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Cellulose nanofiber-mediated manifold dynamic synergy enabling adhesive and photo-detachable hydrogel for self-powered E-skin

Author

Listed:
  • Lei Zhang

    (Chinese Academy of Forestry)

  • Lu Chen

    (Wuhan University)

  • Siheng Wang

    (Chinese Academy of Forestry
    Wuhan University)

  • Shanshan Wang

    (Nanjing Forestry University)

  • Dan Wang

    (Chinese Academy of Forestry)

  • Le Yu

    (Wuhan University)

  • Xu Xu

    (Nanjing Forestry University)

  • He Liu

    (Chinese Academy of Forestry)

  • Chaoji Chen

    (Wuhan University)

Abstract

Self-powered skin attachable and detachable electronics are under intense development to enable the internet of everything and everyone in new and useful ways. Existing on-demand separation strategies rely on complicated pretreatments and physical properties of the adherends, achieving detachable-on-demand in a facile, rapid, and universal way remains challenging. To overcome this challenge, an ingenious cellulose nanofiber-mediated manifold dynamic synergy strategy is developed to construct a supramolecular hydrogel with both reversible tough adhesion and easy photodetachment. The cellulose nanofiber-reinforced network and the coordination between Fe ions and polymer chains endow the dynamic reconfiguration of supramolecular networks and the adhesion behavior of the hydrogel. This strategy enables the simple and rapid fabrication of strong yet reversible hydrogels with tunable toughness ((Valuemax-Valuemin)/Valuemax of up to 86%), on-demand adhesion energy ((Valuemax-Valuemin)/Valuemax of up to 93%), and stable conductivity up to 12 mS cm−1. We further extend this strategy to fabricate different cellulose nanofiber/Fe3+-based hydrogels from various biomacromolecules and petroleum polymers, and shed light on exploration of fundamental dynamic supramolecular network reconfiguration. Simultaneously, we prepare an adhesive-detachable triboelectric nanogenerator as a human-machine interface for a self-powered wireless monitoring system based on this strategy, which can acquire the real-time, self-powered monitoring, and wireless whole-body movement signal, opening up possibilities for diversifying potential applications in electronic skins and intelligent devices.

Suggested Citation

  • Lei Zhang & Lu Chen & Siheng Wang & Shanshan Wang & Dan Wang & Le Yu & Xu Xu & He Liu & Chaoji Chen, 2024. "Cellulose nanofiber-mediated manifold dynamic synergy enabling adhesive and photo-detachable hydrogel for self-powered E-skin," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47986-y
    DOI: 10.1038/s41467-024-47986-y
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    References listed on IDEAS

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    1. Yang Zou & Puchuan Tan & Bojing Shi & Han Ouyang & Dongjie Jiang & Zhuo Liu & Hu Li & Min Yu & Chan Wang & Xuecheng Qu & Luming Zhao & Yubo Fan & Zhong Lin Wang & Zhou Li, 2019. "A bionic stretchable nanogenerator for underwater sensing and energy harvesting," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
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