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This report investigates design enhancements of Fiber Optic Surface PlasmonResonance (FO-SPR) biosensors with Gold and Silver metallic films. The effectof adding a Graphene coating on the sensitivity and detection accuracy ofFO-SPR biosensors is studied. We also compare the results for the addition offive layers of Graphene on both Gold-based and Silver-based FO-SPR biosensorsin order to determine the optimum sensor design. Our results indicate that thesensitivity of the biosensor increases when a Graphene coating is added, whilethe detection accuracy decreases. Results also demonstrate that the sensitivitydue to adding Graphene sheets increases more for Silver-based biosensor whencompared to Gold-based biosensors.

Exploring Graphene Effect on Fiber Optic Surface Plasmon Resonance Biosensor