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A PET-based fluorometric chemosensor for the determination of mercury(II) and pH, and hydrolysis reaction-based colorimetric detection of hydrogen sulfide
- Author(s)
- Lee, Jae Jun, Kim, Yong Sung, Nam, Eunju, Lee, Sun Young, Lim, Mi Hee, Kim, Cheal
- Issued Date
- 2016-04
- Citation
- DALTON TRANSACTIONS, v.45, no.13, pp.5700 - 5712
- Abstract
- A simple fluorescent chemosensor 1 for the detection of Hg2+ and pH was developed by a combination of 2-aminoethyl piperazine and 4-chloro-7-nitrobenz-2-oxa-1,3-diazole. The sensor 1 showed OFF-ON behavior for different colors of fluorescence in the presence of Hg2+ and under acidic conditions, respectively, in a near-perfect aqueous solution. The turn-on fluorescence caused by inhibition of photoinduced electron transfer was explained by theoretical calculations. 1 could be used to quantify Hg2+ in water samples, and its in vitro studies with HeLa cells showed fluorescence in the presence of Hg2+. In addition, 1 could selectively detect S2- by changing its color from orange to pink in a near-perfect aqueous solution. Moreover, 1 could be used as a practical, visible test kit for S2-.
- Publisher
- ROYAL SOC CHEMISTRY
- ISSN
- 1477-9226
- Keyword (Author)
- EFFECTIVE CORE POTENTIALS, FLUORESCENT-PROBE, MOLECULAR CALCULATIONS, HG2+, RHODAMINE, BINDING, IONS, CHEMODOSIMETER, RECOGNITION, REGULATOR
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