Flexible, disposable photocatalytic plastic films for the destruction of viruses.

ABSTRACT: A thin, 30 μm, flexible, robust low-density polyethylene, LDPE, film, loaded with 30 wt% P25 TiO₂, is extruded and subsequently rendered highly active photocatalytically by exposing it to UVA (352 nm, 1.5 mW cm^-2) for 144 h. The film was tested for anti-viral activity using four different viruses, namely, two strains of Influenza A Virus (IAV), WSN, and a recombinant PR8, encephalomyocarditis virus (EMCV), and SARS-CoV-2 (SARS2). The film was irradiated with either UVA radiation (352 nm, 1.5 mW cm^-2; although only 0.25 mW cm^-2 for SARS2) or with light from a cool white fluorescent lamp (UVA irradiance: 365 nm, 0.047 mW cm^-2). In all cases the films exhibited an average virus inactivation rate of >1.5log/h. In the case of SARS2, the rat

SUBMITTER: Han R 

PROVIDER: S-EPMC9404456 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature