
	pages = {4369-4377},
	publisher = {AMER SCIENTIFIC PUBLISHERS},
	type = {Article},
	address = {25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USA},
	abstract = {<p>Development of synthesis methods for anisotropic metal nanoparticles is of considerable interest due to their remarkable optoelectronic properties. Various shapes ranging from rods to cubes to tetrapods and prisms may be obtained by chemical methods. Here we show that anisotropic gold nanoparticles can be synthesized biologically by the bacterium Actinobacter spp. when challenged with gold chloride in the presence of Bovine serum albumin (BSA). We also observed that synthesis of gold nanoparticles occur with simultaneous induction of the protease enzyme secreted by the bacterium in the presence of BSA. The presence of BSA helps to enhance the rate of gold nanoparticles biosynthesis and may also impart some shape control. Controlling simple experimental conditions like incubation temperature and presence or absence of oxygen have drastic effect on the reaction rate and the morphology of the particles. Various assay experiments show that the presence of enzyme protease can act as a reducing as well as shape directing agent.</p>},
	keywords = {Biosynthesis, bovine serum, gold nanoparticles},
	issn = {1533-4880},
	doi = {10.1166/jnn.2007.891},
	author = {Bharde, Atul A. and Kulkarni, Aarohi and Rao, Mala and Prabhune, Asmita and Sastry, Murali}
}
@article {42680,
	title = {Bacterial synthesis of phtocatalytically active and biocompatible TiO2 and ZnO nanoparticles},
	journal = {International Journal of Green Nanotechnology: Physics and Chemistry},
	volume = {2},
	year = {2010},
	month = {DEC},
	pages = {80-99},
	abstract = {<p>TiO2 and ZnO nanoparticles are well known for their photocatalytic and ultraviolet (UV)-absorbent properties and have successfully entered into the market as consumer products. Large volume production of these nanoparticles by industries require environmentally friendly processes of synthesis. In this article, we show that when challenged with an appropriate precursor, the bacterium Actinobacter spp. can lead to the extracellular synthesis of ZnO and TiO2 nanoparticles. The biological way of synthesizing these materials probably leads to the in situ doping of elements like C, F, and N into their crystal lattices, which is evidenced by a red shift in the absorption edge. Because the doping is expected to affect the photocatalytic activity of these materials under different light conditions, such investigations have also been undertaken here. Further, the biocompatibility of these nanomaterials (cytotoxicity and genotoxicity) has also been investigated in detail.</p>},
	keywords = {Biosynthesis, genotoxicity, Nanoparticles, Nanotoxicity, Photocatalysis},
	doi = {10.1080/19430876.2010.532459},
	author = {Singh, Sanjay and Britto, Virginia D. and Bharde, Atul A. and Sastry, Murali and Dhawan, Alok and Bhagavatula L. V. Prasad}
}
