Fig. 3. Uniaxial tensile testing results of the PCL, PVA, PPCS, and PPCS-SDF1 membranes. Representative stress–strain curves (A), mean value of elongation at break (B), mean value of ultimate tensile stress (C), and mean value of Young's modulus (D) of PCL, PVA, PPCS, and PPCS-SDF1 membranes. (*) indicates p-values (p ≤ 0.05) where a statistically significant difference was observed between compared groups.