Preventing and combating biofilms

If biofilms have once established themselves on a surface, it is generally difficult to deal with the problem. In this life form they are distinctly more resistant than individual cells and in many cases withstand even high doses of disinfectants and cleaning agents.

Antimicrobial surface modifications

In order to hinder the initial formation of biofilms, the use of suitable antimicrobial surface modifications, for example by means of the bonding of biocidal substances or photocatalytic finishes, is therefore indicated. An appropriate surface finish can prevent the microbial adhesion on the surface of the material or the reproduction of the cells from the outset.

At the Fraunhofer IGB interfacial engineers – in cooperation with microbiologists and cell biologists – have already developed various surface finishes. They can be characterized with the assistance of physical and chemical methods, however their biological efficacy can only be demonstrated using living systems.

Reference projects

OSIRYS – Forest based composites for façades and interior partitions to improve indoor air quality in new builds and restoration

Duration: June 2013 – May 2017

Indoor air pollutants are a burden on well-being and health. For this reason, Fraunhofer IGB is developing a photocatalytically active interior paint within the framework of the joint project OSIRYS. This can degrade pollutants by forming active oxygen species that chemically attack organic compounds when exposed to light.

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