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...
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...
Colloids03:22

Colloids

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...
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...
Coagulation01:06

Coagulation

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...
Washing, Drying, and Ignition of Precipitates00:52

Washing, Drying, and Ignition of Precipitates

After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...

You might also read

Related Articles

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

Sort by
Same author

Mechanisms of electrolyte (coagulant) dipping for thin nitrile gloves.

Soft matter·2026
Same author

Differing growth dynamics in seed-grown planar vertical chemical gardens.

Soft matter·2026
Same author

Diffusion-controlled growth of a planar chemical garden wall before osmotic fracture.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2025
Same author

Local Ionic Conditions Modulate the Aggregation Propensity and Influence the Structural Polymorphism of α-Synuclein.

Journal of the American Chemical Society·2025
Same author

Organic-Inorganic Multilayer Microcarriers with Superior Mechanical Properties for Potential Active Delivery in Fast-Moving Consumer Goods.

Industrial & engineering chemistry research·2025
Same author

Nonspherical Particle Stabilized Emulsions Formed through Destabilization and Arrested Coalescence.

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

Gap between quantum theory based on real and complex numbers is arbitrarily large.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Rashba-like spin splitting in inversion symmetric plasmonic metasurface.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Classification and correlation signatures of chiral spin liquids on the pyrochlore lattice.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Physical sampling for computational photography.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

A comprehensive review on master stability functions in complex network dynamics.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same journal

Switchable band alignment in 2D-perovskite/WS<sub>2</sub>heterostructures for tunable exciton transport and valley polarization.

Reports on progress in physics. Physical Society (Great Britain)·2026
See all related articles

Related Experiment Video

Updated: May 13, 2026

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface
07:06

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface

Published on: April 7, 2017

Drying of thin colloidal films.

Alexander F Routh1

  • 1BP Institute and Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, UK. afr10@cam.ac.uk

Reports on Progress in Physics. Physical Society (Great Britain)
|March 19, 2013
PubMed
Summary
This summary is machine-generated.

Drying colloidal fluid films causes transitions like the coffee-ring effect and cracking. Capillary pressure drives these changes, impacting final film profiles and coating uniformity.

More Related Videos

Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects
05:02

Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects

Published on: June 22, 2019

Fabrication of Large-area Free-standing Ultrathin Polymer Films
10:08

Fabrication of Large-area Free-standing Ultrathin Polymer Films

Published on: June 3, 2015

Related Experiment Videos

Last Updated: May 13, 2026

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface
07:06

Methods for the Self-integration of Megamolecular Biopolymers on the Drying Air-LC Interface

Published on: April 7, 2017

Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects
05:02

Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects

Published on: June 22, 2019

Fabrication of Large-area Free-standing Ultrathin Polymer Films
10:08

Fabrication of Large-area Free-standing Ultrathin Polymer Films

Published on: June 3, 2015

Area of Science:

  • Colloidal science
  • Materials science
  • Fluid dynamics

Background:

  • Drying thin films of colloidal fluids leads to complex transitions.
  • The final film profile is highly dependent on the drying process dynamics.

Purpose of the Study:

  • To describe the drying process of colloidal fluid films.
  • To explain observed transitions including the coffee-ring effect, cracking, and de-wetting.
  • To explore methods for minimizing cracking and achieving stratified coatings.

Main Methods:

  • Analysis of particle consolidation and flow dynamics during droplet drying.
  • Explanation of capillary pressure effects in solidified regions.
  • Investigation of evaporative models and experimental techniques.

Main Results:

  • Particle accumulation at the droplet edge (coffee-ring effect) driven by outward flow.
  • Cracking formation due to capillary pressure in the drying film.
  • De-wetting phenomena observed as drying progresses.

Conclusions:

  • Capillary pressure is a key factor in drying transitions and film defects.
  • Methods exist to control cracking and achieve stratified coatings.
  • Understanding evaporation dynamics is crucial for controlling film formation.