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dc.contributor.authorNantanit Wanichachevaen_US
dc.contributor.authorMonchai Siriprumpoonthumen_US
dc.contributor.authorAnyanee Kamkaewen_US
dc.contributor.authorKate Grudpanen_US
dc.date.accessioned2018-09-10T03:14:33Z-
dc.date.available2018-09-10T03:14:33Z-
dc.date.issued2009-04-22en_US
dc.identifier.issn00404039en_US
dc.identifier.other2-s2.0-61349160485en_US
dc.identifier.other10.1016/j.tetlet.2009.01.118en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=61349160485&origin=inwarden_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/59381-
dc.description.abstractA 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.en_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectChemistryen_US
dc.subjectPharmacology, Toxicology and Pharmaceuticsen_US
dc.titleDual optical detection of a novel selective mercury sensor based on 7-nitrobenzo-2-oxa-1,3-diazolyl subunitsen_US
dc.typeJournalen_US
article.title.sourcetitleTetrahedron Lettersen_US
article.volume50en_US
article.stream.affiliationsSilpakorn Universityen_US
article.stream.affiliationsChiang Mai Universityen_US
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