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...
Van der Waals Interactions01:24

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,...
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...
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
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...

You might also read

Related Articles

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

Sort by
Same author

Size of chloroplasts in Arabidopsis mesophyll cells affects jasmonate biosynthesis.

Plant biology (Stuttgart, Germany)·2026
Same author

GUIDELINE-DIRECTED MEDICAL THERAPY FOR HEART FAILURE MANAGEMENT: ADDRESSING APPLICATIONS, BARRIERS AND OPTIMIZING IMPLEMENTATION.

Georgian medical news·2025
Same author

Uniportal robotic assisted surgery for anatomical lung resection-First German experience.

The international journal of medical robotics + computer assisted surgery : MRCAS·2023
Same author

Phytoremediation of toxic heavy metals in polluted soils and water of Dargai District Malakand Khyber Pakhtunkhwa, Pakistan.

Brazilian journal of biology = Revista brasleira de biologia·2022
Same author

Real-World Efficacy of Nintedanib Plus Docetaxel After Progression on Immune Checkpoint Inhibitors: Results From the Ongoing, Non-interventional VARGADO Study.

Clinical oncology (Royal College of Radiologists (Great Britain))·2022
Same author

[Management of Adult Community-Acquired Pneumonia and Prevention - Update 2021 - Guideline of the German Respiratory Society (DGP), the Paul-Ehrlich-Society for Chemotherapy (PEG), the German Society for Infectious Diseases (DGI), the German Society of Medical Intensive Care and Emergency Medicine (DGIIN), the German Viological Society (DGV), the Competence Network CAPNETZ, the German College of General Practitioneers and Family Physicians (DEGAM), the German Society for Geriatric Medicine (DGG), the German Palliative Society (DGP), the Austrian Society of Pneumology Society (ÖGP), the Austrian Society for Infectious and Tropical Diseases (ÖGIT), the Swiss Respiratory Society (SGP) and the Swiss Society for Infectious Diseases Society (SSI)].

Pneumologie (Stuttgart, Germany)·2021
Same journal

Immobilization of Ytterbium via Polyphenol Chemistry on Implant Materials for Enhanced Cytocompatibility and Antibacterial Properties.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Electrochemical Oxidation Strategy for Integrated CO<sub>2</sub> Capture and Conversion.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Probing Molecular Structural Changes of Buried Interfaces between Polyethylene and Nylon in Polymer Thin Films after Stretching.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Charge Dependence of Local Hydration Dynamics in Poly(Acrylic Acid) Solutions.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Amphiphilic Lubricants Linked by Hydrogen Bonds Achieve Superlubricity and Enhance Water/Oil Tribological Properties.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Spin Dewetting of Ultrathin Polymer Films.

Langmuir : the ACS journal of surfaces and colloids·2026
See all related articles

Related Experiment Video

Updated: Jun 5, 2026

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

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

Published on: July 18, 2014

Depletion force between anisometric colloidal particles.

S Krüger1, H-J Mögel, M Wahab

  • 1Department of Physical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.

Langmuir : the ACS Journal of Surfaces and Colloids
|December 22, 2010
PubMed
Summary
This summary is machine-generated.

A new mathematical model describes depletion forces between large colloidal particles using surface geometry. This model accurately predicts interaction potentials, validated by simulations, especially at lower depletant concentrations.

More Related Videos

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
10:38

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

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

Related Experiment Videos

Last Updated: Jun 5, 2026

Quantitative and Qualitative Examination of Particle-particle Interactions Using Colloidal Probe Nanoscopy
13:15

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

Published on: July 18, 2014

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
10:38

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

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

Area of Science:

  • Colloid science
  • Soft matter physics
  • Statistical mechanics

Background:

  • Depletion forces arise from osmotic pressure in colloidal suspensions.
  • Understanding these forces is crucial for predicting colloidal self-assembly.
  • Existing models often simplify particle shapes.

Purpose of the Study:

  • To develop a simple mathematical model for depletion forces between large, convex colloidal particles.
  • To express the interaction potential using differential geometry concepts.
  • To validate the model against simulation data.

Main Methods:

  • Developed a mathematical model based on differential geometry.
  • Expressed interaction potential using mean and Gaussian curvature.
  • Performed Monte Carlo simulations for validation.

Main Results:

  • The model accurately predicts depletion forces for convex colloidal particles.
  • Theoretical predictions show excellent agreement with Monte Carlo simulations.
  • Model accuracy is high when the depletant particle density is not excessive.

Conclusions:

  • The proposed model offers a simplified yet accurate approach to calculating depletion forces.
  • Differential geometry provides a powerful tool for characterizing colloidal interactions.
  • The model's validity is confirmed for various particle geometries and arrangements.