Fig. 5

The morphology of HUVECs in devices without membrane deformation (Exponential decreasing shear profile). A The schematic diagram showing the orientation angle and aspect ratio of cells. B The phase contrast photos of HUVECs in 5 channels with various shear stress for 24h. C The orientation angle distribution of cells (N = 89–194). D The aspect ratio of cells in five branch channels with distinct shear stress