antimicrobial coatings

The power of antimicrobial coatings

While not substitutes for regular cleaning and disinfection practices, these coatings can help to reduce human exposure to viruses.
Thursday, September 23, 2021

A new study in the American Journal of Infection Control has indicated just how effective certain antimicrobial coatings can be against infections including COVID-19.

The study by researchers with the University of Arizona found that applying a reformulated quaternary ammonium coating to stainless steel led to almost complete elimination of coronavirus contamination.

The polymer coating reduced levels of both test viruses by greater than 99.9 per cent relative to non-coated stainless steel coupons during a two-hour contact time. It added that a wash method for harvesting the carriers, wherein the carriers were rinsed four or five times using 1 mL of the coating solution and supplemented by a cell scraper, yielded greater viral recovery compared to a swab method.

“The COVID-19 pandemic has accelerated the demand for alternatives to standard cleaning and disinfection practices,” says the study. “Continuously-acting coatings may provide an alternative to common surface treatments.”
The study authors recommend the facilities should use certified technicians to apply the coating to high-touch surfaces using electrostatic sprayers.

“With the recent detection of infectious SARS-CoV-2 from the bedside table, remote control, bed rails, and flooring in the hospital room of an infected patient, the importance of effective hygiene protocols for environmental surfaces remains imperative,” the study added.

Researchers say surface-active antimicrobial coatings are not meant to be substitutes for regular cleaning and disinfection practices. However, they can serve as an additional barrier for reducing human exposure to infectious viruses.

Leave a Reply

Your email address will not be published. Required fields are marked *