title: Rapid, selective, and sensitive fluorometric detection of cyanide anions in aqueous media by cyanine dyes with indolium-coumarin linkages.
abstract: Cyanine dyes with indolium-coumarin linkages exhibit selective fluorescence enhancement for cyanide anions (CN(-)) via the nucleophilic interaction of CN(-) with their indolium carbon atoms. This facilitates rapid (detection time: 1 min) and sensitive (detection limit: 0.4 μM) sensing of CN(-) in aqueous media.
authors.affiliation: Research Center for Solar Energy Chemistry, and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan. shiraish@cheng.es.osaka-u.ac.jp.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Shiraishi
authors.forename: Masaya
authors.initials: M
authors.lastname: Nakamura
authors.forename: Kohei
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Takayuki
authors.initials: T
authors.lastname: Hirai
mesh_terms: D000838:Anions / Q000737:chemistry; D002232:Carbocyanines / Q000737:chemistry*; D003374:Coumarins / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry; D007211:Indoles / Q000737:chemistry*; D009570:Nitriles / Q000032:analysis*; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D014867:Water / Q000737:chemistry
chemical_list: D000838:Anions; D002232:Carbocyanines; D003374:Coumarins; D005456:Fluorescent Dyes; D007211:Indoles; D009570:Nitriles; D014867:Water; C057812:indoline; C030123:coumarin