Research Article

Systematic Investigation of Polyurethane Biomaterial Surface Roughness on Human Immune Responses in vitro

Figure 1

Confocal scanning microscopy of polyurethane samples with different surface roughness. (a) 2D and (b) 3D images of polyurethane samples with different roughness profiles. (c) Quantification of average surface roughness. Roughness is shown as Sa (average roughness): P0 (VDI 0) Sa (left), P4 (VDI 27) Sa (middle), P7 (VDI 45) Sa (right). The size of the analysis area for 3D images was .
(a)
(b)
(c)