Spatial Organization in 3D Active Matter: From Colloids to Fish

Explore a one-hour seminar presentation examining the spatial organization in three-dimensional active matter systems, delivered by Professor Paddy Royall from ESPCI ParisTech. Delve into groundbreaking research findings across three distinct active matter model systems: Quincke Rollers (2D colloids), metal-dielectric Janus particles (3D colloids), and zebrafish. Learn about the intriguing phase behavior of Quincke Rollers in bulk, including mesophase separation phenomena and novel bound states formed through steric and hydrodynamic interactions. Discover how 3D active colloids using metal-dielectric Janus particles form unique structures like sheets and labyrinthine phases. Examine how zebrafish behavior can be mapped onto a modified Vicsek model, revealing how genetic modifications influence their collective movement patterns and demonstrating how just three zebrafish can capture the essential dynamics of larger groups through a tristable state system.