Research Article

Effect of Sodium Carbonate Concentrations on the Formation and Mechanism of Regenerated Silk Fibroin Nanofibers by Electrospinning

Figure 2

SEM images of electrospun silk nanofibers from 8% SF/FA solutions prepared from different Na2CO3 concentrations: (a) 5%, (b) 0.5%, (c) 0.05%, and (d) 0.005%.
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(a)
646021.fig.002b
(b)
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(c)
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(d)