Abstract We have demonstrated a novel strategy to enhance mechanical strength by designing dual-network (DN) structures. The novel self-healing hydrogel system composed of silk fibroin powder (SFP) and polyacrylamide (PAM) combines hydrogen bond supramolecular action. In addition, this system was prepared via a simple one-pot method of copolymerization. The SFP-PAM hydrogels could achieve high mechanical properties. The stress and strain at break were 0.65 MPa and 2250%, respectively. The hydrogels exhibited adhesive and self-healing properties. The fabricated multifunctional SFP-PAM hydrogel shows promise in potential applications in wound dressing and transparent artificial skins for body-adhered signal detection.

中文翻译：

---

一种新型的高伸缩性、粘性和自愈性丝素蛋白粉基水凝胶，含有双网络结构

摘要 我们展示了一种通过设计双网络 (DN) 结构来增强机械强度的新策略。由丝素蛋白粉（SFP）和聚丙烯酰胺（PAM）组成的新型自修复水凝胶系统结合了氢键超分子作用。此外，该系统是通过简单的一锅共聚方法制备的。SFP-PAM 水凝胶可以实现高机械性能。断裂应力和应变分别为 0.65 MPa 和 2250%。水凝胶表现出粘附性和自愈性。制造的多功能 SFP-PAM 水凝胶在伤口敷料和用于身体粘附信号检测的透明人造皮肤中显示出潜在的应用前景。