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Rheological study of the bio-ink: (a) impact of the sterilization process on the bio-ink viscosity, (b) impact of the alginate percentage on the bio-ink viscosity. Jetting dynamic study by real-time visualizations for an energy of 17 µJ (c) 2% alg PBS bio-ink and (d) 4% alg PBS bio-ink (scale bar: 40 µm).
