Charles University, Faculty of Pharmacy in Hradci Králové Department of Pharmaceutical Technology Name: Martina Kišková Title of diploma thesis: Adhesive properties of matrix tablets Supervisor: PharmDr. Eva Šnejdrová, Ph.D. The diploma thesis deals with the evaluation of rheological and adhesive properties of the mucin, aqueous dispersions of polymeric carriers and matrix tablets based on chitosan and sodium alginate or iota-carrageenan loaded with the salicylic acid using absolute rotational rheometer. The theoretical part deals with the characterization and classification of matrix tablets, polymeric carriers (sodium alginate, chitosan and carrageenan) and with the principles of evaluation of rotational, adhesive and oscillational tests performed in the experimental part. The mucin from porcine gastric used as a model substrate for adhesion tests behaves as a viscoelastic solid and its adhesive strength decreases with increasing hydration. Significantly higher adhesive strength was found for chitosan at pH 1.2 and sodium alginate at pH 6.8 compared to the adhesive strength of iota-carrageenan. In terms of viscoelastic properties, chitosan and sodium alginate are viscoelastic fluids, but iota-carrageenan is a viscoelastic solid. Iota-carrageenan forms the stiffest gel after hydration at pH 6.8...
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:445987 |
| Date | January 2021 |
| Creators | Kišková, Martina |
| Contributors | Šnejdrová, Eva, Mužíková, Jitka |
| Source Sets | Czech ETDs |
| Language | Slovak |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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