
Keywords: GFs; growth factors; ALG; alginate; HA; hyaluronic acid; HEP; heparin; PEI; polyethyleneimine; PHEMA; poly(2-hydroxyethyl methacrylate); PEG; poly(ethylene glycol); PEO; poly(ethylene oxide); DEX; dextran; PPO; poly(propylene oxide); PPG; poly(propylene g