Plasmonic Optical Tweezers toward Molecular Manipulation: Tailoring Plasmonic Nanostructure, Light Source, and Resonant Trapping
Plasmonic Optical Tweezers toward Molecular Manipulation: Tailoring Plasmonic Nanostructure, Light Source, and Resonant Trapping
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DOI：
10.1021/jz501231h
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发表时间：
2014-09-04
影响因子：
5.7
通讯作者：
Tsuboi, Yasuyuki
中科院分区：
文献类型：
--
作者：
Shoji, Tatsuya;Tsuboi, Yasuyuki
这一视角描述了基于局域表面等离子激元的纳米颗粒光学捕获的最新进展。这种等离子体光捕获技术与传统的光钳相比具有很大的优势，在分子操纵技术中具有潜在的应用前景。我们从(I)等离子体纳米结构、(Ii)等离子体激元激发光源和(Iii)俘获靶的极化率的角度对这一新的俘获技术进行了综述。这些发现给我们提供了等离子体光学捕获的未来前景。除了简要综述外，还将讨论蛋白质、高分子链和DNA等软纳米材料的等离子体光学捕获的最新进展，以指出这种捕获方法进一步发展的重要问题。最后，我们探索了等离子体光陷的新方向。
This Perspective describes recent progress in optical trappings of nanoparticles based on localized surface plasmon. This plasmonic optical trapping has great advantages over the conventional optical tweezers, being potentially applicable for a molecular manipulation technique. We review this novel trapping technique from the viewpoints of (i) plasmonic nanostructure, (ii) the light source for plasmon excitation, and (iii) the polarizability of the trapping target. These findings give us future outlook for plasmonic optical trapping. In addition to a brief review, recent developments on plasmonic optical trapping of soft nanomaterials such as proteins, polymer chains, and DNA will be discussed to point out the important issue for further development on this trapping method. Finally, we explore new directions of plasmonic optical trapping.