ADIW04 | Dr. Joshua Robinson | Reaction-diffusion as active matter

Speaker: Dr Joshua Robinson (University of Bristol)
Date: 10th Jun 2024 - 14:50 to 15:20
Venue: INI Seminar Room 1
Title: Reaction-diffusion as active matter
Event: (ADIW04) Anti-Diffusion in Multiphase and Active Flows
Abstract: Biomolecular condensates are membraneless organelles ubiquitous across cell biology. Chemical reactions have been proposed as a non-equilibrium mechanism to stabilise the size of condensates. At the same time, active field theories (in particular "Active Model B+") also predict the formation of stable size-limited microphases. However, an explicit connection between these two systems has been lacking. I will present rigorous results showing how pattern-forming reaction-diffusion systems with conservation laws universally reduce to an extended form of "Active Model B+" at long times. These results provide a direct link between reaction-diffusion systems and active matter.
The work I will present is from a collaboration with Thomas Speck (Stuttgart) and Thomas Machon (Bristol):
arxiv.org/abs/2406.02409
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