Abstract
Small-molecule fluorescent probe with advantages of small size, low background and simple preparation have been widely used. The detection of anions by small-molecule fluorescent probes is usually achieved through one of the following reaction mechanisms: hydrogen bonds and electrostatic interactions; metal or Lewis acid coordination; covalent interaction. This article summarizes the advances in the design principles of small-molecule fluorescent probes for the detection of anions in biological and environmental media in recent years.
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