Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor

This paper reports protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor. The sensor is fabricated by incorporating five Metamaterial (MM) structures based on split-ring resonators. The MM demonstrates concurrent negative permittivity and...

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Main Authors: Shihabun Sakib, Ahasanul Hoque, Mohammad Tariqul Islam, Md. Shabiul Islam, Mohamed S. Soliman, Haitham Alsaif
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:International Journal of Optomechatronics
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Online Access:https://www.tandfonline.com/doi/10.1080/15599612.2024.2432675
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author Shihabun Sakib
Ahasanul Hoque
Mohammad Tariqul Islam
Md. Shabiul Islam
Mohamed S. Soliman
Haitham Alsaif
author_facet Shihabun Sakib
Ahasanul Hoque
Mohammad Tariqul Islam
Md. Shabiul Islam
Mohamed S. Soliman
Haitham Alsaif
author_sort Shihabun Sakib
collection DOAJ
description This paper reports protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor. The sensor is fabricated by incorporating five Metamaterial (MM) structures based on split-ring resonators. The MM demonstrates concurrent negative permittivity and permeability at 6.5GHz and 8.1GHz. The incorporation of MM leads to an enhancement in the electric field concentration within the sensing zone of the differential sensor, hence enabling the simultaneous detection of two protein samples. And it can operate in a bandwidth of over 1GHz with two resonance frequencies at 3.955GHz and 4.31GHz. The calculated average sensitivity is 0.7198, higher than the previously reported differential sensors. During sensing measurement, protein layers are covered with a whey protein film. Whey protein can sometimes lose its original shape. As a result, protein quality decreases. Also, denaturing has the potential to eradicate protein. The decrease of dielectric loss factor due to the denaturation of whey protein can be analyzed by sensing the reflection coefficient S11 through the proposed differential sensor. Finally, we have shown the Q-factor analysis and plotted the fitting curve for the protein samples to justify the sensor’s sensitivity. The proposed differential sensor is small, operates in a wide bandwidth, and is highly sensitive, making it suitable for the chemical and food industries.
format Article
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issn 1559-9612
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publishDate 2025-12-01
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series International Journal of Optomechatronics
spelling doaj-art-ded5b112a37c42e3858a12a0847c4ece2025-08-20T02:42:23ZengTaylor & Francis GroupInternational Journal of Optomechatronics1559-96121559-96202025-12-0119110.1080/15599612.2024.2432675Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensorShihabun Sakib0Ahasanul Hoque1Mohammad Tariqul Islam2Md. Shabiul Islam3Mohamed S. Soliman4Haitham Alsaif5Institute of Climate Change, Universiti Kebangsaan Malaysia, Bangi, Selangor, MalaysiaInstitute of Climate Change, Universiti Kebangsaan Malaysia, Bangi, Selangor, MalaysiaDepartment of Electrical, Electronics and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, MalaysiaFaculty of Engineering (FOE), Multimedia University (MMU), Cyberjaya, Selangor, MalaysiaDepartment of Electrical Engineering, College of Engineering, Taif University, Taif, Saudi ArabiaDepartment of Electrical Engineering, College of Engineering, University of Ha’il, Ha’il, Saudi ArabiaThis paper reports protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor. The sensor is fabricated by incorporating five Metamaterial (MM) structures based on split-ring resonators. The MM demonstrates concurrent negative permittivity and permeability at 6.5GHz and 8.1GHz. The incorporation of MM leads to an enhancement in the electric field concentration within the sensing zone of the differential sensor, hence enabling the simultaneous detection of two protein samples. And it can operate in a bandwidth of over 1GHz with two resonance frequencies at 3.955GHz and 4.31GHz. The calculated average sensitivity is 0.7198, higher than the previously reported differential sensors. During sensing measurement, protein layers are covered with a whey protein film. Whey protein can sometimes lose its original shape. As a result, protein quality decreases. Also, denaturing has the potential to eradicate protein. The decrease of dielectric loss factor due to the denaturation of whey protein can be analyzed by sensing the reflection coefficient S11 through the proposed differential sensor. Finally, we have shown the Q-factor analysis and plotted the fitting curve for the protein samples to justify the sensor’s sensitivity. The proposed differential sensor is small, operates in a wide bandwidth, and is highly sensitive, making it suitable for the chemical and food industries.https://www.tandfonline.com/doi/10.1080/15599612.2024.2432675Differential sensormetamaterialproteinsensitivityQ-factor
spellingShingle Shihabun Sakib
Ahasanul Hoque
Mohammad Tariqul Islam
Md. Shabiul Islam
Mohamed S. Soliman
Haitham Alsaif
Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor
International Journal of Optomechatronics
Differential sensor
metamaterial
protein
sensitivity
Q-factor
title Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor
title_full Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor
title_fullStr Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor
title_full_unstemmed Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor
title_short Protein dielectric characterization using a tetra square-shaped DNG metamaterial as a differential microwave sensor
title_sort protein dielectric characterization using a tetra square shaped dng metamaterial as a differential microwave sensor
topic Differential sensor
metamaterial
protein
sensitivity
Q-factor
url https://www.tandfonline.com/doi/10.1080/15599612.2024.2432675
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