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High-water-content mouldable hydrogels by mixing clay and a dendritic molecular binder

Author

Listed:
  • Qigang Wang

    (School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan)

  • Justin L. Mynar

    (School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
    ERATO-SORST Nanospace Project, Japan Science and Technology Agency, National Museum of Emerging Science and Innovation, 2-41 Aomi, Koto-ku, Tokyo 135-0064, Japan)

  • Masaru Yoshida

    (Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan)

  • Eunji Lee

    (Seoul National University, 599 Kwanak-ro, Seoul 151-747, Korea)

  • Myongsoo Lee

    (Seoul National University, 599 Kwanak-ro, Seoul 151-747, Korea)

  • Kou Okuro

    (School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan)

  • Kazushi Kinbara

    (School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan)

  • Takuzo Aida

    (School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
    ERATO-SORST Nanospace Project, Japan Science and Technology Agency, National Museum of Emerging Science and Innovation, 2-41 Aomi, Koto-ku, Tokyo 135-0064, Japan)

Abstract

Solid progress for hydrogels Hydrogels are mouldable polymeric materials made mostly of water, used for example as cell tissue cultures and in prosthetics. Hydrogels held together by non-covalent interactions usually have poor mechanical properties, whereas the rather stronger covalently bonded hydrogels cannot self-heal if cut and tend to be brittle. The idea that water-based hydrogels might be developed as environmentally friendly substitutes for conventional petroleum-based plastics in some applications, bringing novel properties with them, comes a little closer with the development of a supramolecular (non-covalent) hydrogel that is a solid thanks to the presence of small quantities of non-water ligands — 3% clay and tiny amounts of an organic binder. This new gel is capable of self-healing, is exceptionally resilient and can be moulded into free-standing shapes that can also be fused together to form more complex architectures.

Suggested Citation

  • Qigang Wang & Justin L. Mynar & Masaru Yoshida & Eunji Lee & Myongsoo Lee & Kou Okuro & Kazushi Kinbara & Takuzo Aida, 2010. "High-water-content mouldable hydrogels by mixing clay and a dendritic molecular binder," Nature, Nature, vol. 463(7279), pages 339-343, January.
    • Handle: RePEc:nat:nature:v:463:y:2010:i:7279:d:10.1038_nature08693
    DOI: 10.1038/nature08693
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    Cited by:

    1. Rui Tian & Shuo Gao & Kaitao Li & Chao Lu, 2023. "Design of mechanical-robust phosphorescence materials through covalent click reaction," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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