A PET-based fluorometric chemosensor for the determination of mercury(II) and pH, and hydrolysis reaction-based colorimetric detection of hydrogen sulfide

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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
Issue Date
2016-04
Language
English
Article Type
Article
Citation

DALTON TRANSACTIONS, v.45, no.13, pp.5700 - 5712

ISSN
1477-9226
DOI
10.1039/c6dt00147e
URI
http://hdl.handle.net/10203/240279
Appears in Collection
CH-Journal Papers(저널논문)
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