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. 2021 Dec 30;11(1):26–38. doi: 10.1021/acssynbio.1c00547

Table 2. Selected 3D Skin Bioprinting Studies.

biomaterials/bioink cell types bioprinting method main findings ref
Collagen NIH3T3 fibroblasts, human keratinocytes Laser-based Fabrication of viable skin constructs, formation of multilayered epidermis within 11 days. (56)
Collagen type-I on Matriderm Human immortalized keratinocyte, NIH 3T3 fibroblasts Laser-based Histological analysis: high density of fibroblasts and keratinocytes, expression of laminin protein (a component of basement membrane in the skin). (59)
Collagen type I Fibroblasts, keratinocytes Extrusion based Densely packed cells in epidermis layers and low density of cells in the dermis. (45)
Collagen hydrogel precursor Fibroblast, melanocytes, keratinocytes Extrusion based Fabrication of full-thickness skin model containing pigmentation. (91)
Collagen and fibrinogen Amniotic fluid-based stem cell or mesenchymal stem cells Inkjet The presence of blood vessels in the subcutaneous adipose tissue revealed in histological analysis. (109)
Hydrogel fibrinogen and collagen type I Fibroblast, keratinocyte Inkjet (in situ) Design of a system for in situ skin bioprinting. Acceleration of wound regeneration by bioprinted fibroblasts and keratinocytes compared to the controls. (110)
Collagen hydrogel, gelatin, PCL (polycaprolatone) Fibroblast, keratinocyte Extrusion and inkjet based Fabrication of skin model with functional transwell system containing stabilized fibroblast-stretched dermis and stratified epidermis layers (108)
Gelatin, Fibrinogen, alginate Fibroblasts, keratinocytes Extrusion based Generation of a full-thickness akin by scaffold-free bioprinting strategy. (43)
Plasma-derived fibrin Human fibroblast, human keratinocyte Extrusion based The structural and functional features and consistency of bioprinted skin are comparable to human skin. (50)
Skin differentiation medium, Collagen I, fetal bovine serum, Human keratinocytes, human fibroblast, human endothelial cells, human pericytes Extrusion based Fabrication of multilayered vascularized bioengineered skin graft biologically and morphologically similar to native skin. (95)
Collagen, Thrombin, Fibrinogen Neonatal human dermal fibroblasts and epidermal keratinocytes, dermal microvascular endothelial cells Inkjet-based Bioprinted scaffold revealed 17% better wound contraction (111)
Gelatin, Glycerol, Fibrinogen, Hyaluronic acid, Poly(urethane) Human fibroblasts, Human keratinocytes Extrusion based Development of 3D printed BioMask for facial skin regeneration. Histological analyses revealed the regeneration of skin tissue on complex wounds. (112)
Fibrinogen, Glycerol, Gelatin, Hyaluronic acid, Aprotinin Human keratinocytes, Human melanocytes, Primary human fibroblasts, follicle dermal papillary cells, preadipocytes Extrusion based The bioprinted skin enhanced the closure of the wound by promoting the formation of the epidermal barrier. (93)