Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 193, Issue -, Pages 173-177Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.11.051
Keywords
Benzo[e]indolium; Bisulfite; Chemosensor; Fluorescence
Funding
- National Natural Science Foundation of China [21301126]
- Shanxi Province Science Foundation for Youths [2013021009-3]
- Youth Foundation of Taiyuan University of Technology [2012L018, 2012L062]
- Postgraduate Innovation Foundation of Taiyuan University of Technology [20138017]
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A new fluorescent turn-on probe for HSO3- bearing a benzo[e]indolium moiety was developed. The HSO3- undergoes 1,4-addition reaction with the C-4 atom in the ethylene group, resulting in a prominent fluorescence enhancement and a fluorescent color change. The reaction could be completed in 1 min in PBS buffer, and displayed a high selectivity and sensitivity for HSO3- against other anions, including CN-. Moreover, the practical value of the probe was confirmed by application to detect the level of HSO3- in sugar samples. (C) 2013 Elsevier B.V. All rights reserved.
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