A Portable and Flexible Self-Powered Multifunctional Sensor for Real-Time Monitoring in Swimming

Biosensors

Xinxing Li¹  Yongsheng Zhu²  Meiyue Bian²  Tianming Zhao²  Baodan Liu²  Changjun Jia²  Yupeng Mao²  Yuanguo Liu³ 

[1] Health and Exercise Science Laboratory, Institute of Sport Science, Seoul National University, Seoul 08826, Korea;Physical Education Department, Northeastern University, Shenyang 110819, China;Sports Training Institute, Shenyang Sport University, Shenyang 110102, China;

关键词: biosensor;    ZnO NWs;    piezoelectric effect;    self-powered;    real-time monitoring;   

DOI  :  10.3390/bios11050147

来源: DOAJ

【 摘 要 】

A portable and flexible self-powered biosensor based on ZnO nanowire arrays (ZnO NWs) and flexible PET substrate has been designed and fabricated for real-time monitoring in swimming. Based on the piezoelectric effect of polar ZnO NWs, the fabricated biosensor can work in both air and water without any external power supply. In addition, the biosensor can be easily attached to the surface of the skin to precisely monitor the motion state such as joint moving angle and frequency during swimming. The constant output piezoelectric signal in different relative humidity levels enables actual application in different sports, including swimming. Therefore, the biosensor can be utilized to monitor swimming strokes by attaching it on the surface of the skin. Finally, a wireless transmitting application is demonstrated by implanting the biosensor in vivo to detect angiogenesis. This portable and flexible self-powered biosensor system exhibits broad application prospects in sport monitoring, human–computer interaction and wireless sport big data.

【 授权许可】

Unknown