中国物理B ›› 2014, Vol. 23 ›› Issue (3): 37503-037503.doi: 10.1088/1674-1056/23/3/037503

所属专题: TOPICAL REVIEW — Magnetism, magnetic materials, and interdisciplinary research

• SPECIAL TOPIC --- Non-equilibrium phenomena in soft matters • 上一篇    下一篇

Magnetic iron oxide nanoparticles:Synthesis and surface coating techniques for biomedical applications

孙圣男a, 魏超a, 朱赞赞b, 侯仰龙c, Subbu S Venkatramana, 徐梽川a   

  1. a School of Materials and Science Engineering, Nanyang Technological University, Singapore 639798, Singapore;
    b Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States;
    c Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
  • 收稿日期:2014-01-02 出版日期:2014-03-15 发布日期:2014-03-15
  • 基金资助:
    Project supported by Start-up Grant of Nanyang Technological University and Tier 1 Grant of Ministry of Education, Singapore (RGT8/13).

Magnetic iron oxide nanoparticles:Synthesis and surface coating techniques for biomedical applications

Sun Sheng-Nan (孙圣男)a, Wei Chao (魏超)a, Zhu Zan-Zan (朱赞赞)b, Hou Yang-Long (侯仰龙)c, Subbu S Venkatramana, Xu Zhi-Chuan (徐梽川)a   

  1. a School of Materials and Science Engineering, Nanyang Technological University, Singapore 639798, Singapore;
    b Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States;
    c Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
  • Received:2014-01-02 Online:2014-03-15 Published:2014-03-15
  • Contact: Subbu S Venkatraman, Xu Zhi-Chuan E-mail:assubbu@ntu.edu.sg;xuzc@ntu.edu.sg
  • Supported by:
    Project supported by Start-up Grant of Nanyang Technological University and Tier 1 Grant of Ministry of Education, Singapore (RGT8/13).

摘要: Iron oxide nanoparticles are the most popular magnetic nanoparticles used in biomedical applications due to their low cost, low toxicity, and unique magnetic property. Magnetic iron oxide nanoparticles, including magnetite (Fe3O4) and maghemite (γ-Fe2O3), usually exhibit a superparamagnetic property as their size goes smaller than 20 nm, which are often denoted as superparamagnetic iron oxide nanoparticles (SPIONs) and utilized for drug delivery, diagnosis, therapy, and etc. This review article gives a brief introduction on magnetic iron oxide nanoparticles in terms of their fundamentals of magnetism, magnetic resonance imaging (MRI), and drug delivery, as well as the synthesis approaches, surface coating, and application examples from recent key literatures. Because the quality and surface chemistry play important roles in biomedical applications, our review focuses on the synthesis approaches and surface modifications of iron oxide nanoparticles. We aim to provide a detailed introduction to readers who are new to this field, helping them to choose suitable synthesis methods and to optimize the surface chemistry of iron oxide nanoparticles for their interests.

关键词: Fe3O4, γ-Fe2O3, synthesis, surface coating, biomedical application

Abstract: Iron oxide nanoparticles are the most popular magnetic nanoparticles used in biomedical applications due to their low cost, low toxicity, and unique magnetic property. Magnetic iron oxide nanoparticles, including magnetite (Fe3O4) and maghemite (γ-Fe2O3), usually exhibit a superparamagnetic property as their size goes smaller than 20 nm, which are often denoted as superparamagnetic iron oxide nanoparticles (SPIONs) and utilized for drug delivery, diagnosis, therapy, and etc. This review article gives a brief introduction on magnetic iron oxide nanoparticles in terms of their fundamentals of magnetism, magnetic resonance imaging (MRI), and drug delivery, as well as the synthesis approaches, surface coating, and application examples from recent key literatures. Because the quality and surface chemistry play important roles in biomedical applications, our review focuses on the synthesis approaches and surface modifications of iron oxide nanoparticles. We aim to provide a detailed introduction to readers who are new to this field, helping them to choose suitable synthesis methods and to optimize the surface chemistry of iron oxide nanoparticles for their interests.

Key words: Fe3O4, γ-Fe2O3, synthesis, surface coating, biomedical application

中图分类号:  (Magnetic oxides)

  • 75.47.Lx
75.75.Cd (Fabrication of magnetic nanostructures) 61.46.-w (Structure of nanoscale materials) 81.16.Be (Chemical synthesis methods)