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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Acta Biomater. 2015 May 18;23:201–213. doi: 10.1016/j.actbio.2015.05.013

Figure 2.

Figure 2

Scanning electron micrographs of lyophilized keratin hydrogels showing porous structure of (A) KOS, (B) 7% S-S MKTN, (C) 74% S-S MKTN, (D) 80% S-S MKTN, and (E) KTN. All images were taken at 500× magnification and working distances of ~4.5–7.0 mm. Scale bars indicate 100 µm.