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Silver Nanoparticle-Decorated Personal Protective Equipment for Inhibiting Human Coronavirus Infectivity.
Mutalifu Abulikemu1, Bita E A Tabrizi1, Shahrokh M Ghobadloo2
1School of Electrical Engineering and Computer Science, University of Ottawa, 800 King Edward Avenue, Ottawa, Ontario K1N 6N5, Canada.
Summary
Antiviral metal nanoparticles were assembled on face masks and surfaces, achieving 99.99% efficacy against a SARS-CoV-2 surrogate virus. This cost-effective method aids in curbing the spread of Coronavirus disease 2019 (COVID-19).
Area of Science:
- Materials Science
- Nanotechnology
- Infectious Disease Control
Background:
- The COVID-19 pandemic necessitates effective strategies to reduce SARS-CoV-2 transmission.
- Disinfecting materials and personal protective equipment are crucial for mitigating viral spread.
Purpose of the Study:
- To develop and evaluate antiviral metal nanoparticles for application on surfaces and face masks.
- To assess the efficacy of these nanoparticles against a surrogate for SARS-CoV-2.
Main Methods:
- In situ assembly of antiviral metal nanoparticles on rigid surfaces and commercial nonwoven/woven textile face masks.
- Blade-coating technique for nanoparticle application.
- Efficacy testing using a surrogate virus for SARS-CoV-2.
Main Results:
- Achieved a high efficacy of 99.99% against the surrogate SARS-CoV-2 virus.
- Demonstrated successful application of nanoparticles on both rigid surfaces and textile-based face masks.
Conclusions:
- The developed antiviral metal nanoparticles offer a versatile and cost-effective solution for disinfection.
- The blade-coating technique is scalable to roll-to-roll manufacturing for rapid production.
- This approach can significantly contribute to curbing the spread of SARS-CoV-2.

