کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
231444 1427431 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Processing triacetyl-β-cyclodextrin in the liquid phase using supercritical CO2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Processing triacetyl-β-cyclodextrin in the liquid phase using supercritical CO2
چکیده انگلیسی

TA-β-CD has been proposed as an effective sustained release carrier for highly water soluble drugs with short biological half-lives. In this work, the possibility of preparing drug – triacetyl-β-cyclodextrin (TA-β-CD) complexes in the liquid phase by exploring its solid–liquid–gas equilibrium (S–L–G) under supercritical CO2 atmosphere was evaluated. The S–L–G equilibrium line for the binary system TA-β-CD + CO2 was determined by a visual method for pressures up to 25.3 MPa. At the studied conditions, a homogeneous and translucent liquid phase emerge at 307 K when exposed to CO2 pressurized at 16 MPa and this temperature further increases with increasing pressure, up to 318 K at 25.3 MPa. The S–L–G equilibrium behaviour observed is typical of this kind of asymmetric systems, it is totally CO2 density-dependent and opens the possibility of further processing TA-β-CD in the liquid phase. In order to investigate the possibility of preparing a drug–TA-β-CD complex in the liquid phase of TA-β-CD, a preliminary experiment was performed at 25 MPa and 308 K using flufenamic acid (FA) as the model active principle.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 54, Issue 3, September 2010, Pages 357–361
نویسندگان
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