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Univ. Paris-Saclay
Bacterial fluids, a living example of “active matter”
Eric Clément
PMMH-ESPCI-Sorbonne University
Mercredi 10/04/2019, 11:00-12:00
SPEC Salle Itzykson, Bât.774, Orme des Merisiers

Understanding the individual and the macroscopic transport properties of motile micro-organisms in various complex environments, is a timely question, relevant to many ecological, medical and technological applications. At the fundamental level, this question is also receiving a lot of attention as fluids loaded with swimming micro-organisms has become a rich domain of applications for the statistical physics of “active matter”. The existence of microscopic sources of energy borne in the motile character of micro-swimmers is driving self-organization processes at the origin of numerous original effects, new emergent phases and unconventional macroscopic properties.
In this presentation, I will review several experimental studies which led us to revisit standard concepts of the physics of suspensions like Brownian motion, hydrodynamics dispersion or rheological response. I will also present new experiments showing how the motility of bacteria can be controlled such as to extract work macroscopically


Un café sera servi dans le Hall  à 11H


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