Fig. 35.

Argon gas-based plasma discharge disinfecting SARS-CoV-2: a Argon plasma treatment of a plastic surface and the optical emission spectra of ROS and RNS (exposure: 250 ms), and b the bright-field image of Vero-E6 cells infected with SARS-CoV-2 showing the viral cytopathic effect (CPE). Control of uninfected cells was included in the experiment. c Titre response on SARS-CoV-2 to plasma treatment exposures of 0, 30, 60, and 180 s on surfaces of metal, cardboard, plastic, football leather, composite, baseball leather and basketball leather. The distance between the object surface and the plasma device was ∼15 mm [35]