NDLI: Effects of Oil Phase on the Inversion of Pickering Emulsions Stabilized by Palmitic Acid Decorated Silica Nanoparticles

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Effects of Oil Phase on the Inversion of Pickering Emulsions Stabilized by Palmitic Acid Decorated Silica Nanoparticles

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Andrés González-González Natalia Sánchez-Arribas Eva Santini José Luis Rodríguez-Villafuerte Carlo Carbone Francesca Ravera Francisco Ortega Libero Liggieri Ramón G. Rubio Eduardo Guzmán
Abstract	Pickering emulsions stabilized by the interaction of palmitic acid (PA) and silica nanoparticles (SiNPs) at the water/oil interface have been studied using different alkane oil phases. The interaction of palmitic acid and SiNPs has a strong synergistic character in relation to the emulsion stabilization, leading to an enhanced emulsion stability in relation to that stabilized only by the fatty acid. This results from the formation of fatty acid-nanoparticle complexes driven by hydrogen bond interactions, which favor particle attachment at the fluid interface, creating a rigid armor that minimizes droplet coalescence. The comparison of emulsions obtained using different alkanes as the oil phase has shown that the hydrophobic mismatch between the length of the alkane chain and the C16 hydrophobic chain of PA determines the nature of the emulsions, with the solubility of the fatty acid in the oil phase being a very important driving force governing the appearance of phase inversion.
Related Links	https://www.mdpi.com/2504-5377/6/2/27
e-ISSN	25045377
DOI	10.3390/colloids6020027
Journal	Colloids and Interfaces
Issue Number	27
Volume Number	6
Language	English
Publisher	MDPI AG
Publisher Place	Switzerland
Access Restriction	Open
Subject Keyword	Chemistry Emulsions Fatty Acid Hydrophobic Mismatch Phase Inversion Pickering Silica Nanoparticles
Content Type	Text
Resource Type	Article

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