Figure 9: (A) Elastic modulus of ST-gelatin gels with different contents of STgelatin. (B) Cell adhesion and proliferation characteristics of endothelial cells on 40 wt.% ST-gelatin gel (B). Valve-opening ratio, 1%; injection time, 0.1 s; concentration of cells, 1×107 cells/ml; injection pressure, 0.05 MPa.