Polyelectrolyte microcapsules containing molecules of sulfated β-cyclodextrin in the structure of nanosized shell

D. A. Gorin, S. A. Portnov, O. A. Inozemtseva, A. L. Karagaichev, A. A. Neveshkin, B. N. Khlebtsov, S. N. Shtykov

Research output: Contribution to journalArticlepeer-review

Abstract

Alternate adsorption of the molecules of poly(allylamine hydrochloride) (PAA) and sulfated β-cyclodextrin (sulfo-β-CD) is studied by piezoelectric microweighing upon the formation of coatings of nanosized thicknesses by the polyionic assembly procedure. The thickness of planar coatings on the surface of single-crystalline silicon is determined by ellipsometry. The layer-by-layer character of the formation of planar nanosized coating is revealed and assumptions about the structure of the PAA and sulfo-β-CD bilayers are stated. A comparison of the spherical microparticles of polystyrene, as well as manganese and calcium carbonates, demonstrated that it is feasible to use microparticles of calcium carbonate as a template for producing microcapsules. Microcapsules with shells containing five (PAA/sulfo-β-CD) layers are prepared and studied by confocal fluorescent microscopy.

Original languageEnglish
Pages (from-to)152-157
Number of pages6
JournalColloid Journal of the Russian Academy of Sciences: Kolloidnyi Zhurnal
Volume70
Issue number2
DOIs
Publication statusPublished - Apr 2008
Externally publishedYes

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

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