单分散磁性Fe3O4纳米粒子的研究进展

具有良好的化学稳定性、生物相容性、磁响应性的单分散磁性Fe₃O₄纳米粒子,在药学、催化化学、医学和光电磁记录材料等方面都有很大的使用前景;而具有自组装光子晶体现象的Fe₃O₄磁性纳米粒子在包装、印刷、防伪等领域的应用中更展现出巨大的潜力。本文在对单分散磁性Fe₃O₄纳米粒子的制备方法进行了总结回顾,并对单分散磁性Fe₃O₄纳米粒子的光学应用领域做了简略的介绍,并对单分散磁性Fe₃O₄纳米粒子的发展趋向进行了展望,并总结分析现阶段大多数Fe₃O₄纳米粒子的合成方法在非极性溶液中分散性差,使其在实际应用中受到很大的限制,未来Fe₃O₄纳米粒子表面进行修饰将成为该领域的研究热点之一。

Research progress on monodisperse Fe3O4 magnetic nanoparticles

The monodisperse Fe₃O₄ magnetic nanoparticles have drawn more and more attention for their unique properties, such as good chemical stability, biocompatibility, magnetic response and so on, which show great pratical potential in the fields of pharmacy, and optical/magnetic recording materials.Particularly, The monodisperse Fe₃O₄ magnetic nanoparticles can also be directly employed for constructing colloidal photonic crystals with highly tunable stop bands which can be moved across the entire visible spectral region.In this paper, several preparation methods of monodisperse Fe₃O₄ magnetic nanoparticles were summarized, the applications fields were briefly introduced and the development trends of monodisperse Fe₃O₄ magnetic nanoparticles were discussed.It was pointed out that the applications of Fe₃O₄ nanoparticles are limited due to poor dispersion in non-polar solution.Therefore, the surface modification of Fe₃O₄ nanoparticles will be the focus study in this area.