【Nanotechnology, 2008, 19, 315602.】The formation of helical mesoporous silica nanotubes
writer：Xiaobing Wan, Xianfeng Pei, Huanyu Zhao, Yuanli Chen, Yongmin Guo, Baozong Li, Kenji Hanabusa, and Yonggang Yang
keywords：helical mesoporous silica
source：期刊
specific source：Nanotechnology
Issue time：2008年
Xiaobing Wan, Xianfeng Pei, Huanyu Zhao, Yuanli Chen, Yongmin Guo, Baozong Li, Kenji Hanabusa, and Yonggang Yang
Nanotechnology, 2008, 19, 315602.
Abstract:
Three chiral cationic gelators were synthesized. They can form translucent hydrogels in pure water. These hydrogels become highly viscous liquids under strong stirring. Mesoporous silica nanotubes with coiled pore channels in the walls were prepared using the self-assemblies of these gelators as templates. The mechanism of the formation of this hierarchical nanostructure was studied using transmission electron microscopy at different reaction times. The results indicated that there are some interactions between the silica source and the gelator. The morphologies of the self-assemblies of gelators changed gradually during the sol–gel transcription process. It seems that the silica source directed the organic self-assemblies into helical nanostructures.