Active colloids are self-propelled particles moving in viscous fluids by consuming fuel from
their surroundings. Here, we review the numerical and theoretical modeling of active …

Active matter, which ranges from molecular motors to groups of animals, exists at different
length scales and timescales, and various computational models have been proposed to …

Locomotion and transport of microorganisms in fluids is an essential aspect of life. Search
for food, orientation toward light, spreading of off-spring, and the formation of colonies are …

Active colloids are microscopic particles, which self-propel through viscous fluids by
converting energy extracted from their environment into directed motion. We first explain …

Fluid dynamics plays a crucial role in many cellular processes, including the locomotion of
cells such as bacteria and spermatozoa. These organisms possess flagella, slender …

We discover a new contribution to the pressure (or stress) exerted by a suspension of self-
propelled bodies. Through their self-motion, all active matter systems generate a unique …

Cell motility in viscous fluids is ubiquitous and affects many biological processes, including
reproduction, infection and the marine life ecosystem. Here we review the biophysical and …

The swimming trajectories of self-propelled organisms or synthetic devices in a viscous fluid
can be altered by hydrodynamic interactions with nearby boundaries. We explore a …

We study the collective motion of confined spherical microswimmers such as active colloids
which we model by so-called squirmers. To simulate hydrodynamic flow fields including …

One characteristic feature of soft matter systems is their strong response to external stimuli.
As a consequence they are comparatively easily driven out of their ground state and out of …