Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Colloids and Suspensions01:17

Colloids and Suspensions

3.4K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
3.4K
The Colloidal State01:29

The Colloidal State

184
The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called...
184
Colloids03:22

Colloids

17.1K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.1K
Colloidal precipitates01:09

Colloidal precipitates

5.7K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
5.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Active and passive microrheology with large tracers in hard colloids.

The Journal of chemical physics·2023
Same author

Dynamics and friction of a large colloidal particle in a bath of hard spheres: Langevin dynamics simulations and hydrodynamic description.

Physical review. E·2020
Same author

Critical force in active microrheology.

Physical review. E·2020
Same author

A model for foreign exchange markets based on glassy Brownian systems.

PloS one·2017
Same author

Diffusive and Arrestedlike Dynamics in Currency Exchange Markets.

Physical review letters·2017
Same author

Active microrheology in a colloidal glass.

Physical review. E·2016

Related Experiment Video

Updated: Apr 29, 2026

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions
11:38

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions

Published on: April 19, 2018

7.7K

Microrheology of colloidal systems.

A M Puertas1, T Voigtmann

  • 1Group of Complex Fluids Physics, Department of Applied Physics, University of Almeria, 04120 Almeria, Spain.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|May 23, 2014
PubMed
Summary

This review explores microrheology, a technique using colloidal tracers to measure soft matter properties. It covers passive and active microrheology models, detailing their theoretical frameworks and experimental applications in colloidal suspensions.

More Related Videos

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
09:08

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

13.4K
Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

11.5K

Related Experiment Videos

Last Updated: Apr 29, 2026

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions
11:38

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions

Published on: April 19, 2018

7.7K
Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering
09:08

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

13.4K
Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

11.5K

Area of Science:

  • Soft matter physics
  • Colloidal science
  • Rheology

Background:

  • Microrheology measures soft matter properties using colloidal tracers.
  • Passive microrheology uses probe diffusion; active microrheology applies external forces.
  • This review focuses on theoretical models for single-probe motion in colloidal systems.

Purpose of the Study:

  • To review theoretical models for passive and active microrheology.
  • To discuss advancements beyond simple continuum fluid models.
  • To highlight applications in model colloidal host media.

Main Methods:

  • Generalizations of the Stokes-Einstein relation for passive microrheology.
  • Microscopic equations of motion and Smoluchowski equation for active microrheology.
  • Mode-coupling approximation and integration through transients for dense suspensions.

Main Results:

  • Theoretical models for both passive and active microrheology are presented.
  • Refined models account for non-Newtonian behavior and probe-size effects.
  • Active microrheology models predict nonlinear responses and localization transitions.

Conclusions:

  • Theoretical models provide a framework for understanding microrheology.
  • Discrepancies between theory and simulations highlight areas for future research.
  • Microrheology offers powerful insights into soft matter dynamics.