Fig. 8. Biological performance of the different treated surfaces. (a) HUVEC viability, normalized to polystyrene well. There was no significant difference among samples, except EP with PIII, but the viability higher than 60% of the cells is represented by the dashed line. (b) Hemocompatibility test, normalized to haemolysed blood, where there was no significant difference between samples after the haemoglobin free test. Significant differences were determined by running a one-way ANOVA followed by Tukeys post-hoc method. A p-value < 0.05 was considered significant (*).