Design of Graphene Metasurface Sensor for Efficient Detection of COVID-19

The COVID-19 pandemic has underscored the essential need for quick and precise virus detection techniques, to stop the virus from spreading. In this paper, we have proposed a brand-new graphene metasurface sensor for effective COVID-19 detection. We have used graphene metasurfaces to increase the sensitivity of the proposed sensor. The suggested sensor architecture takes advantage of the plasmonic characteristics of graphene metasurfaces to enable the detection of particular COVID-19-related biomarkers. Strong light-graphene interactions are achieved through careful tailoring of the graphene metasurface geometry, resulting in improved sensing capabilities. The suggested graphene metasurface sensor has a number of benefits, including its small size, low cost, and ability to work with current detecting systems. Additionally, its label-free detection methodology does away with the need for laborious sample preparation stages, enabling quick on-site testing. The sensor's performance is compared to current state-of-the-art detection techniques in order to demonstrate its higher sensitivity and effectiveness. The sensor achieves a maximum sensitivity of sensitivity of 600 GHz/RIU and an excellent FOM value of 4.959 RIU⁻¹.