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Programming Multistationarity in Chemical Replication Networks

Nathaniel Wagner, Rakesh Mukherjee, Indrajit Maity, Sagi Kraun, Gonen Ashkenasy

Systems Chemistry generates platforms for studying the emergence of function in networks operating far from equilibrium. In this area, we have previously used experiments and simulations towards characterization and manipulation of small peptide-based networks, driven by reversible self-replication processes, that exhibit bistability. We now show how coupling two such networks, each exhibiting bistability, yields new dynamic systems that reach multiple (up to four) steady states. Furthermore, we demonstrate how such multistationarity, rarely analyzed before, can be systematically programmed and tuned. Our results suggest that the key to mimic biological complexification lies not only in the applied network size, the number of molecules involved, or even in the emergence of elaborate structures, but also in the network nature and topology.

Publication language English
Volume 2
Issue number 2
Publication status Published - 01.04.2020

Keywords

bistability
chemical kinetic theory
chemical replication
numerical simulation
synthetic networks

ASJC Scopus subject areas

Bioengineering
Catalysis
Biochemistry
Chemistry (miscellaneous)
Access to Document
10.1002/syst.201900048
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Link to publication in Scopus