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Sistemas nanoestruturados estabilizados com álcool cetílico etoxilado e propoxilado contendo óleo de copaíba e fluconazol potencialmente ativo contra dermatomicoses

Authors: Silva, Hilris Rocha e;

Sistemas nanoestruturados estabilizados com álcool cetílico etoxilado e propoxilado contendo óleo de copaíba e fluconazol potencialmente ativo contra dermatomicoses

Abstract

Nas últimas décadas, tem ocorrido um aumento expressivo na incidência de infecções fúngicas. Por outro lado, o tratamento das micoses nem sempre é efetivo, pois os fármacos antifúngicos disponíveis apresentam espectro de atividade e perfil farmacocinético inadequados, em especial no tratamento das lesões cutâneas. Portanto, o objetivo do presente trabalho foi desenvolver e caracterizar sistemas nanoestruturados estabilizados com álcool cetílico etoxilado 20 OE e propoxilado 5 OP (PROC) contendo fluconazol (FLU), empregando ácido oléico (AO) e óleo de copaíba como fases oleosas. A caracterização química, seguida de ensaios biológicos, dos óleos de copaíba de diferentes fontes, foi determinante para a escolha do óleo a ser usado no desenvolvimento das formulações. A construção de diagramas de fases com ambos os óleos mostrou que diferentes sistemas como microemulsões (ME) e cristais líquidos (CL) podem ser formados. A caracterização físico-química (MLP, SAXS e Reologia) mostrou que na região de 40% de PROC, o aumento da quantidade de água favorece a formação de sistemas mais estruturados como CL de fase lamelar e hexagonal quando se utiliza AO e óleo de copaíba...

In the last decades, there has been an expressive increase in incidence of fungal infections. On the other hand, the treatment of mycoses is not always effective, because available antifungal drugs show inappropriate activity spectrum and pharmacokinetic profile. The aim of this work was to develop and characterize nanostructured systems stabilized by propoxyl (5OP) ethoxyl (20 OE) cethyl alcohol (PROC) containing fluconazole, using oleic acid and copaiba oil from different origins as oily phases. Chemical and biological characterization of copaiba oils from different origins was decisive for the choice of oil to be used in the development of the formulations. The construction of phase diagrams with studied copaiba oils showed that different systems such as microemulsions (ME) and liquid crystals (CL) can be formed. The characterization by polarized light microscopy, rheological behavior and SAXS confirmed the results obtained in phase diagrams, showing that in the region of 40% of PROC, the increase in the quantity of water favors the formation of more structured systems as CL of lamellar and hexagonal phase... (Complete abstract click electronic access below)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Ciências Farmacêuticas - FCFAR

Universidade Estadual Paulista (UNESP)

Country
Brazil
Keywords

Fármacos antifúngicos, Mycoses, Micoses, Antifúngicos, Antifungal drugs

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green