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Artículo

Environmentally friendly platforms for encapsulation of an essential oil: Fabrication, characterization and application in pests control

Sánchez Arribas, Natalia; Guzmán, Eduardo; Lucia, AlejandroIcon ; Toloza, Ariel CeferinoIcon ; Velarde, Manuel G.; Ortega, Francisco; Rubio, Ramón G.
Fecha de publicación: 10/2018
Editorial: Elsevier Science
Revista: Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN: 0927-7757
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Físico-Química, Ciencia de los Polímeros, Electroquímica

Resumen

Essential oils are highly volatile and non-water soluble natural products which have shown high efficiency against several insect pests. However, their low solubility in water is an important drawback for their practical applications. This work explores the design of new nanocarriers of eugenol based on silica nanoparticles capped with Pluronic F-127, a triblock copolymer of poly(ethylene oxide) and poly(propylene oxide). Dynamic Light Scattering (DLS) and ζ-potential measurements have shown that particles capped with Pluronic F-127 are able to disperse eugenol between the polymer chains, probably due to the presence of poly(propylene oxide) blocks. Thus, nanocarriers with a structure similar to Pluronic F-127 emulsions supported on silica nanoparticles are formed. These nanocarriers are only stabilized in aqueous medium under conditions in which the ratio between the weight fractions of Pluronic F-127 and eugenol is above 1.5, otherwise phase separation appears within the first 48 h after their preparation. Furthermore, the weight fraction of silica nanoparticles is limited to low values. This work offers new possibilities for designing new aqueous based formulations with application in pests control. The use of aqueous formulations for this purpose is interesting because it makes easy the application process, handling and storage, reducing the hazards for environmental and human health associated with the use of toxic and volatile solvent.
Palabras clave: Biopesticides , Colloidal Dispersion , Essential Oils , Nanoparticles
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/82809
URL: https://linkinghub.elsevier.com/retrieve/pii/S0927775718306319
DOI: https://doi.org/10.1016/j.colsurfa.2018.07.028
Colecciones
Articulos(UNIDEF)
Articulos de UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICOS PARA LA DEFENSA
Citación
Sánchez Arribas, Natalia; Guzmán, Eduardo; Lucia, Alejandro; Toloza, Ariel Ceferino; Velarde, Manuel G.; et al.; Environmentally friendly platforms for encapsulation of an essential oil: Fabrication, characterization and application in pests control; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 555; 10-2018; 473-481
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