While the formulations could be extruded at 22 ºC, printing with inks containing low concentrations of GelMA at 37 ºC is more relevant for cell-laden bioinks. Therefore, the printing experiments going forward were all conducted at this temperature that approximates human physiology. Overall, these results show that GelMA-CBP inks present the required rheological properties for bioink formulation for extrusion 3D printing at physiological temperatures.