Detection of DNA hybridization with LSPR induced by surface relief nanostructure and particle plasmon

Seyoung Moon, Youngjin Oh, Kyungjae Ma, Donghyun Kim, Hosub Lee, Kangtaek Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationBiosensing III
DOIs
Publication statusPublished - 2010
EventBiosensing III - San Diego, CA, United States
Duration: 2010 Aug 12010 Aug 3

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7759
ISSN (Print)0277-786X

Other

OtherBiosensing III
CountryUnited States
CitySan Diego, CA
Period10/8/110/8/3

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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