Metal-enhanced chemiluminescence: Radiating plasmons generated from chemically induced electronic excited states

被引：58
|
作者：
Chowdhury, MH
Aslan, K
Malyn, SN
Lakowicz, JR
Geddes, CD
机构：
[1] Univ Maryland, Sch Med, Med Biotechnol Ctr, Ctr Fluorescence Spect, Baltimore, MD 21201 USA
[2] Univ Maryland, Biotechnol Inst, Med Biotechnol Ctr, Lab Adv Med Plasmon,Inst Fluorescence, Baltimore, MD 21201 USA
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 17期
关键词：
D O I：
10.1063/1.2195776
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this letter, we report the observation of metal-enhanced chemiluminescence. Silver Island films, in close proximity to chemiluminescence species, can significantly enhance luminescence intensities; a 20-fold increase in chemiluminescence intensity was observed as compared to an identical control sample containing no silver. This suggests the use of silver nanostructures in the chemiluminescence-based immunoassays used in the biosciences today, to improve signal and therefore analyte detectability. In addition, this finding suggests that surface plasmons can be directly excited by chemically induced electronically excited luminophores, a significant finding toward our understanding of fluorophore-metal interactions and the generation of surface plasmons. (c) 2006 American Institute of Physics.
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