Application of aggregation-induced emission materials in gastrointestinal diseases

Figure 1 Aggregation-induced emission luminogens (AIEgens) overcomes the aggregation-caused fluorescence quenching effect, enhancing luminescence efficiency at high concentrations. Upon light exposure, they generate reactive oxygen species through a series of reaction processes. A: The common fluorescent dye fluorescein exhibits fluorescence quenching in the aggregated state, while the classic aggregation-induced emission (AIE) molecule tetraphenylethylene overcomes the aggregation-caused fluorescence quenching effect and shows enhanced fluorescence at high concentrations; B: AIEgens generate various reactive oxygen species upon light irradiation. AIEgens: Aggregation-induced emission luminogens; AuNPs: Gold nanoparticles; TPE: Tetraphenylethylene; ACQ: Aggregation-induced fluorescence quenching. Created in Figdraw, and the compound structures were drawn using KingDraw.