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Textile-Based Wearable Sensor for Skin Hydration Monitoring

This research describes a wearable skin hydration sensor based on cotton textile to determine the state of hydration within the skin via impedance analysis. The sensor structure comprises a textile substrate, thermoplastic over-layer, conductive patterns, and encapsulant, designed for stable and rel...

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Detalles Bibliográficos
Autores principales: Jang, Minju, Kim, Ho-Dong, Koo, Hyung-Jun, So, Ju-Hee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9500932/
https://www.ncbi.nlm.nih.gov/pubmed/36146334
http://dx.doi.org/10.3390/s22186985
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author Jang, Minju
Kim, Ho-Dong
Koo, Hyung-Jun
So, Ju-Hee
author_facet Jang, Minju
Kim, Ho-Dong
Koo, Hyung-Jun
So, Ju-Hee
author_sort Jang, Minju
collection PubMed
description This research describes a wearable skin hydration sensor based on cotton textile to determine the state of hydration within the skin via impedance analysis. The sensor structure comprises a textile substrate, thermoplastic over-layer, conductive patterns, and encapsulant, designed for stable and reliable monitoring of the skin’s impedance change in relation to hydration level. The porcine skin with different hydration levels was prepared as a model system of the skin, and the textile-based sensor carefully investigated the porcine skin samples’ impedance characteristics. The impedance study reveals that (1) the total impedance of skin decreases as its hydration level increases, and (2) the impedance of the stratum corneum and epidermis layers are more dominantly affected by the hydration level of the skin than the dermis layer. Even after repetitive bending cycles, the impedance data of skin measured by the sensor exhibit a reliable dependence on the skin hydration level, which validates the flexibility and durability of the sensor. Finally, it is shown that the textile-based skin hydration sensor can detect various body parts’ different hydration levels of human skin while maintaining a stable conformal contact with the skin. The resulting data are well-matched with the readings from a commercial skin hydration sensor.
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spelling pubmed-95009322022-09-24 Textile-Based Wearable Sensor for Skin Hydration Monitoring Jang, Minju Kim, Ho-Dong Koo, Hyung-Jun So, Ju-Hee Sensors (Basel) Article This research describes a wearable skin hydration sensor based on cotton textile to determine the state of hydration within the skin via impedance analysis. The sensor structure comprises a textile substrate, thermoplastic over-layer, conductive patterns, and encapsulant, designed for stable and reliable monitoring of the skin’s impedance change in relation to hydration level. The porcine skin with different hydration levels was prepared as a model system of the skin, and the textile-based sensor carefully investigated the porcine skin samples’ impedance characteristics. The impedance study reveals that (1) the total impedance of skin decreases as its hydration level increases, and (2) the impedance of the stratum corneum and epidermis layers are more dominantly affected by the hydration level of the skin than the dermis layer. Even after repetitive bending cycles, the impedance data of skin measured by the sensor exhibit a reliable dependence on the skin hydration level, which validates the flexibility and durability of the sensor. Finally, it is shown that the textile-based skin hydration sensor can detect various body parts’ different hydration levels of human skin while maintaining a stable conformal contact with the skin. The resulting data are well-matched with the readings from a commercial skin hydration sensor. MDPI 2022-09-15 /pmc/articles/PMC9500932/ /pubmed/36146334 http://dx.doi.org/10.3390/s22186985 Text en © 2022 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
Jang, Minju
Kim, Ho-Dong
Koo, Hyung-Jun
So, Ju-Hee
Textile-Based Wearable Sensor for Skin Hydration Monitoring
title Textile-Based Wearable Sensor for Skin Hydration Monitoring
title_full Textile-Based Wearable Sensor for Skin Hydration Monitoring
title_fullStr Textile-Based Wearable Sensor for Skin Hydration Monitoring
title_full_unstemmed Textile-Based Wearable Sensor for Skin Hydration Monitoring
title_short Textile-Based Wearable Sensor for Skin Hydration Monitoring
title_sort textile-based wearable sensor for skin hydration monitoring
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9500932/
https://www.ncbi.nlm.nih.gov/pubmed/36146334
http://dx.doi.org/10.3390/s22186985
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