Review of microbial touchscreen contamination for the determination of reasonable ultraviolet disinfection doses

2021/11/02 by Martin Heßling, Hessling, Martin, Robin Haag +3
Immunology and Microbiology · Medicine · #Desinfektion #ESKAPE pathogens #ESKAPE-Erreger #Infection Control and Ventilation #Infection Control in Healthcare #Medical Device Sterilization and Disinfection #Medicine and health #Staphylokokken #Touchscreen #UVA #UVB #UVC #contamination #disinfection #far-UVC #mikrobielle Kontamination #staphylococci #touchscreen #ultraviolet radiation #ultraviolette Strahlung

paper · doi:10.3205/dgkh000401

openalex publication_date 2021/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/19

Abstract

Disinfection is achievable in all UV spectral ranges, with UVC being the most effective, enabling automatic disinfection within a minute or less. The much higher doses required in the UVB and UVA spectral range result in much longer disinfection durations, with the advantage of a reduced risk to humans. For all kinds of UV irradiation, the doses should be limited to reasonable values to avoid irradiating an already more or less sterile surface and to prevent degradation of touchscreen devices.

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