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

629
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...
629
Colloids03:22

Colloids

17.6K
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...
17.6K
Coagulation01:06

Coagulation

334
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...
334
Colloids and Suspensions01:17

Colloids and Suspensions

1.9K
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 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...
1.9K
Solubility03:00

Solubility

17.6K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
17.6K
Precipitation Processes01:12

Precipitation Processes

495
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
495

You might also read

Related Articles

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

Sort by
Same author

Closed Loop Navigation of a Complex State Space: Assembling Anisotropic Colloids into Perfect Crystals.

ACS nano·2026
Same author

Drug & virus transport across biological barriers: interactions, diffusion, partitioning, permeability, and selectivity.

Soft matter·2026
Same author

Feedback Controlled Reconfiguration of Ellipsoidal Colloids between Interfacial Liquid, Nematic, and Crystal States.

ACS applied materials & interfaces·2025
Same author

Fabrication and Modeling of a Thermoreversible Modular Core-Shell Colloidal System.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Liquid, liquid crystal, and crystal states of different shaped colloids in nonuniform fields via osmotic force balance.

The Journal of chemical physics·2024
Same author

Simple Models of Directly Measured Energy Landscapes for Different Shaped Particles in Nonuniform AC Electric Fields.

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

Laser-Assisted Electrochemical Deposition of Bilateral Au Coatings on Ni Foils: Mechanism and Experimental Study.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Mechanistic Insights into Pulmonary Surfactant Inactivation.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

MPN-GE Bilayer Interphase Construction: Green Modification Derived from Biomass and Synergistic Enhancement of CFRP.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Magnetically Retrievable Core@Shell Nanocomposites for Rare Earth Element Adsorption: Experimental and Machine Learning Insights.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Microstreaming of a Pneumatically Controlled Bubble under Hydrostatic Pressure and Crossflow.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Tuning Pore Sizes of Core-Shell Dendritic Mesoporous Silica Nanoparticles for Efficient Loading of Functional Materials.

Langmuir : the ACS journal of surfaces and colloids·2026
See all related articles

Related Experiment Video

Updated: Jul 26, 2025

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.9K

Colloidal Deposition by Polymer-Surfactant Complexes with Dilution and Shear.

Lechuan Zhang1, Huda A Jerri2, Michael A Bevan1

  • 1Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States.

Langmuir : the ACS Journal of Surfaces and Colloids
|June 14, 2023
PubMed
Summary
This summary is machine-generated.

This study reveals how to control silica microparticle deposition on glass by tuning polymer-surfactant mixtures and shear rates. Informed design allows programming colloidal deposition for diverse applications.

More Related Videos

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

12.2K
Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
11:42

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

7.9K

Related Experiment Videos

Last Updated: Jul 26, 2025

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.9K
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

12.2K
Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
11:42

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

7.9K

Area of Science:

  • Colloid and Surface Science
  • Materials Science
  • Polymer Chemistry

Background:

  • Understanding colloidal particle deposition is crucial for material fabrication and surface modification.
  • Polymer-surfactant interactions significantly influence colloidal behavior, affecting adhesion and stability.
  • Controlling particle deposition under flow conditions remains a challenge in various industrial processes.

Purpose of the Study:

  • To investigate the deposition, detachment, and redeposition dynamics of silica microparticles on glass substrates.
  • To elucidate the role of cationic polymer-anionic surfactant composition and applied shear rate on particle behavior.
  • To develop a method for programming colloidal deposition through controlled environmental conditions.

Main Methods:

  • Utilized optical microscopy in a flow cell to observe silica microparticle behavior.
  • Applied programmed shear and dilution profiles to induce and monitor deposition, detachment, and redeposition.
  • Measured shear-dependent torque on particles to quantify adhesive forces mediated by polymer-surfactant complexes.

Main Results:

  • Depletion-driven deposition at low shear rates (∼100 s⁻¹) detached easily due to weak adhesion.
  • Particles resisted detachment up to higher shear rates (∼2000 s⁻¹) due to strong polymer bridging, likely from surfactant removal.
  • Pathway dependence observed in polymer-surfactant de-complexation, leading to shear-resistant structures.

Conclusions:

  • Colloidal deposition behavior can be programmed by carefully designing initial polymer-surfactant compositions and shear profiles.
  • The developed particle trajectory analysis serves as a screening tool for composition-dependent colloidal deposition.
  • Findings offer insights for tailored surface functionalization and advanced materials design.