Title |
Tough bonding of hydrogels to diverse non-porous surfaces
|
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Published in |
Nature Materials, November 2015
|
DOI | 10.1038/nmat4463 |
Pubmed ID | |
Authors |
Hyunwoo Yuk, Teng Zhang, Shaoting Lin, German Alberto Parada, Xuanhe Zhao |
Abstract |
In many animals, the bonding of tendon and cartilage to bone is extremely tough (for example, interfacial toughness ∼800 J m(-2); refs ,), yet such tough interfaces have not been achieved between synthetic hydrogels and non-porous surfaces of engineered solids. Here, we report a strategy to design tough transparent and conductive bonding of synthetic hydrogels containing 90% water to non-porous surfaces of diverse solids, including glass, silicon, ceramics, titanium and aluminium. The design strategy is to anchor the long-chain polymer networks of tough hydrogels covalently to non-porous solid surfaces, which can be achieved by the silanation of such surfaces. Compared with physical interactions, the chemical anchorage results in a higher intrinsic work of adhesion and in significant energy dissipation of bulk hydrogel during detachment, which lead to interfacial toughness values over 1,000 J m(-2). We also demonstrate applications of robust hydrogel-solid hybrids, including hydrogel superglues, mechanically protective hydrogel coatings, hydrogel joints for robotic structures and robust hydrogel-metal conductors. |
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Scientists | 8 | 53% |
Members of the public | 7 | 47% |
Mendeley readers
Geographical breakdown
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Japan | 2 | <1% |
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Germany | 1 | <1% |
Czechia | 1 | <1% |
Switzerland | 1 | <1% |
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Other | 1 | <1% |
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Student > Master | 125 | 13% |
Researcher | 106 | 11% |
Student > Bachelor | 77 | 8% |
Student > Doctoral Student | 64 | 7% |
Other | 100 | 11% |
Unknown | 219 | 23% |
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Materials Science | 164 | 17% |
Chemistry | 126 | 13% |
Chemical Engineering | 38 | 4% |
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Other | 106 | 11% |
Unknown | 255 | 27% |