Progress in the synthesis and application of benzimidazole-based fluorescent chemosensors

Abstract

Many benzimidazole compounds can emit characteristic fluorescence in various organic solvents and aqueous solutions, and their fluorescence properties can be influenced by some factors under certain conditions, which make them used in the field of fluorescence detection. Recently, more and more attention has been attached to the benzimidazole-based fluorescent chemosensors. Their synthesis and the extensive application in the detection of metal ions, anions, inorganic small molecules, metal oxide nanoparticles, organic small molecules, and so on are reviewed. The development trend of benzimidazole- based fluorescent chemosensors is prospected.