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High effectiveness of an antimicrobial coating on adhesive HEXIS films

27 September 2021: In a clinical study that lasted several months, the effectiveness of antimicrobial treated surfaces against hospital pathogens was examined under real-life conditions at the University Hospital Basel in Switzerland. The research team, headed by Prof. Dr. Andreas Widmer and Dr. R. Frei, confirmed that the Sanitized® treated adhesive film developed jointly with Hexis S.A.S. has 98 % effectiveness against microbes. The results were first published in the peer-reviewed scientific journal “Antimicrobial Resistance & Infection Control”. The study was supported by Innosuisse, the Swiss Innovation Agency.

Despite improvement in hygiene measures, it is estimated that hospital-acquired infections claim 37,000 human lives in the EU every year, whereas in the United States, they claim over 98,000 lives. In addition, high economic losses are involved. Therefore, the development and research into the effectiveness of hygiene measures is critical, since the microbes that cause infections can survive on surfaces for hours or even months and be spread from there.

A case study at the University Hospital Basel headed by Prof. Dr. Andreas Widmer and Dr. R. Frei addressed the issue of whether and how effectively the antimicrobial coated plastic adhesive film from Hexis S.A.S. acts against the cause of what are commonly known as hospital-acquired infections (HAI).

Study setting: Frequently touched surfaces, with and without a Sanitized® treated coating. A real-life situation was created by focusing the study on frequently touched surfaces in six patient rooms, three in the surgical and three in the medical department. Specifically, overbed tables, bedside tables, arm rests of patient chairs, dining tables, toilet seats, and toilet flush handles were included. The Sanitized® treated film was applied onto half of the surface, while the other half remained in its original state and served as the control surface. During the study’s several-month duration, the patients’ rooms were cleaned normally once a day, and the bathrooms were disinfected once a day.

Long-term effect: A clear and significant reduction in pathogens. All in all, 403 swabs were analyzed. The Sanitized® treated film led to a reduction in total viable count of 98.4 % across all six different surface types. The largest reduction was measured on the toilet seats and on the toilet flush handles (99 %).

The long-term effect of the treated Sanitized® PURZON060B adhesive film by Hexis S.A.S was confirmed by repeating the measurement after six months. “A long-lasting antimicrobial surface supports hygiene management in hospitals and care facilities,” explains Michael Lüthi, CEO SANITIZED AG.

“For our antimicrobial adhesive film, we have cooperated with SANITIZED AG. Hospitals, senior residences and care facilities thus benefit from decades of experience and the highest quality,” explains Clément Mateu, CEO of Hexis S.A.S.

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