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RIO DE JANEIRO, BRAZIL - A team of Brazilian researchers is developing an ultra-thin mask made of graphene oxide able to absorb - with 99.9 percent efficacy - microorganisms such as bacteria and viruses, including the novel coronavirus.

"It is a light and resilient nanomaterial," says Gabriel Estevam Domingos, research, development, and innovation director of the Ambipar environmental management group, which heads the study. "The goal is to provide greater comfort to users and allow better communication between people since the mask can be transparent and with a more discreet design".

The mask in development may have greater durability than the . . .

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