The term “bioconvection” describes hydrodynamic instabilities and patterns in suspensions
of biased swimming microorganisms. Hydrodynamic instabilities arise from coupling …

We present a fast, high-throughput method for characterizing the motility of microorganisms
in three dimensions based on standard imaging microscopy. Instead of tracking individual …

In this article, we review mathematical models used to study the behaviour of suspensions of
micro-swimmers and the accompanying biophysical phenomena, with specific focus on …

Shear flow significantly affects the transport of swimming algae in suspension. For example,
viscous and gravitational torques bias bottom-heavy cells to swim towards regions of …

In this paper, the unsteady fully developed forced convective flow of viscous incompressible
biofluid that contains both nanoparticles and gyrotactic microorganisms in a horizontal micro …

Many photosynthetic microorganisms are able to detect light and move towards optimal
intensities. This ability, known as phototaxis, plays a major role in ecology by affecting …

The role of uniform shear in bioconvective instability in a shallow suspension of swimming
gyrotactic cells is studied using linear stability analysis. The shear is introduced by applying …

There is much current interest in modelling suspensions of algae and other micro-organisms
for biotechnological exploitation, and many bioreactors are of tubular design. Using …

One of the greatest challenges of this century is to employ nature's resources to address the
world's energy, food, water and chemical requirements without further unsettling the …

A dilute suspension of motile microorganisms subjected to a strong ambient flow, such as
algae in the ocean, can be modelled as a population of non-interacting, orientable active …