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Proceedings Paper

Detection of DNA hybridization with LSPR induced by surface relief nanostructure and particle plasmon
Author(s): Seyoung Moon; Youngjin Oh; Kyungjae Ma; Donghyun Kim; Hosub Lee; Kangtaek Lee
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Paper Abstract

DNA hybridization can be measured with enhanced sensitivity based on localized surface plasmon (LSP) induced by surface nanowire structure. Changes made to the structure result in higher plasmon momentum, which can be coupled to a particle plasmon induced by gold nanoparticles to which DNA molecules are adsorbed. With the insight gained from near-field pattern via calculation, target localization effect is also experimentally shown. We expect that orders of magnitude can be improved in terms of sensitivity if one is to combine the effect of particle-to-LSP coupling and target localization scheme.

Paper Details

Date Published: 24 August 2010
PDF: 8 pages
Proc. SPIE 7759, Biosensing III, 775913 (24 August 2010); doi: 10.1117/12.860367
Show Author Affiliations
Seyoung Moon, Yonsei Univ. (Korea, Republic of)
Youngjin Oh, Yonsei Univ. (Korea, Republic of)
Kyungjae Ma, Yonsei Univ. (Korea, Republic of)
Donghyun Kim, Yonsei Univ. (Korea, Republic of)
Hosub Lee, Yonsei Univ. (Korea, Republic of)
Kangtaek Lee, Yonsei Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7759:
Biosensing III
Hooman Mohseni; Manijeh Razeghi, Editor(s)

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