Results 11 to 20 of about 109,951 (269)
Sedimentation of active colloidal suspensions
, 2010 In this paper, we investigate experimentally the non-equilibrium steady state of an active colloidal suspension under gravity field. The active particles are made of chemically powered colloids, showing self propulsion in the presence of an added fuel ...
Christophe Ybert +6 more
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Nonequilibrium Equation of State in Suspensions of Active Colloids
Physical Review X, 2015 Active colloids constitute a novel class of materials composed of colloidal-scale particles locally converting chemical energy into motility, mimicking micro-organisms.
Félix Ginot +6 more
doaj +4 more sources
Focus on Active Colloids and Nanoparticles
New Journal of Physics, 2020 Thomas Speck +2 more
doaj +3 more sources
Interactions in active colloids [PDF]
Journal of Physics: Condensed Matter, 2021 Abstract The past two decades have seen a remarkable progress in the development of synthetic colloidal agents which are capable of creating directed motion in an unbiased environment at the microscale. These self-propelling particles are often praised for their enormous potential to self-organize into dynamic nonequilibrium structures ...
Benno Liebchen, Aritra K Mukhopadhyay
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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
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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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Self Organization of Binary Colloidal Mixtures via Diffusiophoresis
Frontiers in Chemistry, 2022 Catalytic activity of the colloids and chemotactic response to gradients of the chemicals in the solution leads to effective interaction between catalytic colloids.
Lijie Lei +6 more
doaj +1 more source
Scientific Reports, 2021 Biophysical cues such as osmotic pressure modulate proliferation and growth arrest of bacteria, yeast cells and seeds. In tissues, osmotic regulation takes place through blood and lymphatic capillaries and, at a single cell level, water and ...
Hubert M. Taïeb +6 more
doaj +1 more source
Frontiers in Chemistry, 2022 The application of the active colloids is strongly related to their self-propulsion velocity, which is controlled by the generated anisotropic concentration field.
Lijie Lei +8 more
doaj +1 more source
Island hopping of active colloids
Soft Matter, 2023 Active Brownian particle (ABP) undergoing island-hopping in an environment of ‘passive’ colloidal islands.
Venkata Manikantha Sai Ganesh Tanuku +3 more
openaire +3 more sources