Coronavirus: IIT-Guwahati Researchers Develop Low-Cost Anti-Microbial Spray-Based Coating For PPE - The strategic association of metal nanoparticle cocktail, such as copper, silver and other active ingredients, present in the spray acts as an antimicrobial agent. https://swarajyamag.com/insta/coronavirus-iit...ng-for-ppe via @SwarajyaMag