Self‐Powered Wearable Piezoelectric Monitoring of Human Motion and Physiological Signals for the Postpandemic Era: A Review

Advanced Materials Technologies - Tập 7 Số 12 - 2022
Yinli Wang1,2, Yaonan Yu3, Xueyong Wei4, Fumio Narita3
1Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
2Division for Interdisciplinary Advanced Research and Education, Tohoku University, Sendai, 980-8578 Japan
3Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
4State Key Laboratory for Manufacturing Systems Engineering, Xian Jiaotong University, 28 West Xianning Road, Xian 710049, China

Tóm tắt

AbstractAs society advances, the shift from passive medical care to health management and preventive medical care has become an important issue, with the realization of wearable monitors becoming desirable. In light of the COVID‐19 pandemic, the number of patients who are in urgent need of the monitoring of biological information is increasing. This review focuses on piezoelectric materials and composites that convert kinetic energy into electrical energy to realize self‐powered wearable monitoring sensors, outlining the recent research activity on sensors for use in healthcare monitoring. First, a general description of the principles of piezoelectric monitoring sensors is given. Next, the development status of piezoelectric materials and composites aimed at the application of detecting tiny motions of the human body is introduced, and then the research trends on the detection of larger human body movements are highlighted. Finally, after presenting the performance of current piezoelectric sensors and future research guidelines for developing multifunctional systems in the post COVID‐19 era, the achievements are summarized. Overall, this review will provide guidance to researchers who are seeking to design and develop highly sensitive self‐powered piezoelectric sensors that monitor human motion and physiological signals.

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