Figure 2.

Regenerative capability of 3D printed tissue constructs. (a) Enhanced in vivo bone regeneration treated by bdECM-coated scaffolds that were evaluated via micro-CT (scale bars=4 mm). (b) Schematic diagram of the 3D cell printed osteochondral construct (upper) and Masson's trichrome-stained images of the construct at 8 weeks post-implantation (bottom). (c) Fluorescent images of 3D cell printed muscle construct; (i) parallel-type, (ii) diamond-type, (iii) chain-type constructs (scale bar = 200 μm), and (iv) striated muscle patterns are detected in the muscle constructs. (d) H&E staining of 3D cell printed skin grafted to immunodeficient mice (i) and normal human skin (ii) (Ep: epidermis, BM: basal membrane, De: Dermis, scale bar = 100 μm). Reproduced with permission ¹⁵, ¹⁷, ¹⁸, ⁶³.