Department of Chemical Engineering, Monash University, Clayton, Victoria, Australia.
Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2012 Nov-Dec;4(6):587-604. doi: 10.1002/wnan.1184. Epub 2012 Jul 24.
Plasmonic nanoarchitectures refer to the well-defined groupings of elementary metallic nanoparticle building blocks. Such nanostructures have a plethora of technical applications in diagnostics, energy-harvesting, and nanophotonic circuits, to name a few. Nevertheless, it remains challenging to construct plasmonic nanoarchitectures at will inexpensively. Bottom-up self-assembly is promising to overcome these limitations, but such methods often produce defects and low-yields. For these purposes, DNA has emerged as a powerful nanomaterial beyond its genetic function in biology to either program or template synthesis of plasmonic nanostructures, or act as a ligand to mediate large-area self-assembly. In conjunction with top-down lithography, DNA-based strategies can afford excellent control over internal and overall structures of plasmonic nanoarchitectures. In this review, we outline the representative methodologies for building various well-defined plasmonic nanoarchitectures and cover their recent exciting applications.
等离子体纳米结构是指经过精确设计的金属纳米粒子结构单元的组合。这些纳米结构在诊断学、能量收集和纳米光子电路等多个领域都有广泛的技术应用。然而，仍然难以廉价地随意构建等离子体纳米结构。自下而上的自组装具有克服这些限制的潜力，但这种方法通常会产生缺陷和低产量。为此，DNA 已经超越其在生物学中的遗传功能，成为一种强大的纳米材料，用于编程或模板合成等离子体纳米结构，或作为配体来介导大面积自组装。与自上而下的光刻相结合，基于 DNA 的策略可以对等离子体纳米结构的内部和整体结构进行出色的控制。在这篇综述中，我们概述了构建各种定义明确的等离子体纳米结构的代表性方法，并介绍了它们最近令人兴奋的应用。
