Inspired by mussel: biomimetic polyelectrolyte complex coacervate adhesive initiate a connection through water exchange

被引：0

作者：

Wang, Guilong ^{[1
]}

Hu, Zhen-Feng ^{[1
]}

Liang, Xiu-Bing ^{[1
]}

Chen, Fu-Xue ^{[2
]}

机构：

[1] Acad Mil Med Sci, Def Innovat Inst, Beijing 100071, Peoples R China

[2] Beijing Inst Technol, Sch Chem & Chem Engn, Beijing, Peoples R China

来源：

BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS | 2022年 / 11卷 / 01期

关键词：

WOUND CLOSURE; WET ADHESION; HYDROGELS; CATECHOL; SYNERGY;

D O I：

10.1680/jbibn.21.00001

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Here we report a versatile and strong underwater adhesive that was inspired by the chemical features of the mussel foot proteins. A random copolymer (PMDA-Tf2N) was prepared that contained side-chain catechol groups and quaternary ammonium cations that were ion-paired with bis(trifluoromethane-sulphonyl)imide anion (Tf2N-). After dissolving PMDA-Tf2N and poly(acrylic acid) (PAA) in dimethyl sulphoxide (DMSO), polyelectrolyte complex coacervate adhesive (P2) could be formed, which could be triggered through the solvent exchange. The P2 exhibited outstanding underwater shear strength to various substrate surfaces. After a critical curing time (t(s) = 10 min), the adhesion strength of P2 increased sharply up to 187.298 kPa (t(s) = 40 min) to glass.

引用

页码：17 / 22

页数：6

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