Xiao Cui, Fang Fang, Huan Chen, Chen Cao, Yafang Xiao, Shuang Tian, Jinfeng Zhang, Shengliang Li and Chun-Sing Lee
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引用次数: 0
摘要
在 I 型光敏剂中,稳定的有机自由基是克服缺氧的光动力疗法的理想候选分子。然而,复杂的制备过程和较差的稳定性限制了它们的广泛应用。在此,我们通过引入市售的 "TEMPO "分子,简单地合成了一种亚硝基自由基。该自由基在缺氧条件下具有高效的 I 型 ROS 生成能力和明显的光毒性,为探索新型高效 I 型光敏剂开辟了一条新途径。
Using a stable radical as an “electron donor” to develop a radical photosensitizer for efficient type-I photodynamic therapy†
Among type I photosensitizers, stable organic radicals are superior candidate molecules for hypoxia-overcoming photodynamic therapy. However, their wide applications are limited by complicated preparation processes and poor stabilities. Herein, a nitroxide radical was simply synthesized by introducing a commercially available “TEMPO” moiety. The radical exhibits efficient type-I ROS generation and appreciable photo-cytotoxicity under hypoxia, which open up a new avenue for the exploration of a novel and efficient type-I photosensitizer.