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Sensitivity analysis of a sub-wavelength localized surface plasmon resonance graphene biosensor

conference contribution
posted on 2012-01-01, 00:00 authored by Saiful Islam, Abbas KouzaniAbbas Kouzani, Xiujuan Dai, H Schiretz, Yang Lim, W Michalski
Localized surface plasmon resonance (LSPR) is a promising detection method for label-free sensing of biomolecules. In this paper, a multilayer design for a LSPR biosensor is presented. In the proposed design, a periodic array of dielectric grating is incorporated on top of a graphene layer in the biosensor. The aim is to improve sensitivity of the LSPR biosensor through monitoring biomolecular interactions of biotin-streptavidin. Sensitivity improvement is obtained for the proposed LSPR biosensor compared with conventional SPR counterparts. In addition, to optimize the design, we have investigated grating geometry including volume factor and grating depth. The outcome of this investigation identifies ideal functioning conditions corresponding to the best design parameters.

History

Event

Complex Medical Engineering. Conference (6th : 2012 : Kobe, Japan)

Pagination

490 - 494

Publisher

IEEE Computer Society

Location

Kobe, Japan

Place of publication

Los Alamitos, Calif.

Start date

2012-07-01

End date

2012-07-04

ISBN-13

9781467316170

Language

eng

Publication classification

E1 Full written paper - refereed

Copyright notice

2012, IEEE

Title of proceedings

CME 2012 : Proceedings of the 2012 IEEE/ICME International Conference on Complex Medical Engineering

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