Researchers from Ben Gurion University are developing novel surface coatings that will have a long term effect, and contain nanoparticles of safe metal ions and polymers with anti-viral and anti-microbial activity. Certain metals can be lethal, even in small quantities, for viruses and bacteria and are not poisonous to humans. Findings show that surfaces coated with copper nanoparticles strongly block infection of the cells by the virus. These ongoing experiments show a huge potential for copper ions in preventing surface-mediated infection with SARS-CoV-2. Based on these findings, the researchers are developing anti-viral coatings that can be painted or sprayed on surfaces.