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An enhanced sensitive graphene-based spr biosensor with angular modulation

Hamid Toloue, A. T. and Ikohza, Anthony Centeno Nano (2015) An enhanced sensitive graphene-based spr biosensor with angular modulation. Arpn Journal Of Engineering And Applied Sciences, 10 (16). pp. 7119-7123. ISSN 1819-6608

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This paper theoretically presents an improved sensitive surface plasmon resonance (SPR) biosensor using multilayer graphene with angular modulation. Metal thin film functionalization with graphene leads to an enhanced sensitive biosensor. This is due to pi-stacking interaction between carbon-based hexagonal structure of graphene and carbon-based ring biomolecules which increase biomolecule adsorption in the graphene layers. In comparison to conventional SPR sensors this produces a large change in the local refractive index at the sensor surface. The light reflection coupled into a SPR mode propagating along a silver-graphene interface is calculated and compared to a conventional silver-based SPR biosensor. The comparison result shows the improvement in sensitivity of biosensor.

Item Type:Article
Uncontrolled Keywords:biosensor, graphene, silver, surface plasmon resonance
Subjects:A General Works
ID Code:57753
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:09 Apr 2017 16:09

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