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RIKEN Center for Emergent Matter Science Emergent Bioinspired Soft Matter Research Team

Team Leader: Yasuhiro Ishida (D.Eng.)

Research Summary

Yasuhiro Ishida

Soft materials are lightweight, flexible, and biomimetic , and therefore have attracted increasing attention. However, when comparing artificial and natural soft materials, the structure of the former is isotropic, while the latter is anisotropic. Natural soft materials, such as muscles and nerves, perform amazing functions due to this anisotropy. Inspired by them, we develop anisotropic soft materials by in-situ synthesis under external fields such as magnetic fields. In the resulting materials, the mutual interference between the constituents is maximized, leading to special properties and functions. Recently, we have also been developing materials with autonomy and polarity, which are even closer to the living body.

Main Research Fields

  • Chemistry

Related Research Fields

  • Engineering
  • Polymer composites
  • Biopolymers
  • Gel


  • Soft materials
  • Biomimetics
  • Anisotropy
  • Gels
  • Colloids

Selected Publications

  • 1. Wang, X., Li, Z., Wang, S., Sano, K., Sun, Z., Shao, Z., Takeishi, A., Matsubara, S., Okumura, D., Sakai, N., Sasaki, T., Aida, and Ishida, Y.
    "Mechanical non-reciprocity in a uniform composite material"
    Science 380, 192-198 (2023).
  • 2. Zhan, Y.-Y., Ogawa, D., Sano, K., Wang, X., Araoka, F., Sakai, N., Sasaki, T., and Ishida, Y.
    "Reconfigurable photonic crystal reversibly exhibiting single and double structural colors"
    Angew. Chem. Int. Ed. 62, e202311451 (2023).
  • 3. Sano, K., Wang, X., Sun, Z., Aya, S., Araoka, F., Ebina, Y., Sasaki, T., Ishida, Y., and Aida, T.
    "Propagating wave in a fluid by coherent motion of 2D colloids"
    Nat. Commun. 12, 6771 (2021).
  • 4. Yamauchi, Y., Horimoto, N. N., Yamada, K., Matsushita, Y., Takeuchi, M., and Ishida, Y.
    "Two‐step divergent synthesis of monodisperse and ultra‐long bottlebrush polymers from an easily purifiable ROMP monomer"
    Angew. Chem. Int. Ed. 60, 1528-1534 (2021).
  • 5. Salikolimi, K., Praveen, V. K., Sudhakar, A. A., Yamada, K., Horimoto, N. N., and Ishida, Y.
    "Helical supramolecular polymers with rationally designed binding sites for chiral guest recognition"
    Nat. Commun. 11, 2311 (2020).
  • 6. Sano, K., Igarashi, N., Ebina, Y., Sasaki, T., Hikima, T., Aida, T., and Y. Ishida.
    "A mechanically adaptive hydrogel with a reconfigurable network consisting entirely of inorganic nanosheets and water"
    Nat. Commun. 11, 6026 (2020).
  • 7. Cho, J. and Ishida, Y.
    "Macroscopically oriented porous materials with periodic ordered structures: from zeolites and metal-organic frameworks to liquid crystal-templated mesoporous materials"
    Adv. Mater. 29, 1605974 (2017).
  • 8. Li, C., Cho, J., Yamada, K., Hashizume, D., Araoka, F., Takezoe, H., Aida, T., and Ishida, Y.
    "Macroscopic ordering of helical pores for arraying guest molecules noncentrosymmetrically"
    Nat. Commun. 6, 8418 (2015).
  • 9. Kim, Y. S., Liu, M., Ishida, Y., Ebina, Y., Osada, M., Sasaki, T., Hikima, T., Takata, M., and Aida, T.
    "Thermoresponsive actuation enabled by permittivity switching in an electrostatically anisotropic hydrogel"
    Nat. Mater. 14, 1002-1007 (2015).
  • 10. Liu, M., Ishida, Y., Ebina, Y., Sasaki, T., Hikima, T., Takata, M. and Aida, T.
    "An anisotropic hydrogel with electrostatic repulsion between cofacially aligned nanosheets"
    Nature 517, 68-72 (2015).

Recent Research Results

Related Links

Lab Members

Principal investigator

Yasuhiro Ishida
Team Leader

Core members

Xiang Wang
Research Scientist
Qifeng Mu
Postdoctoral Researcher
Yunlei Zhang
Postdoctoral Researcher
Kuniyo Yamada
Expert Technician
Hayato Kanai
Technical Staff I
Chia-Hsin Lin
International Program Associate
Shuxu Wang
Student Trainee
Xiaoyao Wei
Student Trainee
Yitong Xie
Student Trainee


Position Deadline
Seeking a Postdoctoral Researcher (W24074) Open until filled

Contact Information

Frontier Material Research Facilities,
2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Tel: +81-(0)48-462-1111
(ext. 91-6351)
Email: y-ishida [at] riken.jp