Pattern formation on the surface of cationic-anionic cylindrical aggregates.

Y S Velichko; M Olvera de la Cruz

doi:10.1103/physreve.72.041920

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Pattern formation on the surface of cationic-anionic cylindrical aggregates.

Y S Velichko·M Olvera de la Cruz

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Abstract

Charged pattern formation on the surfaces of self-assembled cylindrical micelles formed from oppositely charged heterogeneous molecules such as cationic and anionic peptide amphiphiles is investigated. The net incompatibility chi among different components results in the formation of segregated domains, whose growth is inhibited by electrostatics. The transition to striped phases proceeds through an intermediate structure governed by fluctuations, followed by states with various lamellar orientations, which depend on cylinder radius Rc and chi. We analyze the specific heat, susceptibility S(q*), domain size Lambda = 2pi/q*, and morphology as a function of Rc and chi.

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Anions Cations Colloids Computer Simulation Crystallization Membrane Lipids Micelles Models, Chemical Models, Molecular Phase Transition Static Electricity Journal Article Research Support, N.I.H., Extramural Research Support, U.S. Gov't, Non-P.H.S.

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Y S Velichko, M Olvera de la Cruz. 2005-10-19. Pattern formation on the surface of cationic-anionic cylindrical aggregates.. https://doi.org/10.1103/physreve.72.041920

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