Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1080/08927010290011370
Titel (primär) Influence of the surface topography of stainless steel on bacterial adhesion
Autor Medilanski, E.; Kaufmann, K.; Wick, L.Y.; Wanner, O.; Harms, H.
Quelle Biofouling
Erscheinungsjahr 2002
Department UMB
Band/Volume 18
Heft 3
Seite von 193
Seite bis 203
Sprache englisch
Abstract Bacterial adhesion on stainless steel may cause problems such as microbially induced corrosion or represent a chronic source of microbial contamination. The investigation focussed on how the extent and patterns of four bacterial species comprising three different phyla and a broad variety of physicochemical characteristics was influenced by the surface topography of AISI 304 stainless steel. Five types of surface finish corresponding to roughness values R a between 0.03 and 0.89 w m were produced. Adhesion of all four bacteria was minimal at R a =0.16 w m, whereas smoother and rougher surfaces gave rise to more adhesion. This surface exhibited parallel scratches of 0.7 w m, in which a high proportion of bacteria of three of the strains aligned. Reduced overall adhesion was attributed to unfavorable interactions between this surface and bacteria oriented other than parallel to the scratches. Interaction energy calculations and considerations of micro-geometry confirmed this mechanism. Rougher surfaces exhibiting wider scratches allowed a higher fraction of bacteria to adhere in other orientations, whereas the orientation of cells adhered to the smoothest surface was completely random.
dauerhafte UFZ-Verlinkung
Medilanski, E., Kaufmann, K., Wick, L.Y., Wanner, O., Harms, H. (2002):
Influence of the surface topography of stainless steel on bacterial adhesion
Biofouling 18 (3), 193 - 203 10.1080/08927010290011370