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Effect of target localization on the sensitivity of a localized surface plasmon resonance biosensor based on subwavelength metallic nanostructures
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Byun, Kyung Min | - |
dc.contributor.author | Jang, Seong Min | - |
dc.contributor.author | Kim, Sung June | - |
dc.contributor.author | Kim, Donghyun | - |
dc.date.accessioned | 2009-08-21T04:06:09Z | - |
dc.date.available | 2009-08-21T04:06:09Z | - |
dc.date.issued | 2009-04 | - |
dc.identifier.citation | J. Opt. Soc. Am. A 26, 1027-1034 (2009) | en |
dc.identifier.issn | 1084-7529 (print) | - |
dc.identifier.issn | 1520-8532 (online) | - |
dc.identifier.uri | https://hdl.handle.net/10371/7435 | - |
dc.description.abstract | A localized surface plasmon resonance (LSPR) biosensor using surface relief nanostructures was investigated
to evaluate the importance of target localization on the sensitivity enhancement. The LSPR device was modeled as periodic metallic nanowires with a square profile on a gold film and the target as a self-assembled monolayer in buffer solution. The numerical results using rigorous coupled-wave analysis and the finitedifference time domain method demonstrated localized plasmonic fields induced by the surface nanostructure from which the effect of target localization on the sensitivity was quantitatively analyzed. Interestingly, it was found that target localization on nanowire sidewalls improves sensitivity significantly because of strong overlap with localized plasmonic fields. An LSPR structure optimized for a localized target on sidewalls provides sensitivity enhancement per unit target volume by more than 20 times in water ambience. | en |
dc.description.sponsorship | This work was supported by the Korea Research Foundation
grant funded by the Korean Government Basic Research Promotion Fund (MOEHRD)-(KRF-2008-331- D00229). D. Kim acknowledges support by the Korea Science and Engineering Foundation (KOSEF) through the National Core Research Center for Nanomedical Technology (R15-2004-024-00000-0), KOSEF 2007-8- 1158, and R01-2007-000-20821-0 funded by the Korean Government Ministry of Science and Technology (MOST). Partial support was provided by the System IC 2010 project of Ministry of Knowledge Economy and by the MEMS Research Center for National Defense funded by the Defense Acquisition Program Administration under 2006-MM-41-5ND0600407. S. M. Jang and S. J. Kim were supported by the KOSEF through the Nano Bioelectronics and Systems Research Center (NBS-ERC) at Seoul National University | en |
dc.language.iso | en | en |
dc.publisher | Optical Society of America | en |
dc.title | Effect of target localization on the sensitivity of a localized surface plasmon resonance biosensor based on subwavelength metallic nanostructures | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 변경민 | - |
dc.contributor.AlternativeAuthor | 장성민 | - |
dc.contributor.AlternativeAuthor | 김성준 | - |
dc.contributor.AlternativeAuthor | 김동현 | - |
dc.identifier.doi | 10.1364/JOSAA.26.001027 | - |
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