期刊论文详细信息
Current Directions in Biomedical Engineering
Development and verification of a test rig for inactivation of bacteria and (corona-) viruses by UVC air disinfection systems
Hessling Martin1  Vatter Petra1  Knaus Johannes2 
[1] Institute of Medical Engineering and Mechatronics, Ulm University of Applied Sciences, 89081Ulm, Germany;Institute of Medical Engineering and Mechatronics, University of Applied Sciences, 89081Ulm, Germany;
关键词: sars-cov;    sars-cov-2;    coronavirus;    covid- 19;    phi6;    s. aureus;    bacteria;    staphylococcus aureus;    uvc;    uv-c;    ultraviolet;    irradiation;    inactivation;    disinfection;   
DOI  :  10.1515/cdbme-2021-2080
来源: DOAJ
【 摘 要 】

The ongoing coronavirus pandemic spreads through airborne transmission and is therefore difficult to contain. However, coronaviruses are highly sensitive to UVC, so UVC air disinfection systems should be able to inactivate the virus. Unfortunately, so far there are only few possibilities to test the reduction of airborne viruses or other pathogens. A special test rig, which mainly consisted of a nebulizer and an airflow system, was developed to determine the antiviral and antibacterial efficiency of UVC air disinfection systems. In the assessment of such an UVC air disinfection system with nebulized Staphylococcus carnosus and a sampling period of 30 minutes, a mean bactericidal reduction of 3.70 log10 (99.98 %) was determined. For antiviral irradiation of the coronavirus surrogate phi6 a mean viral load reduction of 1.18 log10 (93.40 %) was observed after a sampling period of 10 minutes. Therefore, mobile UVC air disinfection systems could be applied in hospitals, retirement and nursing homes.

【 授权许可】

Unknown   

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