Applied Science and Convergence Technology

Fig. 4. Tissue regeneration using 3D bioprinting technology. (a) 3D-bioprinted multilayer composite scaffolds and hair follicle-like structures in vitro and in vivo. Reproduced with the permission from [46], Copyright 2022, Elsevier. (b) Bioprinted skin implanted into a skin defect area. Reproduced with the permission from [45], Copyright 2020, Elsevier. (c) Images of 3D-printed PCL membranes with different porosities and aminolyzed 3D-printed membranes after gelatin attachment. Reproduced with the permission from [47], Copyright 2022, Elsevier. (d) Image of a fabricated 3D construct and vessel layer. Confocal microscopic fluorescence images of HUVECs in a blood vessel and hMSCs in bone. Reproduced with the permission from [48], Copyright 2021, Elsevier. (e) Scheme of a 3D bioprinting process in articular cartilage engineering. Quantitative analysis of type II collagen, hyaline-specific chondrogenic marker genes, fibrotic markers, and hypertrophic markers in a bioprinted 3D hybrid construct. Reproduced with the permission from [49], Copyright 2020, Elsevier.

Applied Science and Convergence Technology 2023;32:1~6 https://doi.org/10.5757/ASCT.2023.32.1.1