Figure 5From: Surface modification of a polyhedral oligomeric silsesquioxane poly(carbonate-urea) urethane (POSS-PCU) nanocomposite polymer as a stent coating for enhanced capture of endothelial progenitor cells AFM images of POSS-PCU. Pure POSS-PCU films displayed a topography with “spikes”. Anti-CD34 antibody immobilization changes the topography to a more ridge-like appearance. This is largely consistent with SEM images. Scale bar represents 1 μm.Back to article page