Self-compliant ionic skin by leveraging hierarchical hydrogen bond association
Abstract Robust interfacial compliance is essential for long-term physiological monitoring via skin-mountable ionic materials. Unfortunately, existing epidermal ionic skins are not compliant and durable enough to accommodate the time-varying deformations of convoluted skin surface, due to an imbalan...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-45079-4 |
| _version_ | 1827326909254467584 |
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| author | Huating Ye Baohu Wu Shengtong Sun Peiyi Wu |
| author_facet | Huating Ye Baohu Wu Shengtong Sun Peiyi Wu |
| author_sort | Huating Ye |
| collection | DOAJ |
| description | Abstract Robust interfacial compliance is essential for long-term physiological monitoring via skin-mountable ionic materials. Unfortunately, existing epidermal ionic skins are not compliant and durable enough to accommodate the time-varying deformations of convoluted skin surface, due to an imbalance in viscosity and elasticity. Here we introduce a self-compliant ionic skin that consistently works at the critical gel point state with almost equal viscosity and elasticity over a super-wide frequency range. The material is designed by leveraging hierarchical hydrogen bond association, allowing for the continuous release of polymer strands to create topological entanglements as complementary crosslinks. By embodying properties of rapid stress relaxation, softness, ionic conductivity, self-healability, flaw-insensitivity, self-adhesion, and water-resistance, this ionic skin fosters excellent interfacial compliance with cyclically deforming substrates, and facilitates the acquisition of high-fidelity electrophysiological signals with alleviated motion artifacts. The presented strategy is generalizable and could expand the applicability of epidermal ionic skins to more complex service conditions. |
| first_indexed | 2024-03-07T14:52:19Z |
| format | Article |
| id | doaj.art-2b33249b65ec4d44acab7bdd3eeffd97 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:52:19Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-2b33249b65ec4d44acab7bdd3eeffd972024-03-05T19:36:40ZengNature PortfolioNature Communications2041-17232024-01-0115111210.1038/s41467-024-45079-4Self-compliant ionic skin by leveraging hierarchical hydrogen bond associationHuating Ye0Baohu Wu1Shengtong Sun2Peiyi Wu3State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua UniversityJülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum JülichState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua UniversityState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua UniversityAbstract Robust interfacial compliance is essential for long-term physiological monitoring via skin-mountable ionic materials. Unfortunately, existing epidermal ionic skins are not compliant and durable enough to accommodate the time-varying deformations of convoluted skin surface, due to an imbalance in viscosity and elasticity. Here we introduce a self-compliant ionic skin that consistently works at the critical gel point state with almost equal viscosity and elasticity over a super-wide frequency range. The material is designed by leveraging hierarchical hydrogen bond association, allowing for the continuous release of polymer strands to create topological entanglements as complementary crosslinks. By embodying properties of rapid stress relaxation, softness, ionic conductivity, self-healability, flaw-insensitivity, self-adhesion, and water-resistance, this ionic skin fosters excellent interfacial compliance with cyclically deforming substrates, and facilitates the acquisition of high-fidelity electrophysiological signals with alleviated motion artifacts. The presented strategy is generalizable and could expand the applicability of epidermal ionic skins to more complex service conditions.https://doi.org/10.1038/s41467-024-45079-4 |
| spellingShingle | Huating Ye Baohu Wu Shengtong Sun Peiyi Wu Self-compliant ionic skin by leveraging hierarchical hydrogen bond association Nature Communications |
| title | Self-compliant ionic skin by leveraging hierarchical hydrogen bond association |
| title_full | Self-compliant ionic skin by leveraging hierarchical hydrogen bond association |
| title_fullStr | Self-compliant ionic skin by leveraging hierarchical hydrogen bond association |
| title_full_unstemmed | Self-compliant ionic skin by leveraging hierarchical hydrogen bond association |
| title_short | Self-compliant ionic skin by leveraging hierarchical hydrogen bond association |
| title_sort | self compliant ionic skin by leveraging hierarchical hydrogen bond association |
| url | https://doi.org/10.1038/s41467-024-45079-4 |
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