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

6.6K
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...
6.6K
The Colloidal State01:29

The Colloidal State

45
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...
45
Colloids03:22

Colloids

21.8K
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...
21.8K
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
Micelles01:30

Micelles

78
Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
78

You might also read

Related Articles

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

Sort by
Same author

Nanofluidic systems for ionic intelligence.

Nanoscale horizons·2026
Same author

Dynamical universality and vibrational divergence in 2D supercooled liquids, quasicrystals, and crystals.

Soft matter·2026
Same author

Dynamic bidirectional coupling of membrane morphology and rod organization in flexible vesicles.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Machine-learned many-body potentials for charged colloids reveal gas-liquid spinodal instabilities only in the strong-coupling regime of primitive models.

The Journal of chemical physics·2026
Same author

Hierarchical self-assembly of simple hard polyhedra into complex mesophases.

Nature communications·2025
Same author

Disentangling the Effects of Curvature and Misorientation on the Shrinkage Behavior of Loop-Shaped Grain Boundaries.

Physical review letters·2025

Related Experiment Video

Updated: Mar 6, 2026

Preparation of Giant Vesicles Encapsulating Microspheres by Centrifugation of a Water-in-oil Emulsion
05:43

Preparation of Giant Vesicles Encapsulating Microspheres by Centrifugation of a Water-in-oil Emulsion

Published on: January 24, 2017

15.2K

Depletion-Induced Encapsulation by Dumbbell-Shaped Patchy Colloids Stabilize Microspheres against Aggregation.

Joost R Wolters1, Joanne E Verweij1, Guido Avvisati2

  • 1Van 't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University , Utrecht 3584 CH, The Netherlands.

Langmuir : the ACS Journal of Surfaces and Colloids
|March 9, 2017
PubMed
Summary

Dumbbell-shaped colloids stabilize polystyrene microspheres by forming a protective layer. This encapsulation prevents microsphere aggregation, acting as a colloid-sized steric stabilizer.

More Related Videos

Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel
10:20

Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel

Published on: June 29, 2017

20.7K
Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids
10:51

Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids

Published on: October 13, 2021

3.8K

Related Experiment Videos

Last Updated: Mar 6, 2026

Preparation of Giant Vesicles Encapsulating Microspheres by Centrifugation of a Water-in-oil Emulsion
05:43

Preparation of Giant Vesicles Encapsulating Microspheres by Centrifugation of a Water-in-oil Emulsion

Published on: January 24, 2017

15.2K
Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel
10:20

Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel

Published on: June 29, 2017

20.7K
Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids
10:51

Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids

Published on: October 13, 2021

3.8K

Area of Science:

  • Colloid science
  • Materials science
  • Surface chemistry

Background:

  • Polystyrene microspheres are prone to aggregation.
  • Controlling particle interactions is crucial for material stability.
  • Patchy colloids offer tunable interaction properties.

Purpose of the Study:

  • To investigate the stabilization of polystyrene microspheres using dumbbell-shaped colloids.
  • To explore the role of sticky and nonsticky lobes in particle encapsulation.
  • To understand the effect of template curvature on dumbbell orientation.

Main Methods:

  • Experimental investigation of microsphere encapsulation.
  • Monte Carlo computer simulations.
  • Depletion attraction-induced interactions.

Main Results:

  • Dumbbell-shaped colloids partially encapsulate polystyrene microspheres.
  • A curvature-dependent orientation of dumbbells on microspheres was observed.
  • Encapsulation prevents microsphere aggregation, acting as a steric stabilizer.

Conclusions:

  • Dumbbell colloids effectively stabilize microspheres against aggregation.
  • Particle geometry and surface properties dictate encapsulation efficiency.
  • Further optimization may be needed to overcome kinetic constraints for optimal packing.