Figure 4.

Cellular infiltration and ECM deposition within a hierarchical scaffold. Human dermal fibroblasts were grown within the scaffold for 7 days, fixed, and stained for fibronectin (green), actin (red), and nuclei (blue). Confocal images shown are maximum intensity projections (a,b) of the airbrushed fibers between two struts on the scaffold surface. (c) Cross‐section of scaffolds showing cell infiltration and fibronectin deposition throughout the depth of the scaffold. Scale bars are 200 μm (a,c) and 100 μm (b)