Induction, transmission, and manipulation of chirality in molecular systems are well known, widely applied concepts. However, our understanding of how chirality of nanoscale entities can be controlled, measured, and transmitted to the environment is considerably lacking behind. Future discoveries of dynamic assemblies engineered from chiral nanomaterials, with a specific focus on shape and size effects, require exact methods to assess transmission and amplification of nanoscale chirality through space. Here we present a remarkably powerful chirality amplification approach by desymmetrization of plasmonic nanoparticles to nanorods. When bound to gold nanorods, a one order of magnitude lower number of chiral molecules induces a tighter helical distortion in the surrounding liquid crystal-a remarkable amplification of chirality through space. The change in helical distortion is consistent with a quantification of the change in overall chirality of the chiral ligand decorated nanomaterials differing in shape and size as calculated from a suitable pseudoscalar chirality indicator.

中文翻译：

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通过将手性配体封端的纳米颗粒去对称化为软凝聚态物质中量化的纳米棒来实现手性放大。

分子系统中手性的感应、传递和操纵是众所周知且广泛应用的概念。然而，我们对如何控制、测量纳米级实体的手性并将其传递到环境中的理解还远远不够。未来发现由手性纳米材料设计的动态组件，特别关注形状和尺寸效应，需要精确的方法来评估纳米级手性在空间中的传输和放大。在这里，我们提出了一种非常强大的手性放大方法，通过将等离子体纳米颗粒去对称化为纳米棒。当与金纳米棒结合时，手性分子数量减少一个数量级，会在周围的液晶中引起更紧密的螺旋扭曲——空间中手性的显着放大。螺旋畸变的变化与形状和尺寸不同的手性配体装饰的纳米材料的整体手性变化的量化一致，如根据合适的赝标量手性指标计算的。