Nano Archive

Direct coprecipitation route to monodisperse dual-functionalized magnetic iron oxide nanocrystals without size selection

Li, Zhen and Tan, Bien and Allix, Mathieu and Cooper, Andrew I. and Rosseinsky, Matthew J. (2008) Direct coprecipitation route to monodisperse dual-functionalized magnetic iron oxide nanocrystals without size selection. SMALL, 4 (2). pp. 231-239.

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Official URL: http://www3.interscience.wiley.com/journal/1178924...

Abstract

Water-soluble monodisperse superparamagnetic Fe3O4 nanocrystals decorated with two distinct functional groups are prepared in a single-step procedure by injecting iron precursors into a refluxing aqueous solution of a polymer ligand, trithiol-terminated poly (methacrylic acid) (PMAA-PTTM), bearing both carboxylate and thiol functionalities. The ratio of carboxylic acid groups in the polymer-protecting ligand to the iron precursors plays a key role in determining the particle size and particle size distribution. The surface functionalities of the ligands allow post-synthesis modification of the materials to produce water-soluble fluorescent magnetic nanocrystals.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nano objects
Physical Science > Nanomagnetics
Material Science > Nanochemistry
ID Code:1274
Deposited By:Anuj Seth
Deposited On:15 Dec 2008 13:58
Last Modified:20 Jan 2009 09:53

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