High resolution reverse-offset printed wearable laminated textile capacitive sensor for continuous monitoring of atopic dermatitis
High resolution reverse-offset printed wearable laminated textile capacitive sensor for continuous monitoring of atopic dermatitis
Reverse-offset printing (ROP) enables microscale patterning on flexible substrates, making it ideal for fabricating interdigital capacitive (IDC) sensors for atopic dermatitis (AD) monitoring. AD, characterized by skin dryness and inflammation, demands precise hydration tracking. Tailoring IDC electrode gaps to 50 µm concentrates the electric field within the stratum corneum (SC), enhancing sensitivity beyond the capabilities of traditional screen printing. Finite element modelling and ROP were employed to assess the impact of electrode geometry and encapsulation thickness on sensor performance. Findings indicate that 50 µm electrodes with encapsulation layers under 10 µm maintain high sensitivity and consistent operation. A clinical case study demonstrated the 50 µm sensor’s ability to distinguish lesional from non-lesional skin. These results inform the optimization of encapsulation–performance balance and advance the design of wearable, high-resolution IDC sensors for continuous skin hydration monitoring in personalized dermatological care.
Dai, Huanghao
214c9368-7f1b-41c9-b3e9-5715d1ba21c5
Todorov, Alexandar R.
7d07e4a8-bbca-471f-b7fc-72a7835dcfe1
Yong, Sheng
688cbcf0-b32e-4b2b-9891-a0e0e1f59d71
Torah, Russel
7147b47b-db01-4124-95dc-90d6a9842688
Ardern-Jones, Michael
7ac43c24-94ab-4d19-ba69-afaa546bec90
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
2 August 2025
Dai, Huanghao
214c9368-7f1b-41c9-b3e9-5715d1ba21c5
Todorov, Alexandar R.
7d07e4a8-bbca-471f-b7fc-72a7835dcfe1
Yong, Sheng
688cbcf0-b32e-4b2b-9891-a0e0e1f59d71
Torah, Russel
7147b47b-db01-4124-95dc-90d6a9842688
Ardern-Jones, Michael
7ac43c24-94ab-4d19-ba69-afaa546bec90
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Dai, Huanghao, Todorov, Alexandar R., Yong, Sheng, Torah, Russel, Ardern-Jones, Michael and Beeby, Steve
(2025)
High resolution reverse-offset printed wearable laminated textile capacitive sensor for continuous monitoring of atopic dermatitis.
npj Flexible Electronics, 9 (1), [78].
(doi:10.1038/s41528-025-00456-x).
Abstract
Reverse-offset printing (ROP) enables microscale patterning on flexible substrates, making it ideal for fabricating interdigital capacitive (IDC) sensors for atopic dermatitis (AD) monitoring. AD, characterized by skin dryness and inflammation, demands precise hydration tracking. Tailoring IDC electrode gaps to 50 µm concentrates the electric field within the stratum corneum (SC), enhancing sensitivity beyond the capabilities of traditional screen printing. Finite element modelling and ROP were employed to assess the impact of electrode geometry and encapsulation thickness on sensor performance. Findings indicate that 50 µm electrodes with encapsulation layers under 10 µm maintain high sensitivity and consistent operation. A clinical case study demonstrated the 50 µm sensor’s ability to distinguish lesional from non-lesional skin. These results inform the optimization of encapsulation–performance balance and advance the design of wearable, high-resolution IDC sensors for continuous skin hydration monitoring in personalized dermatological care.
Text
s41528-025-00456-x
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Accepted/In Press date: 9 July 2025
Published date: 2 August 2025
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Publisher Copyright:
© The Author(s) 2025.
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Local EPrints ID: 508781
URI: http://eprints.soton.ac.uk/id/eprint/508781
ISSN: 2397-4621
PURE UUID: b80e168d-486c-47c4-b0c3-22d45347e227
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Date deposited: 03 Feb 2026 17:46
Last modified: 04 Feb 2026 02:52
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