Preparation and characterization of liposomes loaded with silver nanoparticles obtained by green synthesis



Título del documento: Preparation and characterization of liposomes loaded with silver nanoparticles obtained by green synthesis
Revista: Brazilian Journal of Pharmaceutical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000451249
ISSN: 1984-8250
Autores: 1
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Instituciones: 1Universidade Estadual de Ponta Grossa, Programa de Pos-Graduacao em Ciencias Farmaceuticas, Ponta Grossa, Parana. Brasil
2Universidade Estadual de Ponta Grossa, Departamento de Quimica, Ponta Grossa, Parana. Brasil
3Universidade Federal do Parana, Programa de Pos-Graduacao em Ciencias Farmaceuticas, Curitiba, Parana. Brasil
Año:
Volumen: 56
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado, descriptivo
Resumen en inglés The objective of this work was to develop and characterize liposomes loaded with silver nanoparticles (LAgNPs) to show improvement in stability characteristics. AgNPs were prepared by the green synthesis method with Aloe vera gel extract and exposure to sunlight. Liposomes were prepared by the modified reverse phase method. Particle size, polydispersity index, zeta potential, as well as the scanning electron microscopy (SEM) morphological aspects of AgNPs and LAgNPs were evaluated. In addition, was used flame atomic absorption spectroscopy to determine the amount of AgNP that was encapsulated in liposomes. The AgNPs presented as amorphous and polydisperse structures, with a mean diameter of 278.46 nm and zeta potential of -18.3 mV. LAgNPs had a mean diameter between 321 and 373 nm, the polydispersity index close to 0.2 and a zeta potential around -40 mV, which indicates greater stability to the AgNPs. The images obtained by SEM show semicircular structures for AgNPs and well-defined spherical shape for LAgNPs. The percentage of encapsulation was between 51.81 to 58.83%. These results showed that LAgNPs were obtained with adequate physicochemical characteristics as a release system
Disciplinas: Química
Palabras clave: Química farmacéutica,
Liposomas,
Nanopartículas de plata,
Aloe vera,
Química verde
Keyword: Medicinal chemistry,
Silver nanoparticles,
Aloe vera,
Green chemistry,
Liposomes
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