Seminars

PMMH’s weekly seminar is held every Friday at 11 am (map)

Contact :
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
responsables-seminaires (arobase) pmmh.espci.fr

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)

Vendredi 26 septembre de 11h00 à 12h00 - Salle réunion PMMH 1

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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Seminars  (9)

Information for the speakers

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.

Archive 1996-2011
Other seminars in Paris and its surroundings :

Link to cofee seminar (internal, every Thursday)


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Seminars (3)

Contact

Directeur : Ramiro GODOY DIANA
Codirecteur : Laurent DUCHEMIN
Administratrice : Frédérique AUGER (01 40 79 45 22)
Gestionnaire : Claudette BAREZ (01 40 79 58 53)
Courriel : dir (arobase) pmmh.espci.fr
Téléphone : 01 40 79 45 22
Adresse : PMMH UMR 7636 CNRS, ESPCI Paris-PSL, Sorbonne Université, Université Paris Cité
7 Quai Saint Bernard, Barre Cassan Bât A 1er étage Case 18, 75005 Paris