Powering the nanoworld
August 30, 2007 | Source: Technology Review
Georgia Tech researchers have created a device that converts ultrasonic vibrations into electricity.
The two-square-millimeter device .5 nanoamperes of current, which engineers may one day be able use to power implantable biosensors, remote environmental monitors, and more. Four watts per cubic centimeter is possible, allowing for power portable electronics such as cell phones.