title: Coexistence of wave propagation and oscillation in the photosensitive Belousov-Zhabotinsky reaction on a circular route.
abstract: The photosensitive Belousov-Zhabotinsky (BZ) reaction was investigated on a circular ring, which was drawn using computer software and then projected on a film soaked with BZ solution using a liquid-crystal projector. Under the initial conditions, a chemical wave propagated with a constant velocity on the black ring under a bright background. When the background was rapidly changed to dark, coexistence of the oscillation on part of the ring and propagation of the chemical wave on the other part was observed. These experimental results are discussed in relation to the nature of the photosensitive BZ reaction and theoretically reproduced based on a reaction-diffusion system using the modified Oregonator model.
authors.affiliation: Department of Chemistry, Nara University of Education, Nara 630-8528, Japan. nakatas@nara-edu.ac.jp
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nakata
authors.forename: Sayaka
authors.initials: S
authors.lastname: Morishima
authors.forename: Takatoshi
authors.initials: T
authors.lastname: Ichino
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kitahata
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D003198:Computer Simulation; D056831:Coordination Complexes; D010777:Photochemistry / Q000379:methods*; D017975:Ruthenium Compounds
chemical_list: D015082:2,2'-Dipyridyl; D056831:Coordination Complexes; C547232:tris(2,2-bipyridine)-ruthenium(II); D017975:Ruthenium Compounds