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

The Colloidal State01:29

The Colloidal State

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 the...
Colloidal precipitates01:09

Colloidal precipitates

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...
Coagulation01:06

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
Colloids03:22

Colloids

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...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...

You might also read

Related Articles

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

Sort by
Same author

Closed Loop Navigation of a Complex State Space: Assembling Anisotropic Colloids into Perfect Crystals.

ACS nano·2026
Same author

Drug & virus transport across biological barriers: interactions, diffusion, partitioning, permeability, and selectivity.

Soft matter·2026
Same author

Feedback Controlled Reconfiguration of Ellipsoidal Colloids between Interfacial Liquid, Nematic, and Crystal States.

ACS applied materials & interfaces·2025
Same author

Fabrication and Modeling of a Thermoreversible Modular Core-Shell Colloidal System.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Energy landscapes for interfacial colloidal crystallization on three-dimensional surface topographies.

Journal of colloid and interface science·2025
Same author

Liquid, liquid crystal, and crystal states of different shaped colloids in nonuniform fields via osmotic force balance.

The Journal of chemical physics·2024

Related Experiment Video

Updated: Jun 19, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Interactions and microstructures in electric field mediated colloidal assembly.

Jaime J Juárez1, Michael A Bevan

  • 1Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA.

The Journal of Chemical Physics
|October 10, 2009
PubMed
Summary
This summary is machine-generated.

Researchers studied micron-sized colloids in electric fields, observing how induced dipoles (IDs) form structures like chains and crystals. They quantified interactions, finding that particle concentration affects dipole behavior.

More Related Videos

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

Related Experiment Videos

Last Updated: Jun 19, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

Area of Science:

  • Colloid Science
  • Soft Matter Physics
  • Electrokinetics

Background:

  • Colloidal systems exhibit complex behaviors influenced by external fields.
  • Understanding particle interactions is crucial for controlling microstructure formation.

Purpose of the Study:

  • To investigate microstructure formation in colloidal suspensions under AC electric fields.
  • To quantify interactions between induced dipoles (IDs) and inhomogeneous electric fields (IFs).
  • To analyze the effect of particle concentration on ID-ID interactions.

Main Methods:

  • Video microscopy measurements of micron-sized colloids.
  • Computer simulations of quasi-two-dimensional colloid configurations.
  • Analysis of single colloid behavior in electric fields.
  • Inverse Monte Carlo analysis for concentrated systems.

Main Results:

  • Observed microstructures: confined hard disk fluids, oriented dipolar chains, and hexagonal close-packed crystals.
  • Direct measurement of ID-IF interactions by analyzing single colloids.
  • Extracted ID-ID interactions in concentrated systems.
  • A single parameter explained the weakening of IDs due to local particle concentration.

Conclusions:

  • Particle concentration and configuration significantly influence induced dipole interactions.
  • The study provides a quantitative model for colloid behavior in AC electric fields.
  • This work advances the understanding of self-assembly in electric field-driven colloidal systems.