Magnetic characterization and self-heating of various magnetic nanoparticles for medical applications

Author

Tomitaka, Asahi ; Kobayashi, Hiroki ; Yamada, Tsutomu ; Jeun, Minhong ; Bae, Seongtae ; Takemura, Yasushi

Author_Institution

Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2010

Firstpage

896

Lastpage

897

Abstract

Magnetic and self-heating properties of CoFe₂O₄, MgFe₂O₄ and NiFe₂O₄ nanoparticles were evaluated. MgFe₂O₄ and NiFe₂O₄, whose coercive forces are lower than that of CoFe₂O₄, exhibited higher temperature rise in self-heating excited by ac magnetic field of 150 Oe at 10 kHz. The energy efficiency of magnetic field in generating self heating of these ferrite nanoparticles is also analyzed. It was also evaluated the cytocompatibility of each ferrite nanoparticles.

Keywords

biomedical materials; cellular biophysics; cobalt compounds; coercive force; ferrites; magnesium compounds; magnetic particles; nanobiotechnology; nanoparticles; nickel compounds; CoFe₂O₄; MgFe₂O₄; NiFe₂O₄; ac magnetic field; coercive forces; cytocompatibility; energy efficiency; ferrite nanoparticles; frequency 10 kHz; magnetic characterization; magnetic nanoparticles; self-heating; Biomedical equipment; Energy efficiency; Ferrites; Heating; Magnetic analysis; Magnetic fields; Magnetic properties; Medical services; Nanoparticles; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference (INEC), 2010 3rd International

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-3543-2

Electronic_ISBN

978-1-4244-3544-9

Type

conf

DOI

10.1109/INEC.2010.5425136

Filename

5425136