colloid

Also known as colloids

A colloid is a mixture in which one substance, consisting of microscopically dispersed insoluble particles, is suspended throughout another substance. Some definitions specify that the particles must be dispersed in a liquid, while others extend the definition to include substances like aerosols and gels. The term colloidal suspension refers unambiguously to the overall mixture (although a narrower sense of the word suspension is distinguished from colloids by larger particle size). A colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension). thu

AI overview

A colloid is a mixture where tiny, insoluble particles are suspended throughout another substance—like particles floating in a liquid, gas, or gel. Colloids matter because they're common in everyday materials (milk, fog, and paint are all examples) and understanding their structure helps explain how these mixtures behave and function.

AI-generated from the Wikipedia summary — may contain errors.

Research

302,531 papers

Perspectives on Multiscale Colloid-Based Materials for Biomedical Applications.ReviewLangmuir : the ACS journal of surfaces and colloids · 2023Li W, Huberman-Shlaes J, Tian BDOI: 10.1021/acs.langmuir.3c01274
Colloid and crystalloid fluid resuscitation.ReviewAcute care · 1983Falk JL, Rackow EC, Weil MH
Colloid volume expanders. Problems, pitfalls and possibilities.ReviewDrugs · 1998Roberts JS, Bratton SLDOI: 10.2165/00003495-199855050-00002
The crystalloid-colloid debate: Consequences of resuscitation fluid selection in veterinary critical care.ReviewJournal of veterinary emergency and critical care (San Antonio, Tex. : 2001) · 2015Cazzolli D, Prittie JDOI: 10.1111/vec.12281
Colloid-facilitated mobilization of cadmium: Comparison of spring freeze-thaw event and autumn freeze-thaw event.The Science of the total environment · 2022Hu NW, Yu HW, Wang QR et al.DOI: 10.1016/j.scitotenv.2022.158467
A colloidoscope of colloid-based porous materials and their uses.ReviewChemical Society reviews · 2016Phillips KR, England GT, Sunny S et al.DOI: 10.1039/c5cs00533g
Colloid-like solution behavior of computationally designed coiled coil bundlemers.Journal of colloid and interface science · 2022Sinha NJ, Guo R, Misra R et al.DOI: 10.1016/j.jcis.2021.09.184
Insights into modelling hydro-chemical interactions in colloid-brine-mineral systems.Journal of contaminant hydrology · 2025Kermani HM, Bonto M, Nick HMDOI: 10.1016/j.jconhyd.2025.104691

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Wikidata facts

Image: SEM Image of Colloidal Particles.jpg

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Commons category: Colloids

Sources (6)

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~24 min read

Article

18 sections

Contents

Definition
Classification
Hydrocolloids
Components
Compared with solution
Interaction between particles
Sedimentation velocity
Preparation
Stabilization
Destabilization
Monitoring stability
Accelerating methods for shelf life prediction
As a model system for atoms
Crystals
In biology
In the environment
Intravenous therapy
References

Some colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids may be opaque or have a slight color.