Zinc-supported azobenzene derivative-based colorimetric fluorescent 'turn-on' sensing of bovine serum albumin

Fluorescence sensing with small molecular chemosensors is a versatile technique for elucidation of function of various substances. Herein, a new zinc ion supported fluorescent turn-on system for bovine serum albumin (BSA) has been demonstrated. The fluorescence intensity increases 15.4-fold and visual color changes from light reddish orange to yellow can be detected after adding BSA.