Figure 10From: 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 Reduction of water contact angle. Anti-CD34 antibody immobilization on the surface of POSS-PCU renders the surface less hydrophobic, compared to POSS-PCU. This is due to the high energy polar groups of proteins present in antibodies.Back to article page