Preparation of magnetic nanoparticles for magnetic fluid hyperthermia

Author

Atsumi, T. ; Jeyadevan, B. ; Sato, Y. ; Tamura, K. ; Aiba, S. ; Tohji, K.

Author_Institution

Grad. Sch. of Environ. Studies, Tohoku Univ., Sendai, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

1555

Lastpage

1556

Abstract

In this paper, the determination and preparation of suitable magnetic material for magnetic fluid hyperthermia (MFH) is presented. It was suggested that the highest heating rate could be obtained by using maghemite with particle diameter of 15 nm. The heating rate of magnetite particle with diameter less than 10 nm was found to generate heat higher than that of cobalt and barium ferrites. Therefore, the magnetite with diameters ranging from 11-13 nm was selected for MFH. The magnetite nanoparticles with diameter of 12 nm was synthesized using standard coprecipitation method. The heat dissipation of magnetic particles with varying average diameters was also reported.

Keywords

hyperthermia; iron compounds; magnetic cooling; magnetic fluids; magnetic particles; nanoparticles; nanotechnology; precipitation (physical chemistry); 11 to 13 nm; Fe₃O₄; coprecipitation; heat dissipation; maghemite; magnetic fluid hyperthermia; magnetic nanoparticles; Cancer; Ferrites; Heating; Hyperthermia; Magnetic fields; Magnetic liquids; Magnetic materials; Magnetic separation; Magnetosphere; Nanoparticles;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464211

Filename

1464211