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A personal protection equipment (PPE) mask made from a membrane of titanium oxide nanowires could provide a safe and environmentally sound alternative to disposable paper masks that trap pathogens but do not destroy them. Developed by researchers at École Polytechnique Fédérale de Lausanne (EPFL), the membrane for the new mask prototype is similar in appearance to filter paper, but with antipathogen properties. It uses the photocatalytic properties of titanium dioxide to kill viruses and bacteria.
When exposed to ultraviolet radiation, the fibers in the titanate nanowire membrane convert resident moisture into oxidizing agents such as hydrogen peroxide, which have the ability to destroy pathogens. “Since…READ MORE