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Cited by 437

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Hybrid Hydrogels with Extremely High Stiffness and Toughness

Open access
Li, Jianyu, Illeperuma, Widusha R. K., Suo, Zhigang, Vlassak, Joost J.·2014·ACS Macro Letters
DOI 10.1021/mz5002355
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Abstract

The development of hydrogels for cartilage replacement and soft robotics has highlighted a challenge: load-bearing hydrogels need to be both stiff and tough. Several approaches have been reported to improve the toughness of hydrogels, but simultaneously achieving high stiffness and toughness remains difficult. Here we report that alginate-polyacrylamide hydrogels can simultaneously achieve high stiffness and toughness. We combine short- and long-chain alginates to reduce the viscosity of pregel solutions and synthesize homogeneous hydrogels of high ionic cross-link density. The resulting hydrogels can have elastic moduli of ∼1 MPa and fracture energies of ∼4 kJ m –2 . Furthermore, this approach breaks the inverse relation between stiffness and toughness: while maintaining constant elastic moduli, these hydrogels can achieve fracture energies up to ∼16 kJ m –2 . These stiff and tough hydrogels hold promise for further development as load-bearing materials.

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Metadata

Authors
Li, J., Illeperuma, W. R. K., Suo, Z., & Vlassak, J. J.
Venue
ACS Macro Letters
Publisher
American Chemical Society (ACS)
Published
2014-05-19
Volume
3
Issue
6
Pages
520-523
ISSN
2161-1653 (ISSN-L)
DOI
10.1021/mz5002355
OpenAlex
W2115504193
Cited by
437
References
38
FWCI
12.82
Type
journal article
Language
en
Open access
green

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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