One-step ligand exchange and switching from hydrophobic to water-stable hydrophilic superparamagnetic iron oxide nanoparticles by mechanochemical milling

Katalin V. Korpany; Cristina Mottillo; Jill Bachelder; Shoronia N. Cross; Pengcheng Dong; Simon Trudel; Tomislav Friščić; Amy Szuchmacher Blum

doi:10.1039/C5CC07107K

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One-step ligand exchange and switching from hydrophobic to water-stable hydrophilic superparamagnetic iron oxide nanoparticles by mechanochemical milling†

Katalin V. Korpany,^a Cristina Mottillo,^a Jill Bachelder,^a Shoronia N. Cross,^a Pengcheng Dong,^b Simon Trudel,^b Tomislav Friščić*^a and Amy Szuchmacher Blum*^a

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* Corresponding authors

^a Department of Chemistry, McGill University, 801 Sherbrooke St. W., H3A 0B8 Montreal, Canada
E-mail: amy.blum@mcgill.ca, tomislav.friscic@mcgill.ca
Tel: +1-514-398-3959

^b Department of Chemistry, Centre for Advanced Solar Materials, and Institute for Quantum Science and Technology, University of Calgary, 2500 University Drive N.W., Calgary, AB, Canada

Abstract

We describe a simple, rapid methodology for the synthesis of water-stable iron oxide nanoparticles (IONPs) compatible with a variety of aqueous buffers, based on mechanochemical milling exchange of covalently bound surface ligands on pre-fabricated oleic acid-protected IONPs. Application of milling for IONP ligand exchange eliminates steps required for transforming hydrophobic into negatively charged, water-soluble superparamagnetic IONPs.

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DOI: https://doi.org/10.1039/C5CC07107K
Article type: Communication
Submitted: 24 Aug 2015
Accepted: 11 Jan 2016
First published: 11 Jan 2016
This article is Open Access

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Chem. Commun., 2016,52, 3054-3057

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One-step ligand exchange and switching from hydrophobic to water-stable hydrophilic superparamagnetic iron oxide nanoparticles by mechanochemical milling

K. V. Korpany, C. Mottillo, J. Bachelder, S. N. Cross, P. Dong, S. Trudel, T. Friščić and A. S. Blum, Chem. Commun., 2016, 52, 3054 DOI: 10.1039/C5CC07107K

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Chemical Communications

One-step ligand exchange and switching from hydrophobic to water-stable hydrophilic superparamagnetic iron oxide nanoparticles by mechanochemical milling†

Abstract

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One-step ligand exchange and switching from hydrophobic to water-stable hydrophilic superparamagnetic iron oxide nanoparticles by mechanochemical milling

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