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- Title
Combining Multiple Photosensitizer Modules into One Supramolecular System for Synergetic Enhanced Photodynamic Therapy.
- Authors
Li, Zhikai; Zhang, Zhijun; Ma, Lingzhi; Wen, Haifei; Kang, Miaomiao; Li, Danxia; Zhang, Wenjing; Luo, Siqi; Wang, Weiguo; Zhang, Mingming; Wang, Dong; Li, Haiyang; Li, Xiaopeng; Wang, Heng
- Abstract
Photodynamic therapy (PDT), as an emerging cancer treatment, requires the development of highly desirable photosensitizers (PSs) with integrated functional groups to achieve enhanced therapeutic efficacy. Coordination‐driven self‐assembly (CDSA) would provide an alternative approach for combining multiple PSs synergistically. Here, we demonstrate a simple yet powerful strategy of combining conventional chromophores (tetraphenylethylene, porphyrin, or Zn‐porphyrin) with pyridinium salt PSs together through condensation reactions, followed by CDSA to construct a series of novel metallo‐supramolecular PSs (S1–S3). The generation of reactive oxygen species (ROS) is dramatically enhanced by the direct combination of two different PSs, and further reinforced in the subsequent ensembles. Among all the ensembles, S2 with two porphyrin cores shows the highest ROS generation efficiency, specific interactions with lysosome, and strong emission for probing cells. Moreover, the cellular and living experiments confirm that S2 has excellent PDT efficacy, biocompatibility, and biosafety. As such, this study will enable the development of more efficient PSs with potential clinical applications.
- Subjects
PHOTODYNAMIC therapy; PHOTOSENSITIZERS; REACTIVE oxygen species; METALLOPORPHYRINS; CONDENSATION reactions; FUNCTIONAL groups
- Publication
Angewandte Chemie, 2024, Vol 136, Issue 11, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202400049