Antibiofilm activity of curcumin-loading membranes. Biofilm formation was evaluated by CV assay, after 6, 12, and 24 h of incubation at 37 °C in the presence of PAO1 (A), and Streptococcus mutans (B) as described in the material and methods section. Biofilm formation was reported as a percentage in comparison to the maximum amount of biofilm produced by PAO1 and Streptococcus mutans grown (bacterial positive controls). For each sample, six different experiments were conducted, and the results expressed as the mean of the values obtained (mean ± SD). Statistically significant variations: *** p < 0.001 versus PCL and PLA; ### p < 0.001 versus PCL-Cur.