Journal of Fluorescence

, Volume 15, Issue 2, pp 99–104 | Cite as

Metal-Enhanced Fluorescence from Plastic Substrates

  • Kadir Aslan
  • Ramachandram Badugu
  • Joseph R. Lakowicz
  • Chris D. Geddes
Article

Abstract

We report the first findings of Metal-Enhanced Fluorescence (MEF) from modified plastic substrates. In the past several years our laboratories have reported the favorable effects of fluorophores in close proximity to silver nanoparticles. These effects include, enhanced fluorescence intensities, (increased detectability), and reduced lifetimes, (enhanced fluorophore photostability). All of these reports have featured silver nanostructures and fluorophores which have been immobilized onto clean glass or quartz surfaces. In this report we show how plastic surfaces can be modified to obtain surface functionality, which in turn allows for silver deposition and therefore metal-enhanced fluorescence of fluorophores positioned above the silver using a protein spacer. Our findings show that plastic substrates are ideal surfaces for metal-enhanced phenomena, producing similar enhancements as compared to clean glass surfaces. Subsequently, we speculate that plastic substrates for MEF will find common place, as compared to the more expensive and less versatile traditional silica based supports.

Keywords

Metal-enhanced fluorescence radiative decay engineering plastics modified plastics polycarbonate 

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • Kadir Aslan
    • 1
  • Ramachandram Badugu
    • 2
  • Joseph R. Lakowicz
    • 2
  • Chris D. Geddes
    • 1
    • 2
  1. 1.Laboratory for Advanced Medical PlasmonicsInstitute of Fluorescence, Medical Biotechnology Center, University of Maryland Biotechnology InstituteBaltimoreMaryland
  2. 2.Center for Fluorescence Spectroscopy, Medical Biotechnology CenterUniversity of Maryland School of MedicineBaltimoreMaryland

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