화학공학소재연구정보센터
Korean Journal of Materials Research, Vol.13, No.9, 613-618, September, 2003
온열치료용 SiO2/Fe2O3 나노복합입자의 제조와 특성
Synthesis and Characterization of SiO2/Fe2O3 Nanocomposite Particles for Hyperthermia
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The magnetic heating effect of coated nanocomposite particle due to magnetic relaxational loss of superparamagnetic regime was investigated by measuring the generated heat from nanocomposite particles in alternative applied magnetic fields. The commercial nanoparticles were coated by SiOin water solution with TEOS and the synthesized nanocomposite powders and its magnetic properties were characterized and compared with the rawnanoparticles. The 10∼30 nm sized . nanoparticles were coated by 5 nm thickness of amorphous film. The nanocomposite particle has very low Mr and Hc value showing superparamagnetic behavior The magnetic heating effect of nanocomposite particle on surface coating phase of was discussed in terms of superparamagnetic behaviors of each particles, and their potential for hyperthermia application was evaluated.
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