Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The Colloidal State

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 precipitates

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...

Coagulation

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...

Colloids

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...

Colloids and Suspensions

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...

Cationic Chain-Growth Polymerization: Mechanism

Cationic Chain-Growth Polymerization: Mechanism

The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...

You might also read

Related Articles

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

Sort by

Same author

Quantitative Description of the Surface Tension Minimum in a Two-Component Surfactant System.

Langmuir : the ACS journal of surfaces and colloids·2025

Same author

Fusion Pores Live on the Edge.

The journal of physical chemistry letters·2020

Same author

Tolman lengths and rigidity constants of multicomponent fluids: Fundamental theory and numerical examples.

The Journal of chemical physics·2018

Same author

Interfacial Tension of Phase-Separated Polydisperse Mixed Polymer Solutions.

The journal of physical chemistry. B·2017

Same author

Note: A new truncation correction for the configurational temperature extends its applicability to interaction potentials with a discontinuous force.

The Journal of chemical physics·2016

Same author

Decreased Interfacial Tension of Demixed Aqueous Polymer Solutions due to Charge.

Physical review letters·2015

Search research articles

Related Experiment Video

Updated: Jun 8, 2026

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

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

Published on: April 19, 2018

Wetting reversal in colloid-polymer systems.

Edgar M Blokhuis¹, Joris Kuipers

¹Leiden Institute of Chemistry, P.O. Box 9502, 2300 RA Leiden, The Netherlands.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|September 28, 2010

Summary

This summary is machine-generated.

This study analyzes colloid-polymer mixture wetting on surfaces using free volume theory. Researchers found a size ratio threshold where wetting transitions to drying, occurring near the critical point.

More Related Videos

Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Published on: June 8, 2016

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Related Experiment Videos

Last Updated: Jun 8, 2026

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

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

Published on: April 19, 2018

Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Published on: June 8, 2016

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Area of Science:

Colloid and Polymer Science
Surface Science
Physical Chemistry

Background:

Phase-separated colloid-polymer mixtures exhibit complex interfacial behavior.
Understanding wetting phenomena is crucial for material science and nanotechnology.
Previous studies have explored wetting in similar systems.

Purpose of the Study:

To analyze the wetting behavior of phase-separated colloid-polymer mixtures on a hard wall.
To investigate the influence of colloid-polymer size ratio on wetting properties.
To determine the nature of wetting transitions using free volume theory.

Main Methods:

Application of free volume theory within a Nakanishi-Fisher-type approach.
Development and analysis of wetting phase diagrams for various model approximations.
Comparison of theoretical results with existing experimental and theoretical analyses.

Main Results:

Identification of a crossover from wetting to drying behavior.
Determination of a threshold colloid-polymer size ratio for this transition.
Characterization of the wetting transitions as second-order phenomena near the critical point.

Conclusions:

The colloid-polymer size ratio is a critical parameter governing wetting transitions.
Free volume theory provides a valuable framework for understanding these complex interfacial phenomena.
The findings offer insights into the phase behavior of mixtures at interfaces.