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SEM images of (a) poly(acrylic acid) (PAA) membranous fibers; (b) ciprofloxacin (CFX) loaded polyvinyl pyrrolidone (PVP) fibers (1CFX:10PVP); (c) polycaprolactone (PCL) and mechanical properties; (d) tensile strength; (e) rigidity gradient; (f) deformation energy; (g) resilience (%) of membranous fibers.
