… (52,53) A system of two chemotactic particles, A and B, where A is attracted by the chemical
released by B, and B is repelled by the chemical produced by A has been explored in ref (55…

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 at …

We generalize the Vicsek model to describe the collective behavior of polar circle swimmers
with local alignment interactions. While the phase transition leading to collective motion in …

We demonstrate that migration away from self-produced chemicals (chemorepulsion) generates
a generic route to clustering and pattern formation among self-propelled colloids. The …

Unlike in thermodynamic equilibrium where coexisting phases always have the same
temperature, here we show that systems comprising “active” self-propelled particles can self-…

… Now simulating this model (see Appendix B for equations and details) using Brownian
dynamics simulations, we observe the formation of active molecules as in the experiments, as …

… 2(b)). Comparatively complex interactions have been explored also experimentally with
pear-shaped Quincke rollers [65] which move in circles on a substrate when an external electric …

We introduce a representative minimal model for phoretically interacting active colloids.
Combining kinetic theory, linear stability analyses, and a general relation between self-…

Present hopes to conquer the Covid-19 epidemic are largely based on the expectation of a
rapid availability of vaccines. However, once vaccine production starts, it will probably take …

The survival of many microorganisms, like Leptospira or Spiroplasma bacteria, can depend
on their ability to navigate towards regions of favorable viscosity. While this ability, called …