Numerical Analysis on DNA-sensor Based on Copper-graphene Surface Plasmon Resonance

Hamid Toloue, A.T. and Centeno, A. (2015) Numerical Analysis on DNA-sensor Based on Copper-graphene Surface Plasmon Resonance. In: 2015 International Conference on Smart Sensors and Application (ICSSA), Kuala Lumpur, Malaysia, 26-28 May 2015, pp. 16-19. ISBN 9781479973644 (doi: 10.1109/ICSSA.2015.7322502)

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This paper numerically presents a highly sensitive surface plasmon resonance (SPR) graphene-based biosensor by taking high adsorption efficiency of graphene into consideration. The pi-stacking interaction between carbon-based hexagonal structure of graphene with carbon-based ring biomolecules such as single-stranded DNA is the key factor behind this efficiency. Graphene layers added to a conventional copper SPR biosensor causes a drastic sensitivity enhancement. In comparison to conventional SPR sensors this produces a larger change in the refractive index at the metal-dielectric interface. The light reflection coupled into a SPR mode propagating along a copper-graphene layer is calculated and compared to a conventional SPR sensor. The proposed SPR sensor could then not only be applied for highly sensitive but also for cheap DNA-biosensor.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Centeno, Dr Anthony
Authors: Hamid Toloue, A.T., and Centeno, A.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Published Online:12 November 2015

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