含二氧化硅组份Janus纳米粒子的制备方法和应用研究进展

Progress of preparation and application of silica Janus nanomaterials

Janus纳米粒子的非对称结构赋予其在空间结构和物理化学性质的各向异性,在半导体、催化、分散介质、生物医药等领域表现出优于普通纳米材料特性,是近年来纳米材料的研究热点.近些年来的研究报道多集中在含二氧化硅组份的Janus纳米粒子上,按其化学组成主要分为无机物-二氧化硅和聚合物-二氧化硅两大类.按此分类分析比较了Janus纳米粒子的制备方法,并介绍了其在药物输送、表面活性剂和催化等领域的应用现状.

The asymmetric structure of Janus nanoparticles affords their anisotropy in spatial structure and physicochemical properties.They have abstracted great attention because of their excellent properties in semiconductor,catalysis,dispersion,biomedicine,and so on.The researches of Janus nanoparticles have been focused on the ones containing silica component.The silica Janus nanoparticles can be divided into two species based on their chemical components:inorganic-silica and polymer-silica Janus nanoparticles.This review introduced the preparation and application of silica Janus nanomaterials in durg delivery,surfactants and catalysis.