Autonomous self‐healing 3D micro‐suction adhesives for multi‐layered amphibious soft skin electronics

Autonomously self‐healing, reversible, and soft adhesive microarchitectures and structured electric elements could be important features in stable and versatile bioelectronic devices adhere to complex surfaces of the human body (rough, dry, wet, and vulnerable). In this study, we propose an autonomo...

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Veröffentlicht in:InfoMat 2024-10, Vol.6 (10), p.n/a
Hauptverfasser: Lim, Dohyun, Jeong, Min Woo, Min, Hyeongho, Lee, Yeon Soo, Hwang, Gui Won, Jeon, Seung Hwan, Jung, Kyu Ho, Vo, Ngoc Thanh Phuong, Kim, Min‐Seok, Kim, Da Wan, Oh, Jin Young, Pang, Changhyun
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Sprache:eng
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Zusammenfassung:Autonomously self‐healing, reversible, and soft adhesive microarchitectures and structured electric elements could be important features in stable and versatile bioelectronic devices adhere to complex surfaces of the human body (rough, dry, wet, and vulnerable). In this study, we propose an autonomous self‐healing multi‐layered adhesive patch inspired by the octopus, which possess self‐healing and robust adhesion properties in dry/underwater conditions. To implement autonomously self‐healing octopus‐inspired architectures, a dynamic polymer reflow model based on structural and material design suggests criteria for three‐dimensional patterning self‐healing elastomers. In addition, self‐healing multi‐layered microstructures with different moduli endows efficient self‐healing ability, human‐friendly reversible bio‐adhesion, and stable mechanical deformability. Through programmed molecular behavior of microlevel hybrid multiscale architectures, the bioinspired adhesive patch exhibited robust adhesion against rough skin surface under both dry and underwater conditions while enabling autonomous adhesion restoring performance after damaged (over 95% healing efficiency under both conditions for 24 h at 30°C). Finally, we developed a self‐healing skin‐mountable adhesive electronics with repeated attachment and minimal skin irritation by laminating thin gold electrodes on octopus‐like structures. Based on the robust adhesion and intimate contact with skin, we successfully obtained reliable measurements during dynamic motion under dry, wet, and damaged conditions. This study proposes a bioelectronic device combining autonomous self‐healable, reversible, and soft adhesive microarchitectures inspired by octopus features. It achieves stable adhesion to rough surfaces of the human body under dry and wet conditions, with over 95% healing efficiency within 24 h. Additionally, it introduces skin‐mountable adhesive electronics for reliable measurements during dynamic motion with minimal skin irritation.
ISSN:2567-3165
2567-3165
DOI:10.1002/inf2.12603