Center for Research in Energy and Environment, Missouri University of Science and Technology, Rolla, MO, 65409, USA.
Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, MO, 65409, USA.
Chemistry. 2017 Oct 12;23(57):14177-14181. doi: 10.1002/chem.201703927. Epub 2017 Sep 13.
Fabrication of plasmonic metamolecules (PMs) with rationally designed complexity is one of the major goals of nanotechnology. Most self-assembled PMs, however, have been constructed using single-component systems. The corresponding plasmonic assemblies still suffer from the lack of complexity, which is required to achieve a high degree of functionality. Here, we report a general applicable strategy that can realize a series of high-ordered hetero-PMs using bottom-up DNA self-assembly. DNA-functionalized differently shaped nanoparticles were deliberately arranged in prescribed positions on 3D triangular DNA origami frames to form various hetero-PMs. Importantly, we showed that the optical properties of assembled PMs could be facially tuned by selectively regulating the position of each component. This method provides a promising pathway for manufacturing more complex and advanced materials by integrating diverse nanocomponents with particular properties.
具有合理设计复杂性的等离子体超材料（PMs）的制造是纳米技术的主要目标之一。然而，大多数自组装的 PMs 都是使用单一组分系统构建的。相应的等离子体组装体仍然缺乏复杂性，这是实现高度功能所必需的。在这里，我们报告了一种通用的策略，可以使用自下而上的 DNA 自组装实现一系列高阶异质 PMs。在 3D 三角 DNA 折纸框架上，经过功能化的不同形状的纳米颗粒被故意布置在预定位置上，以形成各种异质 PMs。重要的是，我们表明通过有选择地调节每个组件的位置，可以对面地调节组装 PMs 的光学性质。该方法通过将具有特定性质的各种纳米组件集成在一起，为制造更复杂和先进的材料提供了有前景的途径。
