@article { ISI:000260776800015,
	title = {Structure and microbial synthesis of sub-10 nm Bi2O3 nanocrystals},
	journal = {Journal of Nanoscience and Nanotechnology},
	volume = {8},
	number = {8},
	year = {2008},
	month = {AUG},
	pages = {3909-3913},
	publisher = {AMER SCIENTIFIC PUBLISHERS},
	address = {25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USA},
	abstract = {<p>After the advent of novel chemical and microbial techniques, providing control over grain size and shape of the nanomaterials, several binary-oxide materials have been explored in size less than 10 nm for their tunable physical properties. Bi2O3 nanoparticles have also redrawn attention due to their excellent properties, mostly as optoelectronic material. Here, we report the room-temperature biosynthesis of Bi2O3 nanoparticles in a size range of 5-8 nm by extra-cellularly challenging the plant pathogenic fungus-Fusarium oxysporum with the bismuth nitrate as precursor. The as-synthesized particle-surfaces are inherently functionalized by a robust layer of proteins which provides them very good stability in the aqueous medium. Structural investigation using selected area electron diffraction, high resolution transmission electron microscopy and powder XRD shows that particles are almost perfectly single crystalline and primarily crystallize in alpha-phase with monoclinic structure.</p>},
	keywords = {Biosynthesis, fungi, High Refractive Index, High Resolution TEM, Nanoparticles},
	issn = {1533-4880},
	doi = {10.1166/jnn.2008.179},
	author = {Uddin, Imran and Adyanthaya, Suguna D. and Syed, Asad and Selvaraj, K. and Ahmad, Absar and Poddar, Pankaj}
}
@article { ISI:000340292800014,
	title = {Extracellular biosynthesis of metal sulfide nanoparticles using the fungus fusarium oxysporum},
	journal = {Current Nanoscience},
	volume = {10},
	number = {4},
	year = {2014},
	month = {JUL},
	pages = {588-595},
	publisher = {BENTHAM SCIENCE PUBL LTD},
	address = {EXECUTIVE STE Y-2, PO BOX 7917, SAIF ZONE, 1200 BR SHARJAH, U ARAB EMIRATES},
	abstract = {<p>The development of reliable, eco-friendly processes for the synthesis of nanomaterials is an important aspect of nanotechnology. One approach that shows immense potential is based on the biosynthesis of nanoparticles using microorganisms such as bacteria. In this report, we demonstrate the extracellular biosynthesis and complete characterization of metal sulfide (PbS, ZnS, MnS and NiS) nanoparticles using fungus, Fusarium oxysporum. We observed that the exposure of aqueous solution of 1 mM metal sulfate to fungus Fusarium oxysporum resulted in the formation of highly stable technologically important metal sulfide semiconductor nanoparticles. Fusarium oxysporum synthesizes lead sulfide and zinc sulfide nanoparticles of fractal type structure whereas manganese sulfide and nickel sulfide nanoparticles are of variable polydispersed morphology. The variable morphology may be due to the dissimilar interaction of metal sulfide nanoparticles with capping proteins secreted by the fungus in solution. The nanoparticles solution is found to be extremely stable with little evidence of aggregation even after a month of storage. The long term stability of the nanoparticles is due to the proteins secreted by fungus in the nanoparticle solution which bind to the surface of the nanoparticles and thus prevent aggregation.</p>},
	keywords = {Biosynthesis, enzymes, fungi, metal sulfide, Nanoparticles},
	issn = {1573-4137},
	author = {Senapati, Satyajyoti and Syed, Asad and Khan, Shadab and Pasricha, Renu and Khan, Mohammad Islam and Kumar, Rajiv and Ahmad, Absar}
}
