Fluorescent chemodosimeter for Cys/Hcy with a large absorption shift and imaging in living cells

被引:123
作者
Hu, Mingming [1 ]
Fan, Jiangli [1 ]
Li, Honglin [1 ]
Song, Kedong [2 ]
Wang, Song [1 ]
Cheng, Guanghui [1 ]
Peng, Xiaojun [1 ]
机构
[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
[2] Dalian Univ Technol, Dalian R&D Ctr Stem Cell & Tissue Engn, Dalian 116023, Peoples R China
关键词
INTRAMOLECULAR CHARGE-TRANSFER; COLORIMETRIC CHEMOSENSOR; PROBE; CYSTEINE; HOMOCYSTEINE; THIOLS; DESIGN; SENSOR; BOND;
D O I
10.1039/c0ob00957a
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A novel molecule T1 with efficient intramolecular charge transfer was designed as a fluorescent chemodosimeter for cysteine (Cys) and homocysteine (Hcy). Upon addition of Cys/Hcy, T1 exhibited greatly enhanced fluorescence intensity as well as a large absorption peak shift (70 nm), and can be used for bioimaging of Cys/Hcy in living cells and detection in human plasma by visual color change. The detection mechanism was proved by H-1 NMR, mass spectrometry analysis and Gaussian calculations.
引用
收藏
页码:980 / 983
页数:4
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