![Yipu Du (left) and Yanliang Zhang](https://ame.nd.edu/wp-content/uploads/2021/10/yanliang-zhang-960x533.jpg)
A new 3D printing frontier: self-powered wearable devices
When most people think of wearable devices, they think of smart watches, smart glasses, fitness trackers, even smart clothing. These devices, part of a fast-growing market, have two things in common: They all need an external power source, and they all require exacting manufacturing processes. …