Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Oscillation Resynchronization in a Photosensitive Reaction-Diffusion System

Version 1 : Received: 25 November 2023 / Approved: 1 December 2023 / Online: 1 December 2023 (07:59:48 CET)

How to cite: Shi, D.; Tan, Y.; Zhang, Q.; Ren, L. Oscillation Resynchronization in a Photosensitive Reaction-Diffusion System. Preprints 2023, 2023120051. https://doi.org/10.20944/preprints202312.0051.v1 Shi, D.; Tan, Y.; Zhang, Q.; Ren, L. Oscillation Resynchronization in a Photosensitive Reaction-Diffusion System. Preprints 2023, 2023120051. https://doi.org/10.20944/preprints202312.0051.v1

Abstract

: Oscillation synchronization through diffusion-based communication of active materials can lead to emergence of diverse patterns and collective behaviors. A detailed general description of the formation process of synchronization or resynchronization dynamics is a challenging task. We employ a photosensitive Belousov-Zhabotinsky reaction-diffusion model (within a gel media) to investigate the recovery process of oscillation synchronization between a pair of gel patches. The recovery time for oscillation resynchronization can be modulated by patch-distance, species of signaling molecules, intensity and duration of illumination. Analysis reveals that the “switch effect” of the gel-distance and the “promotion effect” from illumination on the oscillation resynchronization originate from the competition between processes of photo-promotion of oscillation, diffusion of signaling molecules (HBrO2 and Br-) and disproportionation of HBrO2. These results will benefit studies on bio-inspired active materials and soft motors.

Keywords

active materials; resynchronization; oscillatory media; photosensitive Belousov-Zhabotinsky reaction; reaction-diffusion system

Subject

Chemistry and Materials Science, Physical Chemistry

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