Research Article

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

Figure 4

Effect of P(VDF-TrFE) membranes with differential surface potentials on cell morphology and proliferation. (a) The fluorescent representative images were observed after HUVECs in direct contact with the P(VDF-TrFE) membranes with differential surface potentials for 24 h, stained by AM/PI. The red fluorescence depicts apoptotic cells stained by PI, while the green fluorescence shows live cells with membrane integrity identified by AM (). (b) Quantitatively cell viability was measured by CCK-8 assay. A two-way ANOVA is used to analyze the data that come from three independent tests. .
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