Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits

A novel macromolecule based on 2-[3-(2-aminoethylthio)propylthio]ethanamine covalently bound to two 7-nitrobenzo-2-oxa-1,3-diazolyl moieties was prepared as a fluoroionophore and a chromophore for the selective optical detection of Hg2+. The sensor was prepared in two steps and its fluoroionophoric...

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Main Authors:	Nantanit Wanichacheva, Monchai Siriprumpoonthum, Anyanee Kamkaew, Kate Grudpan
Format:	Journal
Published:	2018
Subjects:	Biochemistry, Genetics and Molecular Biology Chemistry Pharmacology, Toxicology and Pharmaceutics
Online Access:	https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=61349160485&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59381
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Institution:	Chiang Mai University

id	th-cmuir.6653943832-59381
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spelling	th-cmuir.6653943832-593812018-09-10T03:24:00Z Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits Nantanit Wanichacheva Monchai Siriprumpoonthum Anyanee Kamkaew Kate Grudpan Biochemistry, Genetics and Molecular Biology Chemistry Pharmacology, Toxicology and Pharmaceutics A novel macromolecule based on 2-[3-(2-aminoethylthio)propylthio]ethanamine covalently bound to two 7-nitrobenzo-2-oxa-1,3-diazolyl moieties was prepared as a fluoroionophore and a chromophore for the selective optical detection of Hg2+. The sensor was prepared in two steps and its fluoroionophoric and chromophoric properties toward various transition metal, alkali, and alkali earth cations were investigated. Compound 4 selectively binds Hg2+, and the binding is indicated by both fluorescence quenching and a chromogenic change which can be detected by the naked eye. In an 80:20 acetonitrile/water solvent mixture, 4 acts as an ON-OFF fluorescence switch upon Hg2+binding, exhibiting efficient quenching and a detection limit of 10-7M or 20 ppb. © 2009 Elsevier Ltd. All rights reserved. 2018-09-10T03:14:33Z 2018-09-10T03:14:33Z 2009-04-22 Journal 00404039 2-s2.0-61349160485 10.1016/j.tetlet.2009.01.118 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=61349160485&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59381
institution	Chiang Mai University
building	Chiang Mai University Library
country	Thailand
collection	CMU Intellectual Repository
topic	Biochemistry, Genetics and Molecular Biology Chemistry Pharmacology, Toxicology and Pharmaceutics
spellingShingle	Biochemistry, Genetics and Molecular Biology Chemistry Pharmacology, Toxicology and Pharmaceutics Nantanit Wanichacheva Monchai Siriprumpoonthum Anyanee Kamkaew Kate Grudpan Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
description	A novel macromolecule based on 2-[3-(2-aminoethylthio)propylthio]ethanamine covalently bound to two 7-nitrobenzo-2-oxa-1,3-diazolyl moieties was prepared as a fluoroionophore and a chromophore for the selective optical detection of Hg2+. The sensor was prepared in two steps and its fluoroionophoric and chromophoric properties toward various transition metal, alkali, and alkali earth cations were investigated. Compound 4 selectively binds Hg2+, and the binding is indicated by both fluorescence quenching and a chromogenic change which can be detected by the naked eye. In an 80:20 acetonitrile/water solvent mixture, 4 acts as an ON-OFF fluorescence switch upon Hg2+binding, exhibiting efficient quenching and a detection limit of 10-7M or 20 ppb. © 2009 Elsevier Ltd. All rights reserved.
format	Journal
author	Nantanit Wanichacheva Monchai Siriprumpoonthum Anyanee Kamkaew Kate Grudpan
author_facet	Nantanit Wanichacheva Monchai Siriprumpoonthum Anyanee Kamkaew Kate Grudpan
author_sort	Nantanit Wanichacheva
title	Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
title_short	Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
title_full	Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
title_fullStr	Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
title_full_unstemmed	Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
title_sort	dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits
publishDate	2018
url	https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=61349160485&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59381
_version_	1681425240727486464

Dual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunits

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