Issue 9, 2011

Plasmonic properties of silver nanostructures coated with an amorphous silicon–carbon alloy and their applications for sensitive sensing of DNA hybridization

Abstract

The use of an amorphous silicon–carbon alloy overcoating on silver nanostructures in a localized surface plasmon resonance (LSPR) sensing platform allows for decreasing the detection limit by an order of magnitude as compared to sensors based on gold nanostructures deposited on glass. In addition, silver based multilayer structures show a distinct plasmonic behaviour as compared to gold based nanostructures, which provides the sensor with an increased short-range sensitivity and a decreased long-range sensitivity.

Graphical abstract: Plasmonic properties of silver nanostructures coated with an amorphous silicon–carbon alloy and their applications for sensitive sensing of DNA hybridization

Article information

Article type
Paper
Submitted
20 Dec 2010
Accepted
24 Feb 2011
First published
24 Mar 2011

Analyst, 2011,136, 1859-1866

Plasmonic properties of silver nanostructures coated with an amorphous silicon–carbon alloy and their applications for sensitive sensing of DNA hybridization

L. Touahir, E. Galopin, R. Boukherroub, A. Chantal Gouget-Laemmel, J. Chazalviel, F. Ozanam, O. Saison, A. Akjouj, Y. Pennec, B. Djafari-Rouhani and S. Szunerits, Analyst, 2011, 136, 1859 DOI: 10.1039/C0AN01022G

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