Figure 4
Physical properties of scaffolds. (a–f) Photographs taken with SEM showed multi-scale pore size, (g) Porosity of scaffolds, (h) compressive stress–strain curve, and (i) Young’s Modulus of printed scaffolds measured after crosslinking by CaCl2. All data are displayed as mean ± SD. ***indicates p < 0.001, **indicates p < 0.01, *indicates p < 0.05, analysed via Welch's t test.
