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Rheological properties of 3D printed alginate/gelatin constructs with varying hECM concentration. (A) Comparison between 0 and 1 mg/mL hECM, one and seven days after printing. Elastic modulus of the wet bioink formulations were measured at a frequency of 1 Hz and 0.1% shear strain at 37 °C; (B) Shear modulus of 3D printed constructs at increasing frequencies (0.1–10 Hz). Results are shown as mean ± SEM of a triplicate experiment.
