What new Internet of Things device could someday keep the roads safer?

A flexible, wearable sensor developed by researchers at the University of California, San Diego, can accurately detect the wearer’s blood-alcohol level and wirelessly transmit that results to a laptop. Such a device could provide a real-time, non-invasive way to monitor the blood alcohol level of certain people under the watch of doctors or police.

"Lots of accidents on the road are caused by drunk driving," said nanoengineering professor Joseph Wang. "This technology provides an accurate, convenient and quick way to monitor alcohol consumption to help prevent people from driving while intoxicated."

The device could also be built into a car's ignition, or friends could use it to check up on one another before handing over the car keys.