A Simple Fluorescent Probe for Biothiol Detection and Its Application Based on a Phthalimide Derivative
A novel fluorescent probe PSH was developed for the specific detection of biothiols, using phthalimide as the fluorophore and the 2,4‐dinitrobenzenesulfonyl (DNBS) group as the recognition moiety. The DNBS group causes fluorescence quenching of PSH , while biothiols trigger a nucleophilic substitution reaction...