title: Chemodosimetric Hg2+-selective signaling by mercuration of dichlorofluorescein derivatives.
abstract: The chemodosimetric behavior of dichlorofluorescein derivatives toward Hg(2+) ions was investigated. Simple chemodosimetric systems showed selective and efficient signaling behaviors toward micromolar concentrations of Hg(2+) ions over other common interfering metal ions in an aqueous environment. The signaling mechanism is selective mercuration of the 4',5'-position of the xanthene moiety, which results in efficient chromogenic and fluorogenic signaling of Hg(2+) ions in aqueous environment.
authors.affiliation: Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
authors.forename: Myung Gil
authors.initials: MG
authors.lastname: Choi
authors.forename: De Hun
authors.initials: DH
authors.lastname: Ryu
authors.forename: Hye Lim
authors.initials: HL
authors.lastname: Jeon
authors.forename: Sunyoung
authors.initials: S
authors.lastname: Cha
authors.forename: Janggeun
authors.initials: J
authors.lastname: Cho
authors.forename: Hyun Hye
authors.initials: HH
authors.lastname: Joo
authors.forename: Kwan Soo
authors.initials: KS
authors.lastname: Hong
authors.forename: Chulhyun
authors.initials: C
authors.lastname: Lee
authors.forename: Sangdoo
authors.initials: S
authors.lastname: Ahn
authors.forename: Suk-Kyu
authors.initials: SK
authors.lastname: Chang
mesh_terms: D002413:Cations, Divalent / Q000737:chemistry; D005452:Fluoresceins / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008628:Mercury / Q000032:analysis / Q000737:chemistry*; D012680:Sensitivity and Specificity; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D014867:Water / Q000737:chemistry
chemical_list: D002413:Cations, Divalent; D005452:Fluoresceins; D005456:Fluorescent Dyes; D012996:Solutions; D014867:Water; C037631:2',7'-dichlorofluorescein; D008628:Mercury