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Updated: Oct 5, 2025

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
Published on: April 21, 2023
Antiviral activity of galvanic microcells of zinc and copper contained within painted surfaces
Wojciech Spisak1, Mariusz Kaszczyszyn1, Mateusz Szar2
1Research & Development Centre ALCOR Ltd., Kępska 12, 45-130, Opole, Poland.
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.
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