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Colloids

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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...

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Related Experiment Video

Updated: Aug 20, 2025

Real-Time Force Measurement Between Emulsion Droplets During Enzymatic Breakdown

Real-Time Force Measurement Between Emulsion Droplets During Enzymatic Breakdown

Published on: June 27, 2025

Multiscale combined techniques for evaluating emulsion stability: A critical review.

Hui Niu¹, Wenduo Wang², Zuman Dou³

¹Hainan University-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 People Road, Haikou 570228, PR China; SCUT-Zhuhai Institute of Modern Industrial Innovation, School of Food Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, PR China.

Advances in Colloid and Interface Science

|November 20, 2022

Summary

Emulsion stability depends on interfacial film properties. This review details multiscale methods to study emulsion instability and optimize interfacial films for tailored delivery systems.

Keywords:

Adsorption mass Emulsion stability Interfacial film thickness Interfacial rheology Oil-water interface

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Last Updated: Aug 20, 2025

Real-Time Force Measurement Between Emulsion Droplets During Enzymatic Breakdown

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Published on: June 27, 2025

Self-Nanoemulsification of Healthy Oils to Enhance the Solubility of Lipophilic Drugs

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In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids

In vitro Digestion of Emulsions in a Single Droplet via Multi Subphase Exchange of Simulated Gastrointestinal Fluids

Published on: November 18, 2022

Area of Science:

Colloid and Surface Science
Materials Science
Chemical Engineering

Background:

Emulsions are inherently unstable, thermodynamically driven systems.
The behavior of emulsifier molecules at the oil-water interface and interfacial film properties critically influence emulsion stability.
Understanding these factors is crucial for developing stable emulsion-based systems.

Purpose of the Study:

To comprehensively review emulsion instability phenomena and mechanisms.
To discuss the impact of interfacial films on long-term emulsion stability.
To present a systematic approach using multiscale combined methods for studying emulsion stability.

Main Methods:

Droplet size and distribution analysis
Zeta-potential measurements
Continuous phase viscosity determination
Interfacial film characterization (adsorption mass, thickness)
Interfacial rheology (dilatational and shear)
Particle tracking microrheology
Interfacial film visualization techniques
Molecular dynamics simulations
Quantitative emulsion stability evaluation

Main Results:

A summary of current research progress in emulsion stability.
A systematic framework of multiscale combined techniques for studying emulsion stability.
Insights into the relationship between interfacial film properties and emulsion performance.

Conclusions:

The presented multiscale methods offer a comprehensive approach to understanding and predicting emulsion stability.
Tailoring interfacial film properties is key to designing emulsion-based delivery systems with specific stability, digestibility, and utilization characteristics.
This review serves as a valuable guide for researchers and developers in the field of emulsion science.