Formation and Investigation of Electrospun PLA Materials with Propolis Extracts and Silver Nanoparticles for Biomedical Applications

Figure 3

SEM images (scale: 5 μm, magnification: 20,000x) of electrospun PLA materials: (A) PLA solution (4 wt%), (B) PLA solution (4 wt%) containing 10 wt% ethanol, (C) PLA solution (4 wt%) containing 20 wt% ethanol, (D) PLA solution (4 wt%) containing 10 wt% PEE, and (E) PLA solution (4 wt%) containing 20 wt% PEE.