keywords ARG-GLY-ASP CONJUGATED CHITOSAN MEMBRANES FIBROBLAST-GROWTH-FACTOR GUIDE NEURITE OUTGROWTH HUMAN ENDOTHELIAL-CELLS HUMAN TENASCIN-C HYALURONIC-ACID HYDROGELS IMMOBILIZED CONCENTRATION GRADIENTS Materials Science Materials Science, Biomaterials Physical Sciences Polymer Science Science & Technology TISSUE-ENGINEERING APPLICATIONS Technology VASCULAR SMOOTH-MUSCLE