University of Technology, Jamaica student Rayvon Stewart invented a device called XERMOSOL that kills viral cells using ultraviolet light. The XERMOSOL device can be attached to doorknobs in heavily trafficked public spaces, such as schools or hospitals, to provide quick and lasting protection from coronavirus, which can live on stainless steel and metal surfaces for up to three days. Tests have shown the technology is effective at killing more than 99.9% of deadly pathogens, and has been hailed by Commonwealth Secretary-General Patricia Scotland as a potentially crucial weapon in the fight to contain the spread of the virus.

Listen to the BBC interview of Stewart discussing his invention: