Characterization of active matter in dense suspensions with heterodyne laser Doppler velocimetry
Sign Up to like & getrecommendations! Published in 2020 at "Colloid and Polymer Science"
DOI: 10.1007/s00396-020-04693-6
Abstract: We present a novel approach for characterizing the properties and performance of active matter in dilute suspension as well as in crowded environments. We use Super-Heterodyne Laser-Doppler-Velocimetry (SH-LDV) to study large ensembles of catalytically active… read more here.
Keywords: laser doppler; doppler velocimetry; active matter; heterodyne laser ... See more keywords
Biological active matter aggregates: Inspiration for smart colloidal materials.
Sign Up to like & getrecommendations! Published in 2019 at "Advances in colloid and interface science"
DOI: 10.1016/j.cis.2018.11.006
Abstract: Aggregations of social organisms exhibit a remarkable range of properties and functionalities. Multiple examples, such as fire ants or slime mold, show how a population of individuals is able to overcome an existential threat by… read more here.
Keywords: active matter; matter aggregates; colloidal; colloidal materials ... See more keywords
Active matter alters the growth dynamics of coffee rings.
Sign Up to like & getrecommendations! Published in 2019 at "Soft matter"
DOI: 10.1039/c8sm01350k
Abstract: How particles are deposited at the edge of evaporating droplets, i.e. the coffee ring effect, plays a crucial role in phenomena as diverse as thin-film deposition, self-assembly, and biofilm formation. Recently, microorganisms have been shown… read more here.
Keywords: active matter; alters growth; growth dynamics; matter ... See more keywords
As above, so below, and also in between: mesoscale active matter in fluids.
Sign Up to like & getrecommendations! Published in 2019 at "Soft matter"
DOI: 10.1039/c9sm01019j
Abstract: Living matter, such as biological tissue, can be viewed as a nonequilibrium hierarchical assembly, where at each scale self-driven components come together by consuming energy in order to form increasingly complex structures. The remarkable properties… read more here.
Keywords: active matter; matter fluids; matter; biology ... See more keywords
Active matter invasion.
Sign Up to like & getrecommendations! Published in 2019 at "Soft matter"
DOI: 10.1039/c9sm01210a
Abstract: Biologically active materials such as bacterial biofilms and eukaryotic cells thrive in confined micro-spaces. Here, we show through numerical simulations that confinement can serve as a mechanical guidance to achieve distinct modes of collective invasion… read more here.
Keywords: active matter; invasion; matter; matter invasion ... See more keywords
Response of vesicle shapes to dense inner active matter.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00781a
Abstract: We consider experimentally the Takatori-Sahu model of vesicle shape fluctuations induced by enclosed active matter, a model till present tested only in the absence of collective motion because few enclosed bacteria were used to generate… read more here.
Keywords: matter; takatori sahu; response vesicle; matter response ... See more keywords
Spontaneous organization and phase separation of skyrmions in chiral active matter.
Sign Up to like & getrecommendations! Published in 2022 at "Soft matter"
DOI: 10.1039/d2sm00819j
Abstract: Skyrmions are topologically protected vortex-like excitations that hold promise for applications such as information processing and electron manipulation. Here we combine theoretical analysis and numerical simulations to show that skyrmions can spontaneously emerge in chiral… read more here.
Keywords: phase separation; active matter; chiral active;
Fluid interfaces laden by force dipoles: towards active matter-driven microfluidic flows.
Sign Up to like & getrecommendations! Published in 2023 at "Soft matter"
DOI: 10.1039/d3sm00043e
Abstract: In recent years, nonlinear microfluidics in combination with lab-on-a-chip devices has opened a new avenue for chemical and biomedical applications such as droplet formation and cell sorting. In this article, we integrate ideas from active… read more here.
Keywords: matter; interfaces laden; fluid interfaces; active matter ... See more keywords
Avalanche dynamics for active matter in heterogeneous media
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aaa392
Abstract: Using numerical simulations, we examine the dynamics of active matter run-and-tumble disks moving in a disordered array of obstacles. As a function of increasing active disk density and activity, we find a transition from a… read more here.
Keywords: avalanche dynamics; state; active matter; dynamics active ... See more keywords
Deriving hydrodynamic equations from dry active matter models in three dimensions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/aad6b5
Abstract: We derive hydrodynamic equations from Vicsek-style dry active matter models in three dimensions (3D), building on our experience on the 2D case using the Boltzmann-Ginzburg-Landau approach. The hydrodynamic equations are obtained from a Boltzmann equation… read more here.
Keywords: models three; active matter; three dimensions; matter models ... See more keywords
From scalar to polar active matter: Connecting simulations with mean-field theory.
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review E"
DOI: 10.1103/physreve.101.022602
Abstract: We study numerically the phase behavior of self-propelled elliptical particles interacting through the "hard" repulsive Gay-Berne potential at infinite Péclet number. Changing a single parameter, the aspect ratio, allows us to continuously go from discoid… read more here.
Keywords: polar active; active matter; scalar polar; mean field ... See more keywords