Zapping tiny metal drops with sound creates wires for soft electronics

A new way to make stretchy wiring uses ultrasound and microscopic spheres of liquid metal

A microscope image of the nanoscopic balls on a black background

Exposure to ultrasound creates nanoscopic balls nestled among larger microspheres of liquid metal (shown in this scanning electron microscope image) in a new approach to stretchy wiring.

Wonbeom Lee/Korea Advanced Institute of Science and Technology

Zapping liquid metal droplets with ultrasound offers a new way to make wiring for stretchy, bendy electronics.