Unicellular microscopic organisms living in aqueous environments outnumber all other
creatures on Earth. A large proportion of them are able to self-propel in fluids with a vast …

Every animal cell is filled with a cytoskeleton, a dynamic gel made of inextensible fibers,
such as microtubules, actin fibers, and intermediate filaments, all suspended in a viscous …

Flagellated bacteria, like Escherichia coli, swim by rotating helical flagellar filaments
powered by rotary flagellar motors at their base. Motor dynamics are sensitive to the load it …

We study shear-induced migration in a dilute suspension of microswimmers (modelled as
active Brownian particles or ABPs) subject to plane Poiseuille flow. For wide channels …

Microswimmers such as E. coli bacteria accumulate and exhibit an intriguing dynamics near
walls, governed by hydrodynamic and steric interactions. Insight into the underlying …

It is well known that flagellated bacteria swim in circles near surfaces. However, recent
experiments have shown that a sulfide-oxidizing bacterium named Thiovulum majus can …

The viscous drag on a slender rod by a wall is important to many biological and industrial
systems. This drag critically depends on the separation between the rod and the wall and …

In many organs, thousands of microscopic 'motile cilia'beat in a coordinated fashion
generating fluid flow. Physiologically, these flows are important in both development and …

Numerous studies have explored the link between bacterial swimming and the number of
flagella, a distinguishing feature of motile multi-flagellated bacteria. We revisit this open …

Since the discovery of bacteria in the 17th century, bacterial motion has been the focus of
great research interest. As an example of bacterial chemotaxis, Escherichia coli exhibits run …