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Related Concept Videos

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...
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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...
Recrystallization: Solid–Solution Equilibria01:10

Recrystallization: Solid–Solution Equilibria

Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
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Colloids and Suspensions01:17

Colloids and Suspensions

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...
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...

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Related Experiment Video

Updated: May 18, 2026

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

Colloidal cluster crystallization dynamics.

Daniel J Beltran-Villegas1, Ray M Sehgal, Dimitrios Maroudas

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

The Journal of Chemical Physics
|October 9, 2012
PubMed
Summary
This summary is machine-generated.

We modeled colloidal cluster crystallization dynamics using a low-dimensional Smoluchowski equation. Two order parameters effectively describe condensation and crystallinity, enabling a simplified understanding of these complex processes.

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Synthesis and Characterization of Supramolecular Colloids
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Synthesis and Characterization of Supramolecular Colloids

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Last Updated: May 18, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
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Published on: May 20, 2014

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Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Area of Science:

  • Colloidal science
  • Statistical mechanics
  • Computational physics

Background:

  • Colloidal crystallization is a fundamental process in materials science.
  • Understanding the dynamics of colloidal cluster formation is crucial for designing novel materials.
  • Existing models often require high-dimensional representations, limiting computational efficiency.

Purpose of the Study:

  • To develop a low-dimensional model for colloidal crystallization dynamics.
  • To identify key order parameters governing the crystallization process.
  • To extract and validate free energy and diffusivity landscapes.

Main Methods:

  • Modeling colloidal cluster crystallization using a low-dimensional Smoluchowski equation.
  • Employing diffusion mapping to identify essential order parameters.
  • Utilizing Bayesian inference on Brownian dynamics simulations to extract free energy and diffusivity landscapes.
  • Validating results against Monte Carlo and dynamic simulations.

Main Results:

  • Two order parameters were identified as sufficient to describe the crystallization dynamics.
  • Free energy and diffusivity landscapes were successfully extracted using the identified order parameters.
  • The developed model accurately reproduced simulation data, with validated free energy landscapes and mean first-passage times.

Conclusions:

  • A low-dimensional model effectively captures colloidal crystallization dynamics.
  • The identified order parameters provide a simplified yet accurate description of condensation and crystallinity.
  • This approach facilitates efficient analysis and prediction of colloidal self-assembly processes.