文献类型：期刊文献

英文题名：Effective enhancement of fluorescence signals in rotaxane-doped reversible hydrosol-gel systems

作者：Zhu, Liangliang[1]; Ma, Xiang[1]; Ji, Fengyuan[1]; Wang, Qiaochun[1]; Tian, He[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2007

卷号：13

期号：33

起止页码：9216

外文期刊名：CHEMISTRY-A EUROPEAN JOURNAL

收录：;EI(收录号：20074910960791);WOS:【SCI-EXPANDED(收录号:WOS:000251276100005)】；

语种：英文

外文关键词：cyclodextrins; fluorescence; hydrosol-gel; photoisomerization; reversible systems; rotaxanes

摘要：Rotaxane-based nanoscale architectures have a huge potential to be processed into widely applied devices. In this work, light-driven rotaxanes with fluorescent chromophores based on a-cyclodextrin (alpha-CyD) have been doped into amphoteric thermoreversible hydrosol-gels to form a new type of disperse system with reversible optical signals. The photoisomerizations with alpha-CyD shuttling have been studied by induced circular dichroism (ICD). Compared with their corresponding solutions, the rotaxane-doped hydrosol-gel systems produce much more obvious fluorescent binary signals.