Fluorescence Enhancement of Nanoraspberry Hot-spot Source Composed of Gold Nanoparticles and Aniline Oligomers

被引：0
作者：
Takamasa Kinoshita
Dung Quang Nguyen
Tomoaki Nishino
Hidenobu Nakao
Hiroshi Shiigi
Tsutomu Nagaoka
机构：
[1] Osaka Prefecture University,Department of Applied Chemistry
[2] National Institute for Materials Science,undefined
来源：
Analytical Sciences | 2015年 / 31卷
关键词：
Gold nanoparticles; fluorescence enhancement; hot-spot;
D O I：
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学科分类号：
摘要：
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.
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页码：487 / 493
页数：6
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