Apex of a V-shaped cut field acts as a pacemaker on an oscillatory system

Ikuko N. Motoike, Satoshi Nakata, Yasutaka Iguchi, Kaori K. Takemura, Kumiko Hayashi, Kenichi Yoshikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The generation and propagation of chemical waves in the Belousov-Zhabotinsky (BZ) reaction were investigated using a cation-exchange membrane embedded with a metal catalyst as a 2-dimensional oscillatory/active field. We found that a target pattern is generated from the top of a V-shape, indicating that the apex on the boundary between active and passive fields behaves as a pacemaker. A Plausible mechanism for this phenomenon is proposed based on a reaction-diffusion equation.

Original languageEnglish
Pages (from-to)238-241
Number of pages4
JournalChemical Physics Letters
Volume490
Issue number4-6
DOIs
Publication statusPublished - 2010 Apr 26
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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