期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 345, 期 1-3, 页码 51-57出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2009.04.022
关键词
Drug solubilization; Drug carrier; Surfactant; Benzalkonium chloride
资金
- The Academy of Sciences for the Developing World (TWAS) [00-360 RG/CHE/LA]
- Pole Universitaire Europeen de Montpellier
Taking into account the advantages of surfactant micelles as drugs carriers, the solubilization of two model drugs, sulfamethoxazole and metronidazole, has been studied in aqueous solutions of benzalkonium chloride, which is a cationic surfactant safe for human use. The combination of conductivity and H-1 NMR experiments led to the conclusion that the less soluble drug, sulfamethoxazole, was solubilized in the interior of the surfactant micelles. In the case of metronidazole the H-1 NMR results showed that it interacted to some extent with the polar headgroup of the surfactant. However, this interaction was weak since no change in the micellization phenomenon was observed, at least under the experimental conditions used. (C) 2009 Elsevier B.V. All rights reserved.
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