文献类型：期刊文献

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

作者：Zhang, Lei[1] Chen, Lu[2] Wang, Siheng[1,2] Wang, Shanshan[3] Wang, Dan[1] Yu, Le[2] Xu, Xu[3] Liu, He[1] Chen, Chaoji[2]

通信作者：Liu, H[1];Chen, CJ[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Key Lab Biomass Energy & Mat, Nanjing 210042, Peoples R China;[2]Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China;[3]Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210037, Peoples R China

年份：2024

卷号：15

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;Scopus(收录号：2-s2.0-85192347868);WOS:【SCI-EXPANDED(收录号:WOS:001216484200012)】；

基金：This research was undertaken, in part, thanks to funding from the National Natural Science Foundation of China (Grant No. 31890774) to H.L., the Forestry Science and Technology Innovation and Extension Project of Jiangsu Province (No. LYKJ[2021]04) to H.L., the National Natural Science Foundation of China (Grant No. 52273091) and the Fundamental Research Funds for the Central Universities (Grant No. 691000003) to C.C.

语种：英文

摘要：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 ((Value max -Value min )/Value max of up to 86%), on-demand adhesion energy ((Value max -Value min )/Value max 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. Certain devices require rapid adhesion and detachment, but achieving both can be challenging. Here, the authors report the development of a supramolecular hydrogel with reversible tough adhesion and triggered photodetachment.