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Wirz / UCLA Research Group
The cold atmospheric plasma device that treats metal samples. The bluish glow is caused by the presence of excited air molecules.
UCLA engineers and scientists have shown that cold atmospheric plasma treatments at room temperature can kill the coronavirus present on a variety of surfaces in just 30 seconds.
Their study, published in the journal Physics of Fluids, marks the first time that cold plasma has been shown to effectively and quickly disinfect surfaces contaminated with the SARS-CoV-2 virus that causes COVID-19. The new coronavirus can remain infectious for tens of hours on surfaces.
“This is a very exciting result, showing the potential of cold atmospheric plasma as a safe and effective way to combat the transmission of the virus by killing it over a wide range of surfaces,” said Richard Wirz, professor of mechanical and aerospace engineering at the UCLA Samueli School of Engineering and leader of the study.
Plasma, not to be confused with blood plasma, is an electrically charged gas known as the fourth state of matter (solid, liquid and gas are the others), with electrons and charged ions being its main composition.
Read the full press release.
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