Abstract
This study presents research related to the antiviral activity of painted surfaces containing galvanic microcells of zinc and copper. The aim of this study was to investigate the virucidal activity of galvanic microcells of zinc and copper grains fixed with adequate homogeneity and degree of aggregation in water-based acrylic paint layers in reference to a non-treated reference control. This paper provides evidence that a paint coating with a total copper surface area of 4.4% displays antiviral activity against human coronavirus NL63 according to ISO 21702 and inactivates > 99% of virus after 4 h of contact relative to a non-treated reference control.
Highlights
This study presents research related to the antiviral activity of painted surfaces containing galvanic microcells of zinc and copper
We hypothesized that paint coatings containing galvanic microcells of zinc and copper with adequate homogeneity and degree of aggregation would shorten the infectivity of deposited viruses on the treated surfaces
715 points were identified in a microscopic image (60 × magnification) of a coating containing galvanic microcells of zinc and copper applied on a solid surface; these were used for illustrating the grain distribution in the coating
Summary
This study presents research related to the antiviral activity of painted surfaces containing galvanic microcells of zinc and copper. The aim of this study was to investigate the virucidal activity of galvanic microcells of zinc and copper grains fixed with adequate homogeneity and degree of aggregation in water-based acrylic paint layers in reference to a non-treated reference control. This paper provides evidence that a paint coating with a total copper surface area of 4.4% displays antiviral activity against human coronavirus NL63 according to ISO 21702 and inactivates > 99% of virus after 4 h of contact relative to a non-treated reference control. Surface disinfection is one of the most recommended methods to reduce the risk of transmission of viruses, including SARS-CoV-2. We hypothesized that paint coatings containing galvanic microcells of zinc and copper with adequate homogeneity and degree of aggregation would shorten the infectivity of deposited viruses on the treated surfaces
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