Pacemakers and other medical devices, as well as long-distance drones and remote sensors, would require fewer battery replacements.

The device uses light and a technique called optogenetics, which modifies cells that are sensitive to light to affect their behavior.

In a new study, University of Chicago scientists find that holes can also improve technology, including medical devices.

A revolutionary pacemaker that re-establishes the heart’s naturally irregular beat is set to be trialled in heart patients this year.