Ferroin-Collodion Membranes: Dynamic Concentration Patterns in Planar Membranes

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Science  01 Jun 1973:
Vol. 180, Issue 4089, pp. 946-948
DOI: 10.1126/science.180.4089.946


Patterns and waves of the Belousov-Zhabotinskii reaction are produced in membranes in which one reactant is immobilized. Convection is eliminated, the generation and deformation of wave forms are studied, and patterns are permnanently fixed. Wave shape, frequency, length, and phase velocity are explained theoretically by the interactions of diffusion with reaction.