3D printing and printability. The inks described in Table were printed using an Allevi 3 bioprinter (Allevi, Philadelphia, PA, USA). The inks were pre-heated to 37 °C, placed in a syringe and centrifuged at 2900g for 5 minutes to remove bubbles before printing. The printing parameters used are shown in Table . Mesh-like and cylinder constructs were printed to assess the printability and shape fidelity. The printability was evaluated from the mesh constructs using: