Dong Lei, Peng Hui-Qing, Niu Li-Ya, Yang Qing-Zheng
Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China.
Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
Top Curr Chem (Cham). 2021 Apr 7;379(3):18. doi: 10.1007/s41061-021-00330-0.
Excitation energy transfer (EET) as a fundamental photophysical process is well-explored for developing functional materials with tunable photophysical properties. Compared to traditional fluorophores, aggregation-induced emission luminogens (AIEgens) exhibit unique advantages for building EET systems, especially serving as energy donors, due to their outstanding photophysical properties such as bright fluorescence in aggregation state, broad absorption and emission spectra, large Stokes shift, and high photobleaching resistance. In addition, the photophysical properties of AIEgens can be modulated by energy transfer for improved luminescence performance. Therefore, a variety of EET systems based on AIEgens have been constructed and their applications in different areas have been explored. In this review, we summarize recent progress in the design strategy of AIE-based energy transfer systems for light-harvesting, fluorescent probes and theranostic systems, with an emphasis on design strategies to achieve desirable properties. The limitations, challenges and future opportunities of AIE-EET systems are briefly outlined. Design strategies and applications (light-harvesting, fluorescent probe and theranostics) of AIEgen-based excitation energy systems are discussed in this review.
作为一种基本的光物理过程，激发能量转移（EET）在开发具有可调光物理性质的功能材料方面已得到了充分研究。与传统荧光团相比，聚集诱导发光发光体（AIEgens）在构建EET系统方面具有独特优势，特别是作为能量供体，这得益于其出色的光物理性质，如聚集态下的明亮荧光、宽吸收和发射光谱、大斯托克斯位移以及高光稳定性。此外，AIEgens的光物理性质可通过能量转移进行调控，以提高发光性能。因此，基于AIEgens构建了各种EET系统，并探索了它们在不同领域的应用。在本综述中，我们总结了基于AIE的能量转移系统在光捕获、荧光探针和诊疗系统设计策略方面的最新进展，重点关注实现理想性能的设计策略。简要概述了AIE-EET系统的局限性、挑战和未来机遇。本综述讨论了基于AIEgen的激发能量系统的设计策略和应用（光捕获、荧光探针和诊疗学）。
