Results 21 to 30 of about 4,202,968 (328)
Run-and-tumble-like motion of active colloids in viscoelastic media [PDF]
New Journal of Physics, 2018 Run-and-tumble motion is a prominent locomotion strategy employed by many living microorganisms. It is characterized by straight swimming intervals (runs), which are interrupted by sudden reorientation events (tumbles).
Celia Lozano +2 more
doaj +2 more sources
Phoretic Interactions Generically Induce Dynamic Clusters and Wave Patterns in Active Colloids [PDF]
Physical Review Letters, 2017 We introduce a representative minimal model for phoretically interacting active colloids. Combining kinetic theory, linear stability analyses, and a general relation between self-propulsion and phoretic interactions in autodiffusiophoretic and ...
Benno Liebchen +2 more
openalex +3 more sources
Which interactions dominate in active colloids? [PDF]
The Journal of Chemical Physics, 2018 Despite mounting evidence that the same gradients, which active colloids use for swimming, induce important cross-interactions (phoretic interactions), they are still ignored in most many-body descriptions, perhaps to avoid complexity and a zoo of ...
B. Liebchen, H. Löwen
semanticscholar +5 more sources
Dynamic overlap concentration scale of active colloids. [PDF]
Physical Review E, 2020 By introducing the notion of a dynamic overlap concentration scale, we identify additional universal features of the mechanical properties of active colloids.
S. Mallory, A. Omar, J. Brady
semanticscholar +7 more sources
Programming Tactic Behaviors of Active Colloids via Surface Charge. [PDF]
ACS NanoXiao Z, Sharan P, Simmchen J.
europepmc +2 more sources
The motion of catalytically active colloids approaching a surface. [PDF]
Soft MatterMelio J +8 more
europepmc +4 more sources
Shape-directed dynamics of active colloids powered by induced-charge electrophoresis. [PDF]
Proc Natl Acad Sci U S A, 2018 Brooks AM, Sabrina S, Bishop KJM.
europepmc +2 more sources
Active colloidal molecules in activity gradients [PDF]
Physical Review E, 2022 We consider a rigid assembly of two active Brownian particles, forming an active colloidal dimer, in a gradient of activity. We show analytically that depending on the relative orientation of the two particles the active dimer accumulates in regions of either high or low activity, corresponding to, respectively, chemotaxis and antichemotaxis.
Hidde D. Vuijk +4 more
openaire +3 more sources
Designing active colloidal folders [PDF]
The Journal of Chemical Physics, 2022 Can active forces be exploited to drive the consistent collapse of an active polymer into a folded structure? In this paper, we introduce and perform numerical simulations of a simple model of active colloidal folders and show that a judicious inclusion of active forces into a stiff colloidal chain can generate designable and reconfigurable two ...
S. Das, M. Lange, A. Cacciuto
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Active colloids in harmonic optical potentials [PDF]
Europhysics letters, 2022 We study the motion of active Janus colloids in an optical trap using experiments, theory and numerical simulations. To achieve isotropic and harmonic confinement, we prototype microparticles with a nearly uniform refractive index and verify that, in the
I. Buttinoni +4 more
semanticscholar +1 more source