Figure 1.
3D bioprinting PEGX-gelatin a) extrusion through 200 μm tip b) 15×15 mm square printed, 4 layers c) 20 layer porous hexagon shape ~ 5 mm thick d) inner structure of 4 layer printed structure, scale bar 500 μm, struts ~350–450 μm diameter e) warm gelatin (no PEGX) printed on 5 °C substrate with 200 μm tip, 2 layers, scale bar 500 μm, struts ~1.1–1.3 mm diameter.