Chirality and energy transfer amplified circularly polarized luminescence in composite nanohelix.
Chirality and energy transfer amplified circularly polarized luminescence in composite nanohelix.
复制标题
复合纳米螺旋中的手性和能量转移放大圆偏振发光
DOI：
10.1038/ncomms15727
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发表时间：
2017-06-06
影响因子：
16.6
通讯作者：
Liu M
中科院分区：
文献类型：
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作者：
Yang D;Duan P;Zhang L;Liu M
手性和能量信息的传递在生物系统中起着重要的作用。我们展示了一个手性给体π-凝胶，并将其与一个非手性π-受体组装在一起，以观察手性和能量如何在一个复合给体-受体体系中传递。发现单个手性凝胶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。在复合纳米螺旋结构中，实现了能量传递。有趣的是，在复合纳米螺旋中，非手性受体既能捕获超分子手性，又能从手性给体那里收集圆极化能量，表现出超分子手性和能量转移放大的圆极化发光（ETACPL）。能量和手性转移在生命系统中起着至关重要的作用。在这里，作者展示了非手性受体和手性供体凝胶可以以手性控制的方式组装成一个超分子纳米螺旋，可以额外收集圆极化能量。
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). Energy and chirality transfer play a crucial role in living systems. Here, the authors show that achiral acceptors and chiral donor gelators can assemble in a chirally-controlled manner into a supramolecular nanohelix that can additionally harvest circularly polarized energy.