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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Acta Biomater. 2015 Apr 7;20:22–31. doi: 10.1016/j.actbio.2015.04.004

Fig. 3.

Fig. 3

SEM morphologies of silk fibroin scaffolds with different contents of silk fibroin nanofibers before (A-E) and after water immersion treatment (C1-E1): (A)SS-0, silk fibroin nanofiber content 0%; (B) SS-2, silk fibroin nanofiber content 2%; (C) SS-6.3, silk fibroin nanofiber content 6.3%; (D) SS-11.8, silk fibroin nanofiber content 11.8%; (E) SS-33.3, silk fibroin nanofiber content 33.3%. The samples (C1-E1) are the corresponding scaffolds of samples (C-E) after water immersion treatment. The insert images show the high magnification morphology of the porous walls of the scaffolds.