Wearable medical electronics have played an essential role in remote health monitoring and disease diagnosis. However, a self-powered wearable patch that is capable of accelerating wound healing and suitable for directly affixing to the human body remains a challenge. In this work, we established a flexible stretchable sandwich-structured triboelectric patch, composed of double-layer polydimethylsiloxane (PDMS) membrane with a hydrogel embedded. The bottom layer is compounded with Ag NWs to enhance the electric field between the electronic patch and the body. The hydrogel acts as an ionically conductive and stretchable electrode that can transmit tribo charges to Ag NWs. It has been demonstrated that wound healing was promoted distinctly by the periodic contact and separation between the cloth and PDMS layer induced by biomechanical motions. This study presents a concrete and significant step of wearable medical electronics in practical applications.

可穿戴医疗电子产品在远程健康监测和疾病诊断中发挥了重要作用。然而，能够加速伤口愈合并适合直接贴在人体上的自供电可穿戴贴片仍然是一个挑战。在这项工作中，我们建立了一个灵活的可拉伸夹心结构摩擦电贴片，由双层聚二甲基硅氧烷 (PDMS) 膜和嵌入水凝胶的膜组成。底层与 Ag NW 复合以增强电子贴片和身体之间的电场。水凝胶充当离子导电和可拉伸的电极，可以将摩擦电荷传输到银纳米线。已经证明，生物力学运动引起的布料和 PDMS 层之间的周期性接触和分离明显促进了伤口愈合。