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Chem Phys Lett. 2007 Feb 12;435(1):114-118. doi: 10.1016/j.cplett.2006.12.063.

First Observation of Surface Plasmon-Coupled Chemiluminescence (SPCC).

Chemical physics letters

Mustafa H Chowdhury, Stuart N Malyn, Kadir Aslan, Joseph R Lakowicz, Chris D Geddes

Affiliations

  1. Center for Fluorescence Spectroscopy, Medical Biotechnology Center, University of Maryland School of Medicine, 725 West Lombard St, Baltimore, MD, 21201.

PMID: 18268785 PMCID: PMC2000841 DOI: 10.1016/j.cplett.2006.12.063

Abstract

In this letter, we report the first observation of surface plasmon-coupled chemiluminescence (SPCC), where the luminescence from chemically induced electronic excited states couples to surface plasmons in a thin continuous silver film. The SPCC is highly directional and predominantly p-polarized, strongly suggesting that the emission is from surface plasmons instead of the luminophores directly themselves. This indicates that surface plasmons can be directly excited from chemically induced excited states. With a wealth of assays that employ chemiluminescence based detection currently in use, then our findings suggest new chemiluminescence sensing strategies based on localized, directional and polarized chemiluminescence detection.

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