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Lecture tip for the workshop Antimicrobial Surfaces

Lecture tip: Modified cyclodextrins for the production of antimicrobial metal surfaces
David Holuscha, Dechema Research Institute - Corrosion, Frankfurt

 

Abstracts:
For corrosion of both iron and steel and non-ferrous metals, microbially influenced corrosion (MIC) or biocorrosion is a particularly difficult form of corrosion to detect/predict. In this form of corrosion, severe damage is caused by living microorganisms that colonize in the form of biofilms and produce extracellular polymeric substances (EPS).
Studies showed that certain functional groups of EPS can promote the protective effect and adhesion to surfaces. These end groups are believed to prevent bacterial chemotaxis to iron ions and reduce biofilm formation by complexing the dissolution products (iron ions). In addition, they could block electrochemically active regions of the substrate (anode, cathode) via covalent bonds.
The idea of the work presented here is to modify the metal surface in the sense of an "antimicrobial surface" by means of biogenic substances or industrial analogues in such a way that the formation of microbial biofilms and/or the growth of harmful microorganisms is suppressed as far as possible.