文献类型：期刊文献

英文题名：Visual detection of biological thiols based on lightening quantum dot-TiO2 composites

作者：Mu, Qin[1];Li, Yan[1];Ma, Yunfei[1];Zhong, Xinhua[1]

机构：[1]E China Univ Sci & Technol, Inst Appl Chem, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：139

期号：5

起止页码：996

外文期刊名：ANALYST

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000330778400016)】；

基金：This work was supported by the Chenguang Program of the Shanghai Education Commission (11CG31), the National Natural Science Foundation of China (no. 21175043 and 21301059), the Science and Technology Commission of Shanghai Municipality (11JC1403100 and 12NM0504101), and the Fundamental Research Funds for the Central Universities.

语种：英文

摘要：The quenched fluorescence of quantum dots (QDs) attached to TiO2 nanoparticles was selectively switched on by biothiols through ligand replacement, which makes it feasible for facilely sensing biothiols based on the fluorescence turn on mechanism. The present sensor exhibited excellent selectivity and high sensitivity. Furthermore, a novel fluorescent indicating paper was constructed by immobilizing the probe on filter paper to visually detect biothiols in which only a UV lamp was used.