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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 12
BKCSDE 35(12)
December 20, 2014 

A Carbazole Based Bimodal “Turn-On” Fluorescent Probe for Biothiols (Cysteine/Homocysteine) and Fluoride: Sensing, Imaging and its Applications
Matinder Kaur, Byungkwon Yoon, Rajesh Kumar, Min Ju Cho, Hak Joong Kim, Jong Seung Kim, Dong Hoon Choi*
Carbazole probe, Cysteine/homocysteine sensing, Fluoride recognition, Molecular keypad lock, Bioimaging
A well-known carbazole-based precursor (probe 1) was used for the detection of cysteine/homocysteine and fluoride. Probe 1 shows a “turn-on” response to cysteine/homocysteine and fluoride via enhancement in emission intensity at 442 nm and 462 nm respectively, in solutions and living cells. Furthermore, probe 1 behaves as a fluorescent molecular switch between cysteine/homocysteine and fluoride as the chemical inputs, which have been used for the development of a combinatorial logic circuit and a molecular keypad lock.
3437 - 3442
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