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The Bactericidal Effect of MA-T for Factitiously Contaminated and Used Masks
Ryuta Urakawa1,2, Takekatsu Shibata3,4,5, Motofumi Sogou6
1Department of Pharmacy, Osaka University Dental Hospital.
Biological & Pharmaceutical Bulletin
|June 1, 2022
Summary
Matching transformation system (MA-T) effectively disinfects used masks for reuse. This on-demand chlorine dioxide solution safely eliminates bacteria without degrading mask performance, addressing mask shortages.
Area of Science:
- Microbiology
- Materials Science
- Public Health
Background:
- Mask shortages necessitate effective and safe reuse methods.
- On-demand chlorine dioxide solutions offer a promising disinfection approach.
Purpose of the Study:
- To evaluate the efficacy of Matching Transformation System (MA-T) for disinfecting reusable masks.
- To assess the impact of MA-T disinfection on N95 mask performance.
Main Methods:
- Bactericidal efficacy testing of MA-T on artificially contaminated and used surgical masks using Escherichia coli.
- Assessment of N95 mask performance after MA-T treatment (immersion).
Main Results:
- MA-T spraying and immersion significantly reduced bacterial counts on both surgical and N95 masks.
- MA-T immersion did not degrade the performance of N95 masks after 30 minutes.
Conclusions:
- MA-T is a safe and effective disinfectant for mask reuse.
- The technology can help mitigate mask shortages by enabling safe decontamination and reuse.
- MA-T preserves mask functionality post-disinfection.
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