Yu, X., Teng, C. P., Yeo, J. C. C., Fan, X., Fan, X., Liu, T., & Li, Z. (2025). Multifunctional Recyclable Electronic Skins Enabled by Hierarchical Dynamic Network Structures. Advanced Functional Materials. Portico. https://doi.org/10.1002/adfm.202501677
Abstract:
Inspired by the sensory functions of the human skin, the development of electronic skins (e‐skins) has garnered significant attention. Ionogels, as an emerging class of soft materials, show promise in serving as e‐skins. The pursuit of a sustainable society motivates the development of recyclable ionogels, typically achieved by introducing dynamic non‐covalent bonds. However, these current state‐of‐the‐art methods often result in poor elasticity or strain softening, which significantly limits their suitability for e‐skin applications. This study introduces a multifunctional and recyclable e‐skin based on a hierarchical dynamic double‐network ionogel that integrates dynamic covalent bonds and non‐covalent interactions. This ionogel seamlessly integrates key functions of human skin, including strain‐stiffening capability, self‐healing ability within 12 h, rapid response time (120 ms), and high elasticity (energy loss coefficient of 0.07 at 150% strain), all within a single material. The dynamic covalent bonds enhance cohesive energy, ensuring high elasticity, while the non‐covalent bonds improve adhesive properties. As a proof of concept, the ionogel can be fabricated into a strain‐temperature dual‐modal e‐skin, exhibiting high sensitivity, reliability, and state‐independent performance. This advancement highlights the potential of ionogels in the development of next‐generation recyclable wearable electronic devices.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - RIE2025 Manufacturing, Trade and Connectivity (MTC) Programmatic Funding
Grant Reference no. : M22K9b0049
This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - RIE2025 Manufacturing, Trade and Connectivity (MTC) Programmatic Funding - MedTech Thematic Grant
Grant Reference no. : M24N9b0126
Description:
This is the peer reviewed version of the following article: Yu, X., Teng, C. P., Yeo, J. C. C., Fan, X., Fan, X., Liu, T., & Li, Z. (2025). Multifunctional Recyclable Electronic Skins Enabled by Hierarchical Dynamic Network Structures. Advanced Functional Materials. Portico. https://doi.org/10.1002/adfm.202501677, which has been published in final form at https://doi.org/10.1002/adfm.202501677. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.