새로운 부유하는 점막점착성 약물전달체의 개발
- Author(s)
- 부살 프랍하트
- Issued Date
- 2010
- Keyword
- MASTERS THESIS
- Abstract
- 국문초록
새로운 부유하는 점막점착성 약물전달체의 개발
부살 프랍하트
지도교수 : 최후균
조선대학교 대학원 약학과
위-잔류성 제형은 위장관 상부로의 약물 운반 방법으로 주목받고 있다. 이 연구의 목표는 새로운 형태의 위장관 잔류성 과립의 개발로 위장관 상부에서 부유할 수 있으며 위장 벽에 점착하여 강한 위-잔류성을 부여하는 것이다. 이 과립은 model drug로 사용 된 친수성 약물인 아세트아미노펜의 방출을 더 오랫동안 지연시켰다. 또한 약물의 방출에서 탄산수소나트륨의 역할도 평가되었으며, 약물 loading 정도에 따른 약물의 방출 양상 역시 관찰하였다. 5 w/w%의 탄산수소나트륨은 12시간 이상 과립을 부유시키는데 충분하였으며, 약물의 방출을 지연시키는데 최적의 과립 크기는 3-4mm 정도였다. 40 w/w%의 약물을 loading한 과립에서 충분한 점착성과 지연된 방출을 보였다. 따라서 점막점착성과 부력, 두가지 특징을 모두 가진 본 과립 제제는 오랜 시간 동안 위장관 상부에 머무를 수 있을 것으로 기대된다.|ABSTRACT
Development of novel floating mucoadhesive drug delivery system
Gastro-retentive dosage form is the topic of interest to deliver the drug in the GI tract. The aim of this study was to develop novel multiunit floating drug delivery devices, in the form of granules, which could float in the upper GI tract, and as well as adhere on the stomach walls thus imparting strong gastro-retentive properties. The granules was able to retard the release the hydrophilic model drug i.e. acetaminophen for the longer period. Effect of the Sodium bicarbonate on the release of the drug was also assessed. Various proportion of the drug loading was also done to see the release characteristics. 5 w/w% of the Sodium bicarbonate was sufficient to float the granules for more than 12 h in in-vitro conditions. The optimum size of the of the granule to retard the release of the drug was within the range of 3-4 mm. 40 w/w% drug loaded granules showed sufficient adhesion as well as sustained release property. Thus combining both properties of the mucoadhesion and buoyant properties in the granules is expected to reside in the upper part of the GI tract for longer period.
Prabhat Bhusal
Advisor: Prof. Hoo-Kyun Choi, Ph.D
Department of Pharmacy,
Graduate School of Chosun University
- Alternative Title
- Development of novel floating mucoadhesive drug delivery system
- Affiliation
- College of Pharmacy
- Department
- 일반대학원 약학
- Advisor
- Hoo- Kyun Choi
- Awarded Date
- 2011-02
- Table Of Contents
- CONTENTS
ABSTRACT.................................................... 2
1.INTRODUCTION..................................................... 3
2. MATERIALS AND METHODS.......................... 11
2.1 Materials................................................................................ 11
2.2 Methods 11
2.2.1 Optimization of the ratios of Carbopol?? 971: PVP (K-30)…………… 11
2.2.2 Optimization of the size of the granules…………………………………. 12
2.2.3 Optimization of sodium bicarbonate content in the granules……… 13
2.2.3 Optimization of drug content in the granules…………………………… 13
2.2.4 Adhesion time at various Drug Loading………………………………… 14
2.2.5 Analytical method of Acetaminophen…………………………………… 14
2.2.6 Preparation of the granules by direct compression…………………… 15
2.2.7 Morphological examination of the various types of granules………… 15
3. RESULTS................................................................................. 16
3.1 Optimization of the ratios of Carbopol?? 971: PVP (K-30) ……………… 16
3.2 Optimization of the size of the granules…………………………………… 16
3.3 Optimization of sodium bicarbonate content in the granules………… 17
3.4 Optimization of drug content in the granules…………………………… 17
3.5 Adhesion time at various drug Loading…………………………………… 17
3.6 Release of drug from the granules with various preparation method…………………………………………………………………………… 18
3.7 Morphological examination ………………………………………………… 18
4. DISCUSSIONS....................................................................... 19
5.CONCLUSIONS........................................................................ 23
REFERENCES.............................................................................. 25
- Degree
- Master
- Publisher
- Chosun University, Graduate School of Chosun University
- Citation
- 부살 프랍하트. (2010). 새로운 부유하는 점막점착성 약물전달체의 개발.
- Type
- Dissertation
- URI
- https://oak.chosun.ac.kr/handle/2020.oak/8945
http://chosun.dcollection.net/common/orgView/200000241196
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