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Construction of an autonomous supramolecular system involved with hierarchy and its nonlinear dynamics.

Research Project

Project/Area Number 15540377
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionFukuoka University

Principal Investigator

MIYAKAWA Kenji  Fukuoka University, Faculty of Science, Professor, 理学部, 教授 (30037296)

Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥2,900,000 (Direct Cost: ¥2,900,000)
Keywordsself-organization / Belousov-Zhabotinsky reaction / supramolecule / stochastic resonance / 非平衡
Research Abstract

The catalyst ruthenium (II) tris-(2,2'-bipyridine)(Ru(bpy)_3) for Belousov-Zhabotinsky (BZ) reaction was covalently bonded to poly (N-isopropyl acrylamide) (PNIPA). When the poly(PNIPA+-co-Ru(bpy)_3) chain was dissolved into the BZ solution, the periodical coil-globule oscillation occurred. For the purpose to construct a hierarchical structure, we have tried to form microparticles based on poly(PNIPA+-co-Ru(bpy)3) in the BZ solution by the irradiation of an IR laser beam. Then we have observed the autonomous volume oscillation of the, microparticle (diameter【approximately equal】5μm) formed. Furthermore, we have prepared the water-in-oil microemulsion consisting of AOT, octane, and BZ reaction solution as active elements involved an autonomous function. We have provided the difference between the diffusion constant of the activator and that of the inhibitor by controlling external parameters, such as temperature, ionic strength, and volume fraction of droplets. As a result, we have foun … More d various reaction patterns such as the cluster wave and the non-annihilation wave.
We have investigated the effect of hierarchization on self-organization through the stochastic resonance in the supramolecular system consisting of many excitable elements. We have used a one-dimensional array of excitable elements in which Belousov-Zhabotinsky (BZ) reaction was localized. We have found that (1) the degree of coherence of noise-induced oscillation is increased with increasing the number of elements, (2) phase locking between largely separated elements not interacting directly with each other is achieved via irregular oscillations of elements interposed between them, and (3) phase locking in a one-dimensional array of excitable elements is induced via coherence resonance of the first element. For a numerical simulation we have approximated the present system as a one-dimensional system consisting of four interacting excitable elements separated by an inactive area, i.e., a diffusion area. Experimental observations have been approximately reproduced in the numerical simulation with the three-variable Oregonator reaction-diffusion model modified to take into account the effects of an external electric noise. Less

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (15 results)

All 2005 2004 2003 Other

All Journal Article (13 results) Publications (2 results)

  • [Journal Article] Raman study of a liquid crystalline gel consisting of photochromic 4-methyl-N-(4-n-heptyloxysalicylidene)aniline and a gelling agent (R,R')-1,2-bis(dodecanoylamino)cyclohexane2005

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Liquid Crystals (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Noise-induced spatiotemporal dynamics in a linear array of excitablechemical oscillators2005

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Phys.Rev.E (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Raman study of a liquid crystalline gel consisting of photochromic 4-methyl-N-(4-n-heptyloxysalicylidene)aniline and a gelling agent (R, R')-1,2-bis(dodecanoylamino)cyclohexane2005

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Liquid Crystals (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Noise-induced spatiotemporal dynamics in a linear array of excitable chemical oscillators2005

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Phys.Rev.E (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Rotation of two-dimensional arrays of microparticles trapped by circularly polarized light2004

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Applied Physics Letters 84

      Pages: 5440-5442

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Noise-induced phase locking in coupled coherence resonance oscillators2004

    • Author(s)
      Masako Ohtaki
    • Journal Title

      Phys.Rev.E 70

      Pages: 562191-562195

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Noise-induced phase locking in coupled coherence resonance oscillators2004

    • Author(s)
      Masako Ohtaki
    • Journal Title

      Phys. Rev. E 70

      Pages: 562191-562195

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Dynamics of a stochastic oscillator in an excitable chemical reaction system2003

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Phys.Rev.E 67

      Pages: 662061-562064

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Synchronization of Chemical Waves in Diffusively Coupled Self-Oscillation Gels2003

    • Author(s)
      Fumitaka Sakamoto
    • Journal Title

      J.Phys.Soc.Jpn. 72

      Pages: 2173-2176

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Dynamics of a stochastic oscillator in an excitable chemical reaction system2003

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      Phys. Rev. E 67

      Pages: 662061-662064

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Synchronization of Chemical Waves in Diffusively Coupled Self-Oscillation Gels2003

    • Author(s)
      Fumitaka Sakamoto
    • Journal Title

      J. Phys. Soc. Jpn. 72

      Pages: 2173-2176

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Raman study of a liquid crystalline gel consisting of photochromic 4-methyl-N-(4-n- heptyloxysalicylidene)aniline and a gelling agent (R, R')-1,2-bis(dodecanoylamino) -cyclohexane

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Noise-induced spatiotemporal dynamics in a linear array of excitable chemical oscillators

    • Author(s)
      Kenji Miyakawa
    • Journal Title

      (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Fumitaka Sakamoto: "Synchronization of Chemical Waves in Diffusively Coupled Self-Oscillation Gels"J.Phys.Soc.Jpn.. 72・9. 2173-2176 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kenji Miyakawa: "Dynamics of a stochastic oscillator in an excitable chemical reaction system"Phys.Rev.E. 67. 0662061-0562064 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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