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Related Concept Videos

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...
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...
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
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...
Detergent Purification of Membrane Proteins01:18

Detergent Purification of Membrane Proteins

Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
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)...

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Related Experiment Video

Updated: May 15, 2026

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
06:16

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

Published on: February 11, 2018

Interaction between zwitterionic surface activity ionic liquid and anionic surfactant: Na(+)-driven wormlike

Xiaoqing Wang1, Ruitao Wang, Yan Zheng

  • 1Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, PR China.

The Journal of Physical Chemistry. B
|January 23, 2013
PubMed
Summary

This study explores a novel surfactant mixture, [N-C(12), N'-CO(2)-Im]/SDS, demonstrating superior surface activity and synergistic effects. Optimal conditions were found to form robust wormlike micelles with potential applications in nanomaterials and enhanced oil recovery.

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Last Updated: May 15, 2026

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
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Facile Synthesis of Worm-like Micelles by Visible Light Mediated Dispersion Polymerization Using Photoredox Catalyst

Published on: June 8, 2016

Area of Science:

  • Colloid and Surface Science
  • Materials Science
  • Physical Chemistry

Background:

  • Ionic liquids and surfactants are crucial in various industrial applications.
  • Understanding mixed surfactant systems is key to optimizing their properties.
  • Zwitterionic surfactants offer unique characteristics in solution behavior.

Purpose of the Study:

  • To investigate the physicochemical properties of mixed N-alkyl-N'-carboxymethyl imidazolium inner salts/sodium dodecyl sulfate ([N-C(12), N '-CO(2)-Im]/SDS) systems.
  • To evaluate the synergistic interactions and surface activity of the mixed system compared to individual components and other zwitterionic mixtures.
  • To explore the formation and characterization of wormlike micelles (WMs) in the [N-C(12), N '-CO(2)-Im]/SDS system.

Main Methods:

  • Surface tension measurements to determine critical micelle concentration (cmc) and surface activity.
  • Steady-state fluorescence spectroscopy to probe micellar properties.
  • Steady and dynamic rheology to characterize wormlike micelle structure and dynamics.

Main Results:

  • The mixed [N-C(12), N '-CO(2)-Im]/SDS system exhibited significantly lower cmc and enhanced surface activity compared to individual surfactants.
  • Stronger synergistic interactions (more negative β values) were observed in the mixed system than in zwitterionic betaine/SDS mixtures.
  • Addition of NaCl induced the formation of wormlike micelles, with optimal conditions identified for the strongest and longest WMs (C(T) = 60 mM, R(1) = 0.45, C(NaCl) = 0.10 M).

Conclusions:

  • The [N-C(12), N '-CO(2)-Im]/SDS mixture shows remarkable synergistic behavior and effective wormlike micelle formation.
  • The resulting wormlike micelles possess a stronger network structure compared to those from traditional zwitterionic/anionic surfactant mixtures.
  • This system holds significant potential for applications in nanomaterials synthesis, personal care products, and enhanced oil recovery.