Results 21 to 30 of about 109,951 (269)
Symmetrical Catalytic Colloids Display Janus‐Like Active Brownian Particle Motion
Advanced Science, 2023 Catalytic Janus colloids, with one hemi‐sphere covered by a hydrogen peroxide reduction catalyst such as platinum, represent one of the most experimentally explored examples of self‐motile active colloid systems. This paper comparatively investigates the
Richard J. Archer, Stephen J. Ebbens
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Patchy Bubble‐Propelled Colloids at Interfaces
Advanced Materials Interfaces, 2023 Liquid–liquid or liquid–air interfaces provide interesting environments to study colloids and are ubiquitous in nature and industry, as well as relevant in applications involving emulsions and foams. They present a particularly intriguing environment for
David P. Rivas +3 more
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Spatio-temporal control of the phase separation of chemically active immotile colloids
National Science Open, 2023 Understanding and controlling phase separation in nonequilibrium colloidal systems are of both fundamental and applied importance. In this article, we investigate the spatiotemporal control of phase separation in chemically active immotile colloids.
Peng Yixin +8 more
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Diffusion in active magnetic colloids [PDF]
Journal of Magnetism and Magnetic Materials, 2014 Properties of active colloids of circle swimmers are reviewed. As an particular example of active magnetic colloids the magnetotactic bacteria under the action of a rotating magnetic field is considered. The relation for a diffusion coefficient due to the random switching of the direction of rotation of their rotary motors is derived on the basis of ...
R. Taukulis, A. Cebers
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Active Anisotropic Colloids from Colloidal Monolayers [PDF]
, 2021 In this thesis we describe several colloidal model systems. We first study the lattice structures in monolayers of colloidal superballs prepared using the unidirectional rubbing method. In this method, the ordering of the colloidal superballs is achieved by mechanically rubbing them onto a polydimethylsiloxane- (PDMS) coated surface. We show using both
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Colloidal transport by active filaments [PDF]
The Journal of Chemical Physics, 2017 Enhanced colloidal transport beyond the limit imposed by diffusion is usually achieved through external fields. Here, we demonstrate the ballistic transport of a colloidal sphere using internal sources of energy provided by an attached active filament.
Raj Kumar Manna +2 more
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Colloids in two-dimensional active nematics: conformal cogs and controllable spontaneous rotation
New Journal of Physics, 2023 A major challenge in the study of active systems is to harness their non-equilibrium dynamics into useful work. We address this by showing how to design colloids with controllable spontaneous propulsion or rotation when immersed in active nematics.
Alexander J H Houston +1 more
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Driven Engulfment of Janus Particles by Giant Vesicles in and out of Thermal Equilibrium
Nanomaterials, 2022 The interaction between Janus colloids and giant lipid vesicles was experimentally investigated to elucidate the dynamics and mechanisms related to microparticle engulfment by lipid vesicles.
Vaibhav Sharma +2 more
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Active microrheology in a colloidal glass [PDF]
Physical Review E, 2016 We study the dynamics of a probe particle driven by a constant force through a colloidal glass of hard spheres. This nonequilibrium and anisotropic problem is investigated using a new implementation of the mode-coupling approximation with multiple relaxation channels and Langevin dynamics simulations.
Gruber, Markus +3 more
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Quantifying the non-equilibrium activity of an active colloid [PDF]
Soft Matter, 2020 Active matter systems exhibit rich emergent behavior due to constant injection and dissipation of energy at the level of individual agents. We characterize the dissipation of single active colloids.
Alex Vidal +8 more
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