Gorelikov Ivan, Matsuura Naomi
Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario M4N 3M5, Canada.
Nano Lett. 2008 Jan;8(1):369-73. doi: 10.1021/nl0727415. Epub 2007 Dec 12.
A generalized, single-step synthesis procedure to coat individual cetyltrimethyl ammonium bromide- (CTAB) capped nanoparticles with a thin layer of mesoporous silica is outlined. This coating method was demonstrated on CTAB-capped Au nanorods and CTAB-transferred CdSe/ZnS quantum dots with silica coatings approximately 15 nm thick containing pores approximately 4 nm in diameter. This porous silica coating can serve as a platform for further surface modification to facilitate the rapid translation of nanoparticles to a wide range of end applications.
概述了一种通用的单步合成程序，用于在单个十六烷基三甲基溴化铵（CTAB）包覆的纳米颗粒上包覆一层薄的介孔二氧化硅。这种包覆方法已在CTAB包覆的金纳米棒和CTAB转移的CdSe/ZnS量子点上得到验证，所形成的二氧化硅涂层厚度约为15 nm，包含直径约为4 nm的孔隙。这种多孔二氧化硅涂层可作为进一步表面修饰的平台，以促进纳米颗粒快速转化为广泛的最终应用。
