Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, No. 2 ZhongGuanCun BeiYiJie, Beijing 100190, China.
CAS Center for Excellence in Nanoscience, Division of Nanophotonic, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing 100190, China.
Nat Commun. 2017 Jun 6;8:15727. doi: 10.1038/ncomms15727.
Transfer of both chirality and energy information plays an important role in biological systems. Here we show a chiral donor π-gelator and assembled it with an achiral π-acceptor to see how chirality and energy can be transferred in a composite donor-acceptor system. It is found that the individual chiral gelator can self-assemble into nanohelix. In the presence of the achiral acceptor, the self-assembly can also proceed and lead to the formation of the composite nanohelix. In the composite nanohelix, an energy transfer is realized. Interestingly, in the composite nanohelix, the achiral acceptor can both capture the supramolecular chirality and collect the circularly polarized energy from the chiral donor, showing both supramolecular chirality and energy transfer amplified circularly polarized luminescence (ETACPL).
手性和能量信息的传递在生物系统中起着重要作用。在这里，我们展示了一种手性给体π-凝胶剂，并将其与非手性π-受体组装在一起，以观察手性和能量如何在复合给体-受体系统中传递。结果发现，单个手性凝胶剂可以自组装成纳米螺旋。在非手性受体存在的情况下，自组装也可以进行，并导致复合纳米螺旋的形成。在复合纳米螺旋中，实现了能量转移。有趣的是，在复合纳米螺旋中，非手性受体既可以捕获超分子手性，又可以从手性给体收集圆偏振能量，表现出超分子手性和能量转移放大圆偏振发光（ETACPL）。
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