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Literature DB >> 21479782

Aggregation and disaggregation dynamics of sedimented and charged superparamagnetic micro-particles in water suspension.

P Domínguez-García¹, J M Pastor, M A Rubio.

Abstract

This article presents results on the aggregation and disaggregation kinetics on a 1 μm diameter charged superparamagnetic particles dispersed in water under a constant uniaxial magnetic field in experiments with salt (KCl) added to the suspension in order to observe the behaviour of the system when the electrical properties of the particles have been screened. These particles have an electric charge and are confined between two separated 100 μm thick quartz windows, and sediment near the charged bottom wall. The electrostatic interactions that take place in this experimental setup may affect the micro-structure and colloidal stability of the suspension and thus, the dynamics of aggregation and disaggregation.

Entities: Chemical

Mesh：

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Year: 2011 PMID： 21479782 DOI： 10.1140/epje/i2011-11036-5

Source DB: PubMed Journal: Eur Phys J E Soft Matter ISSN： 1292-8941 Impact factor: 1.890

16 in total

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Authors: P Domínguez-García; Sonia Melle; M A Rubio
Journal: J Colloid Interface Sci Date: 2009-01-15 Impact factor: 8.128

8. The Great Asteroid Roast: Wast It Rare or Well-Done?: Many astronomers now believe most of the asteroids were cooked early on rather than being largely unaltered primordial stuff.

Authors: R A Kerr
Journal: Science Date: 1990-02-02 Impact factor: 47.728

Aggregation and disaggregation dynamics of sedimented and charged superparamagnetic micro-particles in water suspension.

1. Evidence for a macroscopic electric field in the sedimentation profiles of charged colloids.

2. Nonlinear phenomena in systems of magnetic holes.

3. Aggregation of magnetic microspheres: Experiments and simulations.

4. Aggregation dynamics of nonmagnetic particles in a ferrofluid.

Review 5. Molecular mechanisms of magnetosome formation.

6. Formation of magnetic filaments: a kinetic study.

7. Morphology of anisotropic chains in a magneto-rheological fluid during aggregation and disaggregation processes.

8. The Great Asteroid Roast: Wast It Rare or Well-Done?: Many astronomers now believe most of the asteroids were cooked early on rather than being largely unaltered primordial stuff.

9. Confined Brownian motion.

10. In vivo cellular imaging of magnetically labeled hybridomas in the spleen with a 1.5-T clinical MRI system.

1. Microrheological consequences of attractive colloid-colloid potentials in a two-dimensional Brownian fluid.

2. Ribbons of superparamagnetic colloids in magnetic field.

3. Effect of volume fraction on chains of superparamagnetic colloids at equilibrium.

4. Superparamagnetic colloids in viscous fluids.