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Magnetic nanoparticles for biomedical applications

M. FARDIS1,* , I. RABIAS1, G. DIAMANTOPOULOS1, N. BOUKOS1, D. TSITOURLI1, G. PAPAVASSILIOU1, D. NIARCHOS1

Affiliation

  1. Institute of Materials Science, National Centre for Scientific Research ‘Demokritos’, 153 10 Aghia Paraskevi, Athens, Greece

Abstract

Magnetite nanoparticles covalently coated with polysaccharide arabic acid are investigated as possible constituents of aqueous ferrofluids for biomedical applications. The nanoparticles have been characterized by transmission electron microscopy and with magnetic measurements. 1H nuclear magnetic resonance T1 relaxation experiments of the coating which cover the nanoparticles have been also carried out in an attempt to probe the dynamic (superparamagnetic) behaviour of the magnetic nanoparticles. Finally, magnetic hyperthermia experiments of the synthesized ferrofluid have been performed and the dependence of the measured Specific Absorption Rate coefficient (SAR) as a function of the amplitude of the irradiation field is discussed..

Keywords

Ferrofluids, Magnetic nanoparticles, NMR, Magnetic hyperthermia.

Submitted at: Nov. 15, 2006
Accepted at: March 15, 2007

Citation

M. FARDIS, I. RABIAS, G. DIAMANTOPOULOS, N. BOUKOS, D. TSITOURLI, G. PAPAVASSILIOU, D. NIARCHOS, Magnetic nanoparticles for biomedical applications, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 3, pp. 527-531 (2007)