SARS-CoV-2 detecting rapid metasurface-based sensor

Authors

Shobhit K. Patel, Marwadi University, Rajkot, Gujarat, India
Jaymit Surve, Marwadi University, Rajkot, Gujarat, India
Juveriya Parmar, University of Nebraska-LincolnFollow
Khaled Aliqab, Jouf University, Sakaka, Saudi Arabia
Meshari Alsharari, Jouf University, Sakaka, Saudi Arabia
Ammar Armghan, Jouf University, Sakaka, Saudi ArabiaFollow

Document Type

Article

Date of this Version

2022

Citation

Diamond & Related Materials 132 (2023) 109644

https://doi.org/10.1016/j.diamond.2022.109644

PMC9780024

Comments

© 2022 Elsevier B.V.

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Abstract

We have proposed a novel approach to detect COVID-19 by detecting the ethyl butanoate which high volume ratio is present in the exhaled breath of a COVID-19 infected person. We have employed a refractive index sensor (RIS) with the help of a metasurface-based slotted T-shape perfect absorber that can detect ethyl butanoate present in exhaled breath of COVID-19 infected person with high sensitivity and in-process SARS-CoV-2. The optimized structure of the sensor is obtained by varying several structure parameters including structure length and thickness, slotted T-shape resonator length, width, and thickness. Sensor's performance is evaluated based on numerous factors comprising of sensitivity, Q factor, detection limit, a figure of merit (FOM), detection accuracy, and other performance defining parameters. The proposed slotted T-shape RIS achieved the largest sensitivity of 2500 nm/RIU, Q factor of 131.06, a FOM of 131.58 RIU􀀀 1, detection limit of 0.0224 RIU.