Biomimetic synthesis of superparamagnetic iron oxide particles in proteins

Sinha, Arvind and Nayar, S and Murthy, G V S and Joy, P A and Rao, Venkatesh and Ramachandrarao, P (2003) Biomimetic synthesis of superparamagnetic iron oxide particles in proteins. Journal of Materials Research, 18 (6). pp. 1309-1313.

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Matrix-mediated in situ synthesis of monodispersed magnetite and maghemite nanoparticles (2-16 nm) was carried out using the cavities present in gels of globular proteins such as egg white and bovine serum albumin. Under stringent conditions, spatial-charge-distribution-assisted molecular recognition of proteins for inorganic ions led to the site- and polymorph-specific synthesis of superparamagnetic iron oxide particles. A transformation from magnetite to maghemite as a nucleating phase could be observed by partially denaturing the egg white protein, signifying the delicate role of quaternary structure of proteins under different reaction conditions, in determining the size and shape of the polymorph.

Item Type:Article
Official URL/DOI:DOI: 10.1557/JMR.2003.0180
Uncontrolled Keywords:Mineralization; Microspheres; Albumin
Divisions:Material Science and Technology
ID Code:3476
Deposited By:Sahu A K
Deposited On:19 Jul 2011 09:59
Last Modified:09 Feb 2012 13:13
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