Three eras of micellization

Details Three eras of micellization Three eras of micellization

2002-11-04

arxiv.org/abs/cond-mat/0211056v1

Phys. Rev. E 66, 061406 (2002)

Physics

Condensed Matter

Materials Science

21 pages, 6 figures, to appear in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.66.061406

Micellization is the precipitation of lipids from aqueous solution into aggregates with a broad distribution of aggregation number. Three eras of micellization are characterized in a simple kinetic model of Becker-D\"oring type. The model asigns the same constant energy to the $(k-1)$ monomer-monomer bonds in a linear chain of $k$ particles. The number of monomers decreases sharply and many clusters of small size are produced during the first era. During the second era, nucleii are increasing steadily in size until their distribution becomes a self-similar solution of the diffusion equation. Lastly, when the average size of the nucleii becomes comparable to its equilibrium value, a simple mean-field Fokker-Planck equation describes the final era until the equilibrium distribution is reached.

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