Radiology Hygiene: Why Conventional Disinfectants Have Their Limitations—and How Oxidation Technology Improves Safety

In modern radiology, hygiene plays a critical role. Examination rooms, particularly those used for MRI and CT scans, must be disinfected regularly and thoroughly, while protecting sensitive and expensive equipment.

Many medical practices and hospitals still use conventional disinfectants based on ethanol, isopropanol, or quaternary ammonium compounds (QACs). These so-called “traditional” disinfection methods rely primarily on the chemical inactivation of microorganisms. But is this approach sufficient to ensure long-term infection prevention?

Inactivation or destruction: a difference that is often underestimated

Conventional disinfectants work by denaturing proteins and disrupting cell membranes. This inactivates many germs: they lose their ability to cause harm, though they are not completely destroyed.

This limit is particularly important in the case of bacterial spores. These can survive in an inactive form and become active again when conditions become favorable.

In demanding environments such as radiology departments, this situation poses a real risk. Spore-forming microorganisms such as Clostridioides difficile or certain species of the genus Bacillus can survive despite disinfection and pose a threat to both patients and healthcare workers.

Biofilms, Resistance, and Reactivation: The Limitations of Traditional Disinfection

Prolonged use of quaternary ammonium compounds can also promote biofilm formation and contribute to the development of resistance.

Within biofilms, microorganisms enjoy increased protection against disinfectants and can even exchange resistance genes. The result is the creation of reservoirs of infection that are particularly difficult to eliminate in everyday hospital settings.

Hydrogen peroxide oxidation technology: a new generation of disinfection

Saniswiss takes a different approach using patented technology based on a concentrated form of hydrogen peroxide (H₂O₂).

Unlike conventional disinfectants, which often merely inactivate microorganisms, oxidation technology works by destroying their cell membranes, DNA, and proteins. This allows for the complete elimination of bacteria, viruses, fungi, and spores.

Studies show that Log 6-level (99.9999%) microbial reductions can be achieved under real-world conditions, including in hard-to-reach areas.

The effectiveness of this technology has been evaluated according to several recognized international standards, including EN 13727, EN 14476, EN 13624, and EN 13704.

A solution that meets sustainability requirements

Saniswiss products are CE-certified and comply with the requirements of European biocidal product regulations as well as Swissmedic’s registration requirements. They contain no halogenated compounds and break down naturally into water and oxygen. This feature contributes to a more sustainable approach to hygiene in healthcare facilities.

Conclusion

In radiology departments, where patient volume is high and equipment is particularly sensitive, rapid, effective, and residue-free disinfection is essential.

While conventional disinfectants have certain limitations when it comes to spores, biofilms, and the risk of reactivation, the oxidation technology developed by Saniswiss offers a modern alternative that meets today’s requirements for microbiological efficacy, patient safety, and staff protection.

To learn more about Saniswiss products and technologies, visit: www.saniswiss.com

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