Effects of core/shell structure on magnetic induction heating promotion in Fe3O4/γ-Fe2O3 magnetic nanoparticles for hyperthermia

被引：13
|
作者：
Lee, Shih-Chi [1 ]
Fu, Chao-Ming [1 ]
Chang, Fu-Hsiung [2 ]
机构：
[1] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Inst Biochem & Mol Biol, Taipei 10051, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 16期
关键词：
ANISOTROPY;
D O I：
10.1063/1.4825270
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Fe3O4/gamma-Fe2O3 core-shell magnetic nanoparticles have demonstrated superior heating efficiency by applying the alternating magnetic field. The magnetic induction heating properties of core-shell magnetic nanoparticles were analyzed by the rate-dependent hysteresis model, taken into account the magnetic anisotropies and actual size distribution of particles. The analyzed results have disclosed the significance of magnetic anisotropies and shell-thickness to the promotion of magnetic induction heating performance. Further experiments about the cancer cells with uptake of these core-shell magnetic nanoparticles conjugated biocompatible cationic liposomes have achieved in vitro intracellular magnetically induced hyperthermia under a weak alternating magnetic field. (C) 2013 AIP Publishing LLC.
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页数：4
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