Health
Plasma jets may kill new coronaviruses on the surface within seconds
In a modeling study conducted in June, published in the journal Physics of Fluids, a new strain of coronavirus on the surface of metals, leather, plastics, etc. was killed in cold atmospheric plasma supplied with argon in just 30 seconds. It was shown that it was done.
Researchers at the University of California, Los Angeles (UCLA) in the United States used an atmospheric pressure plasma jet built with a 3D printer to spray on surfaces treated with SARS-CoV-2 cultures.
The surface contained plastic, metal, cardboard, basketball, soccer and baseball leather.
A spray using an argon-fed plasma killed all the coronaviruses on the six surfaces within 3 minutes, and most of the viruses were destroyed after 30 seconds.
Additional tests showed that the virus was destroyed with cotton from the face mask at similar times.
The new coronavirus can continue to infect the surface for several hours. The author of the study, Richard E. According to Wirz, the findings show great potential for using plasma to stop the viral infection cycle.
“This is just the beginning. We are very confident and have very high expectations for plasma in future research. In the future, many answers to the scientific community will come from plasma. “Wirz said.
A relatively new technology, cold atmospheric plasma, is an ionized gas near room temperature that has proven to be effective in cancer treatment, wound healing, dentistry, and other medical applications.
Researchers performed a similar coronavirus test using helium-supplied plasma, but helium was ineffective after treatment for up to 5 minutes.
They believe this is due to the lower proportion of reactive oxygen species and reactive nitrogen when using a helium-supplied gas compared to argon.
Researchers said they are building a compact device that can be widely used to treat the surface of the coronavirus with plasma.
They said it was a safer and healthier option than chemicals and other treatments. SAR SAR
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