Cobalt ferrite nanoparticles: The control of the particle size and surface state and their effects on magnetic properties
Journal of Magnetism and Magnetic Materials 311 (2007) 10–16
Giovanni Baldi a, Daniele Bonacchi a, Claudia Innocenti b,
Giada Lorenzi a, Claudio Sangregoriob,
a Centro Ricerche Colorobbia, via Pietramarina 53, Sovigliana, Vinci 50053, (FI), Italy
b INSTM—Department of Chemistry, University of Florence, Via della Lastruccia, 3, Sesto Fiorentino 50019 (FI), Italy
In order to improve the efficacy of magnetic fluid hyperthermia (MFH) mediators, we synthesised cobalt ferrite nanoparticles with different sizes (between 5 and 7 nm) via successive polyol synthesis.
The static and dynamic magnetic properties of the prepared particles, dispersed in a solid matrix, were investigated in order to evaluate the possibility of applying cobalt ferrite as magnetic susceptors in MFH. The effect on magnetic properties coming from the surface anchoring of the model molecule cetyl phosphate, was also investigated.
© 2006 Elsevier B.V. All rights reserved.
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