Scientists have long known that ultraviolet light can kill pathogens on surfaces and in air and water. UV robots are used to disinfect empty hospital rooms, buses and trains; UV bulbs in HVAC systems ...

As businesses reopen, some look for innovative ways to keep surfaces clean. For guests checking into a high-profile California hotel, they might be staying in rooms that have been sanitized in part by ...

Karl Linden advises various companies promoting the use of UV light for disinfection. He receives funding from federal agencies and industry to conduct research in his role as a professor at the ...