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- Title
An Easily Accessible Ionic Aggregation‐Induced Emission Luminogen with Hydrogen‐Bonding‐Switchable Emission and Wash‐Free Imaging Ability.
- Authors
Chen, Yuncong; Zhang, Weijie; Zhao, Zheng; Cai, Yuanjing; Gong, Junyi; Kwok, Ryan T. K.; Lam, Jacky W. Y.; Sung, Herman H. Y.; Williams, Ian D.; Tang, Ben Zhong
- Abstract
Abstract: Ionic fluorophores are powerful tools for the study of environmental science and bio‐imaging. However, traditional ionic dyes usually require long synthetic steps and suffer from a quenching effect caused by aggregation. A water‐soluble ionic aggregation‐induced emission luminogen called DBTA is presented, which is readily accessed by a one‐step reaction. The switchable emission manipulated by hydrogen bonding provided solid evidence for the restriction of intramolecular motions as the mechanism of aggregation‐induced emission. DBTA can not only differentiate solvents with different H‐bond donor acidities but also capable of wash‐free imaging in living HeLa cells and fish larva.
- Subjects
FLUOROPHORES; BIO-imaging sensors; CLUSTERING of particles; HYDROGEN bonding; NUCLEAR magnetic resonance spectroscopy
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 18, p5105
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201800772