Fluorescence lifetime-based sensing of sodium by an optode

摘要

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.