Metal-coordination: using one of nature's tricks to control soft material mechanics

被引：182

作者：

Holten-Andersen, Niels ^{[1
,2
]}

Jaishankar, Aditya ^{[3
]}

Harrington, Matthew J. ^{[4
]}

Fullenkamp, Dominic E. ^{[5
,6
]}

DiMarco, Genevieve ^{[1
,2
]}

He, Lihong ^{[5
,6
]}

McKinley, Gareth H.

Messersmith, Phillip B. ^{[3
]}

Leei, Ka Yee C. ^{[1
,2
]}

机构：

[1] Univ Chicago, Inst Biophys Dynam, Dept Chem, Chicago, IL 60637 USA

[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

[3] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[4] Max Planck Inst Colloids & Interfaces, Dept Biomat, D-14424 Potsdam, Germany

[5] Northwestern Univ, Dept Biomed Engn, Evanston, IL 60208 USA

[6] Northwestern Univ, Chem Life Proc Inst, Evanston, IL 60208 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY B | 2014年 / 2卷 / 17期

基金：

美国国家科学基金会;

关键词：

POLYMER NETWORKS; TRANSIENT NETWORKS; ADHESIVE; CALIFORNICA; COMPLEXES; CHEMISTRY; WATER;

D O I：

10.1039/c3tb21374a

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Growing evidence supports a critical role of dynamic metal-coordination crosslinking in soft biological material properties such as self-healing and underwater adhesion. Using bio-inspired metal-coordinating polymers, initial efforts to mimic these properties have shown promise. Here we demonstrate how bio-inspired aqueous polymer network mechanics can be easily controlled via metal-coordination crosslink dynamics; metal ion-based crosslink stability control allows aqueous polymer network relaxation times to be finely tuned over several orders of magnitude. In addition to further biological material insights, our demonstration of this compositional scaling mechanism should provide inspiration for new polymer material property-control designs.

引用

页码：2467 / 2472

页数：6

共 30 条

[1] pH-Based Regulation of Hydrogel Mechanical Properties Through Mussel-Inspired Chemistry and Processing [J].