“…Unlike aggregation-caused quenching (ACQ) fluorophores, fluorogens with AIE features have a remarkable optical property and strong resistance toward photobleaching [ 33 ]. Such materials have been used in a broad range of fields, including organic optoelectronic devices, biosensing, bioimaging, photodynamic therapy and photothermal therapy [ 34 , 35 , 36 , 37 ]. By conjugating fluorogens with the target ligands, many AIE chemo/biosensors have been designed for the determination of various analytes, such as ions, small molecules, microenvironment sensing, biological macromolecules, cellular processes and pathogens [ 38 , 39 , 40 ].…”