Fabrication and Properties of High-Content Keratin/Poly (Ethylene Oxide) Blend Nanofibers Using Two-Step Cross-Linking Process

Figure 2

Scanning electron micrographs of nanofiber mats (a) uncross-linked keratin/PEO nanofibres mat; (b) first cross-linked keratin/PEO mat; (c) second cross-linked keratin/PEO mat.

(a) Untreated keratin/PEO nanofibers mat

(b) First cross-linking keratin/PEO nanofibrous mat

(c) Secondary cross-linking keratin/PEO nanofibrous mat