Study of Hyperthermia Through the Bioplasma Treatment and Magnetic Properties of Fe3O4 Nanoparticles

被引：7

作者：

Choi, Hyunkyung ^{[1
]}

Kim, Sam Jin ^{[1
]}

Choi, Eun Ha ^{[2
]}

Kim, Chul Sung ^{[1
]}

机构：

[1] Kookmin Univ, Dept Phys, Seoul 136702, South Korea

[2] Kwangwoon Univ, Plasma Biosci Res Ctr, Seoul 139701, South Korea

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

Fe3O4; hyperthermia; Mossbauer spectroscopy; nanoparticle; plasma treatment; MOSSBAUER;

D O I：

10.1109/TMAG.2015.2435062

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fe3O4 nanoparticles were prepared by the high-temperature thermal decomposition method. Based on the Rietveld refinement, the crystal structure was determined to be a cubic spinel with space group of Pnma. The size and the shape of the nanoparticles were examined using a high-resolution transmission electron microscope (HR-TEM). Also, the Fe3O4 nanoparticles were treated with argon plasma and compared with untreated Fe3O4 nanoparticles. The X-ray diffraction patterns and HR-TEM images show small structural changes. Also, when exposed under Ar plasma, the saturation magnetization of nanoparticles exposed for 30 min was 73.705 emu/g, highest among the samples studied. The self-heating temperature of the sample increases up to 94.6 degrees C after the plasma treatment for 30 min. In addition, Mossbauer measurements were performed with a high external field of 5 T and based on the detailed analysis of the Mossbauer spectra, the spin canting angles in Fe3O4 nanoparticles were determined.

引用

页数：4

共 10 条

[1] Magnetic nanoparticle-based therapeutic agents for thermo-chemotherapy treatment of cancer [J].