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SEM micrographs of electrospun scaffolds made of: (A) 20% PCL fibers, (B) 20% PCL + 0.5% Alginate fibers, (C) 20% PCL + 1% Alginate fibers, (D) 14% PEOT/PBT fibers, (E) 14% PEOT/PBT + 0.5% Alginate fibers, and (F) 14% PEOT/PBT + 1% Alginate fibers. Flow rate: (A,C,D,E) 3.5 ml/h; (B)1.5 ml/h; (F) 2.5 ml/h. Air gap: 25 cm. Scale bar: (A–C) 100 μm & (D–F) 20 μm.
