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Register a new userEffect of various formulation factors on spreadability and release properties of caffeine from carbopol gels
تأثير عوامل الصياغة المختلفة على قابلية المد و على تحرر الكافئين من هلاميات الكاربوبول
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Tishreen University ورقة بحثية
Publication date
2015
fields
Pharmacy
and research's language is
العربية
Authors
لمى محمد الهوشي( باحث )
Created by
Shamra Editor
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تهدف هذه الدراسة إلى تحضير هلاميات كاربوبول حاوية على الكافئين و إلى دراسة العوامل المؤثرة على قابليتها للمد و دراسة خواص تحرر الكافئين (مادة فعالة محبة للماء hydrophilic تم اختيارها كنموذج). استخدم اختبار ستيودنت t-test لتحليل النتائج إحصائياً عند مستوى دلالة 0.05. كانت الهلاميات شفافة عند استخدام الكافئين بتركيز 1% و بتركيز 2% (عند زيادة كمية الكحول). نقصت قابلية الهلامة للمد عند زيادة تركيز الكاربوبول و مع تغير كمية الكافئين (إلا عند 2% كاربوبول) كما تأثرت بنوع المحل المساعد. زادت كمية الكافئين المتحررة مع تناقص كمية الكاربوبول و زيادة كمية الكافئين و نقصت 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.
References used
REDDY, K.R; SANDEEP, K.; REDDY, P.S. In vitro release of ibuprofen from different topical vehicles. Asian journal of pharmaceutical sciences and research. Vol 1(2), 2011, 61-72
HINDUSTAN, A. A.; SREERAMULU, J.; CHITTA SURESH, K.; ANURADHA, CM.; KISHORE KUMAR, R.; SUSHMA, K.; HARI KRISHNA, Z.; SAVITHRI, R. Fabrication and in- vitro permeation studies of indomethacin ficus carica fruit mucilage patches. International Journal of Applied Biology and Pharmaceutical Technology. Vol I, (3), 2010, 786-792
PRAUSNITZ, M. R.; MITRAGOTRI, S.; LANGER, R. Current status and future potential of transdermal drug delivery. Nat. Rev. Drug Discov. Vol 3, 2004, 115–124
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The objective of this study was to study and to analyze caffeine release from gel and
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visual inspection, pH test, spreadability and in vitro release). The mech
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release were analyzed according to zero and first orders, and to Higuchi and Korsmeyer-
Peppas models. Results were analyzed statistically using student t-test.
The gels were transparent while emulgels were creamy, white and smooth. pH values
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