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Textile-Based Wearable Sensor for Skin Hydration Monitoring

Overview
Journal Sensors (Basel)
Publisher MDPI
Specialty Biotechnology
Date 2022 Sep 23
PMID 36146334
Authors
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Abstract

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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References
1.
Schwan H . Electrical properties of tissue and cell suspensions. Adv Biol Med Phys. 1957; 5:147-209. DOI: 10.1016/b978-1-4832-3111-2.50008-0. View

2.
Gabriel S, Lau R, Gabriel C . The dielectric properties of biological tissues: II. Measurements in the frequency range 10 Hz to 20 GHz. Phys Med Biol. 1996; 41(11):2251-69. DOI: 10.1088/0031-9155/41/11/002. View

3.
Huang X, Yeo W, Liu Y, Rogers J . Epidermal differential impedance sensor for conformal skin hydration monitoring. Biointerphases. 2012; 7(1-4):52. DOI: 10.1007/s13758-012-0052-8. View

4.
Firooz A, Sadr B, Babakoohi S, Sarraf-Yazdy M, Fanian F, Kazerouni-Timsar A . Variation of biophysical parameters of the skin with age, gender, and body region. ScientificWorldJournal. 2012; 2012:386936. PMC: 3317612. DOI: 10.1100/2012/386936. View

5.
White E, Horne A, Runciman J, Orazem M, Navidi W, Roper C . On the correlation between single-frequency impedance measurements and human skin permeability to water. Toxicol In Vitro. 2011; 25(8):2095-104. DOI: 10.1016/j.tiv.2011.09.011. View