AMEMIYA Takashi

Affiliation

Faculty of Environment and Information Sciences, Division of Natural Environment and Information

Job Title

Professor

Date of Birth

1964

Research Fields, Keywords

nonlinear, non-equilibrium, complex systems, nonlinear chemical reaction, bioligical oscillations

Mail Address

E-mail address



ORCID  https://orcid.org/0000-0002-3098-3875

Degree 【 display / non-display

  • Doctor of Engineering -  The University of Tokyo

Campus Career 【 display / non-display

  • 2011.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Environment and Information Sciences   Division of Natural Environment and Information   Professor  

  • 2007.04
    -
    2011.03

    Duty   Yokohama National UniversityResearch Institute of Environment and Information Sciences   Division of Natural Environment and Information   Associate Professor  

  • 2002.04
    -
    2007.03

    Duty   Yokohama National UniversityResearch Institute of Environment and Information Sciences   Division of Natural Environment and Information   Associate Professor  

  • 2018.04
    -
    Now

    Concurrently   Yokohama National UniversityGraduate School of Environment and Information Sciences   Department of Artificial Environment   Professor  

  • 2011.04
    -
    Now

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Professor  

display all >>

External Career 【 display / non-display

  • 2001.04
    -
    2002.03

    National Institute of Advanced Industrial Science and Technology   Nanotechnology Research Institute   Senior Researcher  

  • 1996.09
    -
    2001.03

    National Institute of Materials and Chemical Resarch   Department of Chemical Systems   Senior Researcher  

  • 1995.05
    -
    1996.08

    West Virginia University, U.S.A.   Department of Chemistry   Post Doctoral Fellow  

  • 1993.04
    -
    1995.04

    National Institute of Materials and Chemical Resarch   Department of Chemical Systems   Researcher  

Academic Society Affiliations 【 display / non-display

  • 1988
     
     
     

    Chemical Society of Japan

  • 1988
     
     
     

    Electrochemical Society of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Life / Health / Medical informatics

  • Nonlinear Chemistry

  • Biological physics/Chemical physics/Soft matter physics

  • Green/Environmental chemistry

  • Basic chemistry

display all >>

 

Research Career 【 display / non-display

  • Nonlinear Chemical Reaction

    Basic Science Research Program  

    Project Year:  -   

     View Summary

    Nonlinear dynamics in chemical reactions, biochemical systems, and material sciences.

  • Oscillations in cells, Synchronization between cells

    Basic Science Research Program  

    Project Year:  -   

     View Summary

    Glycolytic oscillations in cancer cells

  • Nonlinear dynamics

    The Other Research Programs  

    Project Year:  -   

Books 【 display / non-display

  • Nonlinear Behavior of a Self-Propelled Droplet Coupled with a Chemical Oscillatory Reaction

    N. J. Suematsu, Y. Mori, T. Amemiya, S. Nakata (Part: Joint Work )

    Springer  2018 ISBN: 3319643347

  • Nonlinear phenomena during the oxidation and bromination of pyrocatechol

    Takashi Amemiya and Jichang Wang (Part: Joint Work )

    インテック  2010.01 ISBN: 9789537619619

     View Summary

    化学反応における非線形振動現象

  • Mathematical models for dynamics and management of algal blooms in aquatic ecosystems

    T. Amemiya, H. Serizawa, T. Sakajo, K. Itoh (Part: Joint Work )

    NOVA  2009 ISBN: 9781606927724

  • Biomimetic sensing in excitable media: constructive role of noise and periodic fluctuations

    T. Amemiya and T. Yamaguchi (Part: Joint Work )

    Chemical Analysis Based on Nonlinearity, Nova Science Publishers, Inc.  2003.07

  • Chemical Analysis Based on Nonlinearity

    (Part: Contributor )

    NOVA  2003

Papers 【 display / non-display

  • Effect of Cu on the fluorescence of the Cu-hyperaccumulator lichen Stereocaulon sorediiferum

    Hiromitsu Nakajima, Naoki Fujimoto, Yoshikazu Yamamoto, Takashi Amemiya, Kiminori Itoh

    Environmental Science and Pollution Research ( Springer )  26   36754 - 36763   2019.11  [Refereed]

    Joint Work

  • Seed-mediated gold nanoparticle synthesis via photochemical reaction of benzoquinone

    Yasuhiko Ohara, Keita Akazawa, Kenichi Shibata, Tesuya Hirota, Yojiro Kodama, Takashi Amemiya, Jich … Show more authors

    Colloids and Sufrfaces A ( Elsevier )  586   124209(1) - 124209(7)   2019.11  [Refereed]

