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Metal-enhanced fluorescence using anisotropic silver nanostructures: critical progress to date |
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| Authors: | Kadir?Aslan,Joseph?R.?Lakowicz,Chris?D.?Geddes author-information" > author-information__contact u-icon-before" > mailto:geddes@umbi.umd.edu" title=" geddes@umbi.umd.edu" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author |
| Affiliation: | (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;(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 |
| 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. |
| Keywords: | Silver nanotriangles Silver nanorods Anisotropic nanoparticles Metal-enhanced fluorescence Radiative decay engineering Increased excitation rate |
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