Product novelty 26. September 2024

Microorganisms often pose a serious threat to human health. In the past, antimicrobial technologies that release silver ions were predominantly used in polymers. However, studies indicate that the release of silver ions poses risks to the environment and human health. As part of the current review of all antimicrobial technologies by the European Chemicals Agency, more than 53% of technologies based on silver ions have already been classified as not eligible for authorisation. It can be assumed that only a few will be approved once the Echa review programme has been completed. With the additive AGXX, Heraeus Precious Metals, Hanau, presents an alternative that can be used both today and in the future in accordance with regulatory requirements. Manufacturers can be sure that they are using a solution that meets high standards in terms of environmental protection and consumer safety.

The additive's mechanism of action is based on a catalytic reaction triggered by the interaction of the two precious metals silver and ruthenium. In the presence of air humidity, oxygen is converted into reactive oxygen species that kill all types of microorganisms. No harmful substances are released in the process. The additive can be incorporated into textiles and polymers in particle form. The effect of the technology in various materials, in particular in water-absorbing plastics such as polyamide and (thermoplastic) polyurethane, has been confirmed by tests carried out by independent microbiological laboratories on compounds, foams, multilayer films, textile coatings and fibres. In addition to plastics and textiles, the wide range of applications also includes the areas of paints and coatings, filtration and medical products.