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Materials 2016, 9(7), 554; doi:10.3390/ma9070554

Tunability of Size and Magnetic Moment of Iron Oxide Nanoparticles Synthesized by Forced Hydrolysis

1
Department of Chemistry, Laboratory for Molecular Electronics and Photonics, KU Leuven, Celestijnenlaan 200D, Box 2425, 3001 Leuven, Belgium
2
Department of Physics and Astronomy, Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
3
Department of Chemistry, Laboratory for Organic & Microwave-Assisted Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Maryam Tabrizian and Carlos Lodeiro
Received: 15 March 2016 / Revised: 28 June 2016 / Accepted: 30 June 2016 / Published: 8 July 2016
(This article belongs to the Special Issue Selected papers from ISN2A2016)
View Full-Text   |   Download PDF [14071 KB, uploaded 8 July 2016]   |  

Abstract

To utilize iron oxide nanoparticles in biomedical applications, a sufficient magnetic moment is crucial. Since this magnetic moment is directly proportional to the size of the superparamagnetic nanoparticles, synthesis methods of superparamagnetic iron oxide nanoparticles with tunable size are desirable. However, most existing protocols are plagued by several drawbacks. Presented here is a one-pot synthesis method resulting in monodisperse superparamagnetic iron oxide nanoparticles with a controllable size and magnetic moment using cost-effective reagents. The obtained nanoparticles were thoroughly characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) measurements. Furthermore, the influence of the size on the magnetic moment of the nanoparticles is analyzed by superconducting quantum interference device (SQUID) magnetometry. To emphasize the potential use in biomedical applications, magnetic heating experiments were performed. View Full-Text
Keywords: iron oxide; nanoparticle; biocompatible; forced hydrolysis iron oxide; nanoparticle; biocompatible; forced hydrolysis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sutens, B.; Swusten, T.; Zhong, K.; Jochum, J.K.; Van Bael, M.J.; Van der Eycken, E.V.; Brullot, W.; Bloemen, M.; Verbiest, T. Tunability of Size and Magnetic Moment of Iron Oxide Nanoparticles Synthesized by Forced Hydrolysis. Materials 2016, 9, 554.

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