Fluorescence Enhancement of Nanoraspberry Hot-spot Source Composed of Gold Nanoparticles and Aniline Oligomers
Fluorescence Enhancement of Nanoraspberry Hot-spot Source Composed of Gold Nanoparticles and Aniline Oligomers
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DOI：
10.2116/analsci.31.487
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发表时间：
2015-06-01
影响因子：
1.6
通讯作者：
Nagaoka, Tsutomu
中科院分区：
文献类型：
--
作者：
Kinoshita, Takamasa;Dung Quang Nguyen;Nagaoka, Tsutomu
在这项研究中，我们研究了树莓形的有机/无机混合结构的潜在发展的纳米天线系统能够检测和标记生物分子。该结构的特征在于高密度的金纳米颗粒（AuNPs），其被紧密堆积的苯胺低聚物分隔开，所述苯胺低聚物充当相邻颗粒之间的连接。特别是，该结构是基于AuNP-苯胺低聚物-AuNP在三维排列中的重复序列，这使得能够产生可以容纳多个分子的光学热点。我们研究这些功能的表达，通过专注于混合的结构和特点。我们证明了这些光学热点增强了染料荧光而没有淬灭。因此，我们能够创建一个纳米天线结构，使光的有效利用。
In this study, we examined raspberry-shaped organic/inorganic hybrid structure for potential development of a nanoantenna system capable of detecting and labeling biomolecules. The structure is characterized by a high density of gold nanoparticles (AuNPs) separated by closely packed aniline oligomers that serve as a linkage between adjacent particles. In particular, the structure was based on repeated sequences of AuNP-aniline oligomer-AuNP in a three-dimensional arrangement, which enabled the creation of optical hot spots that can hold multiple molecules. We examine the expression of such features by focusing on the structure and characteristics of the hybrid. We demonstrate that these optical hot spots enhance the dye fluorescence without quenching. As a result, we were able to create a nanoantenna structure enabling the efficient use of light.