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Student innovators build a pocket-sized pen-drive sanitizer that disinfects surfaces in 3 seconds

The Optimist Citizen reports a pen-drive device, called UV Astra, emits a combination of UVA and UVC lights to quickly disinfect surfaces when attached to a mobile phone. The device is an instant and handy solution to sanitise belongings when we go out. Being wary of the surfaces we touch is the new normal. A…

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