Fluorescence enhancement of acridine orange in a water solution by Au nanoparticles

被引：0
|
作者：
HaiRong Zheng
LiangMin Xu
ZhengLong Zhang
Jun Dong
ShuTang Chen
XiaoLing Zhang
机构：
[1] Shaanxi Normal University,College of Physics and Information Technology
[2] Beijing Institute of Technology,Department of Chemistry, School of Science
来源：
Science China Physics, Mechanics and Astronomy | 2010年 / 53卷
关键词：
surface enhanced fluorescence; local field enhancement; acridine orange; hydrophilic Au nanoparticle;
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中图分类号：
学科分类号：
摘要：
The surface enhanced fluorescence effect of acridine orange fluorophore in the proximity of Au nanoparticles has been investigated experimentally in the system of aqueous solution. Significant enhancement of the fluorescence intensity was observed when the system was excited with 532 nm or 442 nm CW lasers. The influence of the distances between neighboring Au particles as well as that between the fluorophore molecules and the Au surface were explored experimentally. The results demonstrated that a compact distribution of metallic particles was able to produce stronger fluorescence enhancement. Proper separation between the fluorophore molecules and the metal surface was favorable for a better enhancement.
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页码：1799 / 1804
页数：5
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