“…Keratin is a natural material with excellent biocompatibility and has been evaluated (Batzer, Marsh, & Kirsner, ; Bhardwaj et al, ; Rouse & Van Dyke, ). Regarding to the common biomaterials for wound healing, there are various dressings or gels used for physical trauma, chronic wound, and other types of injuries, which include hydrocolloids (Grange‐Prunier, Couilliet, Grange, & Guillaume, ; Koo, Piletta‐Zanin, Politta‐Sanchez, Milingou, & Saurat, ), alginates (Balakrishnan, Mohanty, Umashankar, & Jayakrishnan, ; Wang et al, ), hydrogels (Kamoun, Kenawy, & Chen, ; Madaghiele, Demitri, Sannino, & Demitri, ), polyurethane (Gultekin et al, ; Yücedag et al, ), chitosan (Liang et al, ; Ribeiro et al, ; Stricker‐Krongrad et al, ), gelatin (Tanaka, Nagate, & Matsuda, ; Ulubayram, Nur Cakar, Korkusuz, Ertan, & Hasirci, ) pectin (Giusto et al, ; Tummalapalli et al, ), and hyaluronic acid (Neuman, Nanau, Oruna‐Sanchez, & Coto, ; Price, Myers, Leigh, & Navsaria, ). However, these biomaterials have limited application due to poor in vivo persistency.…”