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

Table 1

Size data of electrospun silk nanofibers from 8% SF/FA solutions prepared from different Na₂CO₃ conditions: (a) 5%, (b) 0.5%, (c) 0.05%, and (d) 0.005%.

Samples	Average diameter (nm)	Standard deviation (nm)
(a)	518.8 (particles)	320.5
(b)	1222.4 (particles)	781.7
(c)	355.6 (fibers)	81.0
(d)	1341.2 (fibers)	261.8