Metal-coordination: using one of nature's tricks to control soft material mechanics
Author(s)Holten-Andersen, Niels; Jaishankar, Aditya; Harrington, Matthew J.; Fullenkamp, Dominic E.; DiMarco, Genevieve; He, Lihong; McKinley, Gareth H.; Messersmith, Phillip B.; Lee, Ka Yee C.; ... Show more Show less
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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.
DepartmentMassachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal of Materials Chemistry B
Royal Society of Chemistry
Holten-Andersen, Niels, Aditya Jaishankar, Matthew J. Harrington, Dominic E. Fullenkamp, Genevieve DiMarco, Lihong He, Gareth H. McKinley, Phillip B. Messersmith, and Ka Yee C. Lee. “Metal-Coordination: Using One of Nature’s Tricks to Control Soft Material Mechanics.” Journal of Materials Chemistry B 2, no. 17 (2014): 2467.
Author's final manuscript