Fe3O4@SiO2纳米材料的功能化衍生及其应用进展

The Functionalized Derivative of Fe3O4@SiO2 Nanomaterials and its Application Progress

磁性纳米微粒(Fe3O4)作为受欢迎的功能材料,有磁性但易团聚,Si O2有效阻止了磁性纳米颗粒间的相互团聚,并且具有良好的生物相容性,而且硅壳的表面含有丰富的羟基,增强了其亲水性,而且容易对表面进行修饰。本文综述以Fe3O4@SiO2为母核的功能化的磁性纳米复合材料,其在药物靶向载体、细胞标记、核磁共振成像、固定化酶、工业催化、环境治理领域应用的最新进展。

As a popular functional material,magnetic nanoparticles(Fe3 O4)are magnetic but easy to agglomerate.SiO2 effectively prevents the aggregation of magnetic nanoparticles and has good biocompatibility.Moreover,the surface of the SiO2 is rich in hydroxyl groups,enhancing its hydrophilicity and easy to modify the surface.This paper reviews the recent advances in the application of Fe3 O4@SiO2 functional magnetic nanocomposites in the fields of drug targeting carriers,cell markers,magnetic resonance imaging,immobilized enzymes,industrial catalysis and environmental governance.