Levan in the developing of new colon-specific polymer material: evaluation of the permeability, moisture and thermal analyses in free films of Eudragit® FS 30 D/Levana no desenvolvimento de novo material polimerico colon-especifico: avaliacao da permeabilidade, intumescimento e analises termicas de filmes isolados de Eudragit® FS 30 D

Levan was used as agent in the synthesis of new colon-specific polymeric matrix together with Eudragit® FS 30 D. Eudragit® FS 30 D films incorporated with levan were made by casting process and characterized to: water vapour transmission, sweeling index, differential scanning calorimetry and thermog...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Acta scientiarum. Health sciences 2012-07, Vol.34 (2), p.185-191
Hauptverfasser: dos Santos, Leandro Freire, Pineda, Edgardo Alfonso Gomez, de Melo, Fernando Cesar Bazani Cabral, Celligoi, Maria Antonia Pedrine Colabone, Cavalcanti, Osvaldo Albuquerque
Format: Artikel
Sprache:eng ; spa
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Levan was used as agent in the synthesis of new colon-specific polymeric matrix together with Eudragit® FS 30 D. Eudragit® FS 30 D films incorporated with levan were made by casting process and characterized to: water vapour transmission, sweeling index, differential scanning calorimetry and thermogravimetric. The levan increased the films permeability (p < 0.001) however did not influenced in the sweeling index of the formulations (p > 0.05). The thermal analyses of the films indicated a glass transition temperature approximate at 47°C and thermal decomposition at 400°C. The results indicated that there is potential for using such site-specificity blend as pharmaceutical coating material. Keywords: coating material, colon-specific release, physicochemical characterization, thermal analysis. Levana foi utilizada na sintese de novo material polimerico colon-especifico conjuntamente com o Eudragit® FS 30 D. Filmes de Eudragit® FS 30 D aditivados de levana foram feitos pelo metodo de "casting process" e caracterizados quanto a transmissao de vapor de agua, indice de intumescimento, calorimetria diferencial de varredura e termogravimetria. A levana aumentou a permeabilidade dos filmes (p < 0,001), entretanto nao influenciou no indice de intumescimento das formulacoes (p > 0,05). As analises termicas dos filmes indicaram uma temperatura de transicao vitrea aproximada de 47°C e temperatura de decomposicao de 400°C. Os resultados indicaram que ha potencial de uso desta nova blenda sitio-especifica como material de revestimento farmaceutico. Palavras-chave: material de revestimento, liberacao colon-especifica, caracterizacao fisico-quimica, analises termicas.
ISSN:1679-9291
1807-8648
DOI:10.4025/actascihealthsci.v34i2.11729