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Collective Chemotactic Dynamics in the Presence of Self-Generated Fluid Flows
Enkeleida Lushi, Raymond E. Goldstein, Michael J. Shelley
In micro-swimmer suspensions locomotion necessarily generates fluid motion, and it is known that such flows can lead to collective behavior from unbiased swimming. We examine the c…
Meso-scale turbulence in living fluids
Henricus H. Wensink, Jörn Dunkel, Sebastian Heidenreich +4
Turbulence is ubiquitous, from oceanic currents to small-scale biological and quantum systems. Self-sustained turbulent motion in microbial suspensions presents an intriguing examp…
Shear-Driven Circulation Patterns in Lipid Membrane Vesicles
Francis G. Woodhouse, Raymond E. Goldstein
Recent experiments have shown that when a near-hemispherical lipid vesicle attached to a solid surface is subjected to a simple shear flow it exhibits a pattern of membrane circula…
Minimal continuum theories of structure formation in dense active fluids
Jörn Dunkel, Sebastian Heidenreich, Markus Bär +1
Self-sustained dynamical phases of living matter can exhibit remarkable similarities over a wide range of scales, from mesoscopic vortex structures in microbial suspensions and mot…
Spontaneous Circulation of Confined Active Suspensions
Francis G. Woodhouse, Raymond E. Goldstein
Many active fluid systems encountered in biology are set in total geometric confinement. Cytoplasmic streaming in plant cells is a prominent and ubiquitous example, in which cargo-…
Coupling of Active Motion and Advection Shapes Intracellular Cargo Transport
P. Khuc Trong, J. Guck, R. E. Goldstein
Intracellular cargo transport can arise from passive diffusion, active motor-driven transport along cytoskeletal filament networks, and passive advection by fluid flows entrained b…