Fe3O4@organic@Au: core–shell nanocomposites with high saturation magnetisation as magnetoplasmonic MRI contrast agents

Eric D. Smolensky; Michelle C. Neary; Yue Zhou; Thelma S. Berquo; Valérie C. Pierre

doi:10.1039/C0CC03746J

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Fe₃O₄@organic@Au: core–shell nanocomposites with high saturation magnetisation as magnetoplasmonic MRI contrast agents†

Eric D. Smolensky,^a Michelle C. Neary,^a Yue Zhou,^a Thelma S. Berquo^a and Valérie C. Pierre*^a

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^a Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, USA
E-mail: pierre@umn.edu
Fax: +1 612 626 7541
Tel: +1 612 625 0921

Abstract

The synthesis and characterization of core–shell Fe₃O₄@organic@Au nanoparticles displaying plasmonic behavior, high magnetism, and high relaxivity is presented. The incorporation of a thin organic layer between the two metals is crucial in maintaining the saturation magnetisation of the superparamagnetic core.

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Article information

DOI: https://doi.org/10.1039/C0CC03746J
Article type: Communication
Submitted: 09 Sep 2010
Accepted: 17 Nov 2010
First published: 17 Dec 2010

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Chem. Commun., 2011,47, 2149-2151

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Fe₃O₄@organic@Au: core–shell nanocomposites with high saturation magnetisation as magnetoplasmonic MRI contrast agents

E. D. Smolensky, M. C. Neary, Y. Zhou, T. S. Berquo and V. C. Pierre, Chem. Commun., 2011, 47, 2149 DOI: 10.1039/C0CC03746J

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