Medicine and Health

Self-rechargeable cardiac pacemaker system with triboelectric nanogenerators

H. Ryu, H. Park, et al.

Discover the groundbreaking research conducted by Hanjun Ryu and colleagues on a self-powered, coin battery-sized triboelectric nanogenerator that harnesses body motion for sustainable energy. This innovative device has shown promising results for longer-lasting, self-rechargeable implantable medical devices, paving the way for advancements in cardiac care.

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Abstract

Self-powered implantable devices have the potential to extend device operation time inside the body and reduce the necessity for high-risk repeated surgery. This research presents a coin battery-sized, high-performance inertia-driven triboelectric nanogenerator (I-TENG) powered by body motion and gravity. The five-stacked I-TENG converts mechanical energy into electricity at 4.9 µW/cm³ (RMS output). Preclinical testing showed successful energy harvesting and lithium-ion battery charging. Integration with a cardiac pacemaker demonstrated successful ventricle pacing and sensing, suggesting the potential for self-rechargeable implantable medical devices.

Publisher

Nature Communications

Published On

Jul 16, 2021

Authors

Hanjun Ryu, Hyun-moon Park, Moo-Kang Kim, Bosung Kim, Hyoun Seok Myoung, Tae Yun Kim, Hong-Joon Yoon, Sung Soo Kwak, Jihye Kim, Tae Ho Hwang, Eue-Keun Choi, Sang-Woo Kim

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