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SEM micrographs of 20% (w/v) ES-NF with different loaded KET concentrations, (A) 10%, (B) 15% and (C) 20% (w/v), produced at a flow rate of 0.5 mL/h and an applied voltage of 15 kV.
Abbreviations: SEM, scanning electron microscopy; ES, Eudragit S100; NF, nanofiber; KET, ketoprofen.
