[Retracted] Influence of P(VDF-TrFE) Membranes with Different Surface Potentials on the Activity and Angiogenic Function of Human Umbilical Vein Endothelial Cells

Figure 5

Effects of P(VDF-TrFE) membranes with differential surface potentials on cell migration by scratch wound assay. (a) The representative images observed at 0 h, 6 h, 12 h, and 24 h after the initial width of scratches of each group was about 2 mm. (b) The closure ratio analysis approach is used to calculate the healing rate: . A two-way ANOVA is used to analyze the data that come from three independent tests ().

(a)

(b)