Singlet oxygen (SO) is one of the reactive oxygen species that is effective in various uses, including performing chemical reactions, treating water impurities, and aiding in medicinal therapy. The generation of SO is often efficient in solution, although generation from the solid phase in nanomaterials is less reliable. Here, we report the preparation of hybrid supramolecular materials that incorporate a photosensitizer within their nanostructured fibers and demonstrate their high efficiency in promoting SO formation. The incorporation of tetrakis(4-carboxyphenyl)porphyrin within the nanofibers of a bis-imidazolium gelator was proved by various techniques, including super-resolution radial fluctuations (SRRF) microscopy, which shows the location of the chromophore precisely. SO is generated from the dispersed nanofibers far more efficiently than the dissolved porphyrin; a 14-fold higher rate is observed initially. These results point to an effective approach to the generation of SO for several applications, from optimizing synthetic protocols to photomedicine.

单重态氧（SO）是一种可在多种用途中有效的活性氧物质，包括进行化学反应，处理水杂质和辅助药物治疗。尽管从纳米材料中的固相生成的可靠性较低，但SO的生成通常在溶液中是有效的。在这里，我们报告了混合超分子材料的制备，这些材料在其纳米结构纤维内掺入了光敏剂，并证明了它们在促进SO形成方面的高效率。通过包括超分辨径向涨落（SRRF）显微镜在内的各种技术，证明了四（4-羧基苯基）卟啉在双咪唑凝胶器纳米纤维中的掺入，可精确显示生色团的位置。分散的纳米纤维比溶解的卟啉更有效地产生SO。最初观察到高出14倍的比率。这些结果为从优化合成方案到光医学的多种应用提供了一种生成SO的有效方法。