Brazilian researchers have developed a cloth with silver particles that can inactivate more than 99 percent of the virus after two minutes of exposure to the new coronavirus, according to Brazilian media reports. The researchers believe the fabric can be used to make masks and protective clothing.
The study was carried out by the Institute of Biomedical Sciences of the University of Sao Paulo, Brazil, a start-up and others. It is reported that the fabric is made up of polyester cotton and silver particles. To test the effectiveness of its inactivated virus, the researchers put cells carrying a large number of neo-coronaviruses into the test tube and then put the cloth in the test tube. The experiment was conducted twice, one by placing the cloth in a test tube for two minutes and the other for five minutes, both of which inactivated 99.9 per cent of the new crown virus.
“The concentration of the new coronavirus in the test tube was much greater than the concentration of the new coronavirus that the mask could come into contact with. Despite this, the material is still efficient lying inthetre the new crown virus. Lucio Freitas, a researcher at the Institute of Biomedical Sciences at the University of Sao Paulo, said.
In the past, researchers have known that metal particles such as silver have a certain antibacterial effect. Currently, researchers are evaluating the durability of the cloth’s anti-neo-coronavirus effect.
Data released by Brazil’s Ministry of Health on the 17th showed that in the past day, Brazil added 32,188 new confirmed cases of new crown confirmed 955,377 cases;