Numerical analysis on DNA-sensor based on copper-graphene surface plasmon resonance

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 a...

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書目詳細資料
Main Authors: Hamid Toloue, Ajili Tousi, Centeno, Anthony Edward Robert
格式: Conference or Workshop Item
語言:English
出版: 2015
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在線閱讀:http://eprints.utm.my/id/eprint/62130/1/AnthonyEdwardRobert2015_NumericalAnalysisonDNASensorBasedonCopper.pdf
http://eprints.utm.my/id/eprint/62130/
https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=33739
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機構: Universiti Teknologi Malaysia
語言: English
實物特徵
總結: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 coppergraphene 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.