Article | REF: COR130 V1

Biocorrosion

Author: Catherine DAGBERT

Publication date: December 10, 2009

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2. Biofilm

As described by Haras , the formation of a bacterial biofilm is a complex phenomenon involving the medium, the bacteria and the colonized surfaces. It is the result of the physico-chemical properties existing between the surfaces of the material and the micro-organisms, as well as their response to adhesion and increased cell density.

Any metallic material immersed in a non-sterile environment is more or less rapidly covered by a film of organic and then biological matter.

Biofilm is made up not only of water and bacteria, but also of organic substances (macromolecules: polysaccharides,...

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