Pattern selection by material aging: Modeling chemical gardens in two and three dimensions.

ABSTRACT: Chemical gardens are complex, often macroscopic, structures formed by precipitation reactions. Their thin walls compartmentalize the system and adjust in size and shape if the volume of the interior reactant solution is increased by osmosis or active injection. Spatial confinement to a thin layer is known to result in various patterns including self-extending filaments and flower-like patterns organized around a continuous, expanding front. Here, we describe a cellular automaton model for this type of self-organization, in which each lattice site is occupied by one of the two reactants or the precipitate. Reactant injection causes the random replacement of precipitate and generates an expanding near-circular precipitate front. If this process includes an age bias favoring the replacement o

SUBMITTER: Batista BC 

PROVIDER: S-EPMC10334770 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature