Zhang Yifei, Han Yunxia, Yuan Shou, Liao Rui, Chen Jinquan, Wang Feng
State Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China.
State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China.
Nat Commun. 2025 Jul 1;16(1):5862. doi: 10.1038/s41467-025-61031-6.
The simultaneous transfer of chirality and energy is essential in biological systems, serving as a key inspiration for developing artificial analogs. Traditional methods, such as doping donor-acceptor chromophores into chiral gels or films, exhibit low chirality transfer efficiency due to inadequate stereo-communication. Here we present a bio-inspired strategy modeled on the chlorosomes of green bacteria. Specifically, platinated donor-acceptor chromophores form helical stacks, resembling the organization of bacteriochlorophylls in chlorosomes. Surfactant creates a confined hydrophobic environment, analogous to the role of glycolipids and phospholipids in chlorosomes, shielding the chromophores from water. This design enables energy and chirality transfer, as evidenced by femtosecond time-resolved circularly polarized luminescence spectroscopy. Further investigations reveal that amide units on the chromophores and stereochemical compatibility between donors and acceptors are critical for the dual information transfer. This study highlights the importance of a chlorosome-mimetic design in achieving simultaneous energy and chirality transfer in artificial systems.
手性和能量的同时传递在生物系统中至关重要，是开发人工类似物的关键灵感来源。传统方法，如将供体-受体发色团掺杂到手性凝胶或薄膜中，由于立体通讯不足，手性传递效率较低。在此，我们提出一种受绿细菌叶绿体启发的策略。具体而言，铂化的供体-受体发色团形成螺旋堆叠，类似于叶绿体中细菌叶绿素的组织方式。表面活性剂营造出受限的疏水环境，类似于叶绿体中糖脂和磷脂的作用，使发色团与水隔离。这种设计实现了能量和手性传递，飞秒时间分辨圆偏振发光光谱证明了这一点。进一步研究表明，发色团上的酰胺单元以及供体与受体之间的立体化学兼容性对于双重信息传递至关重要。这项研究突出了叶绿体模拟设计在人工系统中实现能量和手性同时传递的重要性。
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