Surface Modification

Antibacterial fibers and coatings with AGXX particles for textile applications

Saal A
Freitag, 13.09.2024, 11:50 - 12:15 Uhr

A new antimicrobial functionalization of textiles is possible with the innovative AGXX technology. As the catalytic AGXX technology is neither based on metal ion leaching as conventional silver technologies nor on the release of any environmentally harmful substances, it is not consumed over time and has a long-lasting effect. DITF and Heraeus are working on the incorporation of AGXX into fibers and surface coatings and the evaluation of efficiency and resistance.

Sprecher
Carsten Linti (DITF Denkendorf)
Co-Authoren
Cigdem Kaya (DITF Denkendorf), Evi Held-Föhn (DITF Denkendorf), Stephanie Berndt (DITF Denkendorf), Gabriele Schmeer-Lioe (DITF Denkendorf), Götz Theo Gresser (DITF Denkendorf), Thomas Stegmaier (DITF Denkendorf)
The presentation will focus on the antimicrobial functionalization of textiles with the innovative AGXX technology. The mechanism of action of AGXX is based on a catalytic redox reaction and microelectric field effects. In the presence of air humidity, oxygen is converted into reactive oxygen species (ROS), which react with microorganisms and kill them. In addition, the existing microelectric field affects important functions of the cell membrane and accelerates the killing of the microorganisms. The effectiveness of AGXX has already been proven against more than 130 different microorganisms, including germs with multiple resistances against antibiotics, e.g. MRSA, or against conventional silver leaching technologies, such as certain E.coli types. As the catalytic AGXX technology is neither based on metal ion leaching as conventional silver technologies nor on the release of any environmentally harmful substances, it is not consumed over time and has a long-lasting effect. In a joint project DITF and Heraeus are working on the incorporation of AGXX into textiles, in the form of fibre additives and surface coatings. The tests show that AGXX has an excellent antimicrobial effect in fibers and textile coatings. Extended laboratory tests are currently being carried out on the effect, resistance and properties of use. The economic exploitability aims at establishing and expanding the use of AGXX particles in everyday, occupational and medical applications. In addition to the application intended here for the treatment of workwear for sick and nursing staff the potential for adaptation to other applications is considered to be very high.