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

Surface Active Agents01:27

Surface Active Agents

Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...
Micelles01:30

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
Solubility03:00

Solubility

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, atoms, and/or ions)...
Colloids03:22

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...
The Colloidal State01:29

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 precipitates01:09

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...

You might also read

Related Articles

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

Sort by
Same author

Nano-pulsed discharge plasma-induced abiotic oligopeptide formation from diketopiperazine.

Die Naturwissenschaften·2022
Same author

Implication of Fluorine Atom on Electronic Properties, Ordering Structures, and Photovoltaic Performance in Naphthobisthiadiazole-Based Semiconducting Polymers.

Journal of the American Chemical Society·2016
Same author

Cell cycle of primitive hematopoietic progenitors decelerated in senescent mice is reactively accelerated after 2-Gy whole-body irradiation.

Experimental biology and medicine (Maywood, N.J.)·2016
Same author

High-efficiency polymer solar cells with small photon energy loss.

Nature communications·2015
Same author

Lipopolysaccharide reciprocally alters the stromal cell-regulated positive and negative balance between myelopoiesis and B lymphopoiesis in C57BL/6 mice.

Biological & pharmaceutical bulletin·2014
Same author

Experimentally induced, synergistic late effects of a single dose of radiation and aging: significance in LKS fraction as compared with mature blood cells.

Journal of applied toxicology : JAT·2014

Related Experiment Video

Updated: May 30, 2026

Extraction and Characterization of Surfactants from Atmospheric Aerosols
09:34

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Published on: April 21, 2017

Aggregation behavior of nonionic surfactants in ionic liquid mixtures.

Tohru Inoue1, Kazuaki Kawashima, Yuji Miyagawa

  • 1Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan. inouetr@fukuoka-u.ac.jp

Journal of Colloid and Interface Science
|July 20, 2011
PubMed
Summary

Polyoxyethylene (POE) surfactants aggregate in ionic liquid mixtures. Mixing ionic liquids controls solvent quality, enabling tunable self-assembly of amphiphilic molecules like surfactants.

More Related Videos

Studying Surfactant Effects on Hydrate Crystallization at Oil-Water Interfaces Using a Low-Cost Integrated Modular Peltier Device
06:31

Studying Surfactant Effects on Hydrate Crystallization at Oil-Water Interfaces Using a Low-Cost Integrated Modular Peltier Device

Published on: March 18, 2020

Enhanced Oil Recovery using a Combination of Biosurfactants
13:19

Enhanced Oil Recovery using a Combination of Biosurfactants

Published on: June 3, 2022

Related Experiment Videos

Last Updated: May 30, 2026

Extraction and Characterization of Surfactants from Atmospheric Aerosols
09:34

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Published on: April 21, 2017

Studying Surfactant Effects on Hydrate Crystallization at Oil-Water Interfaces Using a Low-Cost Integrated Modular Peltier Device
06:31

Studying Surfactant Effects on Hydrate Crystallization at Oil-Water Interfaces Using a Low-Cost Integrated Modular Peltier Device

Published on: March 18, 2020

Enhanced Oil Recovery using a Combination of Biosurfactants
13:19

Enhanced Oil Recovery using a Combination of Biosurfactants

Published on: June 3, 2022

Area of Science:

  • Physical Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Nonionic surfactants, such as polyoxyethylene (POE) types, exhibit complex aggregation behaviors influenced by their surrounding solvent environment.
  • Ionic liquids (ILs) offer tunable properties, making them promising media for controlling self-assembly processes.
  • Understanding surfactant-IL interactions is crucial for designing novel materials and applications.

Purpose of the Study:

  • To investigate the aggregation behavior of POE-type nonionic surfactants in binary ionic liquid mixtures.
  • To explore the influence of mixing two specific ionic liquids, 1-ethyl-3-methylimidazolium tetrafluoroborate (emimBF(4)) and 1-hexyl-3-methylimidazolium tetrafluoroborate (hmimBF(4)), on surfactant self-assembly.
  • To elucidate the role of solvent properties and specific interactions in dictating micellization.

Main Methods:

  • Utilized dynamic light-scattering (DLS) measurements to determine micellar size and aggregation.
  • (1)H Nuclear Magnetic Resonance ((1)H NMR) chemical shift analysis to probe molecular interactions between surfactants and ionic liquids.
  • Systematically varied the composition of the emimBF(4)/hmimBF(4) ionic liquid mixtures.

Main Results:

  • Surfactants showed no aggregation in pure hmimBF(4) (solvophilic) but were immiscible in pure emimBF(4) (solvophobic).
  • Micellization was observed in emimBF(4)/hmimBF(4) mixtures, with critical micelle concentration (cmc) decreasing as emimBF(4) mole fraction increased.
  • Increased emimBF(4) content led to larger mean hydrodynamic diameters and higher micellar aggregation numbers.
  • (1)H NMR indicated preferential interaction of hmimBF(4) hexyl groups with surfactant hydrocarbon chains.

Conclusions:

  • Mixing two ionic liquids provides a method to tune solvent quality and control surfactant self-aggregation.
  • The study demonstrates the ability to induce and control micellization by adjusting the composition of ionic liquid mixtures.
  • This approach offers a pathway for designing tailored self-assembled structures for various applications.