Physikalisches Kolloquium: Self-assembling complex and swimming structures at the mesoscale

Jan 25
25. January 2023 12:00 - 13:00
Hörsaal H, Staudtstr. 5, 91058 Erlangen und per Zoom

Self-assembling complex and swimming structures at the mesoscale

Abstract:
When soft ferromagnetic particles are suspended at air-water interfaces in the presence of a vertical magnetic field, dipole-dipole repulsion competes with capillary attraction
such that (sub)millimeter structures self-assemble. The complex arrangements of such floating bodies are emphasized, and the capillary interaction characterized.
By adding a horizontal and oscillating magnetic field, periodic deformations of the assembly are induced. We show that collective particle motions induce locomotion at low Reynolds number.
The physical mechanisms and geometrical ingredients behind this cooperative locomotion are identified. These physical mechanisms can be exploited at the mesoscale,
offering the possibility to create artificial and versatile microscopic swimmers. Moreover, we show that it is possible to generate complex structures that are able to capture particles,
perform cargo transport, fluid mixing, etc…

Sprecher: Prof. Dr. Nicolas Vandewalle — GRASP, Institut de Physique B5a, Université de Liège, Belgium

Kontakt: Prof. Dr. Ana‐Suncana Smith

Norbert Lindlein lädt Sie zu einem geplanten Zoom-Meeting ein.

Thema: Physikalisches Kolloquium WS 2022/2023

Laden Sie die folgenden iCalendar-Dateien (.ics) herunter und importieren Sie sie in Ihr Kalendersystem.
Wöchentlich: https://fau.zoom.us/meeting/u5ItdeuupjgvHdUniVqRU-eK-yyzSt5v7W6g/ics?icsToken=98tyKu-urjkoHNyWtR6GR_MAAojoa-7xiHZYgqdokhbTEhJmLwbde_tbKIFrRc6H

Zoom-Meeting beitreten
https://fau.zoom.us/j/66022683571?pwd=R1NuQyttTW9sbE1qWFk3dkVkUEVvZz09

Meeting-ID: 660 2268 3571
Kenncode: 729617
Schnelleinwahl mobil
+496971049922,,66022683571#,,,,*729617# Deutschland
+496938079883,,66022683571#,,,,*729617# Deutschland

Einwahl nach aktuellem Standort
+49 69 7104 9922 Deutschland
+49 69 3807 9883 Deutschland
+49 69 3807 9884 Deutschland
+49 69 5050 0951 Deutschland
+49 69 5050 0952 Deutschland
+49 695 050 2596 Deutschland
Meeting-ID: 660 2268 3571
Kenncode: 729617
Ortseinwahl suchen: https://fau.zoom.us/u/cgxUlzzWQ

Über SIP beitreten
66022683571@fr.zmeu.us

Über H.323 beitreten
213.19.144.110 (Amsterdam
Niederlande)
213.244.140.110 (Deutschland)
Kenncode: 729617
Meeting-ID: 660 2268 3571