DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2024 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

CPP: Fachverband Chemische Physik und Polymerphysik

CPP 20: Active Matter II (joint session BP/CPP/DY)

CPP 20.7: Vortrag

Dienstag, 19. März 2024, 11:15–11:30, H 1028

Structural Colour from Collective Gliding Bacteria Motion — •Junwei Wang1, Marina Portoghese2, Laura Caton2, Colin Ingham3, and Silvia Vignolini11Max Planck Institute of Colloids and Interfaces, Potsdam, Germany — 2University of Cambridge, Cambridge, UK — 3Hoekmine BV, Utrecht, Netherland

We report a type of marine, non-pathogenic, gliding bacteria, Flavobacterium Iridescent 1 (IR1), that grows into a dense active liquid crystal colony, exhibiting structural colour. We demonstrate different crystalline phases arising from collective bacteria motility correlate with varied optical appearances of the colony. We show the hierarchical collective motions of the rod-like bacteria that organize into clusters, monolayer, multi-layers and finally into large scale vortices. We also illustrate how the bacteria colony adapts to confinement of different geometries.

Keywords: active nematics; bacteria biophysics; structural color; nanostructure; emergent

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2024 > Berlin