A PET-based fluorometric chemosensor for the determination of mercury(ii) and pH, and hydrolysis reaction-based colorimetric detection of hydrogen sulfide. Issue 13 (1st March 2016)

• Record Type: Journal Article
• Authors: Lee, Jae Jun; Kim, Yong Sung; Nam, Eunju; Lee, Sun Young; Lim, Mi Hee; Kim, Cheal
• Is Part Of: Dalton transactions. Volume 45:Issue 13(2016)
• Page Start: 5700
• Page End: 5712
• Publication Date: 2016-03-01
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c6dt00147e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A selective chemosensor was developed for the fluorescence detection of Hg 2+ and pH, and the colorimetric detection of S 2− . Abstract : A simple fluorescent chemosensor1 for the detection of Hg 2+ and pH was developed by a combination of 2-aminoethyl piperazine and 4-chloro-7-nitrobenz-2-oxa-1, 3-diazole. The sensor1 showed OFF–ON behavior for different colors of fluorescence in the presence of Hg 2+ 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 Hg 2+ in water samples, and its in vitro studies with HeLa cells showed fluorescence in the presence of Hg 2+ . In addition, 1 could selectively detect S 2− 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 S 2− .