Ultrasmall Iron Oxide Nanoparticles for Biomedical Applications

Nov 21, 2011 - Ultrasmall Iron Oxide Nanoparticles for Biomedical Applications: Improving the Colloidal and Magnetic Properties. Rocio Costo† ..... ...
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ARTICLE pubs.acs.org/Langmuir

Ultrasmall Iron Oxide Nanoparticles for Biomedical Applications: Improving the Colloidal and Magnetic Properties Rocio Costo,† Valentina Bello,‡ Caroline Robic,§ Marc Port,§ Jose F. Marco,|| M. Puerto Morales,† and Sabino Veintemillas-Verdaguer*,† †

Instituto de Ciencia de Materiales de Madrid (CSIC), Sor Juana Ines de la Cruz 3, 28049 Madrid, Spain Dipartimento di Fisica, Universita di Padova, Via Marzolo 8, 35131 Padova, Italy § Guerbet Research, BP 57400, 95943 Roissy CDG, France Instituto de Química-Física Rocasolano (CSIC), Serrano 119, 28006 Madrid, Spain

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bS Supporting Information ABSTRACT: A considerable increase in the saturation magnetization, Ms (40%), and initial susceptibility of ultrasmall (