Controlled pattern formation in the CDIMA reaction with a moving boundary of illumination

Literature Information

Publication Date 2002-03-13
DOI 10.1039/B109387H
Impact Factor 3.676
Authors

Mads Kærn, Razvan Satnoianu, Alberto P. Muñuzuri, Michael Menzinger


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Abstract

A reaction–diffusion (RD) system that grows axially as one of its boundaries moves is equivalent to a boundary-forced open flow in which all species have identical flow coefficients. Depending on the flow or growth rate, ϕ, and on the intrinsic spreading velocity, c0, of the RD structure, such systems are either absolutely (ϕ < c0) or convectively (ϕ > c0) unstable. We previously showed how periodic boundary forcing of an axially growing domain could be used to control the formation of space-periodic structures in biological morphogenesis. This paper proposes, as a chemical equivalent of an axially growing embryo, the design of a continuously fed unstirred flow reactor (CFUR), characterized by a photo-chemically controlled moving boundary. Using the Turing-unstable CDIMA system as an example, we illustrate by simulations the kinds of wave structures that are expected to arise in the absolutely and convectively unstable regimes when boundary forcing is either constant or time-periodic.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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