DNA nanotechnology for nanophotonic applications.
DNA nanotechnology for nanophotonic applications.
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DOI：
10.1039/c4nr06283c
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发表时间：
2015-01
期刊：
影响因子：
6.7
通讯作者：
Anirban Samanta;Saswata Banerjee;Yan Liu
中科院分区：
文献类型：
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作者：
Anirban Samanta;Saswata Banerjee;Yan Liu
DNA纳米技术通过将各种纳米尺寸的颗粒与纳米精度相结合，触及了微型化的缩影。这种诱人的自下而上的方法使用了小的DNA瓷砖、大的多维聚合物结构或最近的DNA折纸来将不同无机材料、小有机分子或蛋白质等大生物分子的纳米颗粒以及RNA组织成其他传统方法难以实现的迷人图案。在这里，我们特别感兴趣的是纳米材料的自组装，这些材料是新兴的纳米光子学领域中潜在的有吸引力的元素。这些材料包括等离子纳米粒子、量子点、荧光有机染料等。基于DNA的自组装允许对这些纳米元素的距离、取向和化学计量进行出色的控制，这有助于设计智能系统，可能为未来的技术铺平道路。人们已经制作了许多能够微调光学性质的优秀结构，如荧光强度和寿命调制、增强拉曼散射和出现圆二向色性响应。在本次审查的有限范围内，我们试图了解这一仍处于萌芽状态但极有希望的领域的发展现状以及摆在我们面前的现有挑战。
DNA nanotechnology has touched the epitome of miniaturization by integrating various nanometer size particles with nanometer precision. This enticing bottom-up approach has employed small DNA tiles, large multi-dimensional polymeric structures or more recently DNA origami to organize nanoparticles of different inorganic materials, small organic molecules or macro-biomolecules like proteins, and RNAs into fascinating patterns that are difficult to achieve by other conventional methods. Here, we are especially interested in the self-assembly of nanomaterials that are potentially attractive elements in the burgeoning field of nanophotonics. These materials include plasmonic nanoparticles, quantum dots, fluorescent organic dyes, etc. DNA based self-assembly allows excellent control over distance, orientation and stoichiometry of these nano-elements that helps to engineer intelligent systems that can potentially pave the path for future technology. Many outstanding structures have been fabricated that are capable of fine tuning optical properties, such as fluorescence intensity and lifetime modulation, enhancement of Raman scattering and emergence of circular dichroism responses. Within the limited scope of this review we have tried to give a glimpse of the development of this still nascent but highly promising field to its current status as well as the existing challenges before us.