An anisotropic hydrogel with electrostatic repulsion between cofacially aligned nanosheets

Mingjie Liu, Yasuhiro Ishida (), Yasuo Ebina, Takayoshi Sasaki, Takaaki Hikima, Masaki Takata and Takuzo Aida ()
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Mingjie Liu: RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Yasuhiro Ishida: RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Yasuo Ebina: National Institute for Materials Science, International Center for Materials Nanoarchitectonics, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Takayoshi Sasaki: National Institute for Materials Science, International Center for Materials Nanoarchitectonics, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Takaaki Hikima: RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
Masaki Takata: RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
Takuzo Aida: RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Nature, 2015, vol. 517, issue 7532, 68-72

Abstract: Usually materials design focuses on attractive interactions, but here a hydrogel is described whose properties are dominated by electrostatic repulsion between negatively charged titanate nanosheets embedded within it; the material, inspired by articular cartilage, deforms easily when sheared parallel to the sheets but resists compressive forces applied orthogonally.

Date: 2015
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DOI: 10.1038/nature14060

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