In vitro drug release mechanism and drug loading studies of cubic phase gels

被引:114
作者
Lara, MG
Bentley, MVLB
Collett, JH
机构
[1] Univ Sao Paulo, Fac Ciencias Farmaceut, BR-14040903 Ribeirao Preto, SP, Brazil
[2] Univ Ribeirao Preto, Curso Ciencias Farmaceut, Ribeirao Preto, SP, Brazil
[3] Univ Manchester, Sch Pharm & Pharmaceut Sci, Manchester, Lancs, England
基金
巴西圣保罗研究基金会;
关键词
glyceryl monooleate; drug delivery systems; cubic phase; swelling studies;
D O I
10.1016/j.ijpharm.2005.01.008
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Glyceryl monooleate/water cubic phase systems were investigated as drug delivery systems, using salicylic acid as a model drug. The liquid crystalline phases formed by the glyceryl monooleate (GMO)/water systems were characterized by polarizing microscopy. In vitro drug release studies were performed and the influences of initial water content, swelling and drug loading on the drug release properties were evaluated. Water uptake followed second-order swelling kinetics. In vitro release profiles showed Fickian diffusion control and were independent on the initial water content and drug loading, suggesting GMO cubic phase gels suitability for use as drug delivery system. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:241 / 250
页数:10
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