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X-ray investigation of the role of the mixed emulsifier in the structure formation in o/w creams

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Abstract

The aim of this research work was to clarify the role of the mixed emulsifier in the structure formation and water binding mode in the case of o/w creams prepared with different surfactants. The swelling behavior of mixed emulsifiers was examined by means of direct investigation methods such as transmission electron microscopy (TEM) and X-ray diffraction. The detailed structure image of the creams was created with the help of the latter. The influence of the structure of the hydrophilic gel phase, and the structural changes during storage were studied with rheological methods. On the basis of the results, it can be stated that the investigated creams had different structures from those mentioned in the literature: surfactant did not create a mixed bilayer with the structure to furnish fatty amphiphile; instead, micelles were formed. These results correlated well with the results of the rheological tests.

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Acknowledgement

The work was supported by the Hungarian Science Fund (OTKA) under grant number T046908.

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Authors and Affiliations

  1. Department of Pharmaceutical Technology, University of Szeged, Szeged, Eötvös u. 6., 6720, Hungary

    Magdolna Kónya & István Erõs

  2. Department of Colloid Chemistry, University of Szeged, Szeged, Aradi vértanúk tere 1., 6720, Hungary

    Imre Dékány

  3. Rátz László u. 13. II/8, Budapest, 1116, Hungary

    Magdolna Kónya

Authors
  1. Magdolna Kónya
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  2. Imre Dékány
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  3. István Erõs
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Correspondence to Magdolna Kónya.

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Kónya, M., Dékány, I. & Erõs, I. X-ray investigation of the role of the mixed emulsifier in the structure formation in o/w creams. Colloid Polym Sci 285, 657–663 (2007). https://doi.org/10.1007/s00396-006-1608-2

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  • DOI: https://doi.org/10.1007/s00396-006-1608-2

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