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DTSTAMP:20260525T173718Z
SUMMARY:Dr Jaime Agudo-Canalejo: Self-organisation through nonequilibrium c
 atalytic activity
DESCRIPTION:\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nSelf-organisation through nonequi
 librium catalytic activity \n\n\nParticles that are both catalytically-ac
 tive and chemotactic can interact through the chemical concentration field
 s upon which they act. Examples of such particles include micron-scale che
 motactic microorganisms and phoretic colloids\, as well as nano-scale enzy
 mes. I will discuss the range of spatio-temporal self-organization phenome
 na that can emerge in mixtures of catalytic particles. Due to their nonequ
 ilibrium origin\, the effective interactions among catalytic particles can
  display exotic features such as nonreciprocity (e.g. A is attracted to B 
 while B is repelled from A)\, which results in dynamic steady states with 
 self-propulsion [1]\, periodic oscillations [2]\, or aggregation in spite 
 of self-repulsion [3]. Importantly\, the complexity of the metabolic netwo
 rk in which such catalytic particles participate translates into a rich st
 ructure in the network of effective interactions that emerges among them\,
  and has a strong effect in the resulting self-organization [4]. Lastly\, 
 I will discuss how\, far from being an ad-hoc effect\, the emergence of ef
 fective interactions among catalysts is an unavoidable consequence in any 
 thermodynamically-consistent theory of a catalytically-active mixture [5].
 \n\n[1] J. Agudo-Canalejo and R. Golestanian\, Phys. Rev. Lett. 123\, 0181
 01 (2019)\n[2] V. Ouazan-Reboul\, J. Agudo-Canalejo\, and R. Golestanian\,
  Nat. Commun. 14\, 4496 (2023)\n[3] V. Ouazan-Reboul\, R. Golestanian\, an
 d J. Agudo-Canalejo\, Phys. Rev. Lett. 131\, 128301 (2023)\n[4] V. Ouazan-
 Reboul\, R. Golestanian\, and J. Agudo-Canalejo\, arXiv:2510.21430 (2025).
 \n[5] M. W. Cotton\, R. Golestanian\, and J. Agudo-Canalejo\, Phys. Rev. L
 ett. 129\, 158101 (2022)\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
 \n\n\n\n\n\n\n\n\n\n
URL:https://www.imperial.ac.uk/events/209118/agudo-canelo-self-organisation
 /
DTSTART;TZID=Europe/London:20260514T140000
DTEND;TZID=Europe/London:20260514T150000
LOCATION:RSM-131\, Royal School Of Mines\, South Kensington Campus\, Imperi
 al College London\, London\, SW7 2AZ\, United Kingdom
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