Bioinspired and Microgel-Tackified Adhesive Hydrogel with Rapid Self-Healing and High Stretchability

被引：117

作者：

He, Xiaoyan ^{[1
]}

Liu, Liqin ^{[1
]}

Han, Huimin ^{[1
]}

Shi, Wenyu ^{[1
]}

Yang, Wu ^{[1
]}

Lu, Xiaoquan ^{[1
]}

机构：

[1] Northwest Normal Univ, Key Lab Bioelectrochem & Environm Anal Gansu, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China

来源：

MACROMOLECULES | 2019年 / 52卷 / 01期

基金：

中国国家自然科学基金;

关键词：

NANOCOMPOSITE HYDROGEL; TOUGH; POLYMER;

D O I：

10.1021/acs.macromol.8b01678

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

Adhesive hydrogels with self-healing and stretchability are expected to be used in a variety of fields including electronic skin, wound dressings, and wearable devices. Here, a novel strategy is exhibited to enhance the adhesiveness of hydrogels by introducing positively charged microgel into the hydrogel matrix of polydopamine inspired by the natural mussel adhesive mechanism. The synthesized hydrogels exhibit good adhesion not only on various organic and inorganic surfaces (such as polythene, polytetrafluoroethylene, rubber, ceramics, glass, and copper) but also on many biological tissue surfaces (e.g., heart, liver, lung, kidney, and hogskin). Compared with hydrogels only containing catechol moieties, the adhesion strength of microgel-containing hydrogels increased 8 times on glass substrates. In addition, the adhesive hydrogel also exhibits rapid self-healing and good stretchability due to the noncovalent interaction between the microgel and the hydrogel matrix. On the whole, doping microgel in the construction of multifunctional hydrogels substantially improved their adhesive ability on many types of surfaces.

引用

页码：72 / 80

页数：9

共 47 条

[1]

Mussel-Inspired Self-Healing Double-Cross-Linked Hydrogels by Controlled Combination of Metal Coordination and Covalent Cross-Linking [J].