Gel-free experiments of reaction-diffusion front kinetics

Sung Hyun Park, Stephen Parus, Raoul Kopelman, Haim Taitelbaum

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We present a gel-free experimental system to study the kinetics of the reaction front in the [formula presented] reaction-diffusion system with initially-separated reactants. The experimental setup consists of a CCD camera monitoring the kinetics of the front formed in the reaction-diffusion process [formula presented] tetra [disodium ethyl bis(5-tetrazolylazo) acetate trihydrate] [formula presented] complex, in aqueous, gel-free solution, taking place inside a 150 μm gap between two flat microscope slides. The experimental results agree with the theoretical predictions for the time dependence of the front’s width, height, and location, as well as the global reaction rate.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical Review E
Issue number5
StatePublished - 2001


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