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Fibrous collagen scaffolds fabricated via electrospinning of plant-derived human (A–C) or bovine collagen (D–F). Electrospun scaffolds were spun using (A, D) 12, (B, E) 16, and (C, F) 20 wt./vol.% solutions of collagen in hexafluoroisopropanol. Fibrous human collagen scaffolds were characterized by thinner, more uniform rounded fibers. In contrast, bovine collagen fibers exhibited ribbon-like morphologies at concentrations greater than 12 wt./vol.%. Scale bar=5 μm.
