Biofilms are communities of bacteria, fungi, protozoa, or algae that attach to surfaces in aqueous systems, grow there, and form a slime layer. This layer usually consists of polysaccharides and protects the underlying microorganisms from influences such as disinfectants or high temperatures.

If you would like to learn more about biofilms, we recommend the following interesting information sources:

Fraunhofer Institute

Biospektrum.de

Wikipedia