Genetically Engineered Polypeptide Adhesive Coacervates for Surgical Applications
作者:Jing Sun、Lingling Xiao、Bo Li、Kelu Zhao、Zili Wang、Yu Zhou、Chao Ma、Jingjing Li、Hongjie Zhang、Andreas Herrmann、Kai Liu
DOI:10.1002/anie.202100064
日期:2021.10.25
Adhesive hydrogels have been developed for wound healing applications. However, their adhesive performance is impaired dramatically due to their high swelling on wet tissues. To tackle this challenge, we fabricated a new type of non-swelling protein adhesive for underwater and in vivo applications. In this soft material, the electrostatic complexation between supercharged polypeptides with oppositely
粘性水凝胶已被开发用于伤口愈合应用。然而,由于它们在湿纸巾上的高溶胀,它们的粘合性能受到显着损害。为了应对这一挑战,我们制造了一种用于水下和体内应用的新型非溶胀蛋白质粘合剂。在这种软材料中,超荷电多肽与含有3,4-二羟基苯丙氨酸或偶氮苯部分的带相反电荷的表面活性剂之间的静电络合对于超强粘合凝聚层的形成起着重要作用。值得注意的是,在环境条件下测试时,其粘合能力优于商业氰基丙烯酸酯。此外,在水下环境中的粘合力比其他报道的蛋白质基粘合剂更强。离体和体内实验证明了其持久的粘合性能以及伤口密封和愈合的出色表现。