Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Colloidal precipitates

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...

Colloids

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...

Precipitate Formation and Particle Size Control

Precipitate Formation and Particle Size Control

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...

You might also read

Related Articles

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

Sort by

Same author

Machine-learning-enabled solvent engineering for uniform quantum dot packing in efficient and stable quantum-dot light-emitting diodes.

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

Same author

Particle Size-Driven Transition from Multilayer Aggregates to Ordered Monolayers at Gas Marble Interfaces.

Langmuir : the ACS journal of surfaces and colloids·2026

Same author

Solvent-Free Seeded Dispersion Polymerization toward Core-Shell Particles and Microcapsules.

Langmuir : the ACS journal of surfaces and colloids·2026

Same author

Positive Aging-Free Quantum Dot Light-Emitting Diodes Enabled by Single-Source Chloride-Doped ZnMgO Electron Transport Layers.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

A Super-Adhesive Air Filter With Capillarity-Mediated Spontaneous Particle Absorption via Dynamic Bond Exchange.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Fabrication of Janus Supraparticles by Induced Phase Separation by Gravity.

ACS nano·2026

Search research articles

Related Experiment Video

Updated: Jul 20, 2025

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Published on: April 17, 2018

Evaporation-driven Supraparticle Synthesis by Self-Lubricating Colloidal Dispersion Microdrops.

Jeongbin Heo¹, Jaeseung Lee¹, Wonmi Shim¹

¹School of Chemical Engineering and Materials Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.

ACS Applied Materials & Interfaces

|August 2, 2023

Summary

Researchers developed a scalable method for mass-producing supraparticles using an Ouzo-like colloidal dispersion. This technique overcomes limitations of previous surface-templated evaporation-driven (S-TED) methods, enabling efficient fabrication of defined supraparticle arrays.

Keywords:

colloidal assembly micro-wetting pattern self-lubrication supraparticles wetting

More Related Videos

Glass-Based Devices to Generate Drops and Emulsions

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

Synthesis and Characterization of Supramolecular Colloids

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Related Experiment Videos

Last Updated: Jul 20, 2025

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Published on: April 17, 2018

Glass-Based Devices to Generate Drops and Emulsions

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

Synthesis and Characterization of Supramolecular Colloids

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Area of Science:

Materials Science
Colloid and Surface Chemistry

Background:

Surface-templated evaporation-driven (S-TED) methods enable supraparticle fabrication but face mass production challenges.
Existing methods struggle with contact line pinning on hydrophilic templates, hindering scalable synthesis.

Purpose of the Study:

To introduce a scalable, evaporation-driven method for synthesizing supraparticle arrays.
To overcome contact line pinning issues in microdrop arrays for improved supraparticle formation.

Main Methods:

Fabrication of hydrophilic micropatterns on hydrophobic substrates to template microdrop arrays.
Utilizing an Ouzo-like colloidal dispersion with controllable wettability and self-lubrication properties.
Drying arrays of self-lubricating colloidal dispersion microdrops to form supraparticles.

Main Results:

Successful fabrication of supraparticle arrays using the novel evaporation-driven method.
The Ouzo-like dispersion's self-lubrication effect enabled smooth contact line recession during evaporation.
Overcame contact line pinning on hydrophilic micropatterns, facilitating supraparticle formation.

Conclusions:

The developed method offers a scalable and promising approach for large-scale supraparticle synthesis.
The strategy is adaptable to various primary colloidal particles, broadening its applicability.
This advancement addresses mass production limitations in S-TED methods for supraparticle fabrication.