High Value of Proton Relaxivity Achieved by Graphene Oxide-Cobalt Ferrite Nanoparticle Composite: A Potential Contrast Agent in Magnetic Resonance Imaging

Venkatesha, N and Ashwini, R and Poojar, Pavan and Geethanath, Sairam and Srivastava, Chandan (2014) High Value of Proton Relaxivity Achieved by Graphene Oxide-Cobalt Ferrite Nanoparticle Composite: A Potential Contrast Agent in Magnetic Resonance Imaging. In: JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE, 94 (4). pp. 415-421.

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Abstract

This work investigates the potential of graphene oxide-cobalt ferrite nanoparticle (GO-CoFe2O4) composite as image contrast enhancing material in Magnetic Resonance Imaging (MRI). In the preset work, GO-CoFe2O4 composites were produced by a two-step synthesis process. In the first step, graphene oxide (GO) was synthesized, and in the second step CoFe2O4 nanoparticles were synthesized in a reaction mixture containing GO to yield graphene GO-CoFe2O4 composite. Proton relaxivity value obtained from the composite was 361 mM(-1)s(-1). This value of proton relaxivity is higher than a majority of reported relaxivity values obtained using several ferrite based contrast agents.

Item Type:	Journal Article
Publication:	JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE
Additional Information:	Copy right for this article belongs to the INDIAN INST SCIENCE, INDIAN INST SCIENCE, BANGALORE 560012, INDIA
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	13 Jan 2015 05:00
Last Modified:	13 Jan 2015 05:00
URI:	http://eprints.iisc.ac.in/id/eprint/50650

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