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Proceedings Paper

Plasmonic nanorainbow for label-free biomolecule sensing
Author(s): Gang Logan Liu; Erik H. Anderson; James Alexander Liddle; Luke P. Lee
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Paper Abstract

A gold nanowire array that we call nanorainbow SPR sensor array can be chemically functionalized and used to capture biomolecules. The localized plasmon resonance wavelength of the gold nanowires shifts on the biomolecule binding and reaction sites. The plasmon resonance shift of the gold nanorainbow is sensitive to the biomolecule immobilization in sub-nM concentration. As an application example, label-free oligonucleotide hybridizations are detected on the nanorainbow sensor in a multiplexed microfluidic chip.

Paper Details

Date Published: 31 March 2005
PDF: 8 pages
Proc. SPIE 5703, Plasmonics in Biology and Medicine II, (31 March 2005); doi: 10.1117/12.592517
Show Author Affiliations
Gang Logan Liu, Univ. of California/Berkeley (United States)
Erik H. Anderson, Lawrence Berkeley National Lab. (United States)
James Alexander Liddle, Lawrence Berkeley National Lab. (United States)
Luke P. Lee, Univ. of California/Berkeley (United States)

Published in SPIE Proceedings Vol. 5703:
Plasmonics in Biology and Medicine II
Tuan Vo-Dinh; Joseph R. Lakowicz; Zygmunt K. Gryczynski, Editor(s)

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