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Structural and mechanical characterization of micro/nanofibrous scaffolds. (A–D) Scanning electron microscopic (SEM) images of the electrospun scaffolds with PLLA (A), PLLA/5%PLLA (B), PLLA/5%PCL (C), PLLA/10%PCL (D). (E) Representative SEM image of an electrospun vascular graft with PLLA/5%PCL. (F) Stress-strain curves of electrospun scaffolds. The scale bar indicates 30 µm (A through D), and 300 µm (E).
