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Ultrastructure of raw materials (left column) from (a) Kraft fibers (KF), (b) hemp fibers (HF), and (c) fungal fibers (FF Ga), and mycocel biopolymer compositions (right column): (d) KF FF (Ga); (e) HF FF (Ga); (f) KF HF FF (Ga). SEM, 1000×. Bar = 100 μm.
