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

The Colloidal State

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 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...

Coagulation

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...

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...

You might also read

Related Articles

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

Sort by

Same author

Pulsed-Laser Ablation for the Synthesis of High-Entropy Alloy Aerogels Toward H<sub>2</sub>O<sub>2</sub> Production and Water Decolorization.

Angewandte Chemie (International ed. in English)·2026

Same author

High-Entropy Alloy Aerogels with High-Density Solid-Solid Heterointerfaces for Alkaline Hydrogen Evolution.

Journal of the American Chemical Society·2026

Same author

Mortar Synthesis: A Mechanochemical Approach to Metal Aerogel Production.

Chemistry of materials : a publication of the American Chemical Society·2025

Same author

Expedient Access to Gold/Quantum-Dot Nanohybrids Mediated by Poly(ethylene Glycol) Ligands of Distinct Macromolecular Architecture.

Macromolecular rapid communications·2025

Same author

Tuning the Adsorption of H and OH on Ruthenium Aerogel to Boost the Alkaline Hydrogen Evolution.

Angewandte Chemie (International ed. in English)·2025

Same author

Tribenzoylarsine - A Benign Arsenic Precursor for InAs Nanocrystals.

Small (Weinheim an der Bergstrasse, Germany)·2025

Search research articles

Related Experiment Video

Updated: May 16, 2026

A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals

A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals

Published on: May 10, 2018

Colloidal semiconductor nanocrystals: the aqueous approach.

Vladimir Lesnyak¹, Nikolai Gaponik, Alexander Eychmüller

¹Physical Chemistry, TU Dresden, Bergstr. 66b, 01062 Dresden, Germany.

Chemical Society Reviews

|November 21, 2012

Summary

This summary is machine-generated.

Aqueous synthesis of semiconductor quantum dots offers a versatile, eco-friendly, and cost-effective method for creating advanced nanomaterials. This approach yields materials with excellent photoluminescence, stability, and biological compatibility for diverse applications.

More Related Videos

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

Related Experiment Videos

Last Updated: May 16, 2026

A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals

A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals

Published on: May 10, 2018

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

Published on: August 10, 2017

Area of Science:

Materials Science
Nanotechnology
Chemistry

Background:

Semiconductor quantum dots (QDs) are crucial nanomaterials with tunable optical and electronic properties.
Traditional synthesis methods often involve harsh chemicals and organic solvents.
Developing greener and more accessible synthesis routes is a significant research goal.

Purpose of the Study:

To review the achievements and challenges in the aqueous synthesis of semiconductor quantum dots.
To highlight the advantages and potential applications of this synthesis approach.
To provide an overview of recent developments in the field.

Main Methods:

Literature review of studies on aqueous synthesis of colloidal semiconductor quantum dots.
Analysis of properties and applications of QDs synthesized via aqueous routes.
Discussion of synthesis challenges and future directions.

Main Results:

Aqueous synthesis enables the production of QDs with superior photoluminescence and long-term stability.
Synthesized QDs exhibit excellent compatibility with biological media.
The aqueous approach facilitates self-assembly into larger structures and surface functionalization.
Advantages include versatility, scalability, environmental friendliness, and cost-effectiveness.

Conclusions:

Aqueous synthesis is a highly promising strategy for producing high-performance semiconductor quantum dots.
This method offers significant advantages over traditional approaches, paving the way for broader applications.
Further research can optimize aqueous synthesis for even greater control and novel functionalities.