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 …

The past two decades have seen a remarkable progress in the development of synthetic
colloidal agents which are capable of creating directed motion in an unbiased environment …

Conspectus The ability to navigate in chemical gradients, called chemotaxis, is crucial for
the survival of microorganisms. It allows them to find food and to escape from toxins. Many …

Self-organization is the generation of order out of local interactions. It is deeply connected to
many fields of science from physics, chemistry to biology, all based on physical interactions …

With rising popularity of microscale thermophoresis for the characterisation of protein-ligand
binding reactions and possible applications in microfluidic devices, there is a growing …

Microorganisms are able to overcome the thermal randomness of their surroundings by
harvesting energy to navigate in viscous fluid environments. In a similar manner, synthetic …

Chemically active colloids locally change the chemical composition of their solvent via
catalytic reactions which occur on parts of their surface. They achieve motility by converting …

When do nonequilibrium forms of disordered energy qualify as heat? We address this
question in the context of cyclically operating heat engines feeding on nonequilibrium …

A cornerstone of the directed motion of microscopic self-propelling particles is an
asymmetric particle structure defining a polarity axis along which these tiny machines move …

A hallmark of bacteria is their so-called “run-and-tumble” motion and its variants, consisting
of a sequence of linear directed “runs” and distinct rotation events that constantly alternate …