Durable triboelectric nanogenerator on coiled head of acupuncture needle

Integrating traditional Chinese medicine (TCM) techniques with modern technologies has paved the way for innovative advancements in various fields. In this research, we explore the fascinating fusion of acupuncture, a well-established TCM practice, with the triboelectric nanogenerators (TENG), an emerging energy harvesting technology. We present a groundbreaking approach where the coiled head of acupuncture needles is transformed into a multifunctional sensor capable of harnessing mechanical energy through the triboelectric effect. Our approach entails designing and fabricating a TENG sensor on the coiled head of an acupuncture needle. A triboelectric layer of polydimethylsiloxane (PDMS) infused with 2% multi-walled carbon nanotubes (MWCNTs), an insulating layer, and a copper conductive layer comprise the sensor. This integration allows mechanical energy generated during the acupuncture process to be converted into electrical energy for direct application in electroacupuncture. The sensor is highly compressible, durable, and sensitive to mechanical stimuli. Through meticulous experimentation, we demonstrate the mechanical stimulation triggers the TENG sensor to generate electrical power, thus allowing for self-powered electroacupuncture systems. We have also demonstrated the real time mimicking to acupuncture data to show the sensors’ adaptability. This dual functionality may enhance the therapeutic effects of electroacupuncture while also providing self-sustaining energy for the treatment process. This research bridges the ancient wisdom of TCM with the latest innovations in energy harvesting, opening new avenues for interdisciplinary collaborations between traditional practices and modern technologies. © 2024 Elsevier Ltd. All rights reserved.