Figure 1

Schematic representation of the branched 4-arm PEG-DA and different reactions. A: Schematic representation of the synthesis of branched 4-arm PEG-DA. B: Schematic representation of the PEGylation of decellularized valves. C: Schematic representation for the immobilization of decellularized valves by the GRGDSPC peptide. D: Schematic representation for the immobilization of decellularized valves by the VEGF₁₆₅. E: Schematic representation for the simultaneous immobilization of decellularized valves by GRGDSPC peptide and VEGF₁₆₅. F: The structure of the branched 4-arm PEG-DA.