Publications


Title : Propagation of Chemical Waves at the Boundary of Excitable and Inhibitory Fields

Language: English
Type: Article
Authors: Konstantin Agladze, Ágota Tóth, Takatoshi Ichino and Kenichi Yoshikawa
Journal: Journal of Physical Chemistry A
ISSN: 1089-5639
Volume: 104
Number: 29
Month: 7
Year: 2000
Actual year: 2000
Pages: 6677-6680
doi:   10.1021/jp9940553
Abstract: The photosensitive Belousov-Zhabotinsky (BZ) reaction with Ru(bpy)(3)(2+) catalyst has been used to study wave propagation and annihilation at the boundaries of excitable and inhibitory regions of an active medium. Depending on the degree of excitability of the two areas, waves can either penetrate into the inhibitory region or collapse in the excitable zone. The experimental trend can be reproduced semiquantitatively with a numerical calculation based on the three-variable Oregonator model modified for the light sensitivity of the reaction. These results suggest that the photosensitive BZ medium may be a useful model for studying the effects of the geometric arrangements between areas of different excitability.

"Propagation of Chemical Waves at the Boundary of Excitable and Inhibitory Fields"

Konstantin Agladze, Ágota Tóth, Takatoshi Ichino and Kenichi Yoshikawa, Journal of Physical Chemistry A, 104, 6677-6680 (2000)