Recent Research Progress of Benzothiazole Derivative Based Fluorescent Probes for Reactive Oxygen (H₂O₂ HClO) and Sulfide (H₂S) Recognition

Fluorescent sensing technology has advantages such as high sensitivity, good selectivity, and easy operation. It is widely used in the environment and biomedical field and receives increasing attention from people. It is easy to modify the structure of the benzothiazole fluorophores, and adding the push–pull electronic system can regulate the optical properties of benzodiapylene molecules. As probes, its derivatives are widely used in biomedicine, catalysis, and materials. Therefore, this paper mainly describes the development in the detection of reactivated oxygen (H₂O₂ HClO) and sulfides (H₂S) in the last six years (2019–2024) based on benzothiazole fluorescent probe, which will be classified according to the identification mechanism of probes to be summarized, and to explain their properties and applications in biological and food, providing some help for designing more sensitive and efficient fluorescent probe molecules.