A new type of face mask has been developed by scientists at Northwestern University that could help to reduce the spread of COVID-19. The mask is treated with antiviral substances, including phosphoric acid and copper salts, which are released when the wearer exhales. These substances are believed to be effective in killing the SARS-CoV-2 virus, which causes COVID-19. The mask is made from layers of fabric treated with polyaniline, which allows for a loose binding with the antiviral substances. The substances are not released when the wearer inhales, but are activated by the warm, moist air exhaled by the wearer.
The mask has been tested in laboratory experiments using a commercially available mask treated with a cotton cloth containing the antiviral substances. The experiments showed that 49% of the droplets released when exhaling contained both acid and copper ions. However, further testing is needed to determine whether the mask is effective in reducing the risk of infection. If the mask is found to be effective, it could be particularly useful in reducing the spread of the virus by people who are asymptomatic.
The development of this new type of mask is an important step in the fight against COVID-19. While masks made from fabric or paper are effective in reducing the spread of the virus, the addition of antiviral substances could provide an extra layer of protection. The mask is also easy to produce and could be made widely available to the public. However, further testing is needed to determine whether the mask is effective in reducing the risk of infection.
