树枝状纤维形二氧化硅纳米粒子的研究进展

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与传统二氧化硅介孔材料相比,树枝状纤维形二氧化硅纳米粒子(DendriticFibrousNano-silica,DFNS),特别是具备三维中心辐射状孔道和多级孔结构的球形DFNS拥有较高的比表面积、较大的孔体积、较高的孔渗透性和粒子内表面更易接触性等优点。客体物质(如极小的纳米粒子)能够沿着中心辐射状孔道进行负载和/或输送,甚至与化学改性所得内部活性位点发生反应。因此,DFNS是一种富有前景的载体平台,可以用来构筑新型纳米催化剂、吸附剂、基因/蛋白质/药物的递送系统等。大量研究表明:球形DFNS与生俱来
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