Emergent colloidal dynamics in electromagnetic fields
TLDR
In this article, a review of the collective dynamics that can arise in colloidal systems subjected to electromagnetic fields is presented, focusing on phenomena that are not simply understandable purely from a dipolar model, but instead emerge from the collective behavior of many discrete interacting components driven out of equilibrium by external forces.Abstract:
We present a current review of the collective dynamics that can arise in colloidal systems subjected to electromagnetic fields. The focus is on phenomena that are not simply understandable purely from a dipolar model, but instead emerge from the collective behavior of many discrete interacting components driven out of equilibrium by external forces. We examine in particular the fascinating diversity of large-scale dynamical structures that arise due to the interplay between the induced interactions, time-dependent energy injection, and coupling with the fluid flow.read more
Citations
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Approaches to self-assembly of colloidal monolayers: A guide for nanotechnologists.
Valeria Lotito,Tomaso Zambelli +1 more
TL;DR: This review presents an extensive classification and comparison of the different techniques adopted for 2D self-assembly in order to provide useful guidelines for scientists approaching this field.
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Recent advances in anisotropic magnetic colloids: realization, assembly and applications
TL;DR: This perspective article will give an overview of recent experimental results related to the realization and use of anisotropic magnetic colloids, i.e. microscopic particles having the shape, composition or structured surface which set a preferred magnetization direction.
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Transport of particles in liquid crystals.
TL;DR: The LC environment enables new mechanisms of particle transport that are reviewed, among them the motion of particles caused by gradients of the director, and effects in the electric field: backflow powered by director reorientations, dielectrophoresis in LC with varying dielectric permittivity and LC-enabled nonlinear electrophoresIS with velocity that depends on the square of the applied electric field and can be directed differently from the field direction.
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Rotating crystals of magnetic Janus colloids
TL;DR: These uniform magnetic colloids, whose structures are modulated in situ using the protocols described here, demonstrate a strategy of stimulus-response in the colloid domain with potential applications.
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Colloidal Superstructures Programmed into Magnetic Janus Particles
TL;DR: By engineering thin magnetic films onto homogeneous colloidal particles, various crystalline lattices are induced from simple magnetic Janus spheres, which opens design space for anisotropic building blocks for smart colloidal materials.
References
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A colloidal model system with an interaction tunable from hard sphere to soft and dipolar
TL;DR: This work demonstrates a charge- and sterically stabilized colloidal suspension—poly(methyl methacrylate) spheres in a mixture of cycloheptyl (or cyclohexyl) bromide and decalin—where both the repulsive range and the anisotropy of the interparticle interaction potential can be controlled.