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Recent publication

National Geographic
An article about our researches was published in National Geographic.
2021.2.24
 self-propelled motion
A paper on self-propelled motion of mercury droplet was published on Scientific Report.
2021.02.02
mathematical model
A paper on mathematical model for self-propelled droplet was published on Physical Review E.
2020.04.09
collective motion
A paper on collective motion of self-propelled metallic particles was published on ACS Nano.
2019.08.09
interfacial dynamics
A paper on interfacial dynamics concerned with self-propelled droplet was published on Langmuir (ACS). Our article was selected as cover art.
2019.08.06
intermittent oscillatory motion
A paper on intermittent oscillatory motion of a camphor disk was published on J. Phys. Soc. Jpn. This paper was selected as Editor’s Choice.
2019.08.06

Research Topic on our Lab.

“Reproducing Life-like Behaviors using Inanimate Materials, and Uncovering Fundamental Mechanisms of Life-like Phenomena”

We challenge to elucidate the universal mechanism by reproducing the characteristic phenomena observed in biological systems without using living materials. In our lab., we focus on “self-propelled motion”, “rhythmic phenomena”, and “pattern formation phenomena”, and try to reproduce such behaviors in non-living systems. Furthermore, we construct mathematical model reproducing such characteristic phenomena and clarify the fundamental and universal mechanism of them.

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Self-propelled Motion

“Micromachines that directly convert chemical energy into kinetic energy”

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Rhythmic Phenomena

“Oscillation repeatedly between two or more different states”

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Pattern
formation
phenomena

“A fascinating phenomenon in which beautiful structures and regular patterns are formed”

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Collaboration

We are mainly collaborating with people who have complementary relationships with our lab.. For example, I am not mathematician and be hard to analyze using advanced mathematical analysis. So, when I have a mathematical model, I consult with a mathematician for joint research. In another case, if molecular analysis is needed, I consult with an expert in analytical chemistry. I have been offered joint research in search of knowledge of nonlinear systems.
In recent years, a Chinese material chemistry expert has provided results for a self-driving system for fine metal particles, but we have been consulted and conducting joint research because we cannot clarify the analysis method and mechanism. I am also interested in collaborative research with biological researchers.
If you are interested, please contact us.

  • E-mail: suematsu(at)meiji.ac.jp
    * Replace “(at)” with “@.”

Original Papers

  1. Gábor Holló,Nobuhiko J. Suematsu, Elliott Ginder, and Istvan Lágzi
    Electric field assisted motion of a mercury droplet
    Scientific Reports 11, 2753 (2021).
    Publication date: February 2, 2021.
    DOI: https://doi.org/10.1038/s41598-020-80375-1

    sample
  2. Chao Zhou,Nobuhiko J. Suematsu, Yixin Peng, Qizhang Wang, Xi Chen, Yongxiang Gao, and Wei Wang
    Coordinating an Ensemble of Chemical Micromotors via Spontaneous Synchronization
    ACS Nano 14, 5360-5370 (2020).
    Publication date: April 9, 2020
    DOI: https://doi.org/10.1021/acsnano.9b08421

    sample
  3. Kota Ohno, Nobuhiko J. Suematsu, and Toshiyuki Ogawa
    Competition between global feedback and diffusion in coupled Belousov-Zhabotinsky oscillators
    Phys. Rev. E 99, 012208 (2019).
    Publication Date: Jan. 10, 2019.
    DOI: https://doi.org/10.1103/PhysRevE.99.012208

    sample
  4. Akiko Nakamasu, Nobuhiko J. Suematsu, Seisuke Kimura
    Asymmetries in leaf branch are associated with differential speeds along growth axes: A theoretical prediction
    Dev. Dynamics 246, 981-991 (2017).
    Accepted: Aug. 9, 2017

    sample
  5. Tomohiro Sasaki, Nobuhiko J. Suematsu, Tatsunari Sakurai, and Hiroyuki Kitahata
    Spontaneous Recurrence of Deposition and Dissolution of a Solid Layer on a Solution Surface
    J. Phys. Chem. B 119, 9970-9974 (2015).
    Accepted: 1 Jul 2015. Published: 1 July 2015.
    Doi: 10.1021/acs.jpcb.5b03413

    sample
  6. Mayuko Iwamoto, Nobuhiko J. Suematsu, and Daishin Ueyama
    "Spontaneous Formation of Unidirectional Path"
    Chem. Phys. Lett. 616-617, 248-253 (2014).
    Available online: 31 October 2014.
    Doi: 10.1016/j.cplett.2014.10.010

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