Results 11 to 20 of about 15,498 (244)
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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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
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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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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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Light-activated self-propelled colloids [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 Light-activated self-propelled colloids are synthesized and their active motion is studied using optical microscopy. We propose a versatile route using different photoactive materials, and demonstrate a multiwavelength activation and propulsion.
Palacci, J. +5 more
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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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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 colloidal molecules [PDF]
EPL (Europhysics Letters), 2018 Like ordinary molecules are composed of atoms, colloidal molecules consist of several species of colloidal particles tightly bound together. If one of these components is self-propelled or swimming, novel "active colloidal molecules" emerge. Active colloidal molecules exist on various levels such as "homonuclear", "heteronuclear" and "polymeric" and ...
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Sedimentation and levitation of catalytic active colloids
Physical Review Research, 2023 Gravitational effects in colloidal suspensions can be easily turned off by matching the density of the solid microparticles with the one of the surrounding fluid. By studying the motion of catalytic microswimmers with tunable buoyant weight, we show that
V. Carrasco-Fadanelli, I. Buttinoni
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