Appearance and suppression of Turing patterns under a periodically forced feed.

Autor: Dúzs B; Laboratory of Nonlinear Chemical Dynamics, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, H-1117, Budapest, Hungary.; University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany., Holló G; ELKH-BME Condensed Matter Research Group, Műegyetem rkp. 3, H-1111, Budapest, Hungary., Kitahata H; Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba, 263-8522, Japan., Ginder E; School of Interdisciplinary Mathematical Sciences, Graduate School of Advanced Mathematical Sciences, and Meiji Institute for Advanced Study of Mathematical Sciences (MIMS), Meiji University, 4-21-1, Nakano, Tokyo, 164-8525, Japan., Suematsu NJ; School of Interdisciplinary Mathematical Sciences, Graduate School of Advanced Mathematical Sciences, and Meiji Institute for Advanced Study of Mathematical Sciences (MIMS), Meiji University, 4-21-1, Nakano, Tokyo, 164-8525, Japan., Lagzi I; ELKH-BME Condensed Matter Research Group, Műegyetem rkp. 3, H-1111, Budapest, Hungary. lagzi.istvan.laszlo@ttk.bme.hu.; Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111, Budapest, Hungary. lagzi.istvan.laszlo@ttk.bme.hu., Szalai I; Laboratory of Nonlinear Chemical Dynamics, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, H-1117, Budapest, Hungary. istvan.szalai@ttk.elte.hu.
Jazyk: angličtina
Zdroj: Communications chemistry [Commun Chem] 2023 Jan 03; Vol. 6 (1), pp. 3. Date of Electronic Publication: 2023 Jan 03.
DOI: 10.1038/s42004-022-00800-6
Abstrakt: Turing instability is a general and straightforward mechanism of pattern formation in reaction-diffusion systems, and its relevance has been demonstrated in different biological phenomena. Still, there are many open questions, especially on the robustness of the Turing mechanism. Robust patterns must survive some variation in the environmental conditions. Experiments on pattern formation using chemical systems have shown many reaction-diffusion patterns and serve as relatively simple test tools to study general aspects of these phenomena. Here, we present a study of sinusoidal variation of the input feed concentrations on chemical Turing patterns. Our experimental, numerical and theoretical analysis demonstrates that patterns may appear even at significant amplitude variation of the input feed concentrations. Furthermore, using time-dependent feeding opens a way to control pattern formation. The patterns settled at constant feed may disappear, or new patterns may appear from a homogeneous steady state due to the periodic forcing.
(© 2023. The Author(s).)
Databáze: MEDLINE
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