کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8994214 1114272 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rutin and quercetin gastro-resistant microparticles obtained by spray-drying technique
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی اکتشاف دارویی
پیش نمایش صفحه اول مقاله
Rutin and quercetin gastro-resistant microparticles obtained by spray-drying technique
چکیده انگلیسی
Quercetin and rutin gastro-resistant microparticles were prepared by spray-drying using cellulose acetate trimellitate (CAT) or cellulose acetate phthalate (CAP) as coating polymers. The influence of parameters such as the initial organic or aqueous feed solutions and polymer/drug ratio on the particle yield, behaviour and morphology was investigated. By spray-drying 2% buffer aqueous feed solutions in different polymer/drug ratio (1:1, 3:1 and 5:1) microparticles loaded with rutin were obtained. The microsystems were characterized by scanning electron microscopy (SEM), fluorescence microscopy (FM), and differential scanning calorimetry (DSC). In vitro dissolution studies, carried out using a pH change method, showed a typical biphasic drug release trend due to the pH dependent solubility of the enteric polymers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Drug Delivery Science and Technology - Volume 15, Issue 5, 2005, Pages 363-369
نویسندگان
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