Journal
RESEARCH
Volume 2022, Issue -, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.34133/2022/9814767
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Funding
- National Natural Science Foundation of China [32171720]
- China National Science Fund for Distinguished Young Scholars [31925028]
- Natural Science Foundation of Liaoning Province, P. R. China [2020-BS-171]
- Foundation of Tianjin Key Laboratory of Pulp & Paper (Tianjin University of Science & Technology), P. R. China [202101]
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This study reports a one-step strategy for the production of an e-skin with scalable mode, using a thermionic source to molecularize bacterial cellulose polymeric fibers. The resulting ionogel exhibits robust tensile strength and high ionic conductivity, and can respond to various stimuli such as pressure, touch, temperature, humidity, magnetic force, and astringency. This simple, efficient, controllable, and sustainable low-carbon design approach shows great potential for various applications.
Electronic skin (e-skin), a new generation of flexible electronics, has drawn interest in soft robotics, artificial intelligence, and biomedical devices. However, most existing e-skins involve complex preparation procedures and are characterized by singlesensing capability and insufficient scalability. Here, we report on a one-step strategy in which a thermionic source is used for the in situ molecularization of bacterial cellulose polymeric fibers into molecular chains, controllably constructing an ionogel with a scalable mode for e-skin. The synergistic effect of a molecular-scale hydrogen bond interweaving network and a nanoscale fiber skeleton confers a robust tensile strength (up to 7.8 MPa) and high ionic conductivity (up to 62.58 mS/cm) on the as-developed ionogel. Inspired by the tongue to engineer the perceptual patterns in this ionogel, we present a smart e-skin with the perfect combination of excellent ion transport and discriminability, showing six stimulating responses to pressure, touch, temperature, humidity, magnetic force, and even astringency. This study proposes a simple, efficient, controllable, and sustainable approach toward a low-carbon, versatile, and scalable e-skin design and structure???performance development.
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