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Biological synthesis of cobalt ferrite nanoparticles

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Author(s): Anal K. Jha | Kamal Prasad

Journal: Nanotechnology Development
ISSN 2038-9671

Volume: 2;
Issue: 1;
Start page: e9;
Date: 2012;
Original page

Keywords: nanoparticles | nanomaterials | cobalt ferrite | green synthesis | biosynthesis.

ABSTRACT
A low-cost green and reproducible yeast (Saccharomyces cerevisiae) mediated biosynthesis of cobalt ferrite nanoparticles is reported. The synthesis is performed at close to room temperature in the laboratory. X-ray, Fourier transform infrared spectroscopy and high resolution transmission electron microscopy analyses are performed to ascertain the formation of cobalt ferrite nanoparticles. Individual nanoparticles, as well as a very few aggregate having the size of 3-15 nm, were found. The vibrating sample magnetometer measurement showed superparamagnetic behavior in cobalt ferrite nanoparticles. The mechanism involved in the biosynthesis of cobalt ferrite nanoparticles has also been discussed.
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