Free energy approach to micellization and aggregation: Equilibrium, metastability, and kinetics

@article{Diamant2016FreeEA,
  title={Free energy approach to micellization and aggregation: Equilibrium, metastability, and kinetics},
  author={Haim Diamant and David Andelman},
  journal={arXiv: Soft Condensed Matter},
  year={2016}
}

Figures from this paper

Diffusion in micellar systems: theory and molecular modelling

Recent development of experimental methods of investigation of diffusion in micellar systems and rethinking of the available material led to an increase in the number of theoretical studies in this

Determination of Critical Micelle Concentration from the Diffusion-Driven Dilution of Micellar Aqueous Mixtures.

This work provides the foundation of diffusion-driven dilution methods, thereby representing a valuable addition to existing techniques for the determination of C*, the critical micelle concentration of surfactant concentration.

A Telescoping View of Solute Architectures in a Complex Fluid System

The metrical results add an orthogonal perspective to the energetics-based view of phase splitting in chemical separations known as the micellar model—founded upon the interpretation of small-angle neutron scattering data—with respect to a more general phase-space (gas–liquid) model of soft matter self-assembly and particle growth.

A Surfactant Concentration Model for the Systematic Determination of the Critical Micellar Concentration and the Transition Width

A surfactant concentration model is proposed that defines the critical micellar concentration directly based on the surfactants' properties and the dependence of the width of the transition region on composition, detailed studies of the properties of fluorescent probes and the aggregation of non-surfactant systems, namely amyloid peptides are revised.

Modeling the Phase Equilibria of Associating Polymers in Porous Media with Respect to Chromatographic Applications

Associating copolymers self-assemble during their passage through a liquid chromatography (LC) column, and the elution differs from that of common non-associating polymers. This computational study

Aerosol-OT Surfactant Forms Stable Reverse Micelles in Apolar Solvent in the Absence of Water.

Detailed insight is provided into the structure and stability of dry reverse micelles assembly in a nonpolar solvent using atomistic molecular dynamics simulation analyzed using the energy representation method.

In situ quantitative study of the phase transition in surfactant adsorption layers at the silica-water interface using total internal reflection Raman spectroscopy.

A phase transition of adsorbed layers from liquid crystalline as the intermediate state to the disordered liquid phase is spectroscopically and energetically analyzed and the adsorption of DDAO on silica surfaces is described quantitatively in a potential energy curve.

References

SHOWING 1-10 OF 49 REFERENCES

On the Theory of Micellization Kinetics

It is demonstrated that micelle formation at the conventional (equilibrium) critical micelle concentration (CMC, c c) can be inhibited by high activation energy barriers and significant hysteresis effects are inherent in amphiphilic systems sincemicelle formation and dissociation are activation processes.

A new pathway for the re-equilibration of micellar surfactant solutions

Two alternative pathways for re-equilibration are investigated, first allowing for micelles to break down into two aggregate fragments rather than stepwise monomer release, and secondly by allowing aggregates to merge together to form large super-micelles that exceed the size of a proper micelle.

Micelle Formation and the Hydrophobic Effect

The tendency of amphiphilic molecules to form micelles in aqueous solution is a consequence of the hydrophobic effect. The fundamental difference between micelle assembly and macroscopic phase

Theory of surfactant self-assembly : a predictive molecular thermodynamic approach

A thermodynamic treatment of surfactant self-assembly in aqueous media is developed that allows an a priori quantitative prediction of the aggregation behavior of surfactants, starting from their

Theory of self-assembly of hydrocarbon amphiphiles into micelles and bilayers

A simple theory is developed that accounts for many of the observed physical properties of micelles, both globular and rod-like, and of bilayer vesicles composed of ionic or zwitterionic amphiphiles.

Micelles, Membranes, Microemulsions, and Monolayers

Contents: Statistical Thermodynamics of Amphiphile Self-Assembly (A. Ben-Shaul & W. Gelbart).- Micellar Growth, Flexibility and Polymorphism in Dilute Solutions (G. Porte).- Micellar Liquid Crystals

Mechanism of surfactant micelle formation.

The curved dependence of chemical shift and self-diffusion coefficient on the increase in concentration suggests that the premicelles grow as the concentration increases until a definite value when the size of the premicelle reaches that of the micelle, i.e., the system is likely dominated by the monomers and micelles.