Robot uses UV light to kill coronavirus by rupturing its DNA

It has long been known that UV light has a sterilising effect because the radiation damages the genetic material of viruses and their ability to replicate. Most viruses - such as SARS-CoV-2 - are covered with a thin membrane that is easily broken apart by UV rays. Paul Hunter, a professor in medicine at University of East Anglia said: 'That UV light inactivates SARS-CoV-2 is not surprising. Indeed UV disinfection is widely used for disinfection of drinking water. 'Given the nature of coronaviruses we would expect them to be especially sensitive to disinfection by either hypochlorite (bleach) or UV light.'