中国物理B ›› 2021, Vol. 30 ›› Issue (10): 104402-104402.doi: 10.1088/1674-1056/ac0789

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Hierarchical lichee-like Fe3O4 assemblies and their high heating efficiency in magnetic hyperthermia

Wen-Yu Li(李文宇)1, Wen-Tao Li(李文涛)4, Bang-Quan Li(李榜全)1, Li-Juan Dong(董丽娟)1, Tian-Hua Meng(孟田华)1, Ge Huo(霍格)3, Gong-Ying Liang(梁工英)2, and Xue-Gang Lu(卢学刚)2,†   

  1. 1 Institute of Solid State Physics, Shanxi Datong University, Datong 037009, China;
    2 MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China;
    3 College of Material Science and Engineering, Shenzhen University, Shenzhen 518061, China;
    4 No. 93601 Troops of PLA
  • 收稿日期:2021-01-05 修回日期:2021-03-20 接受日期:2021-06-03 发布日期:2021-09-17
  • 通讯作者: Xue-Gang Lu E-mail:xglu@xjtu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61975162), Youth Research Foundation of Shanxi Datong University (Grant No. 2019Q1), Important R&D Projects of Shanxi Province, China (Grant No. 201803D121083), and Shanxi Scholarship Council, China (Grant No. 2020-135).

Hierarchical lichee-like Fe3O4 assemblies and their high heating efficiency in magnetic hyperthermia

Wen-Yu Li(李文宇)1, Wen-Tao Li(李文涛)4, Bang-Quan Li(李榜全)1, Li-Juan Dong(董丽娟)1, Tian-Hua Meng(孟田华)1, Ge Huo(霍格)3, Gong-Ying Liang(梁工英)2, and Xue-Gang Lu(卢学刚)2,†   

  1. 1 Institute of Solid State Physics, Shanxi Datong University, Datong 037009, China;
    2 MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China;
    3 College of Material Science and Engineering, Shenzhen University, Shenzhen 518061, China;
    4 No. 93601 Troops of PLA
  • Received:2021-01-05 Revised:2021-03-20 Accepted:2021-06-03 Published:2021-09-17
  • Contact: Xue-Gang Lu E-mail:xglu@xjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61975162), Youth Research Foundation of Shanxi Datong University (Grant No. 2019Q1), Important R&D Projects of Shanxi Province, China (Grant No. 201803D121083), and Shanxi Scholarship Council, China (Grant No. 2020-135).

摘要: A nontoxic and biocompatible thermoseed is developed for the magnetic hyperthermia. Two kinds of thermoseed materials: hierarchical hollow and solid lichee-like Fe3O4 assemblies, are synthesized by a facile hydrothermal method. The crystal structure of Fe3O4 assemblies are characterized by x-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Moreover, the prepared Fe3O4 assemblies are used as a magnetic heat treatment agent, and their heating efficiency is investigated. Compared to solid assembly, hollow lichee-like Fe3O4 assembly exhibits a higher specific absorption rate of 116.53 W/g and a shorter heating time, which is ascribed to its higher saturation magnetization, larger initial particle size, and the unique hierarchical hollow structure. Furthermore, the magnetothermal effect is primarily attributed to Néel relaxation. Overall, we propose a facile and convenient approach to enhance the heating efficiency of magnetic nanoparticles by forming hollow hierarchical assemblies.

关键词: magnetic hyperthermia, heating efficiency, hierarchical Fe3O4 assemblies

Abstract: A nontoxic and biocompatible thermoseed is developed for the magnetic hyperthermia. Two kinds of thermoseed materials: hierarchical hollow and solid lichee-like Fe3O4 assemblies, are synthesized by a facile hydrothermal method. The crystal structure of Fe3O4 assemblies are characterized by x-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Moreover, the prepared Fe3O4 assemblies are used as a magnetic heat treatment agent, and their heating efficiency is investigated. Compared to solid assembly, hollow lichee-like Fe3O4 assembly exhibits a higher specific absorption rate of 116.53 W/g and a shorter heating time, which is ascribed to its higher saturation magnetization, larger initial particle size, and the unique hierarchical hollow structure. Furthermore, the magnetothermal effect is primarily attributed to Néel relaxation. Overall, we propose a facile and convenient approach to enhance the heating efficiency of magnetic nanoparticles by forming hollow hierarchical assemblies.

Key words: magnetic hyperthermia, heating efficiency, hierarchical Fe3O4 assemblies

中图分类号:  (Heat conduction)

  • 44.10.+i
87.85.J- (Biomaterials) 75.75.-c (Magnetic properties of nanostructures)