title: Fluorescence lifetime-based sensing of sodium by an optode.
abstract: We report a 1,2,3-triazol fluoroionophore for detecting Na(+) that shows in vitro enhancement in the Na(+)-induced fluorescence intensity and decay time. The Na(+)-selective molecule 1 was incorporated into a hydrogel as a part of a fiber optical sensor. This sensor allows the direct determination of Na(+) in the range of 1-10 mM by measuring reversible fluorescence decay time changes.
authors.affiliation: University of Potsdam, Inorganic Chemistry, Karl-Liebknecht-Straße 24-25, 14476 Golm, Germany. holdt@uni-potsdam.de.
authors.forename: Thomas
authors.initials: T
authors.lastname: Schwarze
authors.forename: Holger
authors.initials: H
authors.lastname: Müller
authors.forename: Sandra
authors.initials: S
authors.lastname: Ast
authors.forename: Dörte
authors.initials: D
authors.lastname: Steinbrück
authors.forename: Sascha
authors.initials: S
authors.lastname: Eidner
authors.forename: Felix
authors.initials: F
authors.lastname: Geissler
authors.forename: Michael U
authors.initials: MU
authors.lastname: Kumke
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Holdt
mesh_terms: D005453:Fluorescence; D015394:Molecular Structure; D012964:Sodium / Q000032:analysis*; D014230:Triazoles / Q000737:chemistry*
chemical_list: D014230:Triazoles; D012964:Sodium