Polyelectrolyte microcapsules containing molecules of sulfated β-cyclodextrin in the structure of nanosized shell
| Autor: | S. N. Shtykov, Boris N. Khlebtsov, A. A. Neveshkin, Olga A. Inozemtseva, S. A. Portnov, Dmitry A. Gorin, A. L. Karagaichev |
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| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Cyclodextrin Bilayer Inorganic chemistry Surfaces and Interfaces engineering.material Polyelectrolyte Allylamine chemistry.chemical_compound Colloid and Surface Chemistry Adsorption Coating chemistry Chemical engineering engineering Polystyrene Physical and Theoretical Chemistry Microparticle |
| Zdroj: | Colloid Journal. 70:152-157 |
| ISSN: | 1608-3067 1061-933X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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