Journal
ORGANIC LETTERS
Volume 10, Issue 24, Pages 5577-5580Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol802436j
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Funding
- Chinese Ministry of Education [108167]
- National Science Foundation of China [20872032]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- State Education Ministry
- Hunan University
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4-(1H-phenanthro[9,10-d]imidazol-2-yl)benzaldehyde 1 was rationally designed as a novel ratiometric fluorescent probe for cysteine and homocysteine. Upon addition of cysteine or homocysteine, notably, the probe displayed a very large (125 nm) hypsochromic shift in emission due to switching off intramolecular charge transfer. This large emission wavelength shift may allow probe 1 to be employed for quantitatively detecting Cys/Hcy.
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