Asymmetric “Janus” Biogel for Human‐Machine Interfaces
Abstract: Human‐machine interfaces (HMIs) are essential for effective communication between machines and tissues. However, mechanical and biological mismatches, along with weak adhesion between rigid electronic devices and soft tissue, often cause unreliable responses and affect the signal recording of HMIs. In this study, an asymmetrical “Janus” biogel patch with one side firmly adhering to tissues, and the other surface having little adhesion and minimal interactions with surrounding environments has been developed. A series of analytical, mechanical, and electrical tests are performed to investigate the “Janus” biogel patch as a functional and biocompatible HMI. It is found that the gallic acid‐modified gelatin adhesive surface on one side exhibits body temperature‐dependent tissue adhesion, enabling low modulus and seamless skin contact. The other side is a tough gelatin/glycerol gel layer, which is thermally welded into the adhesive layer and functions as an encapsulant to prevent external interference due to adhesion. The encapsulation layer also exhibits a low friction coefficient when wet and proves to be a reliable alternative barrier to conventional encapsulation materials. The scientific insights and engineering principles revealed in this type of “Janus” biogel will be applicable to a broad range of biomedical applications, such as epidermal adhesive electrodes or skin‐adhesive wearable devices.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Asymmetric “Janus” Biogel for Human‐Machine Interfaces ; day:11 ; month:05 ; year:2023 ; extent:12
Advanced functional materials ; (11.05.2023) (gesamt 12)
- Creator
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Wei, Yuan
He, Yingying
Wang, Chunyu
Chen, Gang
Zhao, Boxin
- DOI
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10.1002/adfm.202214366
- URN
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urn:nbn:de:101:1-2023051115381218876314
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:49 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wei, Yuan
- He, Yingying
- Wang, Chunyu
- Chen, Gang
- Zhao, Boxin
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