吴成伟

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研究员

博士生导师

硕士生导师

性别:男

毕业院校:清华大学

学位:博士

所在单位:力学与航空航天学院

学科:工程力学. 生物与纳米力学

办公地点:力学楼306

联系方式:0411-84706353 13332292398 cwwu@dlut.edu.cn

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Effect of chromium ion substitution of ZnCo ferrites on magnetic induction heating

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论文类型:期刊论文

第一作者:Yu, Xiaogang

通讯作者:Zhang, W (reprint author), Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

合写作者:Yang, Renpeng,Wu, Chengwei,Zhang, Wei

发表时间:2020-07-25

发表刊物:JOURNAL OF ALLOYS AND COMPOUNDS

收录刊物:SCIE

卷号:830

ISSN号:0925-8388

关键字:Magnetic nanoparticle; Curie temperature; Heating efficiency; Magnetic induction hyperthermia

摘要:Magnetic nanoparticles (MNPs) with a suitable Curie temperature and high heating efficiency are desired in magnetic induction hyperthermia (MIH) with self-regulating temperature characteristics. Here, the influence of CP+ substitution on the Curie temperature and heating efficiency (defined as specific absorption rate, SAR) of Zno 54Coo 46CrxFez-x04 (0.45 < x < 0.75) nanoparticles synthesized by hydrothermal method was investigated. With the increasing Cr3+ content, the Curie temperature decreases linearly from 102.5 C to 28.6 C and the SAR decreases from 54.3 W g1 to 7.4 W g-1. Noticeably, when x = 0.7, the MNPs have a SAR of 21.8 W g(-1) and the temperature of the MNPs suspension can self-regulate at 43.8 C, which owns the potential for self-regulating temperature MIH. To our knowledge, the SAR of 21.8 W g(-1), under an alternating magnetic field within the biological safety limit (H.f < 5 x 109 A m(-1) s(-1)), is the highest value for self-regulating temperature MIH. (C) 2020 Elsevier B.V. All rights reserved.