title: Sulfide-selective chemosignaling by a Cu2+ complex of dipicolylamine appended fluorescein.
abstract: A new sulfide-selective chemosignaling system was devised based on a Cu(2+) complex of fluorescein derivative having a dipicolylamine (DPA) binding site; the fluorescein-DPA conjugate 1, in the presence of Cu(2+) ions, revealed a selective turn-on type signaling behavior toward sulfide ions with a detection limit of 420 nM in 100% aqueous solution.
authors.affiliation: Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
authors.forename: Myung Gil
authors.initials: MG
authors.lastname: Choi
authors.forename: Sunyoung
authors.initials: S
authors.lastname: Cha
authors.forename: Haekyung
authors.initials: H
authors.lastname: Lee
authors.forename: Hye Lim
authors.initials: HL
authors.lastname: Jeon
authors.forename: Suk-Kyu
authors.initials: SK
authors.lastname: Chang