Issue 17, 2014
From the journal:

Journal of Materials Chemistry B

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

Niels Holten-Andersen,‡*a   Aditya Jaishankar,b   Matthew J. Harrington,c   Dominic E. Fullenkamp,d   Genevieve DiMarco,e   Lihong He,f   Gareth H. McKinley,g   Phillip B. Messersmithh  and  Ka Yee C. Leei  

* Corresponding authors

a Department of Chemistry, Institute for Biophysical Dynamics, and the James Franck Institute, The University of Chicago, Chicago, IL 60637, USA

b Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
E-mail: adityaj@mit.edu

c Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
E-mail: Matt.Harrington@mpikg.mpg.de

d Department of Biomedical Engineering and Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
E-mail: dominic-fullenkamp@fsm.northwestern.edu

e Department of Chemistry, Institute for Biophysical Dynamics, and the James Franck Institute, The University of Chicago, Chicago, IL 60637, USA
E-mail: vividcolorsglg@yahoo.com

f Department of Biomedical Engineering and Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
E-mail: lihong-he@northwestern.edu

g Department of Biomedical Engineering and Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
E-mail: philm@northwestern.edu

h Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
E-mail: gareth@mit.edu

i Department of Chemistry, Institute for Biophysical Dynamics, and the James Franck Institute, The University of Chicago, Chicago, IL 60637, USA
E-mail: kayeelee@uchicago.edu

Abstract

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.

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

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Article information

DOI
https://doi.org/10.1039/C3TB21374A
Article type
Communication
Submitted
03 अक्तूबर 2013
Accepted
13 नवम्बर 2013
First published
13 नवम्बर 2013

J. Mater. Chem. B, 2014,2, 2467-2472

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

N. Holten-Andersen, A. Jaishankar, M. J. Harrington, D. E. Fullenkamp, G. DiMarco, L. He, G. H. McKinley, P. B. Messersmith and K. Y. C. Lee, J. Mater. Chem. B, 2014, 2, 2467 DOI: 10.1039/C3TB21374A

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