Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress
Abstract Soft conductive gels are essential for epidermal electronics but often face challenges when interfacing with uneven surfaces or areas with extensive hair, especially under mechanical stress. In this study, we employed the concept of liquid-to-solid transformation to enhance integration at b...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-55417-1 |
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| author | Tian Li Haobo Qi Cancan Zhao Zhenming Li Wei Zhou Guanjin Li Hao Zhuo Wei Zhai |
| author_facet | Tian Li Haobo Qi Cancan Zhao Zhenming Li Wei Zhou Guanjin Li Hao Zhuo Wei Zhai |
| author_sort | Tian Li |
| collection | DOAJ |
| description | Abstract Soft conductive gels are essential for epidermal electronics but often face challenges when interfacing with uneven surfaces or areas with extensive hair, especially under mechanical stress. In this study, we employed the concept of liquid-to-solid transformation to enhance integration at biointerfaces and designed an in-situ biogel capable of rapidly transitioning between liquid and solid states within 3 min via a temperature switch. The biogel features a semi-interpenetrating polymer network design and dual conduction pathways, resulting in high tensile strength (~1–3 MPa), a skin-compatible modulus (~0.3–1.1 MPa), strong skin adhesive strength (~1 MPa), and superior signal-to-noise ratio (SNR, ~30–40 dB). The biogel demonstrates significant performance in mechanically demanding environments, showing potential for accurately capturing outdoor exercise data, monitoring muscle recovery from sports-induced fatigue, and in vivo monitoring of cardiac physiological signals. The liquid-to-solid transformation concept, coupled with the design strategy for highly integrated and stable soft conductive materials, provides a basis for advancing conductive interface designs for high-fidelity signal acquisition. |
| format | Article |
| id | doaj-art-2c2e4b9e984e4e48a293e95192fe1a63 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-2c2e4b9e984e4e48a293e95192fe1a632025-01-05T12:37:46ZengNature PortfolioNature Communications2041-17232025-01-0116111510.1038/s41467-024-55417-1Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stressTian Li0Haobo Qi1Cancan Zhao2Zhenming Li3Wei Zhou4Guanjin Li5Hao Zhuo6Wei Zhai7Department of Mechanical Engineering, National University of SingaporeDepartment of Mechanical Engineering, National University of SingaporeDepartment of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of StomatologyDepartment of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of StomatologyDepartment of Mechanical Engineering, National University of SingaporeDepartment of Mechanical Engineering, National University of SingaporeDepartment of Mechanical Engineering, National University of SingaporeDepartment of Mechanical Engineering, National University of SingaporeAbstract Soft conductive gels are essential for epidermal electronics but often face challenges when interfacing with uneven surfaces or areas with extensive hair, especially under mechanical stress. In this study, we employed the concept of liquid-to-solid transformation to enhance integration at biointerfaces and designed an in-situ biogel capable of rapidly transitioning between liquid and solid states within 3 min via a temperature switch. The biogel features a semi-interpenetrating polymer network design and dual conduction pathways, resulting in high tensile strength (~1–3 MPa), a skin-compatible modulus (~0.3–1.1 MPa), strong skin adhesive strength (~1 MPa), and superior signal-to-noise ratio (SNR, ~30–40 dB). The biogel demonstrates significant performance in mechanically demanding environments, showing potential for accurately capturing outdoor exercise data, monitoring muscle recovery from sports-induced fatigue, and in vivo monitoring of cardiac physiological signals. The liquid-to-solid transformation concept, coupled with the design strategy for highly integrated and stable soft conductive materials, provides a basis for advancing conductive interface designs for high-fidelity signal acquisition.https://doi.org/10.1038/s41467-024-55417-1 |
| spellingShingle | Tian Li Haobo Qi Cancan Zhao Zhenming Li Wei Zhou Guanjin Li Hao Zhuo Wei Zhai Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress Nature Communications |
| title | Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress |
| title_full | Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress |
| title_fullStr | Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress |
| title_full_unstemmed | Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress |
| title_short | Robust skin-integrated conductive biogel for high-fidelity detection under mechanical stress |
| title_sort | robust skin integrated conductive biogel for high fidelity detection under mechanical stress |
| url | https://doi.org/10.1038/s41467-024-55417-1 |
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