A novel ratiometric and reversible fluorescent probe based on naphthalimide for the detection of Al3+ and pH with excellent selectivity

Abstract

A novel ratiometric and reversible fluorescence probe was designed and synthesized. The fluorescent probe recognizes Al³⁺ to cause a blue shift in the fluorescence emission spectrum. Fluorescence probe can be used as a sensor to detect Al³⁺ in living cells and Zebra fishes. The probe can detect the pH value when the alkalinity range was 8–10.