Body-area sensor network featuring micropyramids for sports healthcare  

作　　者：Shenglong Wang Weili Deng Tao Yang Guo Tian Da Xiong Xiao Xiao Hongrui Zhang Yue Sun Yong Ao Junfeng Huang Jun Chen Weiqing Yang 

机构地区：[1]Key Laboratory of Advanced Technologies of Materials(Ministry of Education),School of Materials Science and Engineering,Southwest Jiao tong University,Chengdu 610031,China [2]Department of Bioengineering,University of California,Los Angeles,Los Angeles,CA 90095,USA

出　　处：《Nano Research》2023年第1期1330-1337,共8页纳米研究（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China(No.61801403);the Sichuan province Foundation for Distinguished Young Team(No.20CXTD0106);the Basic Research Cultivation Project(No.2682021ZTPY004).

摘　　要：Monitoring physiological signals of the human body can provide extremely important information for sports healthcare,preventing injuries and providing efficient guidance for individual sports.However,the signals related to human healthcare involve both subtle and vigorous signals,making it difficult for a sensor to satisfy the full-scale monitoring at the same time.Here,a novel conductive elastomer featuring homogeneously micropyramid-structured PDMS/CNT composite is used to fabricate highperformance piezoresistive sensors by a drop-casting method.Benefiting from the significant increase in the contact area of microstructure during deformation,the flexible sensor presents a broad detection range(up to 185.5 kPa),fast response/recovery time(44/13 ms),ultrahigh sensitivity(242.4 kPa–1)and excellent durability over 8,000 cycles.As a proof of concept,the as-fabricated pressure sensor can be used for body-area sports healthcare,and enable the detection of full-scale pressure distribution.Considering the fabulous sensing performance,the sensor may potentially become promising in personal sports healthcare and telemedicine monitoring.

关 键 词：pressure sensor pyramidal microstructure sports healthcare sensor network broad detection range high sensitivity 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]