Activity and autonomous motion are fundamental in living and engineering systems. This
has stimulated the new field of'active matter'in recent years, which focuses on the physical …

Our work on rate-independent systems was stimulated by our search for evolutionary
material models for shape-memory alloys that are flexible enough to encompass nonlinear …

Cell motility in viscous fluids is ubiquitous and affects many biological processes, including
reproduction, infection and the marine life ecosystem. Here we review the biophysical and …

This work deals with gliding motion of bacteria over a non-Newtonian slime layer attached to
a solid substrate. The surface of a glider is approximated with a simple wavy two …

The gliding motility is widely observed in rod-shaped bacteria known as gliding bacteria,
which produce waves on their surfaces and leaves a sticky layer of ooze slime. In the current …

The collective ability of organisms to move coherently in space and time is ubiquitous in any
group of autonomous agents that can move and sense each other and the environment …

Swimming and pum** at low Reynolds numbers are subject to the “Scallop theorem”,
which states that there is no net fluid flow for time-reversible motions. Microscale organisms …

Euglenids exhibit an unconventional motility strategy amongst unicellular eukaryotes,
consisting of large-amplitude highly concerted deformations of the entire body (euglenoid …

Biological microswimmers can coordinate their motions to exploit their fluid environment—
and each other—to achieve global advantages in their locomotory performance. These …

Designing locomotory gaits for synthetic microswimmers has been a challenge due to
stringent constraints on self-propulsion at low Reynolds numbers (Re). Here, we introduce a …