The term “bioconvection” describes hydrodynamic instabilities and patterns in suspensions
of biased swimming microorganisms. Hydrodynamic instabilities arise from coupling …

Bacteria overwhelmingly live in geometrically confined habitats that feature small pores or
cavities, narrow channels, or nearby interfaces. Fluid flows through these confined habitats …

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 …

The locomotion of microorganisms and spermatozoa in complex viscoelastic fluids is of
critical importance in many biological processes such as fertilization, infection, and biofilm …

We experimentally investigate active motion of spherical Janus colloidal particles in a
viscoelastic fluid. Self-propulsion is achieved by a local concentration gradient of a critical …

The colonization of surfaces by bacteria is a widespread phenomenon with consequences
on environmental processes and human health. While much is known about the molecular …

Biological microswimmers navigate upstream of an external flow with trajectories ranging
from linear to spiralling and oscillatory. Such a rheotactic response primarily stems from the …

Biohybrid microrobotics are exploited as a delivery approach to actively transport
therapeutic payload to tumors. However, the therapeutic utility of this approach can be …

Bacterial contamination of biological channels, catheters or water resources is a major threat
to public health, which can be amplified by the ability of bacteria to swim upstream. The …