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

Colloidal precipitates01:09

Colloidal precipitates

6.7K
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...
6.7K
The Colloidal State01:29

The Colloidal State

75
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...
75
Colloids03:22

Colloids

21.9K
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...
21.9K
Coagulation01:06

Coagulation

1.6K
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...
1.6K
Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

3.0K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
3.0K
Electrolytes: van't Hoff Factor03:08

Electrolytes: van't Hoff Factor

37.5K
Colligative Properties of Electrolytes
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...
37.5K

You might also read

Related Articles

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

Sort by
Same author

Energy-efficient time series processing in real-time with fluidic iontronic memristor circuits.

Faraday discussions·2026
Same author

Echo state and band-pass networks with aqueous memristors: Leaky reservoir computing with a leaky substrate.

Chaos (Woodbury, N.Y.)·2025
Same author

Asymmetric Rectified Electric Fields for Symmetric Electrolytes.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

Asymmetric rectified electric fields: nonlinearities and equivalent circuits.

Soft matter·2024
Same author

Iontronic Neuromorphic Signaling with Conical Microfluidic Memristors.

Physical review letters·2023
Same author

Unveiling the capabilities of bipolar conical channels in neuromorphic iontronics.

Faraday discussions·2023
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Mar 15, 2026

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

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

Published on: August 2, 2012

19.3K

Tuning Colloid-Interface Interactions by Salt Partitioning.

J C Everts1, S Samin1, R van Roij1

  • 1Institute for Theoretical Physics, Center for Extreme Matter and Emergent Phenomena, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands.

Physical Review Letters
|September 10, 2016
PubMed
Summary
This summary is machine-generated.

The interaction between oil-dispersed colloidal particles and oil-water interfaces can be tuned from attractive to repulsive. This tunability is achieved by controlling colloidal charge and ion hydrophilicity, with implications for Pickering emulsions.

More Related Videos

A Micro-agar Salt Bridge Electrode for Analyzing the Proton Turnover Rate of Recombinant Membrane Proteins
08:09

A Micro-agar Salt Bridge Electrode for Analyzing the Proton Turnover Rate of Recombinant Membrane Proteins

Published on: January 7, 2019

9.6K
Microbubble Fabrication of Concave-porosity PDMS Beads
11:52

Microbubble Fabrication of Concave-porosity PDMS Beads

Published on: December 15, 2015

8.8K

Related Experiment Videos

Last Updated: Mar 15, 2026

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

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

Published on: August 2, 2012

19.3K
A Micro-agar Salt Bridge Electrode for Analyzing the Proton Turnover Rate of Recombinant Membrane Proteins
08:09

A Micro-agar Salt Bridge Electrode for Analyzing the Proton Turnover Rate of Recombinant Membrane Proteins

Published on: January 7, 2019

9.6K
Microbubble Fabrication of Concave-porosity PDMS Beads
11:52

Microbubble Fabrication of Concave-porosity PDMS Beads

Published on: December 15, 2015

8.8K

Area of Science:

  • Colloid and Interface Science
  • Physical Chemistry

Background:

  • Understanding particle-interface interactions is crucial for controlling emulsion stability.
  • Colloidal particle behavior at interfaces is influenced by surface charge and surrounding ions.

Purpose of the Study:

  • To investigate the tunable interaction between oil-dispersed colloidal particles and oil-water interfaces.
  • To explore the interplay between self-regulated colloidal surface charge and interfacial electrical double layers.

Main Methods:

  • Theoretical analysis of colloidal particle-interface interactions.
  • Charge regulation mechanisms controlling colloidal surface charge.
  • Analysis of electrostatic interactions influenced by ion hydrophilicity.

Main Results:

  • Colloidal particle-interface interactions are highly tunable, ranging from attractive to repulsive.
  • Control over interaction is achieved by modifying colloidal charge sign and ion hydrophilicity.
  • The study elucidates the interplay between colloidal surface charge and interfacial double layers.

Conclusions:

  • The findings provide a mechanistic explanation for recent experimental observations.
  • The results offer a pathway for designing and tuning Pickering emulsions with desired properties.