Review Article
A Review of the Effect of Processing Variables on the Fabrication of Electrospun Nanofibers for Drug Delivery Applications
Figure 3
FESEM images of polystyrene fibers produced from polystyrene solutions of varying volatility: (a) 100% THF; (b) 75% THF/25% DMF; (c) 50% THF/50% DMF; (d) 100% DMF. Adapted from Megelski et al. [79].