Taking a small step away from Newtonian fluid behavior creates an explosion in the range of
possibilities. Non-Newtonian fluid properties can achieve diverse flow objectives, but the …

The locomotion of microorganisms and spermatozoa in complex viscoelastic fluids is of
critical importance in many biological processes such as fertilization, infection, and biofilm …

In this review, we focus on recent experimental research involving active colloidal particles
of non-biological origin evolving in non-Newtonian fluids. This includes self-propelling active …

We report the emergence of large zigzag bands in a population of reversibly actuated
magnetic rotors that behave as active shakers, namely squirmers that shake the fluid around …

Microscale propulsion impacts a diverse array of fields ranging from biology and ecology to
health applications, such as infection, fertility, drug delivery, and microsurgery. However …

Microscopic organisms must frequently swim through complex biofluids, including bacterial
biofilms and the mucus lining of the upper respiratory tract. Recently, there has been great …

In Newtonian fluids, microswimmers need to perform a non-reciprocal shape change to
move forward. However, this is no longer required in biological fluids with their viscoelastic …

Microorganisms are commonly found swimming in complex biological fluids such as mucus
and these fluids respond elastically to deformation. These viscoelastic fluids have been …

Microswimmers often use chirality to generate translational movement from rotation motion,
exhibiting distinct behaviors in complex fluids compared to simple Newtonian fluids …

We present a self-propelled axisymmetric low-Reynolds-number swimmer (force-and torque-
free) that, while unable to swim in a Newtonian fluid, propels itself in a non-Newtonian fluid …