Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 9, Issue 4, Pages 980-983Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0ob00957a
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Funding
- NSF of China [21076032, 20725621, 20923006]
- National Basic Research Program of China [2009CB724706]
- Ministry of Education of China [IRT0711, 707016]
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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.
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