Lab-on-a-chip paves way for Star Trek tricorder

A device that sorts cells using acoustic waves could lead to the creation of miniature medical analytic devices that fit in a pocket.

Invisibility cloak hides underwater objects from sonar

University of Illinois researchers have developed an acoustic cloak, making underwater objects invisible to sonar and other ultrasound waves.

MIT builds fibers that can hear and sing

MIT scientists have developed fibers that can detect and produce sound, and say they could be used to produce clothes that act as microphones.