Representative SEM images of bacteria and fungi adhesion on bare PU, superglue, and DURA-Z coated PU substrates after 30 d of coculture with concentrated microbes and calculated microbe adhesion density for a) shaking condition with E. coli, b) stationary condition with E. coli, c) shaking condition with S. aureus, d) stationary condition with S. aureus, e) shaking conditions with C. albicans, and f) stationary condition with C. albicans. All data are presented as mean of biological replicates (n = 6) ± standard deviation. Statistical analysis: one-way analysis of variance (ANOVA) with Bonferroni multicomparison. ***: p < 0.0001. Scale bar = 10 μm.