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Metal-enhanced fluorescence using anisotropic silver nanostructures: critical progress to date

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Abstract

In this critical and timely review, the effects of anisotropic silver nanostructures on the emission intensity and photostability of a key fluorophore that is frequently used in many biological assays is examined. The silver nanostructures consist of triangular, rod-like, and fractal-like nanoparticles of silver deposited on conventional glass substrates. The close proximity to silver nanostructures results in greater intensity and photostability of the fluorophore than for fluorophores solely deposited on glass substrates. These new anisotropic silver nanostructure-coated surfaces show much more favorable effects than silver island films or silver colloid-coated substrates. Subsequently, the use of metal-enhanced fluorescence (MEF) for biosensing applications is discussed.

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Acknowledgments

This work was supported by the NIH, GM070929-01.

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Authors and Affiliations

  1. Laboratory for Advanced Medical Plasmonics, Medical Biotechnology Center, Institute of Fluorescence, University of Maryland Biotechnology Institute, 725 West Lombard Street, Baltimore, MD, 21201, USA

    Kadir Aslan & Chris D. Geddes

  2. Department of Biochemistry and Molecular Biology, Center for Fluorescence Spectroscopy, Medical Biotechnology Center, University of Maryland School of Medicine, 725 West Lombard Street, Baltimore, MD, 21201, USA

    Joseph R. Lakowicz & Chris D. Geddes

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  1. Kadir Aslan
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  2. Joseph R. Lakowicz
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  3. Chris D. Geddes
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Correspondence to Chris D. Geddes.

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Aslan, K., Lakowicz, J.R. & Geddes, C.D. Metal-enhanced fluorescence using anisotropic silver nanostructures: critical progress to date. Anal Bioanal Chem 382, 926–933 (2005). https://doi.org/10.1007/s00216-005-3195-3

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  • DOI: https://doi.org/10.1007/s00216-005-3195-3

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