通过将重原子效应应用于热激活延迟荧光材料来实现高效单重态氧生成。
Achieving high singlet-oxygen generation by applying the heavy-atom effect to thermally activated delayed fluorescent materials.
机构信息
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Hong Kong, 999077, P. R. China.
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China.
出版信息
Chem Commun (Camb). 2021 May 18;57(40):4902-4905. doi: 10.1039/d0cc08323b.
A bromine-substituted thermally activated delayed fluorescent (TADF) molecule AQCzBr2 is designed with both small singlet-triplet splitting (ΔEST) and increased spin-orbit coupling (SOC) to boost intersystem crossing (ISC) for singlet oxygen generation. AQCzBr2 nanoparticles (NPs) demonstrate high productivity of singlet oxygen generation (ΦΔ = 0.91) which allows highly efficient photodynamic therapy toward cancer cells.
设计了一种溴取代的热激活延迟荧光（TADF）分子 AQCzBr2，它具有较小的单重态-三重态分裂（ΔEST）和增强的自旋轨道耦合（SOC），以促进单线态氧生成的系间窜越（ISC）。AQCzBr2 纳米粒子（NPs）表现出高的单线态氧生成效率（ΦΔ = 0.91），这使得其对癌细胞的光动力治疗非常有效。
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