从原生到功能:AIE天然产物的发光、改性及应用OA

Aggregation-induced emission(AIE)has been evolved into an emerging scientific field pioneered by Chinese scientists and now attracting extensive interest worldwide,with the development of AIE study for more than twenty years.With the increasing depletion of global fossil energy,there is a growing demand for AIE materials derived from natural products and an urgent need for their efficient utilization,exemplified by the increasing attention on bioresource-based aggregation-induced emission luminogens(BioAIEgens)due to their merits of wide raw material resources,low cost,high biocompatibility and great diversity.These BioAIEgens materials have been used in study of chemosensing,bioimaging,food inspection,tumor theranostics,etc.However,most BioAIEgens still face the challenges of hard modification,low luminescence efficiency,limited functionalization,insufficient utilization,and limited application sites.In the review,the AIE mechanism behind is outlined.According to the classifications of alkaloids,flavonoids,coumarins and terpenoids,the luminescence properties and structural modifications of recently reported BioAIEgens are analyzed and summarized.And the luminescence mechanism and applications of these materials are discussed.It is hoped that this review could provide insights for the future development of novel efficient BioAIEgens.