How bacterial chemotaxis is performed is much better understood than why. Traditionally,
chemotaxis has been understood as a foraging strategy by which bacteria enhance their …

Most swimming bacteria are capable of following gradients of nutrients, signaling molecules
and other environmental factors that affect bacterial physiology. This tactic behavior became …

The fascinating patterns of collective motion created by autonomously driven particles have
fuelled active-matter research for over two decades. So far, theoretical active-matter …

Self-propelled particles include both self-phoretic synthetic colloids and various
microorganisms. By continually consuming energy, they bypass the laws of equilibrium …

We review theoretical models of individual motility as well as collective dynamics and
pattern formation of active particles. We focus on simple models of active dynamics with a …

In this Letter, we explore experimentally the phase behavior of a dense active suspension of
self-propelled colloids. In addition to a solidlike and gaslike phase observed for high and …

Chemotaxis and autochemotaxis play an important role in many essential biological
processes. We present a self-propelling artificial swimmer system that exhibits chemotaxis …

We explain the biology and physics underlying the chemotactic (foraging) behavior of E. coli
bacteria. We explain a variety of bacterial swarming and social foraging behaviors and …

Mathematical modelling of chemotaxis (the movement of biological cells or organisms in
response to chemical gradients) has developed into a large and diverse discipline, whose …

Microbiology is the science of microbes, particularly bacteria. Many bacteria are motile: they
are capable of self-propulsion. Among these, a significant class execute so-called run-and …