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...

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...

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...

Noncovalent Attractions in Biomolecules

Noncovalent Attractions in Biomolecules

Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...

Noncovalent Attractions in Biomolecules

Noncovalent Attractions in Biomolecules

Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...

Van der Waals Interactions

Van der Waals Interactions

Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.Polar molecules have a partial positive charge on one end and a partial negative charge on the other end of the molecule,...

You might also read

Related Articles

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

Sort by

Same author

Field-induced alignment dynamics in suspensions of polarizable rods.

Physical review. E·2026

Same author

Phenol release from pNIPAM hydrogels: scaling molecular dynamics simulations with dynamical density functional theory.

Soft matter·2022

Same author

Stability of binary colloids: kinetic and structural aspects of heteroaggregation processes.

Soft matter·2020

Same author

Visceral infection by <i>Porocephalus</i> spp. (Pentastomida) in Neotropical wild mammals.

Journal of helminthology·2020

Same author

Crossover of the effective charge in ionic thermoresponsive hydrogel particles.

Physical review. E·2019

Same author

Electrostatic depletion effects on the stability of colloidal dispersions of sepiolite and natural rubber latex.

Journal of colloid and interface science·2019

Search research articles

Related Experiment Video

Updated: Jul 15, 2026

Synthesis and Characterization of Supramolecular Colloids

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Two-dimensional colloidal aggregation mediated by the range of repulsive interactions.

J C Fernández-Toledano¹, A Moncho-Jordá, F Martínez-López

¹Grupo de Física de Fluidos y Biocoloides, Departamento de Física Aplicada, Facultad de Ciencias, Campus Fuentenueva S/N, 18071 Granada, Spain.

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

|May 16, 2007

Summary

The interaction range and strength in colloidal systems significantly impact aggregate structure, favoring linear arrangements. Repulsive forces create distinct aggregation regimes, transitioning from repulsion-dominated to diffusion-controlled kinetics.

More Related Videos

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

Related Experiment Videos

Last Updated: Jul 15, 2026

Synthesis and Characterization of Supramolecular Colloids

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy

Published on: July 18, 2014

Area of Science:

Colloid Science
Materials Science
Computational Physics

Background:

Colloidal systems exhibit complex aggregation behaviors influenced by interparticle forces.
Understanding these forces is crucial for controlling material properties and predicting system evolution.

Purpose of the Study:

To investigate the effect of interaction range and strength on the structural and kinetic properties of a 2D colloidal system.
To analyze the formation of aggregate structures and identify distinct aggregation regimes.
To develop a method for quantifying the impact of interaction range on aggregation rates.

Main Methods:

Computer simulations of a two-dimensional aggregating colloidal system.
Modeling interparticle interactions using a repulsive Yukawa potential with variable range (kappa(d)) and contact potential (V0).
Analysis of structural arrangements and kinetic behavior across different time scales.

Main Results:

Increased interaction range or V0 leads to the formation of linear aggregate structures.
Three distinct aggregation regimes were identified: repulsion-dominated, reaction-limited-cluster-aggregation, and diffusion-controlled.
The transition between regimes is dependent on the relationship between cluster size and interaction range.

Conclusions:

The range and strength of repulsive interactions are critical determinants of colloidal aggregate morphology and aggregation kinetics.
The identified aggregation regimes provide a framework for understanding colloidal assembly under varying interaction potentials.
The developed method allows for direct simulation-based quantification of interaction effects on aggregation rates.