Active fluids exhibit spontaneous flows with complex spatiotemporal structure, which have
been observed in bacterial suspensions, sperm cells, cytoskeletal suspensions, self …

A wide range of experimental systems including gliding, swarming and swimming bacteria,
in vitro motility assays, and shaken granular media are commonly described as self …

Bacteria are among the oldest and most abundant species on Earth. Bacteria successfully
colonize diverse habitats and play a significant role in the oxygen, carbon, and nitrogen …

A landmark of turbulence is the emergence of universal scaling laws, such as Kolmogorov's
E (q)~ q− 5∕ 3 scaling of the kinetic energy spectrum of inertial turbulence with the …

Bacterial swarming is a collective mode of motion in which cells migrate rapidly over
surfaces, forming dynamic patterns of whirls and jets. This review presents a physical point …

Meso-scale turbulence is an innate phenomenon, distinct from inertial turbulence, that
spontaneously occurs at low Reynolds number in fluidized biological systems. This …

The spatiotemporal dynamics in systems of active self-propelled particles is controlled by the
propulsion mechanism in combination with various direct interactions, such as steric …

Bacterial swarms display intriguing dynamical states like active turbulence. Now, using a
hydrodynamic model, we show that such dense active suspensions manifest superdiffusion …

Despite mounting evidence that the same gradients, which active colloids use for swimming,
induce important cross-interactions (phoretic interactions), they are still ignored in most …

Recent experiments have shown that the complex spatio-temporal vortex structures
emerging in active fluids are susceptible to weak geometrical constraints. This observation …