Wrinkled and Fibrous Conductive Bandages with Tunable Mechanoelectrical Response Toward Wearable Strain Sensors  

作　　者：Xin Xu Yang Liu Hongwei Zhou Zhong Li Ruhai Wang Birui Jin Hao Liu Qianqian Fan Yunsheng Fang Na Liu Dong Wang Feng Xu Guoxu Zhao 

机构地区：[1]State Key Laboratory of Digital Medical Engineering,Key Laboratory of Biomedical Engineering of Hainan Province,School of Biomedical Engineering,Hainan University,Haikou 570228,Hainan,China [2]School of Material Science and Chemical Engineering,Xi'an Technological University,Xi'an 710021,Shaanxi,China [3]The Key Laboratory of Biomedical Information Engineering of Ministry of Education,School of Life Science and Technology,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China [4]Bioinspired Engineering&Biomechanics Center(BEBC),Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China [5]Department of Gastroenterology,Hainan General Hospital,Hainan Affiliated Hospital of Hainan Medical University,Haikou 570311,Hainan,China [6]Rehabilitation Medicine Department,Haikou People’s Hospital,Haikou Affiliated Hospital of Central South University Xiangya School of Medicine,Haikou 570208,Hainan,China

出　　处：《Advanced Fiber Materials》2024年第4期1174-1187,共14页先进纤维材料（英文）

基　　金：supported by the National Natural Science Foundation of China(61904143,12225208,32260244);Hainan Provincial Natural Science Foundation of China(524YXQN416,824CXTD424);Science and Technology Special Fund of Hainan Province(ZDYF2022SHFZ289).

摘　　要：Wearable strain sensors(WSSs)have found widespread applications,where the key is to optimize their sensing and wearing performances.However,the intricate material designs for developing WSSs often rely on costly reagents and/or complex pro-cesses,which bring barriers to their large-scale production and use.Herein,a facile and affordable(material cost of<$0.002/cm2)method is presented for fabricating conductive bandage(CB)-based WSSs by electrospraying a carbon nanotube(CNT)layer on commercial self-adhesive bandages with excellent biosafety,stretchability,mechanical compliance,breathability and cost effectiveness.The wrinkled and fibrous structures of self-adhesive bandages were rationally leverage to control the geometry of CNT layer,thereby ensuring tunable mechanoelectrical sensitivities(gauge factors of 2~850)of CBs.Moreover,a strain-sensing mechanism directly mediated by the highly wrinkled microstructure is unveiled,which can work in synergy with a training-loosened-fibrous microstructure.The excellent performance of CBs for monitoring full-range strain signals in human bodies was further demonstrated.CBs would possess great potential for being developed into WSSs because of their outstanding cost-performance ratio.

关 键 词：Flexible electronics Carbon nanotubes Nonwoven fabrics WRINKLES Strain sensors 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]