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(a) Schematic illustration of DIW using nanocelluloses. A model is 3D-printed in layers with defined infill in a grid lattice structure and freeze-dried to retain the structure. The fidelity of the 3D-printed structures is shown in (b) CNF, (c) TOCNF, and (d) AceCNF, before drying. Such architectures are shown after drying in (e), (f), and (i) for the respective bioinks.
