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Proceedings Paper

Silver nanoislands based SERS-active substrates for DNAs detection
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Paper Abstract

Surface enhanced Raman spectroscopy (SERS) based on plasmonic colocalization between DNA attached gold nanoparticles and silver nanoislands substrates. Raman spectra measured on a silver nanoislands substrate were observed 20 and 1.8 folds signal enhancements relative to them on a film substrate with high and low numerical apertures of lenses, respectively. By comparison between calculations and experiments results, we proved that distinct differences of the signal enhancements came from changing field of view on random nanoislands substrate. Consequently, we show that nanoislands substrates with a precise position control can be a good candidate for a SERS substrate which can achieve significant signal enhancements without a complicated lithographic process.

Paper Details

Date Published: 11 March 2015
PDF: 6 pages
Proc. SPIE 9340, Plasmonics in Biology and Medicine XII, 93400Y (11 March 2015); doi: 10.1117/12.2079003
Show Author Affiliations
Hyerin Song, Pusan National Univ. (Korea, Republic of)
Seunghun Lee, Pusan National Univ. (Korea, Republic of)
Taeyoung Kang, Pusan National Univ. (Korea, Republic of)
Kyujung Kim, Pusan National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 9340:
Plasmonics in Biology and Medicine XII
Tuan Vo-Dinh; Joseph R. Lakowicz, Editor(s)

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