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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(D.Eng.)

Our team aims to create water-based materials, referred to as aqua materials, as replacements for conventional plastics. Taking advantage of their unique properties as moldable, portable water, together with the elaboration of their inner or surface parts, we will demonstrate their various applications as intelligent soft materials. We are employing a wide range of chemicals as the components of aqua materials, in order to improve their properties and to ultimately realize environment-conscious materials. Our challenge also includes the rational design of novel bio-inspired materials, by assembling molecules with dynamic and static functions within aqua materials used as scaffolds.

Main Research Fields

  • Chemistry


  • Self assembly
  • Biomimetics
  • Soft material
  • Stimuli-responsive material
  • Environmentally friendly material

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

  • 1.Sano, K., Kim, Y. S., Ishida, Y., Ebina, Y., Sasaki, T., Hikima, T., and Aida, T.
    "Photonic Water Dynamically Responsive to External Stimuli"
    Nature Communications 2016, 7, 12559.
  • 2.Matsui, R., Ohtani, M., Yamada, K., Hikima, T., Takata, M., Nakamura, T., Koshino, H., Ishida, Y., and Aida, T.:
    "Chemically Locked Bicelles with High Thermal and Kinetic Stability"
    Angewandte Chemie International Edition 54, 13284–13288 (2015).
  • 3.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"
    Nature Communications 2015, 6, 8418.
  • 4.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"
    Nature Materials 14, 1002–1007 (2015).
  • 5.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, 68–74 (2015).
  • 6.Wu, L., Ohtani, M., Takata, M., Saeki, A., Seki, S., Ishida, Y., and Aida, T.:
    "Magnetically Induced Anisotropic Orientation of Graphene Oxide Locked by in Situ Hydrogelation"
    ACS Nano 8, 4640–4649 (2014).
  • 7.Tamesue, S., Ohtani, M., Yamada, K., Ishida, Y., Spruell, J. M., Lynd, N. A., Hawker, C. J., and Aida, T.:
    "Linear versus Dendritic Molecular Binders for Hydrogel Network Formation with Clay Nanosheets: Studies with ABA Triblock Copolyethers Carrying Guanidinium Ion Pendants"
    Journal of the American Chemical Society 135, 15650–15655 (2013).
  • 8.Liu, M., Ishida, Y., Ebina, Y., Sasaki, T., and Aida, T.:
    "Photolatently Modulable Hydrogels using Unilamellar Titania Nanosheets as Photocatalytic Crosslinkers"
    Nature Communications 4, 2029 (2013).
  • 9.Maggini, L., Liu, M., Ishida, Y., and Bonifagi, D.:
    "Anisotropically Luminescent Hydrogels Containing Magnetically-aligned MWCNTs-Eu(III) Hybrids"
    Advanced Materials 25, 2462–2467 (2013).
  • 10.Ishida, Y., Matsuoka, Y., Kai, Y., Yamada, K., Nakagawa, K., Asahi, T., and Saigo, K.:
    "Metastable Liquid Crystal as Time-responsive Reaction Medium: Aging-induced Dual Enantioselective Control"
    Journal of the American Chemical Society 135, 6407–6410 (2013).

Recent Research Results

Related Links

Lab Members

Principal investigator

Yasuhiro Ishida
Team Leader

Core members

Kuniyo Yamada
Expert Technician
Krishnachary Salikolimi
Postdoctoral Researcher
Xiang Wang
Postdoctoral Researcher
Koki Sano
Special Postdoctoral Researcher
Noriko Horimoto
Technical Staff I
Prathap Annamalai
Visiting Researcher
Yiyang Zhan
Visiting Researcher
Zhifang Sun
Visiting Scientist
Hayato Kanai
Junior Research Associate
Zhihao Li
Student Trainee
Shuxu Wang
Student Trainee
Jungho Lee
Student Trainee

Contact Information

106, Frontier Material Research Facilities, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Tel: +81-(0)48-462-1111
(ext. 6351)
Fax: +81-(0)48-467-8214
Email: y-ishida [at] riken.jp