Comparison of performance parameters for conventional and localized surface plasmon resonance graphene biosensors

Islam, Md. Saiful, Kouzani, Abbas Z., Dai, Xiujuan J., Michalski, Wojtek P. and Gholamhosseini, H. 2011, Comparison of performance parameters for conventional and localized surface plasmon resonance graphene biosensors, in EMBC 2011 : Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, [Boston, Mass.], pp. 1851-1854.

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Title Comparison of performance parameters for conventional and localized surface plasmon resonance graphene biosensors
Author(s) Islam, Md. Saiful
Kouzani, Abbas Z.
Dai, Xiujuan J.
Michalski, Wojtek P.
Gholamhosseini, H.
Conference name IEEE Engineering in Medicine and Biology Society. Conference (33rd : 2011 : Boston, Mass.)
Conference location Boston, Mass.
Conference dates 30 Aug.-3 Sep. 2011
Title of proceedings EMBC 2011 : Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Editor(s) [Unknown]
Publication date 2011
Conference series IEEE Engineering in Medicine and Biology Society. Conference
Start page 1851
End page 1854
Publisher IEEE
Place of publication [Boston, Mass.]
Keyword(s) biosensors
gold
optical surface waves
plasmons
sensitivity
surface impedance
surface waves
Summary This paper investigates the enhancement of the sensitivity and adsorption efficiency of a localized surface plasmon resonance (LSPR) biosensor that includes a layer of graphene sheet on top of the gold layer. For this purpose, biomolecular interactions of biotin-streptavidin with the graphene layer on the gold thin film are monitored. The performance of the LSPR graphene biosensor is theoretically and numerically assessed in terms of sensitivity and adsorption efficiency under varying conditions, including the thickness of biomolecule layer, number of graphene layers and operating wavelength. Enhanced sensitivity and improved adsorption efficiency are obtained for the LSPR graphene biosensor in comparison with its conventional counterpart. It is found that the LSPR graphene biosensor has better sensitivity with lower operating wavelength and larger number of graphene layers.
ISBN 9781424441228
9781424441211
ISSN 1557-170X
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2011, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30042370

Document type: Conference Paper
Collections: Institute for Technology Research and Innovation
School of Engineering
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