Boosting Non‐Radiative Decay to Do Useful Work: Development of a Multi‐Modality Theranostic System from an AIEgen
作者:Dong Wang、Michelle M. S. Lee、Wenhan Xu、Guogang Shan、Xiaoyan Zheng、Ryan T. K. Kwok、Jacky W. Y. Lam、Xianglong Hu、Ben Zhong Tang
DOI:10.1002/anie.201900366
日期:2019.4.16
non‐radiative excited‐state decay of fluorophores was only rarely reported. Herein, we demonstrate how to boost the energy generation of non‐radiative decay and use it for cancer theranostics. A novel compound (TFM) was synthesized which possesses a rotor‐like twisted structure, strong absorption in the far red/near‐infrared region, and it shows aggregation‐induced emission (AIE). Molecular dynamics simulations
仅很少报道了荧光团的非辐射激发态衰变所耗散的能量的有效利用。本文中,我们演示了如何增加非辐射衰变的能量生成并将其用于癌症治疗学。合成了一种新型化合物(TFM),该化合物具有类似转子的扭曲结构,在远红/近红外区域具有很强的吸收能力,并且显示出聚集诱导发射(AIE)。分子动力学模拟表明,TFM聚集体为无定形形式,由处于松散堆积状态的无序分子组成,这允许有效的分子内运动,并因此提高了热失活途径的能量耗散。这些固有功能使TFM纳米颗粒(NP)能够显示出高的光热转换效率(51.2%),出色的光声(PA)效果,以及有效的活性氧(ROS)生成。体内评估表明,TFM NPs是PA成像引导光疗的极佳候选者。