期刊
NANO ENERGY
卷 92, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106715
关键词
triboelectric nanogenerator; liquid metal; multi-mode; wearable; self-powered
类别
资金
- Beijing Natural Science Foundation [JQ20038]
- National Natural Science Foundation of China [T2125003, 82102231, 61875015, 82071970, 82072506, 51890893]
- China Postdoctoral Science Foun-dation [2020M680302, 2021T140041]
- Fundamental Research Founds for the Central University of Beihang University [JKF-YG-21-B001]
- Innovation Research Project of Jianghan University [2021kjzx008]
The study introduces a multi-mode stretchable and wearable triboelectric nanogenerator for biomechanical energy harvesting and physiological functions sensing. This device can convert the energy of limb movement into electricity while monitoring arterial pulse signals, joint bending angles, and limb stability in real time, showing great potential for applications in exercise monitoring and rehabilitation therapy.
In the field of exercise physiology, it is of great significance to monitor human body motion status and physiological functions for assessing physical quality and training load. However, the wearable electronics as the mainstream monitoring solution have power consumption and bulk-size issues that limit sustainable operation. Here, we present a multi-mode stretchable and wearable triboelectric nanogenerator (msw-TENG) for biomechanical energy harvesting and physiological functions sensing. The msw-TENG fabricated by a liquid metal and silicone achieves stretchable and highly conductive characteristics at the same time, and realizes conformal contact with skin. The msw-TENG mainly includes contact separation/stretch/press modes, which can be randomly transformed according to the actual applications. The device converts the biomechanical energy of limb movement into electrical energy for directly lighting up commercial LEDs. Additionally, the radial artery pulse signal, joint bending angle and limb stability can be detected in real-time. As a multifunctional biomedical active sensor that is exempt from needing an extra power source, the proposed msw-TENG holds great potentials in the future of exercise monitoring and rehabilitation therapy.
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