文献类型：期刊文献

英文题名：Mineral-Enhanced Polyacrylic Acid Hydrogel as an Oyster-Inspired Organic-Inorganic Hybrid Adhesive

作者：Li, Ang[1];Jia, Yunfei[2];Sun, Shengtong[3];Xu, Yisheng[1,4];Minsky, Burcu Baykal[5];Stuart, M. A. Cohen[1];Colfen, Helmut[6];von Klitzing, Regine[7];Guo, Xuhong[1,4]

机构：[1]East China Univ Sci & Technol, Minist Educ, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China;[3]Donghua Univ, Coll Chem Chem Engn & Biotechnol, Ctr Adv Low Dimens Mat, Key Lab Sci & Technol Ecotext,Minist Educ,State K, Shanghai 201620, Peoples R China;[4]Shihezi Univ, Engn Res Ctr Xinjiang Bingtuan Mat Chem Engn, Shihezi 832000, Peoples R China;[5]Smith Coll, Dept Biol Sci, Northampton, MA 01063 USA;[6]Univ Konstanz, Phys Chem, Univ Str 10, D-78457 Constance, Germany;[7]Tech Univ Darmstadt, Dept Phys, Alarich Weiss Str 10, D-64287 Darmstadt, Germany

年份：2018

卷号：10

期号：12

起止页码：10471

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20181404975728);WOS:【SCI-EXPANDED(收录号:WOS:000428972700067)】；

基金：The authors gratefully acknowledge the financial support from the National Science Foundation of China (NSFC; nos. 21676089, 5171101370, 21604024, and 51773061). This work was also sponsored by Shanghai Talent Development Fund (2017038), Natural Science Foundation of Shanghai, Innovation Program of Shanghai Municipal Education Commission (15ZZ030), the Open Project of State Key Laboratory of Chemical Engineering (SKL-ChE-16C02), the Fundamental Research Funds for the Central Universities (222201717013), "Chenguang Program" supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (no. 16CG32), and 111 Project Grant (B08021). A.L. thanks Zhuoyuan Zheng for FT-IR, Xianjing Jia for XRD, and Zhouyue Lei of Fudan University for rheological measurements.

语种：英文

外文关键词：adhesion; biomimetic synthesis; gels; oyster; organic-inorganic hybrid composites

摘要：Underwater adhesion is crucial to many marine life forms living a sedentary lifestyle. Amongst them, mussel adhesion has been mostly studied, which inspires numerous investigations of 3,4-dihydroxyphenylalanine (DOPA)-based organic adhesives. In contrast, reef-building oysters represent another important "inorganic" strategy of marine molluscs for adhesion by generating biomineralized organic inorganic adhesives, which is still rarely studied and no synthetic analogues have ever been reported so far. Here, a novel type of oyster-inspired organic inorganic adhesive based on a biomineralized polyelectrolyte hydrogel is reported, which consists of polyacrylic acid physically cross-linked by very small amorphous calcium carbonate nanoparticles (<3 nm). The mineral-enhanced polyelectrolyte hydrogel adhesive is shown to be injectable, reusable, and optically clear upon curing in air. Moreover, comparable adhesion performance to DOPA-based adhesives is found for the hydrogel adhesive in both dry and wet conditions, which can even be further enhanced by introducing a small amount of second large cross-linker as negatively charged nanoparticles. The present mineral hydrogel represents a new type of bio-inspired organic-inorganic adhesive that may find a variety of potential applications in adhesive' chemistry.