We review recent work on active colloids at interfaces, including self-propelled colloids that
move by generating a propulsive force, and driven colloids that move under external fields …

Collective behavior is a widespread and important phenomenon among human society,
biological populations, swarm robots and multi-agents. The mathematical model shows that …

We show that a two-dimensional system of flocking active particles interacting
hydrodynamically can be expressed using a Hamiltonian formalism. The Hamiltonian …

Microorganisms often actively respond to multiple external stimuli to navigate toward their
preferred niches. For example, unicellular magnetotactic bacteria integrate both oxygen …

Biased locomotion is a common feature of microorganisms, but little is known about its
impact on self-organization. Inspired by recent experiments showing a transition to large …

Undesired advection effects are unavoidable in most nano-technological applications
involving active matter. However, it is conceivable to govern the transport of active particles …

Squirmers that are bottom-heavy experience a torque that aligns them along the vertical so
that they swim upwards. In a suspension of many squirmers, they also interact …

We perform experiments and computer simulations to study the effective interactions
between like-charged colloidal tracers moving in a two-dimensional fluctuating background …

We report a simulation study on the narrow escape kinetics of a chiral active particle (CAP)
confined to a circular domain with a narrow escape opening. The study's main objective is to …

Earth's aquatic environments are inherently stratified layered systems where interfaces
between layers serve as ecological niches for microbial swimmers, forming colonies known …