Figure 4.
SEM micrographs of blank 20% (w/v) EL (I) and ES (II) NFs prepared at different flow rates: (A) 0.5 mL/h, (B) 1 mL/h and (C) 2 mL/h.
Abbreviations: SEM, scanning electron microscopy; EL, Eudragit L100; ES, Eudragit S100; NF, nanofiber.
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