3D-Printed Bionic Ear Can Hear Beyond Human Ability

Scientists at Princeton University have designed a bionic ear that can hear better than human ears. And get this: It was printed using an off-the-shelf 3D printer. We’ve heard of 3D printers someday building human organs before, but what’s noteworthy about this project is this printed ear intertwines embedded electronics. These Princeton researchers basically 3D-printed cells and nanoparticles,…