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Electrochemical Modulation of Fluorophore Emission on a Nanostructured Gold Film

Suppressing the charge‐transfer quenching with an externally applied electrochemical bias results in a fluorescence enhancement of a fluorophore (pyrene) on a gold nanoparticle surface (see scheme). At positive bias the fluorophore is totally quenched on the gold surface while at negative bias (less...

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Published in:	Angewandte Chemie International Edition 2002-08, Vol.41 (15), p.2764-2767
Main Authors:	Kamat, Prashant V., Barazzouk, Said, Hotchandani, Surat
Format:	Article
Language:	English
Subjects:	Electrochemistry - methods Electrodes fluorescence Fluorescent Dyes - chemistry Gold gold nanoparticles nanostructures Nanotechnology organic-inorganic hybrid composites Oxidation-Reduction Pyrenes - chemistry spectroelectrochemistry Spectrum Analysis Sulfhydryl Compounds - chemistry
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container_title	Angewandte Chemie International Edition
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creator	Kamat, Prashant V. Barazzouk, Said Hotchandani, Surat
description	Suppressing the charge‐transfer quenching with an externally applied electrochemical bias results in a fluorescence enhancement of a fluorophore (pyrene) on a gold nanoparticle surface (see scheme). At positive bias the fluorophore is totally quenched on the gold surface while at negative bias (less than −0.5 V) it becomes highly fluorescent.
doi_str_mv	10.1002/1521-3773(20020802)41:15<2764::AID-ANIE2764>3.0.CO;2-E
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subjects	Electrochemistry - methods Electrodes fluorescence Fluorescent Dyes - chemistry Gold gold nanoparticles nanostructures Nanotechnology organic-inorganic hybrid composites Oxidation-Reduction Pyrenes - chemistry spectroelectrochemistry Spectrum Analysis Sulfhydryl Compounds - chemistry
title	Electrochemical Modulation of Fluorophore Emission on a Nanostructured Gold Film
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