UV light is used at hospitals for sanitization. More hospitals are now relying on robots to take on this task. Akara Robotics has turned the TurtleBot 2 into a UV disinfecting robot. It can go from room to room and rotate to cover every area, without putting humans in danger.
The TurtleBot 2 is an open platform, so it is easier to use for such a task. The above video shows this UV robot in action.