Fig. 6.

Immunofluorescence staining of cellular proliferation and adhesion in cells bioprinted with the supramolecular bioink. a) Expression of Ki-67, Actin, Paxillin, and N-cadherin in fibroblasts bioprinted with bioink after 3, 7, and 14 days of culture (scale bar = 20 μm). b) Quantification of the immunofluorescence intensity per area by mean grey value from three random pictures. ** and *** indicate statistical significance (p < 0.01, and p < 0.001, respectively) when compared with those in day 3. NS indicates no statistical significance.