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Broadband Fluorescence Enhancement and Ultrasensitive DNA Detection Using Plasmonic Open-Ring Nanoarrays

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Abstract

Silver open-ring nanostructures were designed for broadband fluorescence enhancement of quantum dots (QDs) and molecular beacons. The plasmon-enhanced fluorescence permits high signal-to-noise ratio yielding a ~300fM detection limit, superior to those on plane silver surfaces.

© 2018 The Author(s)

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