Detection of Virus SARS-CoV-2 Using a Surface Plasmon Resonance Device Based on BiFeO3-Graphene Layers

Sofyan A Taya; Malek G Daher; Abdulkarem H M Almawgani; Ayman Taher Hindi; Samer H Zyoud; Ilhami Colak

doi:10.1007/s11468-023-01867-0

Detection of Virus SARS-CoV-2 Using a Surface Plasmon Resonance Device Based on BiFeO₃-Graphene Layers

Plasmonics. 2023 May 10:1-8. doi: 10.1007/s11468-023-01867-0. Online ahead of print.

Authors

Sofyan A Taya¹, Malek G Daher¹, Abdulkarem H M Almawgani², Ayman Taher Hindi², Samer H Zyoud³, Ilhami Colak⁴

Affiliations

¹ Physics Department, Islamic University of Gaza, P.O. Box 108, Gaza, Palestine.
² Electrical Engineering Department, College of Engineering, Najran University, Najran, Kingdom of Saudi Arabia.
³ Department of Mathematics and Sciences, Ajman University, Ajman, United Arab Emirates.
⁴ Department of Electrical and Electronics Engineering, Nisantasi University, Istanbul, Turkey.

Abstract

Coronavirus disease (COVID-19) pandemic outbreak is being investigated by severe respirational syndrome coronavirus-2 (SARS-CoV-2) as a global health issue. It is crucial to propose sensitive and rapid coronavirus detectors. Herein, we propose a biosensor based on surface plasmon resonance (SPRE) for the detection of SARS-CoV-2 virus. To achieve improved sensitivity, a BiFeO₃ layer is inserted between a metal (Ag) thin film and a graphene layer in the proposed SPRE device so that it has the structure BK7 prism/ Ag/ BiFeO₃/ graphene/ analyte. It has been demonstrated that a small variation in the refractive index of the analyte can cause a considerable shift in the resonance angle caused by the remarkable dielectric properties of the BiFeO₃ layer, which include a high index of refraction and low loss. The proposed device has shown an extremely high sensitivity of 293 deg/RIU by optimizing the thicknesses of Ag, BiFeO₃, and the number of graphene sheets. The proposed SPRE-based sensor is encouraging for use in various sectors of biosensing because of its high sensitivity.

Keywords: BiFeO3; Graphene; SARS-CoV-2; Sensitivity; Surface plasmon resonance.

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