A novel polynorbornene-based chemosensor for the fluorescence sensing of Zn2+ and Cd2+ and subsequent detection of pyrophosphate in aqueous solutions†
Abstract
A hydroxyquinoline functionlized polynorbornene (P1) was designed and synthesized. In an aqueous solution, P1 shows a “turn-on” fluorescence response for Zn2+ and Cd2+ with a 50 nm blue shift. Furthermore, both P1-Zn2+ and P1-Cd2+ complexes were found to respond to pyrophosphate (PPi) over other important biological anions via a fluorescence quenching effect. P1 is also capable of monitoring intracellular Zn2+ and PPi in real time.