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Plastic film protects surfaces against novel coronavirus on contact.
The material was quantified by PCR, showing a reduction of almost 100% in copies of SARS-CoV-2 after two minutes of exposure. "The silver-silica nanoparticles are added to the polyethylene during its production, so the film's antimicrobial action persists throughout its working life,"
https://phys.org/news/2020-10-plastic-surfaces-coronavirus-contact.html