منابع مشابه
Thermophoresis of charged colloidal particles.
Thermally induced particle flow in a charged colloidal suspension is studied in a fluid-mechanical approach. The force density acting on the charged boundary layer is derived in detail. From Stokes' equation with no-slip boundary conditions at the particle surface, we obtain the particle drift velocity and the thermophoretic transport coefficients. The results are discussed in view of previous ...
متن کاملCharged Colloidal Rods Out of Equilibrium
This article is a comprehensive overview of the ongoing research of the author on charged colloidal rods out of equilibrium, under external electric fields and at high concentrations around the glass transition. The suspensions of fd-virus particles are used as a model system for charged colloidal rods, which exhibit several disorder-order (and liquid-crystalline) phase transitions. When a low ...
متن کاملDepletion potentials induced by charged colloidal rods.
We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systems (Helden et al. Phys. Rev. Lett. 2003, 90, 048301), here electrostatic interactions are important. These enhance the depletion attraction and lead to repulsive parts in the interaction potentials, indi...
متن کاملRotational dynamics of colloidal tracer spheres in suspensions of charged rigid rods
The short-time rotational dynamics of colloidal silica tracer spheres in suspensions of rigid silica rods is investigated, using time-resolved phosphorescence anisotropy, as a function of tracer radius aT , rod volume fraction f, and the range k 21 of the double-layer repulsions between the like-charged rods and tracer spheres. A large tracer size aT and a small screening length k 21 appear to ...
متن کاملCorrection: An electric-field induced dynamical state in dispersions of charged colloidal rods.
The response of concentrated dispersions of charged colloids to low-frequency electric fields is governed by field-induced inter-colloidal interactions resulting from the polarization of electric double layers and the layer of condensed ions, association and dissociation of condensed ions, as well as hydrodynamic interactions through field-induced electro-osmotic flow. The phases and states tha...
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ژورنال
عنوان ژورنال: Soft Matter
سال: 2013
ISSN: 1744-683X,1744-6848
DOI: 10.1039/c3sm51456k