Figure 4.

(a) The printed scaffolds immediately after cross-linking (0 h) and after storage in DPBS+ (1 week). Scale bars are 0.5 cm. (b) The corresponding dimensional change ratio in height (■ black) and cross-section (● red) of printed scaffolds were measured immediately after cross-linking and after 1 week of storage in DPBS+. The dimension changes were calculated for two scaffolds, and the error bars represent the average of the absolute deviations relative to the mean value (N = 2). All the scaffolds were printed into a cylinder shape with a diameter of 1.5 cm and a height of 2 cm.