Luo Yang, Zhang Wei, Ren Qian, Tao Zhu, Xiao Xin
State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China.
ACS Appl Mater Interfaces. 2022 Jul 6;14(26):29806-29812. doi: 10.1021/acsami.2c05599. Epub 2022 Jun 24.
Relying on the supramolecular self-assembly of twisted cucurbit[14]urils (Q[14]), anthracene derivatives (ADPy), Nile red (NiR), and rhodamine B (RB), highly efficient light-harvesting systems have been successfully designed in an aqueous medium. The addition of Q[14] causes ADPy to aggregate through supramolecular self-assembly to form a supramolecular polymer (ADPy@Q[14]) with excellent aggregation-induced fluorescence and an interesting spherical external morphology, making it a remarkable energy donor. Consequently, efficient energy-transfer processes have occurred between ADPy@Q[14] assembly and NiR and RB, which both serve as effective energy acceptors while being loaded onto ADPy@Q[14]. In the case of NiR, the energy-transfer efficiency is up to 72.45%, and the antenna effect is near 55.4 at a donor/acceptor ratio of 100:1, making it close to the light-harvesting systems in nature. As a result, effective water-soluble artificial light-harvesting systems are showing enormous prospective as versatile platforms for simulating photosynthesis.
依靠扭曲的葫芦[14]脲（Q[14]）、蒽衍生物（ADPy）、尼罗红（NiR）和罗丹明B（RB）的超分子自组装，在水介质中成功设计了高效的光捕获系统。Q[14]的加入使ADPy通过超分子自组装聚集形成具有优异聚集诱导荧光和有趣球形外部形态的超分子聚合物（ADPy@Q[14]），使其成为出色的能量供体。因此，在ADPy@Q[14]组装体与NiR和RB之间发生了高效的能量转移过程，NiR和RB在负载到ADPy@Q[14]上时均作为有效的能量受体。对于NiR，在供体/受体比例为100:1时，能量转移效率高达72.45%，天线效应接近55.4，使其接近自然界中的光捕获系统。结果，有效的水溶性人工光捕获系统作为模拟光合作用的通用平台显示出巨大的前景。
