Results 1 to 10 of about 109,951 (269)
Chemical Logic Gates on Active Colloids [PDF]
Recent studies have shown that active colloidal motors using enzymatic reactions for propulsion hold special promise for applications in fields ranging from biology to material science.
Jiang‐Xing Chen+2 more
doaj +5 more sources
A Versatile Method for Synthesis of Light-Activated, Magnet-Steerable Organic–Inorganic Hybrid Active Colloids [PDF]
The immense potential of active colloids in practical applications and fundamental research calls for an efficient method to synthesize active colloids of high uniformity. Herein, a facile method is reported to synthesize uniform organic–inorganic hybrid
Dejia Geng+5 more
doaj +2 more sources
Emergent behavior in active colloids [PDF]
Active colloids are microscopic particles, which self-propel through viscous fluids by converting energy extracted from their environment into directed motion.
Stark, Holger, Zöttl, Andreas
core +7 more sources
Active colloids in complex fluids [PDF]
We review recent work on active colloids or swimmers, such as self-propelled microorganisms, phoretic colloidal particles, and artificial micro-robotic systems, moving in fluid-like environments. These environments can be water-like and Newtonian but can
Aranson+138 more
core +8 more sources
Active colloids at fluid interfaces
If an active Janus particle is trapped at the interface between a liquid and a fluid, its self-propelled motion along the interface is affected by a net torque on the particle due to the viscosity contrast between the two adjacent fluid phases.
Dietrich, S.+2 more
core +5 more sources
Active colloids in liquid crystals [PDF]
Active colloids in liquid crystals (ACLCs) is an active matter with qualitatively new facets of behavior as compared to active matter that becomes isotropic when relaxed into an equilibrium state.
Lavrentovich, Oleg D.
core +4 more sources
Sedimentation of self-propelled Janus colloids: polarization and pressure [PDF]
We study experimentally—using Janus colloids—and theoretically—using Active Brownian Particles—the sedimentation of dilute active colloids. We first confirm the existence of an exponential density profile.
Felix Ginot+5 more
doaj +4 more sources
Active Colloidal Molecules [PDF]
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.
Löwen, Hartmut
core +4 more sources
Sedimentation and levitation of catalytic active colloids
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
doaj +3 more sources
How to steer active colloids up a vertical wall [PDF]
An important challenge in active matter lies in harnessing useful global work from entities that produce work locally, e.g., via self-propulsion. We investigate here the active matter version of a classical capillary rise effect, by considering a non ...
Adérito Fins Carreira+5 more
doaj +2 more sources