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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...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
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...
Induced Electric Dipoles01:28

Induced Electric Dipoles

A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity.
Electromagnetic Waves01:30

Electromagnetic Waves

James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws of electricity and...

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Related Experiment Video

Updated: May 31, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
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Published on: May 9, 2021

Electrostatic oscillations along cylindrical micelles.

Afshin Moradi1

  • 1Department of Nano Science, Kermanshah University of Technology, Iran. a.moradi@kut.ac.ir

The Journal of Membrane Biology
|July 9, 2011
PubMed
Summary

This study analyzes ionic electrostatic oscillations in charged cylindrical micelles using fluid theory and the Poisson equation. A general dispersion relation for electrostatic excitations was derived, advancing our understanding of micelle behavior.

Area of Science:

  • Physics
  • Physical Chemistry
  • Colloid Science

Background:

  • Charged cylindrical micelles are crucial in various chemical and biological systems.
  • Understanding their electrostatic behavior is key to controlling their properties.

Purpose of the Study:

  • To theoretically investigate ionic electrostatic oscillations in charged cylindrical micelles.
  • To derive a general dispersion relation for electrostatic excitations.

Main Methods:

  • Utilizing fluid theory for surface counterions.
  • Applying the Poisson equation for electrostatic potential.
  • Developing a theoretical framework for oscillation analysis.

Main Results:

  • Derived a general expression for the dispersion relation.

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

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  • Characterized the behavior of electrostatic excitations.
  • Provided a theoretical model for micelle oscillations.
  • Conclusions:

    • The study provides a fundamental theoretical framework for understanding electrostatic oscillations in charged cylindrical micelles.
    • The derived dispersion relation is a key tool for predicting micelle behavior.