journal article·2021-11-08

Reduction of Infectivity of SARS-CoV-2 by Zinc Oxide Coatings

Mohsen Hosseini, Saeed Behzadinasab, Alex W.H. Chin, Leo L.M. Poon, William A. Ducker

Publisher page

Abstract

We developed antimicrobial coatings from ZnO particles that reduce the infectivity of SARS-CoV-2 suspensions by >99.9% in 1 h. The advantage of a coating is that it can be applied to a variety of objects, e.g., hand rails and door knobs, to hinder the spread of disease. Two porous coatings were prepared: one from submicrometer zinc oxide particles bound with silica menisci and the other from zinc oxide tetrapods bound with polyurethane. Experiments on glass coatings show that infectivity depends on porosity for hydrophilic materials, wherein aqueous droplets are imbibed into the pores.
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Research context

OpenAlex topics: Infection Control and Ventilation · SARS-CoV-2 detection and testing · Dental Research and COVID-19

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical Engineering and Center for Soft Matter and Biological Physics, Virginia Tech, Blacksburg, Virginia 24061, United States

School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China

Centre for Immunity and Infection, Hong Kong Science Park, Hong Kong, China

HKU-Pasteur Research Pole, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China

Funding

Health and Medical Research Fund · National Institute of Allergy and Infectious Diseases · Division of Chemical, Bioengineering, Environmental, and Transport Systems · National Science Foundation

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