تأثير عوامل الصياغة المختلفة على قابلية المد وعلى تحرر الكافئين من هلاميات الكاربوبول
Abstract
تهدف هذه الدراسة إلى تحضير هلاميات كاربوبول حاوية على الكافئين وإلى دراسة العوامل المؤثرة على قابليتها للمد ودراسة خواص تحرر الكافئين (مادة فعالة محبة للماء hydrophilic تم اختيارها كنموذج). استخدم اختبار ستيودنتt-test لتحليل النتائج إحصائياً عند مستوى دلالة 0.05. كانت الهلاميات شفافة عند استخدام الكافئين بتركيز 1% وبتركيز 2% (عند زيادة كمية الكحول). نقصت قابلية الهلامة للمد عند زيادة تركيز الكاربوبول ومع تغير كمية الكافئين (إلا عند 2% كاربوبول) كما تأثرت بنوع المحل المساعد. زادت كمية الكافئين المتحررة مع تناقص كمية الكاربوبول وزيادة كمية الكافئين ونقصت الكمية الكلية المتحررة بوجود الكحول. كان التحرر من نموذج Higuchi أي أن الانتشار هو الآلية الأساسية في تحرر الكافئين من هذه الهلاميات. The objective of this study was to prepare acceptable carbopol gels and to evaluate the factors influencing the spreadability and release properties of a model hydrophilic compound (caffeine). Results were analyzed statistically using student t-test. The gels were transparent at 1 and at 2% caffeine (with alcohol). Spreadability was decreased when carbopol was increased and when caffeine quantity was changed (except at 2% carbopol). Spreadability was affected statistically with change of cosolvent. Released caffeine quantity (%) was increased with decreasing of carbopol quantity and increasing of caffeine quantity introduced in the formula. Total caffeine quantity (%) was decreased with alcohol presence. Caffeine release followed Higuchi pattern, e.g. diffusion was the principal mechanism of caffeine release from these formulas.Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Health Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Health Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Health Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.