Flexible, disposable photocatalytic plastic films for the destruction of viruses

A Rondol vertical micro extruder, equipped with a slit die, was used to produce the first flexible, very thin, photocatalytic plastic film, produced by a scalable process (extrusion), for virus inactivation. Covid19 (SARS-CoV-2), influenzas A and B and other respiratory illnesses are spread by sneezing, coughing and talking; virus particles then settle on surfaces and can be spread by hand-to-face contact. Manual surface disinfection is effective at removing these, but is labour-intensive and reliant on meticulous attention to detail; thus, self-sterilising surfaces are an important and growing area of research.

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