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UAL Research Online

An alkyl polyglucoside-mixed emulsifier as stabilizer of emulsion systems: The influence of colloidal structure on emulsions skin hydration potential

Savić, Snezana and Lukic, Milica and Jaksic, Ivana and Reichl, Stephan and Tamburic, Slobodanka and Müller-Goymann, Christel (2011) An alkyl polyglucoside-mixed emulsifier as stabilizer of emulsion systems: The influence of colloidal structure on emulsions skin hydration potential. Journal of Colloid and Interface Science, 358 (1). pp. 182-191. ISSN 0021-9797

Type of Research: Article
Creators: Savić, Snezana and Lukic, Milica and Jaksic, Ivana and Reichl, Stephan and Tamburic, Slobodanka and Müller-Goymann, Christel
Description:

To be considered as a suitable vehicle for drugs/cosmetic actives, an emulsion system should have a number of desirable properties mainly dependent on surfactant used for its stabilization. In the current study, C12–14 alkyl polyglucoside (APG)-mixed emulsifier of natural origin has been investigated in a series of binary (emulsifier concentration 10–25% (w/w)) and ternary systems with fixed emulsifier content (15% (w/w)) with or without glycerol. To elucidate the systems’ colloidal structure the following physicochemical techniques were employed: polarization and transmission electron microscopy, X-ray diffraction (WAXD and SAXD), thermal analysis (DSC and TGA), complex rheological, pH, and conductivity measurements. Additionally, the emulsion vehicles’ skin hydration potential was tested in vivo, on human skin under occlusion. In a series of binary systems with fixed emulsifier/water ratios ranging from 10/90 to 25/75 the predominance of a lamellar mesophase was found, changing its character from a liquid crystalline to a gel crystalline type. The same was observed in gel emulsions containing equal amounts of emulsifier and oil (15% (w/w)), but varying in glycerol content (0–25%). Different emulsion samples exhibited different water distribution modes in the structure, reflecting their rheological behavior and also their skin hydration capacity.

Official Website: http://dx.doi.org/10.1016/j.jcis.2011.02.049
Keywords/subjects not otherwise listed: Alkyl polyglucoside-mixed emulsifier; Lamellar mesophase; Water distribution; Rheological behavior; Skin hydration
Publisher/Broadcaster/Company: Elsevier
Your affiliations with UAL: Colleges > London College of Fashion
Date: June 2011
Digital Object Identifier: 10.1016/j.jcis.2011.02.049
Projects or Series: Research Outputs Review (April 2010 - April 2011)
Date Deposited: 26 Jan 2012 12:00
Last Modified: 09 Oct 2015 03:42
Item ID: 4619
URI: https://ualresearchonline.arts.ac.uk/id/eprint/4619

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