Rl. Taylor et al., THE INFLUENCE OF SUBSTRATUM TOPOGRAPHY ON BACTERIAL ADHESION TO POLYMETHYL METHACRYLATE, Journal of materials science. Materials in medicine, 9(1), 1998, pp. 17-22
The effect of substratum roughness on the adhesion of Pseudomonas aeru
ginosa and Staphylococcus epidermidis was investigated using PMMA. A s
mall increase in R-a values (0.04-1.24 mu m) resulted in a significant
increase (P < 0.05) in bacterial attachment. Subsequent increases in
surface roughness (R-a = 1.86-7.89 Cim) resulted in a decrease in adhe
sion, although adhesion was still higher than to the smooth surface. W
hen the PMMA surfaces were coated with protein (bovine serum albumin),
no difference (P < 0.05) could be determined in the amount of protein
adsorbed, irrespective of surface topography. However, the influence
of the underlying topography on adhesion was still evident. Substratum
topography is an important parameter affecting bacterial adhesion to
surfaces.