Distance dependent types of coupling of chemical micro-oscillators immersed in a water-in-oil microemulsion

Literature Information

Publication Date 2021-03-18
DOI 10.1039/D1CP00758K
Impact Factor 3.676
Authors

Ilya L. Mallphanov, Vladimir K. Vanag


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Abstract

A system of micro-spheres immersed in a water-in-oil microemulsion (ME) is studied both theoretically and experimentally. A catalyst for the Belousov–Zhabotinsky (BZ) reaction is immobilized in the micro-spheres, which are called BZ micro-oscillators (BZ MOs). The ME is loaded with all the reagents of the BZ reaction, except the catalyst. Fresh BZ reagents in the ME constantly feed BZ MOs. Diffusively coupled BZ MOs in this system demonstrate excitatory coupling at short gaps and inhibitory coupling at long gaps between BZ MOs. The critical gap, at which the transition between excitatory and inhibitory types of coupling occurs, depends on both the BZ concentration and the size of the ME nanodroplets and can range from a few to tens of micrometers. Different oscillatory patterns of BZ MOs with in-phase and anti-phase oscillations of neighboring BZ MOs have been found. Turing patterns are found as well. A network of such BZ MOs can be used for the creation of a chemical computer.

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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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