Active turbulence

R Alert, J Casademunt, JF Joanny - Annual Review of …, 2022 - annualreviews.org
Active fluids exhibit spontaneous flows with complex spatiotemporal structure, which have
been observed in bacterial suspensions, sperm cells, cytoskeletal suspensions, self …

Dynamics of active liquid interfaces

R Adkins, I Kolvin, Z You, S Witthaus, MC Marchetti… - Science, 2022 - science.org
Controlling interfaces of phase-separating fluid mixtures is key to the creation of diverse
functional soft materials. Traditionally, this is accomplished with surface-modifying chemical …

Submersed micropatterned structures control active nematic flow, topology, and concentration

K Thijssen, DA Khaladj, SA Aghvami… - Proceedings of the …, 2021 - National Acad Sciences
Coupling between flows and material properties imbues rheological matter with its wide-
ranging applicability, hence the excitement for harnessing the rheology of active fluids for …

Tissue Active Matter: Integrating Mechanics and Signaling into Dynamical Models

DB Brückner, E Hannezo - Cold Spring Harbor …, 2024 - cshperspectives.cshlp.org
The importance of physical forces in the morphogenesis, homeostatic function, and
pathological dysfunction of multicellular tissues is being increasingly characterized, both …

Probing active nematics with in situ microfabricated elastic inclusions

I Vélez-Cerón, P Guillamat, F Sagués… - Proceedings of the …, 2024 - National Acad Sciences
In this work, we report a direct measurement of the forces exerted by a tubulin/kinesin active
nematic gel as well as its complete rheological characterization, including the quantification …

Rectified rotational dynamics of mobile inclusions in two-dimensional active nematics

S Ray, J Zhang, Z Dogic - Physical Review Letters, 2023 - APS
We investigate the dynamics of mobile inclusions embedded in 2D active nematics. The
interplay between the inclusion shape, boundary-induced nematic order, and autonomous …

Tangentially driven active polar linear polymers—An analytical study

CA Philipps, G Gompper, RG Winkler - The Journal of Chemical …, 2022 - pubs.aip.org
The conformational and dynamical properties of isolated flexible active polar linear polymers
(APLPs) are studied analytically. The APLPs are modeled as Gaussian bead-spring linear …

Spontaneous self-constraint in active nematic flows

LC Head, C Doré, RR Keogh, L Bonn, G Negro… - Nature Physics, 2024 - nature.com
Active processes drive biological dynamics across various scales and include subcellular
cytoskeletal remodelling, tissue development in embryogenesis and the population-level …

Emergent collective dynamics of pusher and puller squirmer rods: swarming, clustering, and turbulence

AW Zantop, H Stark - Soft Matter, 2022 - pubs.rsc.org
We study the interplay of steric and hydrodynamic interactions in suspensions of elongated
microswimmers by simulating the full hydrodynamics of squirmer rods in the quasi two …

From disks to channels: dynamics of active nematics confined to an annulus

C Joshi, Z Zarei, MM Norton, S Fraden, A Baskaran… - Soft matter, 2023 - pubs.rsc.org
Confinement can be used to systematically tame turbulent dynamics occurring in active
fluids. Although periodic channels are the simplest geometries to study confinement …