Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions
A new macromolecule possessing two dansyl moieties and based on 2-[4-(2-aminoethylthio)butylthio]ethanamine was prepared as a fluorescent sensor and its mercury sensing properties toward various transition metal, alkali, and alkali earth ions were investigated. The designed compound exhibited pronou...
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th-cmuir.6653943832-506822018-09-04T04:44:05Z Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions Nantanit Wanichacheva Supranee Watpathomsub Vannajan Sanghiran Lee Kate Grudpan Chemistry A new macromolecule possessing two dansyl moieties and based on 2-[4-(2-aminoethylthio)butylthio]ethanamine was prepared as a fluorescent sensor and its mercury sensing properties toward various transition metal, alkali, and alkali earth ions were investigated. The designed compound exhibited pronounced Hg2+-selective ON-OFF type fluorescence switching upon binding. The new compound provided highly selective sensing to Hg2+in acetonitrile-water solvent mixtures with a detection limit of 2.49 x 10-7M or 50 ppb. The molecular modeling results indicated that ions-recognition of the sensor originated from a self assembly process of the reagent and Hg2+to form a helical wrapping structure with the favorable electrostatic interactions of Hg2+coordinated with sulfur, oxygen, nitrogen atoms and aromatic moieties. © 2010 by the authors. 2018-09-04T04:44:05Z 2018-09-04T04:44:05Z 2010-03-01 Journal 14203049 2-s2.0-77950359995 10.3390/molecules15031798 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77950359995&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50682 |
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Chemistry Nantanit Wanichacheva Supranee Watpathomsub Vannajan Sanghiran Lee Kate Grudpan Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions |
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A new macromolecule possessing two dansyl moieties and based on 2-[4-(2-aminoethylthio)butylthio]ethanamine was prepared as a fluorescent sensor and its mercury sensing properties toward various transition metal, alkali, and alkali earth ions were investigated. The designed compound exhibited pronounced Hg2+-selective ON-OFF type fluorescence switching upon binding. The new compound provided highly selective sensing to Hg2+in acetonitrile-water solvent mixtures with a detection limit of 2.49 x 10-7M or 50 ppb. The molecular modeling results indicated that ions-recognition of the sensor originated from a self assembly process of the reagent and Hg2+to form a helical wrapping structure with the favorable electrostatic interactions of Hg2+coordinated with sulfur, oxygen, nitrogen atoms and aromatic moieties. © 2010 by the authors. |
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Journal |
author |
Nantanit Wanichacheva Supranee Watpathomsub Vannajan Sanghiran Lee Kate Grudpan |
author_facet |
Nantanit Wanichacheva Supranee Watpathomsub Vannajan Sanghiran Lee Kate Grudpan |
author_sort |
Nantanit Wanichacheva |
title |
Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions |
title_short |
Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions |
title_full |
Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions |
title_fullStr |
Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions |
title_full_unstemmed |
Synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (II) ions |
title_sort |
synthesis of a novel fluorescent sensor bearing dansyl fluorophores for the highly selective detection of mercury (ii) ions |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77950359995&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50682 |
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