Fig. 1.

Preparation of bioinks. (A) Schematic illustration of the whole process of fabrication of scar model. (B) HE (Scale bar = 200 μm) and SEM images (Scale bar = 100 μm) of normal dECM and scar dECM and components of native tissue and dECM. (C) Local mechanical strength of different bioinks. (D) Gelation of hydrogels and SEM images of bioinks (scale bar = 500 μm) and the related statistics. (E) Formation of cell aggregates in different bioinks with different culture time (scale bar = 200 μm). (F) Statistical analysis of diameters and numbers of cell aggregates under different pre-culture conditions (n = 3).