Spatial bistability of two-dimensional Turing patterns in a reaction-diffusion system

Q. Ouyang, Z. Noszticzius, Harry L. Swinney

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

A Turing bifurcation from an uniform state to a striped patterned state was observed in experiments conducted in a single-phase spatial open gel reactor with the chlorite-iodide-malonic acid-starch (CIMA) reaction; previous experiments had revealed a bifurcation from a uniform state to hexagons rather than stripes. A modified reactor is used to demonstrate that the hexagonal and striped patterns are quasi-two-dimensional; this is further confirmed by a direct measurement of the third dimension of patterns with a camera of high resolution in depth of field. For some range of chemical concentrations the hexagonal and striped patterns are bistable; this is the first evidence of spatial bistability between different Turing structures.

Original languageEnglish
Pages (from-to)6773-6776
Number of pages4
JournalJournal of Physical Chemistry
Volume96
Issue number16
Publication statusPublished - 1992

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Iodides
Starch
reactors
Gels
starches
hexagons
Experiments
Cameras
iodides
Acids
cameras
gels
acids
high resolution
malonic acid
chlorite

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Spatial bistability of two-dimensional Turing patterns in a reaction-diffusion system. / Ouyang, Q.; Noszticzius, Z.; Swinney, Harry L.

In: Journal of Physical Chemistry, Vol. 96, No. 16, 1992, p. 6773-6776.

Research output: Contribution to journalArticle

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