Nanogenerators for self-powered wearable devices

Over the past few decades, researchers have developed a diverse array of nanogenerators capable of converting ambient mechanical energy—such as breezes, body movements, or even subtle breathing—into electrical power. This technology not only reduces reliance on conventional batteries but also enables the development of lightweight, flexible, and eco-friendly wearable devices. In this Voices article, we gather insights from a global panel of experts to explore the latest breakthroughs and remaining challenges in this rapidly evolving field.