Highly Selective Excited State Intramolecular Proton Transfer (ESIPT)-Based Superoxide Probing

Abstract

Two novel fluorescent probe conjugates of 2-(benzothiazol-2-yl)-phenol (HBT) enable ratiometric and selective superoxide detection by an established <i>excited state intramolecular proton transfer</i> (ESIPT) mechanism giving a 60-fold intensity increase