ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Séminaire PMMH – Antoine Deblais (U. Amsterdam)
Locomotion and Particle Collection by Active Polymerlike Worms
Living worms such as Tubifex tubifex behave as active, flexible polymers that move and manipulate matter in confined environments. In this talk, I will present two recent studies that highlight how their polymerlike body and activity govern locomotion and transport. In the first part, we will show how worms navigate quasi-2D arrays of obstacles : ordered pillar lattices confine and trap them, while disordered environments paradoxically enhance their spreading, with activity levels playing a key role in mobility. In the second part, we will discuss how the same worms, when interacting with freely moving particles, can act as autonomous collectors : repeated contact and bending drive aggregation into clusters whose size is controlled by filament length and flexibility. Complementary experiments with robotic filaments and simulations reveal the same principles, providing a framework for locomotion in fixed landscapes and particle collection in mobile ones. Together, these results illustrate how active filamentous systems harness shape and flexibility to adapt, spread, and organize matter in complex environments.
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Recent seminars (3)
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Séminaire PMMH - Anaïs Gauthier, IPR Rennes, CNRS
Vendredi 19 septembre de 11h00 à 12h00 - Salle réunion PMMH 1
Capillary choreographies at low-Friction interfaces
From Leidenfrost baths to soap films The motion of millimetre-sized objects trapped at the liquid-air interfaces is a familiar phenomenon, seen in the clumping of cereals in a bowl or of bubbles at the surface of a sparkling drink. The deformation of the interface typically generates attractive forces between the (…) -
Séminaire PMMH – Morgan Chabanon
Du 2025 à 11h00 au 0001 à 00h00 - Salle réunion PMMH 1
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Séminaire PMMH – Irène Nagle (TU Delft)
Vendredi 5 septembre de 11h00 à 12h00 - Salle réunion PMMH 1
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
