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- W4293044862 endingPage "112551" @default.
- W4293044862 startingPage "112551" @default.
- W4293044862 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 rates were > 2log/h, with the rate determined using a dedicated, low intensity UVA source (0.25 mW cm-2) only 1.3 x's faster than that for a cool white lamp (UVA irradiance = 0.047 mW cm-2), which suggests that SARS2 is particularly prone to photocatalytic inactivation even under low UV irradiation conditions, such as found in a room lit with just white fluorescent tubes. This is the first example of a flexible, very thin, photocatalytic plastic film, produced by a scalable process (extrusion), for virus inactivation. The potential of such a film for use as a disposable, self-sterilising thin plastic material alternative to the common, non-photocatalytic, inert equivalent used currently for curtains, aprons and table coverings in healthcare is discussed briefly." @default.
- W4293044862 created "2022-08-25" @default.
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- W4293044862 date "2022-10-01" @default.
- W4293044862 modified "2023-10-01" @default.
- W4293044862 title "Flexible, disposable photocatalytic plastic films for the destruction of viruses" @default.
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- W4293044862 doi "https://doi.org/10.1016/j.jphotobiol.2022.112551" @default.
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