中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (10): 1626-1632.doi: 10.3969/j.issn.2095-4344.1598

• 生物材料综述 biomaterial review • 上一篇    下一篇

功能化Fe3O4磁性纳米微粒在生物医学领域的应用

马 捷,王 倩   

  1. 解放军空军军医大学西京医院骨科,陕西省西安市 710032
  • 收稿日期:2018-11-26
  • 通讯作者: 王倩,副主任护师,解放军空军军医大学西京医院骨科,陕西省西安市 710032
  • 作者简介:马捷,女,1981年生,陕西省西安市人,汉族,主管护师,主要从事护理管理研究。

Applications of functional Fe3O4 magnetic nanoparticles in biomedical field

Ma Jie, Wang Qian   

  1. Department of Orthopedics, Xijing Hospital of Air Force Medical University, Xi’an 710032, Shaanxi Province, China
  • Received:2018-11-26
  • Contact: Wang Qian, Associate chief nurse, Department of Orthopedics, Xijing Hospital of Air Force Medical University, Xi’an 710032, Shaanxi Province, China
  • About author:Ma Jie, Nurse in charge, Department of Orthopedics, Xijing Hospital of Air Force Medical University, Xi’an 710032, Shaanxi Province, China

摘要:

文章快速阅读:

 

文题释义:
纳米微粒的超顺磁性:是指粒子粒径小于30 nm时通常表现出来的特性,即当有外部磁场时,纳米微粒能够迅速发生磁化而具有磁性特性,在撤去外部磁场后,纳米微粒立即消磁且无磁性残留。
基因治疗:基因治疗过程中基因载体的选择非常重要,Fe3O4磁性纳米微粒作为基因载体能够通过电荷吸附的方式与基因质粒结合,不仅基因的负荷容量大,同时还能够保护基因免受核酸酶的破坏降解;另外,还能够很大程度上确保基因的稳定表达。因此,Fe3O4磁性纳米微粒是很好的基因载体。
 
 
背景:Fe3O4磁性纳米微粒因其特有的超顺磁性、生物相容性、靶向性及低的生物毒性特性,逐渐成为各领域的研究热点。
目的:综述功能化Fe3O4磁性纳米微粒的技术创新及其在生物医学领域的应用拓展。
方法:作者通过检索2001年1月至2018年10月中国期刊全文数据库和PubMed数据库发表的文献,选择Fe3O4磁性纳米材料表面改性技术方法及其在生物医学领域应用进展方面的文献,检索关键词为“Fe3O4磁性纳米微粒、表面改性、生物医学;magnetic Fe3O4 nanoparticles、surface modification、biomedicine”。

结果与结论:Fe3O4磁性纳米微粒容易发生氧化反应而聚集,表面缺乏偶联基团限制了微粒的功能化。因此,要实现Fe3O4磁性纳米微粒的进一步应用,需要通过物理、化学的方法对Fe3O4磁性纳米微粒表面进行修饰、处理和加工,聚合物分子、有机小分子及无机材料均可作为Fe3O4磁性纳米微粒的表面改性材料。目前Fe3O4磁性纳米微粒在生物医学相继被应用于一些新的领域,如磁共振成像、靶向药物及基因载体、免疫检测、生物分离及固化酶等。

ORCID: 0000-0002-7868-1745(马捷)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 磁性纳米微粒, Fe3O4, 表面改性, 靶向治疗, 生物医药, 生物材料

Abstract:

BACKGROUND: Fe3O4 magnetic nanoparticles gradually become a hot research point in related research fields due to their unique superparamagnetic property, biocompatibility, specific targeting and low cytotoxicity. OBJECTIVE: To review the development of Fe3O4 magnetic nanoparticles in recent years as well as their applications in the biomedical field.

METHODS: The first author retrieved the PubMed and CNKI databases for relevant articles published from January 2001 to October 2018 using the keywords of “magnetic Fe3O4 nanoparticles”, “surface modification”, “biomedicine” in English and Chinese, respectively.

RESULTS AND CONCLUSION: Fe3O4 magnetic nanoparticles are prone to oxidation and aggregation, and the lack of coupling groups on the surface limits the functionalization of the nanoparticles. Therefore, surface modification and processing of Fe3O4 magnetic nanoparticles by physical and chemical methods are warranted to achieve their further applications. Polymer molecules, organic small molecules and inorganic materials can be used for surface modification of Fe3O4 magnetic nanoparticles. At present, Fe3O4 magnetic nanoparticles have been applied in some new biomedical fields, such as magnetic resonance imaging, targeted drugs and gene carriers, immunoassays, biological separation and solidification enzymes.

 

Key words: Nanoparticles, Molecular Targeted Therapy, Tissue Engineering

中图分类号: