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

173
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...
173
Colloidal precipitates01:09

Colloidal precipitates

5.7K
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...
5.7K
Colloids03:22

Colloids

17.1K
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...
17.1K
Colloids and Suspensions01:17

Colloids and Suspensions

3.4K
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...
3.4K
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

5.8K
In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
5.8K

You might also read

Related Articles

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

Sort by
Same author

Structural criterion for the onset of rigidity in a colloidal gel.

Physical review. E·2025
Same author

Wetting of a solid surface by active matter.

Soft matter·2021
Same author

Modeling of Cell-Mediated Self-Assembled Colloidal Scaffolds.

ACS applied materials & interfaces·2020
Same author

Smoluchowski equations for linker-mediated irreversible aggregation.

Soft matter·2020
Same author

Optimal number of linkers per monomer in linker-mediated aggregation.

Soft matter·2019
Same author

Effective squirmer models for self-phoretic chemically active spherical colloids.

The European physical journal. E, Soft matter·2018
Same journal

Correction: Effect of external salt solution concentration on carboxyl dissociation degree (<i>α</i>) and p<i>K</i><sub>a</sub> of weak polyelectrolyte membranes for sustainable technologies.

Soft matter·2026
Same journal

Anomalous dewetting dynamics in active entangled polymer films: flexible chains.

Soft matter·2026
Same journal

Electrorheology of the suspensions of oblate poly(ionic liquid) ellipsoids.

Soft matter·2026
Same journal

Nanopore sequencing with proteins: synchronization and dischronization of molecular dynamics simulations with laboratory and industrial developments.

Soft matter·2026
Same journal

Catanionics from biosurfactants and regular surfactants: miscibility and structure.

Soft matter·2026
Same journal

Adhesives with a thickness smaller than the fractocohesive length enhance adhesion.

Soft matter·2026
See all related articles

Related Experiment Video

Updated: Apr 21, 2026

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
08:01

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

7.7K

Particle selection through topographic templates in nematic colloids.

Z Eskandari1, N M Silvestre, M M Telo da Gama

  • 1Centro de Física Teórica e Computacional, Universidade de Lisboa, Avenida Professor Gama Pinto 2, PT-1649-003 Lisboa, Portugal. nmsilvestre@fc.ul.pt.

Soft Matter
|November 4, 2014
PubMed
Summary
This summary is machine-generated.

Researchers used surface topography to control liquid crystal colloid assembly. This method guides the formation of large, symmetric colloidal crystals, crucial for photonic applications.

More Related Videos

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

2.4K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.5K

Related Experiment Videos

Last Updated: Apr 21, 2026

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
08:01

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

7.7K
Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

2.4K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.5K

Area of Science:

  • Materials Science
  • Soft Matter Physics
  • Colloid Science

Background:

  • Liquid crystal colloids are promising for responsive photonic crystals.
  • Large-scale colloidal crystal growth is challenging.
  • Template-assisted assembly offers controlled symmetry growth.

Purpose of the Study:

  • To investigate topographic modulation of surfaces for particle selection and localization in nematic colloids.
  • To explore how convex and concave surface deformations influence colloid-surface interactions.

Main Methods:

  • Simulated interactions between colloidal particles and patterned surfaces in a nematic liquid crystal.
  • Analysis of elastic interactions and anchoring conditions.

Main Results:

  • Surface topography can switch colloid-surface interactions from repulsion to attraction.
  • Particles with matching anchoring conditions are attracted to concave dimples.
  • Particles with different anchoring conditions are pinned to convex protrusions.

Conclusions:

  • Topographic patterning enables precise control over colloidal particle placement.
  • Tunable, long-range surface-colloid interactions facilitate large colloidal crystal assembly.
  • This approach is vital for developing photonic crystals with defined symmetries for applications.