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J Pharm Sci. 2002 Aug;91(8):1810-6.

Solubilization of hydrophobic drugs in octanoyl-6-O-ascorbic acid micellar dispersions.

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  • 1Departamento de Farmacia, Fac. de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Argentina.

Abstract

Alkanoyl-6-O-ascorbic acid esters are easily obtained from vitamin C, and produce self-assembled aggregates in water solutions, with an inner hydrophobic pool surrounded by an external hydrophilic shell. Compared to ascorbic acid, their solubility in oils and fats is greatly enhanced, while the peculiar antioxidant activity is retained in the polar head groups of such surfactants. In virtue of their amphiphilic nature, ascorbic acid-based supramolecular systems can dissolve relevant amounts of hydrophobic, poorly water soluble chemicals such as drugs, vitamins, and so on, and at the same time they provide a suitable shield against oxidative deterioration of valuable materials. In this article we report our study on the self-assembling properties of octanoyl-6-O-ascorbic acid in water, and on the solubilization of some lipophilic molecules in its dispersions.

Copyright 2002 Wiley-Liss, Inc. and the American Pharmaceutical Association

PMID:
12115808
[PubMed - indexed for MEDLINE]
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