    Joint Work

  • River challel networks created by Poisson equation and inhomogeneous permeability model (II): Horton's law and fractality

    Hiroshi Serizawa, Takashi Amemiya, Kiminori Itoh

    J. Adv. Simulat. Sci. Eng. ( Japan Society for Simulation Technology )  6 ( 2 )   386 - 415   2019.11  [Refereed]

    Joint Work

    DOI

  • Chemical wave propagation in the Belousov-Zhabotinsky reaction controlled by electrical potential

    Masakazu Kuze, Mari Horisaka, Nobuhiko J. Suematsu, Takashi Amemiya, Oliver Steinbock, Satoshi Naka … Show more authors

    J. Phys. Chem. A ( American Chemical Society )  123   4853 - 4857   2019.05  [Refereed]

    Joint Work

    DOI

  • Modeling studies of heterogeneities in glycolytic oscillations in HeLa cervical cancer cells

    Takashi Amemiya, Kenichi Shibata, Yichen Du, Satoshi Nakata, Tomohiko Yamaguchi

    Chaos: An Interdisciplinary Journal of Nonlinear Science ( American Institute of Physics )  29   033132-1 - 033132-10   2019.03  [Refereed]

    Joint Work

     View Summary

    Previous experiments demonstrated that a population of HeLa cells starved of glucose or both glucose and serum exhibited a strong heterogeneity in the glycolytic oscillations in terms of the number of oscillatory cells, periods of oscillations, and duration of oscillations. Here, we report numerical simulations of this heterogeneous oscillatory behaviors in HeLa cells by using a newly developed mathematical model. It is simple enough that we can apply a mathematical analysis, but captures the core of the glycolytic pathway and the activity of the glucose transporter (GLUT). Lognormal distributions in the values of the four rate constants in the model were obtained from the experimental distributions in the periods of oscillations. Thus, the heterogeneity in the periods of oscillations can be attributed to the difference in the rate constants of the enzymatic reactions. The activity of GLUT is found to determine whether the HeLa cells were oscillatory or non-oscillatory under the same experimental conditions. Simulation with log-normal distribution of the maximum uptake velocity of glucose and the four randomized rate constants based on the log-normal distributions successfully reproduced the time-dependent number of oscillatory cells (oscillatory ratios) under the two starving conditions. The difference in the initial values of the metabolites has little effect on the simulated results.

    DOI

display all >>

Review Papers 【 display / non-display

  • Manufacturing new materials based on diversity in nature -pattern formation using nonlinearity under nonequilibrium conditions -

    Chemistry and Education   51 ( 10 ) 614 - 615   2003.10

    Introduction and explanation (scientific journal)   Joint Work

  • Dynamic biomimetics

    Chemical Industry   53 ( 1 ) 18 - 23   2002.01

    Introduction and explanation (scientific journal)   Joint Work

  • Chemical oscillations and information transfer

    N.T.S.     252 - 259   2000

    Introduction and explanation (others)   Joint Work

  • Belousov-Zhabotinsky reaction and information processing

      28 ( 6 ) 312 - 318   1999

    Introduction and explanation (scientific journal)   Joint Work

Grant-in-Aid for Scientific Research 【 display / non-display

  • Studies of glycolytic oscillations and their synchronization in cancer cells and astrocytes

    Grant-in-Aid for Scientific Research(B)

    Project Year: 2019.04  -  2022.03  Investigator(s): Takashi Amemiya

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2014.04  -  2017.03  Investigator(s): Takashi Amemiya

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2008.04  -  2011.03  Investigator(s): Takashi Amemiya

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2005.04  -  2007.03  Investigator(s): Takashi Amemiya

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2017.07  -  2020.03 

display all >>

Preferred joint research theme 【 display / non-display

  • Metabolic oscillations in cancer cells

  • Metabolic oscillations in cells

  • Modeling studies of metabolic oscillations in cells

Past of Collaboration and Commissioned Research 【 display / non-display

  • Conservation ecology based on multistability and material-recycling in lake ecosystems

    Cooperative Research within Japan  

    Project Year: 2005.04  -  2008.03 

 

Social Contribution(Extension lecture) 【 display / non-display

  • International Workshop, Symposium on Nonlinear Sciences -The History for 30 years and Vision for The Future-

    2016.09
     
     

  • A symposium in the 2005 international chemical congress of pacific basin societies

    2005.12
     
     

  • International conference on nonlinear dynamics in polymer science and related field

    1999.10
     
     

  • Japan-Hungary joint symposium on complex chmical dynamics in polymer matrices

    1997.09
     
     

  • International workshop on dynamism and regulation in nonlinear chemical systems

    1994.03