https://doi.org/10.1140/epjs/s11734-025-01506-1
Regular Article
A chemical diode for neuromorphic computing: design, simulation, and experimental validation of unidirectional signal transmission
1
Center for Applied Nonlinear Dynamics, Immanuel Kant Baltic Federal University, Nevskogo St. 14, 236041, Kaliningrad, Russia
2
Saint-Petersburg State Research Institute of Phthisiopulmonology, Ligovsky Ave. 2-4, 194064, Saint Petersburg, Russia
Received:
1
November
2024
Accepted:
6
February
2025
Published online:
18
March
2025
The propagation of waves in a reaction–diffusion system based on the Belousov–Zhabotinsky (BZ) reaction is examined. A gel layer containing the reaction catalysts is patterned onto a glass substrate through photopolymerization and subsequently immersed in a catalyst-free BZ solution. This gel layer serves as an excitable medium, capable of supporting chemical wave propagation in response to external stimuli. Under specific gel layer geometries, unidirectional wave propagation is achieved. To analyze this phenomenon, a mathematical model was developed to explore the influence of geometric parameters on unidirectional wave propagation while accounting for the system excitability levels.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjs/s11734-025-01506-1.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
