Dropping your phone down the toilet may never be a problem again.
Researchers have developed a new way of waterproofing electronic components that means they can be immersed in water for days without being damaged.
The technique coats components with a protective layer just a few atoms thick that is impervious to air or water.
They claim devices treated in this way can be left submerged in salt water for months without being harmed – conditions that would destroy normal electronics.
