A 3D cross-linked hierarchical hydrogel E-skin with sensing of touch position and pressure

作者全名："Shi, Xuewei; Lee, Alamusi; Yang, Bo; Gao, Lingxiao; Ning, Huiming; Huang, Kaiyan; Luo, Xiaolin; Zhang, Lidan; Zhang, Jiaofei; Yang, Chao; Gu, Bin; Hu, Ning"

作者地址："[Shi, Xuewei; Lee, Alamusi; Yang, Bo; Gao, Lingxiao; Huang, Kaiyan; Zhang, Jiaofei; Yang, Chao; Hu, Ning] Hebei Univ Technol, Sch Mech Engn, Tianjin 300401, Peoples R China; [Ning, Huiming] Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China; [Luo, Xiaolin] Tianjin Univ Tradit Chinese Med, Teaching Hosp 1, Natl Clin Res Ctr Chinese Med Acupuncture & Moxibu, Tianjin 300381, Peoples R China; [Zhang, Lidan] Chongqing Med Univ, Sch Basic Med, Chongqing 400042, Peoples R China; [Gu, Bin] Southwest Univ Sci & Technol, Sch Mfg Sci & Engn, 59 Qinglong Rd, Mianyang 621010, Peoples R China; [Hu, Ning] Hebei Univ Technol, State Key Lab Reliabil & Intelligence Elect Equipm, Tianjin 300130, Peoples R China; [Hu, Ning] Hebei Univ Technol, Key Lab Adv Intelligent Protect Equipment Technol, Minist Educ, Tianjin 300401, Peoples R China"

通信作者："Lee, A; Hu, N (通讯作者)，Hebei Univ Technol, Sch Mech Engn, Tianjin 300401, Peoples R China.; Ning, HM (通讯作者)，Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China."

来源：CARBON

ESI学科分类：CHEMISTRY

WOS号：WOS:001094439500001

JCR分区：Q1

影响因子：10.9

年份：2024

卷号：216

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：Electronic skin; Hydrogel; Multi-model sensing

摘要："Artificial hydrogel electronic skin (E-skin) sensing systems have received considerable attention due to their ability in providing tactile perception. Recent advancements in hydrogel E-skin have allowed for simultaneous sensing of touch position and pressure through construction of sensor arrays. However, the fabrication process is complex, and the sensing resolution is limited by the size and number of array cells. Here, we report a multi-modal sensory E-skin based on a polyvinyl alcohol (PVA) hydrogel embedded with carbon nano-materials, which can recognize touch position and pressure simultaneously without constructing arrays. Combining the advantages of high electron transfer efficiency of 1D nanotube and 2D graphene nanosheet, the 3D hierarchical cross-linked polydopamine (PDA) modified reduced graphene oxide (rGO)/carboxylic multiwalled carbon nanotube (MWCNT-COOH) composites were proposed as a conductive filler, which was added by nano-doping to hydrogel substrate to gain an elastic modulus and stretchability of the hydrogel similar to that of human skin. Meanwhile, a surface-capacitive touch (SCT) system and piezoresistive technology were adopted to sense touch position and pressure due to the stability of conductive networks and the piezoresistive properties of carbon nanomaterials. Our E-skin device demonstrates superior sensing performance and provides a new direction for designing novel E-skin sensor devices."

基金机构："Chinese National Natural Science Fund [12227801, 32300666]; National Key Research and Development Program of China [2019YFC0840709]; Fund for Innovative Research Groups of Natural Science Foundation of Hebei Province [A2020202002]; Key Program of Research and Development of Hebei Province [202030507040009]; Natural Science Foundation of Chongqing [cstc2021jcyj-msxmX0241, cstb2023nscq-msx0303]; Xinjiang Production and Construction Corps Regional Innovation Guidance Program [2022BB004]; Hebei Province Military-civilian Integration Science and Technology Innovation Project [SJMYF2022X15]; Post-graduate's Innovation Fund Project of Hebei Province [CXZZBS2023035]"

基金资助正文："This work was supported by the Chinese National Natural Science Fund (Grant No.: 12227801, 32300666) , National Key Research and Development Program of China (2019YFC0840709) , the Fund for Innovative Research Groups of Natural Science Foundation of Hebei Province (A2020202002) , the Key Program of Research and Development of Hebei Province (202030507040009) , Natural Science Foundation of Chongqing (cstc2021jcyj-msxmX0241, cstb2023nscq-msx0303) , Xinjiang Production and Construction Corps Regional Innovation Guidance Program (2022BB004) , Hebei Province Military-civilian Integration Science and Technology Innovation Project (SJMYF2022X15) , and Post-graduate's Innovation Fund Project of Hebei Province (CXZZBS2023035) ."