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Proceedings Paper

Preparation of functionalized Fe1-xPdx based nanoparticles: magnetic characterization
Author(s): I. Gil de Muro; I. Castellanos; L. Lezama; M. Insausti; E. Garayo; F. Plazaola; T. Rojo
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Paper Abstract

Oleic acid/oleylamine capped Fe1-xPdx (x=0.16, 0.20, 0.25) nanoparticles have been synthesized using a diol as reducing agent in order to get nanoparticles of different average sizes and coatings. Composition and morphology were analyzed by infrared spectroscopy (IR), X-Ray Diffraction (RXD), thermogravimetry (TG) and Transmission Electron Microscopy (TEM). Well dispersed nanoparticles with uniform sizes between 3 and 8 nm and average diameters less than 6 nm were obtained. Magnetic properties were investigated by Electron Magnetic Resonance (EMR) and magnetization measurements. Most of the nanoparticles were superparamagnetic at physiological temperature with low magnetic saturation values (near 5 emu.g-1 alloy/0.4 Nβ per Fe atom). SAR measurements were also performed with the aim of carrying out hyperthermia measurements but the nanoparticles did not work as magnetic heaters.

Paper Details

Date Published: 2 February 2012
PDF: 9 pages
Proc. SPIE 8232, Colloidal Nanocrystals for Biomedical Applications VII, 82321L (2 February 2012); doi: 10.1117/12.906655
Show Author Affiliations
I. Gil de Muro, Univ. del País Vasco (Spain)
I. Castellanos, Univ. del País Vasco (Spain)
L. Lezama, Univ. del País Vasco (Spain)
M. Insausti, Univ. del País Vasco (Spain)
E. Garayo, Univ. del País Vasco (Spain)
F. Plazaola, Univ. del País Vasco (Spain)
T. Rojo, Univ. del País Vasco (Spain)
Parque Tecnológico de Álava (Spain)

Published in SPIE Proceedings Vol. 8232:
Colloidal Nanocrystals for Biomedical Applications VII
Wolfgang J. Parak; Kenji Yamamoto; Marek Osinski, Editor(s)

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