SciELO - Scientific Electronic Library Online

 
vol.45 número3Proyecto Grannacional ALBASALUD para Centro Regulador de Medicamentos Esenciales de los países del ALBA-TCPValidación de métodos analíticos para el control de calidad de naproxeno supositorios índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • No hay articulos similaresSimilares en SciELO

Compartir


Revista Cubana de Farmacia

versión impresa ISSN 0034-7515

Resumen

PINILLOS MADRID, Juan Fernando  y  GALLARDO CABRERA, Cecilia. Encapsulation of a sunscreen (avobenzone) in liposomes. Rev Cubana Farm [online]. 2011, vol.45, n.3, pp.331-340. ISSN 0034-7515.

This study was aimed at confirming the optimization of Avobenzone encapsulation in liposomes, and at evaluating whether this is a physical barrier to protect AVO from photodegradation in presence of octylmetoxycinnamate or not. An experimental design served to optimize the processes of encapsulation. The results showed a significant increase in the encapsulation efficiency since optimal relationship between the encapsulating agent and the agent to be encapsulated, as well as adequate interactions among the studied factors were found. The values of encapsulation efficiency were roughly 90.00 % and the particle size obtained was 9.156 mm. The Avobenzone photostability in presence of UVB filter octylmetoxycinnamate improved when being encapsulated in liposomes, with a degradation percentage of 22.07 % against 32.96 % of the non-encapsulated, and the colloidal stabilization of liposomal dispersion improved with the use of 1.00 % Carbopol 940. It can be concluded that the encapsulation of avobenzone in liposomes using isolecitine is highly efficient, and it is confirmed that Avobenzone photodegradation decreases when it is encapsulated, regardless of octylmetoxycinnamate.

Palabras clave : liposomes; experimental designs; colloidal stability; encapsulation efficiency; Avobenzone; sunscreen.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons