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Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film

Biopolymers are a solution to solve the increasing problems caused by the advances and revolution in the electronic industry owing to the use of hazardous chemicals. In this work, we have used egg white (EW) as the low-cost functional layer of a biocompatible humidity sensor and deposited it on gold...

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Autores principales: Mutee Ur Rehman, Hafiz Mohammad, Rehman, Muhammad Muqeet, Saqib, Muhammad, Ali Khan, Shenawar, Khan, Maryam, Yang, Yunsook, Kim, Seongwan, Rahman, Sheik Abdur, Kim, Woo-Young
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308394/
https://www.ncbi.nlm.nih.gov/pubmed/34361201
http://dx.doi.org/10.3390/nano11071815
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author Mutee Ur Rehman, Hafiz Mohammad
Rehman, Muhammad Muqeet
Saqib, Muhammad
Ali Khan, Shenawar
Khan, Maryam
Yang, Yunsook
Kim, Seongwan
Rahman, Sheik Abdur
Kim, Woo-Young
author_facet Mutee Ur Rehman, Hafiz Mohammad
Rehman, Muhammad Muqeet
Saqib, Muhammad
Ali Khan, Shenawar
Khan, Maryam
Yang, Yunsook
Kim, Seongwan
Rahman, Sheik Abdur
Kim, Woo-Young
author_sort Mutee Ur Rehman, Hafiz Mohammad
collection PubMed
description Biopolymers are a solution to solve the increasing problems caused by the advances and revolution in the electronic industry owing to the use of hazardous chemicals. In this work, we have used egg white (EW) as the low-cost functional layer of a biocompatible humidity sensor and deposited it on gold (Au) interdigitated electrodes (IDEs) patterned through the state-of-the-art fabrication technology of thermal vacuum evaporation. The presence of hydrophilic proteins inside the thin film of EW makes it an attractive candidate for sensing humidity. Usually, the dependence of the percentage of relative humidity (%RH) on the reliability of measurement setup is overlooked for impedimetric humidity sensors but we have used a modified experimental setup to enhance the uniformity of the obtained results. The characteristics of our device include almost linear response with a quick response time (1.2 s) and fast recovery time (1.7 s). High sensitivity of 50 kΩ/%RH was achieved in the desirable detection range of 10–85%RH. The device size was intentionally kept small for its potential integration in a marketable chip. Results for the response of our fabricated sensor for dry and wet fingertips, along with determining the rate of breathing through the mouth, are part of this study, making it a potential device for health monitoring.
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spelling pubmed-83083942021-07-25 Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film Mutee Ur Rehman, Hafiz Mohammad Rehman, Muhammad Muqeet Saqib, Muhammad Ali Khan, Shenawar Khan, Maryam Yang, Yunsook Kim, Seongwan Rahman, Sheik Abdur Kim, Woo-Young Nanomaterials (Basel) Article Biopolymers are a solution to solve the increasing problems caused by the advances and revolution in the electronic industry owing to the use of hazardous chemicals. In this work, we have used egg white (EW) as the low-cost functional layer of a biocompatible humidity sensor and deposited it on gold (Au) interdigitated electrodes (IDEs) patterned through the state-of-the-art fabrication technology of thermal vacuum evaporation. The presence of hydrophilic proteins inside the thin film of EW makes it an attractive candidate for sensing humidity. Usually, the dependence of the percentage of relative humidity (%RH) on the reliability of measurement setup is overlooked for impedimetric humidity sensors but we have used a modified experimental setup to enhance the uniformity of the obtained results. The characteristics of our device include almost linear response with a quick response time (1.2 s) and fast recovery time (1.7 s). High sensitivity of 50 kΩ/%RH was achieved in the desirable detection range of 10–85%RH. The device size was intentionally kept small for its potential integration in a marketable chip. Results for the response of our fabricated sensor for dry and wet fingertips, along with determining the rate of breathing through the mouth, are part of this study, making it a potential device for health monitoring. MDPI 2021-07-13 /pmc/articles/PMC8308394/ /pubmed/34361201 http://dx.doi.org/10.3390/nano11071815 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mutee Ur Rehman, Hafiz Mohammad
Rehman, Muhammad Muqeet
Saqib, Muhammad
Ali Khan, Shenawar
Khan, Maryam
Yang, Yunsook
Kim, Seongwan
Rahman, Sheik Abdur
Kim, Woo-Young
Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film
title Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film
title_full Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film
title_fullStr Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film
title_full_unstemmed Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film
title_short Highly Efficient and Wide Range Humidity Response of Biocompatible Egg White Thin Film
title_sort highly efficient and wide range humidity response of biocompatible egg white thin film
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308394/
https://www.ncbi.nlm.nih.gov/pubmed/34361201
http://dx.doi.org/10.3390/nano11071815
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