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

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...
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...
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...

You might also read

Related Articles

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

Sort by
Same author

Alternol-Induced Oxidative Modification of SQSTM1/p62 Is Associated with Nrf2 Signaling and Autophagy-Related Responses in Prostate Cancer Cells.

Antioxidants (Basel, Switzerland)·2026
Same author

A Flexible Capacitive Humidity Sensor Enabled by LIG-Anchored Synergistic GO-PEDOT:PSS-MXene Composite.

Materials (Basel, Switzerland)·2026
Same author

Selective H<sub>2</sub> Production upon NH<sub>3</sub>BH<sub>3</sub> Hydrolysis over a Magnetic Cu/Ni-CMS Catalyst.

Inorganic chemistry·2026
Same author

Carbon Dot-Assisted Hydrothermal Synthesis of Copper Doped Tin Disulfide Nanosheets for Optoelectronic Applications.

Materials (Basel, Switzerland)·2026
Same author

Reduced follicular helper T cells in peripheral blood marks a distinct feature of retroperitoneal fibrosis.

Rheumatology (Oxford, England)·2026
Same author

Cucurbit[8]uril-Directed Facet Engineering of Zn-Based Catalysts for PET Methanolysis.

Inorganic chemistry·2026
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

Related Experiment Video

Updated: Jul 3, 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

Direct visualization of colloidal gelation under confinement.

Prasad S Sarangapani1, Yanghai Yu, Jiang Zhao

  • 1Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|July 23, 2008
PubMed
Summary
This summary is machine-generated.

Spatial confinement triggers colloidal gelation via spinodal decomposition. This process, observed in confined colloidal suspensions, leads to structural arrest and enhanced viscoelasticity as the film thickness nears 16-25 particle layers.

More Related Videos

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels

Published on: September 8, 2016

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging
07:41

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging

Published on: December 4, 2020

Related Experiment Videos

Last Updated: Jul 3, 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

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels

Published on: September 8, 2016

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging
07:41

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging

Published on: December 4, 2020

Area of Science:

  • Colloid and interface science
  • Soft matter physics
  • Materials science

Background:

  • The physical mechanisms governing colloidal gelation, especially at higher concentrations, are not fully understood.
  • Direct experimental investigation of structural and viscoelastic property evolution during gelation is limited.
  • Understanding gelation is crucial for applications in food, pharmaceuticals, and materials.

Purpose of the Study:

  • To investigate the coupled structural and dynamic properties of colloidal gelation under spatial confinement.
  • To elucidate the physical mechanisms driving gelation in confined geometries.
  • To correlate structural evolution with viscoelastic changes during the gelation transition.

Main Methods:

  • Utilized a custom-built micron-gap rheometer for precise sample confinement.
  • Employed confocal microscopy for in-situ visualization of colloidal particle dynamics and structure.
  • Combined rheological measurements with structural imaging to probe gelation.

Main Results:

  • Confinement-induced gelation follows a spinodal decomposition pathway.
  • Confined colloidal suspensions separate into colloid-rich and colloid-poor regions.
  • Structural arrest and significant viscoelastic enhancement occur as film thickness approaches 16-25 particle layers.

Conclusions:

  • Spatial confinement is a key factor in controlling colloidal gelation dynamics.
  • Spinodal decomposition drives the formation of gel structures under confinement.
  • The observed critical film thickness provides a quantitative insight into confinement effects on gelation.