Algae-mussel-inspired hydrogel composite glue for underwater bonding

被引：118

作者：

Cholewinski, Aleksander ^{[1
]}

Yang, Fut ^{[1
]}

Zhao, Boxin ^{[1
]}

机构：

[1] Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem Engn, Inst Polymer Res,Ctr Bioengn & Biotechnol, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada

来源：

MATERIALS HORIZONS | 2019年 / 6卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

CROSS-LINKING; BIOMIMETIC ADHESIVES; ALGINATE; PH;

D O I：

10.1039/c8mh01421c

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Inspired by the adhesive strategies of brown algae and marine mussels, we developed a novel hydrogel composite glue formed from initially separate adhesive and polymer precursors. These components then formed a network during application by coordinating with ferric ions. This approach enabled us to turn a non-adhesive polymer, alginate, into an adhesive gel with good performance, which was not possible with conventional methods utilizing chemical conjugation of catechol functionality. Sequential deposition of precursors, mimicking algae, was found to outperform the direct mixing of components before application. The resulting glue does not require chemical conjugation, and yet can strongly bond dissimilar materials completely submerged in water.

引用

收藏

页码：285 / 293

页数：9

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