Flucto-Order Functions Research Team

Team Leader

Masahiko Hara

  • D.Eng.
  • Masahiko Hara
  • Brief resume
    1988
    D.Eng., Tokyo Institute of Technology
    1985
    Research Scientist, Polymer Chemistry Laboratory, RIKEN
    1991
    Deputy Head, Laboratory for Exotic Nano-Materials, RIKEN
    1999
    Laboratory Head, Local Spatio-Temporal Functions Laboratory, RIKEN
    2001
    Adjunct Professor, Department of Chemistry, Hanyang University, Korea (-current)
    2003
    Professor, Department of Electronic Chemistry, Tokyo Institute of Technology (-current)
    2007
    Laboratory Head, Emergent Functions Asian Collaboration Laboratory, RIKEN
    2009
    Director, RIKEN-HYU Collaboration Research Center, RIKEN (-current)
    2011
    Director, Corporate & International Relations Division, RIKEN (-current)

Outline

Flucto-Order Functions Research Team

We are aiming at utilization of fluctuation and instability, to realize emergent information processing based on emergent behavior of massively parallel self-organized bio-molecular elements, and to develop unconventional devices with functions activated in dynamic non-equilibrium states. We are investigating the spatio-temporal dynamics and computational capability of the amoeba of the true slime mold Physarum for establishment of a novel computing scheme. We are also developing artificial non-biological materials and devices for unconventional computation inspired by Physarum and other organisms, through the combination of pattern-rhythm formations in nonlinear self-organized materials and external feedback systems.

Recent Research Topic

Development of BioComputers
Fig. 2
Development of BioComputers
Fig. 1
Development of BioComputers
Fig. 3: Development of BioComputers
Fig. 3
Reproduced, with permission, from M. Aono, S-J. Kim, L. Zhu, E. Nameda, M. Hara, Amoeba-based Computer and its Probability Exploration Model, No.12 Special Issue on Advanced Applications of Probability Theory in Systems, Control and Information, 2011, 55, 526. © (2012) ISCIE
 
Reproduced, with permission, from M. Aono, Y. Hirata, M. Hara, K. Aihara, Amoeba-based chaotic neurocomputing: Combinatorial optimization by coupled biological oscillators, New Generation Comput. 2009, 27, 129. © (2012) Ohmsha, Ltd.
 
Reproduced, with permission, from M. Aono, M. Hara, K. Aihara, T. Munakata, Amoeba-based emergent computing: Combinatorial optimization and autonomous meta-problem solving, Int. J. Unconventional Comput. 2010, 6, 89. © (2012) Old City Publishing, Inc.
 
Reproduced, with permission, from K. Ozasa, M. Aono, M. Maeda, M. Hara, Simulation of neurocomputing based on the photophobic reactions of Euglena with optical feedback stimulation, BioSystems 2010, 100, 101. © (2012) Elsevier
 
Reproduced, with permission, from S.-J. Kim, M. Aono, M. Hara, Tug-of-war model for the two-bandit problem: Nonlocally-correlated parallel exploration via resource conservation, BioSystems 2010, 101, 29. © (2012) Elsevier

Selected Publications

  1. H. Kang, N. -S. Lee, E. Ito, M. Hara, J. Noh, Formation and superlattice of long-range-ordered self-assembled monolayers of pentafluorobenzenethiols on Au(111), Langmuir Lett, 2010, 26, 2983.
  2. J. Noh, E. Ito, M. Hara, Self-assembled monolayers of benzenehiol and benzenemethanethiol on Au(111): influence of an alkyl spacer on the structure and thermal desorption behavior, J. Colloid and Interface Science 2010, 342, 513.
  3. E. Ito, H. Ito, T. Isoshima, M. Hara, Surface potential switching of Au-deposited p-sexiphenyl film controlled by visible light irradiation, Jpn. J. Appl. Phys. 2010, 49, 1, 01AE11-1.
  4. S. -J. Kim, M. Aono, M. Hara, Tug-of-war model for the two-bandit problem: nonlocally-correlated parallel exploration via resource conservation, BioSystems 2010, 101, 29.
  5. Y. Okabayashi, E. Ito, T. Isoshima, H. Ito, M. Hara, Negative giant surface potential of peeled Alq3 thin film, Thin Solid Films 2009, 518, 839.
  6. H. Kang, et al. Formation of large ordered domains in benzenethiol self-assembled monolayers on Au(111) observed by scanning tunneling microscopy, Ultramicroscopy 2009, 109, 1011.
  7. Y. Ikezoe, S. Kim, I. Yamashita, M. Hara, Random number generation by a two-dimensional crystal of protein molecules, Langmuir 2009, 25, 4293.
  8. E. Ito, J. Noh, M. Hara, Steric effects on adsorption and desorption behaviors of alkanethiol self-assembled monolayers on Au(111), Chem. Phys. Lett. 2008, 462, 209.
  9. M. Aono, M. Hara, Spontaneous deadlock breaking on amoeba-based neurocomputer, BioSystems 2008, 91, 83.
  10. Y. Choi, et al. Formation of ordered self-assembled monolayers by adsorption of octylthiocyanates on Au(111), Langmuir 2008, 24, 91.

Core Members

Principal Investigator add delete
Masahiko Hara Team Leader (Director, Corporate & International Relations Division)    
Staff Scientist add delete
Kazunari Ozasa Senior Research Scientist (Senior Research Scientist, Bioengineering Laboratory)    
Takashi Isoshima Senior Research Scientist 　  
Takafumi Sassa Senior Research Scientist 　  
Eisuke Ito ASI Research Scientist 　  
Masashi Aono ASI Research Scientist 　  
Song-Ju Kim ASI Research Scientist 　  
Postdoctoral Fellow add delete
Etsushi Nameda Postdoctoral Researcher    
Takashi Fujihara Postdoctoral Researcher    
Asaki Nishikawa Postdoctoral Researcher    
Student Trainee add delete
Yuki Hasegawa Technical Staff I    
Hiromi Ito Technical Staff I    
Technical Assistant add delete
Administrative Assistant add delete
Visiting Research Staff add delete
Sang Yun Lee Visiting Scientist    
Other Staff add delete

( ) indicates primary affiliation in RIKEN.

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