Detalhes bibliográficos
| Ano de defesa: |
2009 |
| Autor(a) principal: |
Rodovalho, Luciana Ferreira Fonseca
 |
| Orientador(a): |
Lima, Eliana Martins
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| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
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| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal de Goiás
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| Programa de Pós-Graduação: |
Programa de Pós-graduação em Ciências Farmacêuticas (FF)
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| Departamento: |
Faculdade Farmácia - FF (RG)
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| País: |
Brasil
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| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://repositorio.bc.ufg.br/tede/handle/tde/2886
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Resumo: |
Non-ionic surfactant vesicles (niosomes) and cyclodextrins (CDs) are able to modify physical-chemical properties of incorporated drugs. One of the major challenges for the topical administration of retinoids, such as isotretinoin (31cisRA), is the stability of these compounds in formulations capable of reducing their toxicity during the treatment. The purpose of this research was to develop vesicular carries capable to transport and deliver isotretinoin for topical application during acne treatment. The niosomes were obtained from Bryj®30:Cholesterol:DCP (50:25:10) by the film hydration method. The HP CDs:isotretinoin complex was obtained by agitation for 8 days in phosphate buffer pH 7.4. The vesicles were characterized and it was possible to encounter a large amount of morphological varieties, flexible structures and fluid membrane, after inclusion of free isotretinoin. The fluidness of the membrane that contains isotretinoin allowed leaking of the drug when in concentration above 5 mM. The HP CDs:Isotretinoin (20:1) increased the vesicle size considerably, also allowing drug leaking. The systems developed presented themselves as potential carries of isotretinoin for topical application and played the roll of drug delivery system, |
