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用于局部给药的海藻酸钠/卡波姆934P-共-聚(甲基丙烯酸酯)水凝胶的研发与评价

Development and Evaluation of Sodium Alginate/Carbopol 934P-Co-Poly (Methacrylate) Hydrogels for Localized Drug Delivery.

作者信息

Mahmood Ayesha, Mahmood Asif, Ibrahim Mohamed A, Hussain Zahid, Ashraf Muhammad Umar, Salem-Bekhit Mounir M, Elbagory Ibrahim

机构信息

Faculty of Pharmacy, University of Lahore, Lahore 5400, Pakistan.

Department of Pharmacy, University of Chakwal, Chakwal 48800, Pakistan.

出版信息

Polymers (Basel). 2023 Jan 7;15(2):311. doi: 10.3390/polym15020311.

Abstract

This research was carried out to create a pH-responsive polymeric system for the targeted drug delivery of Diloxanide furoate. It relied on sodium alginate (Na-Alg) and Carbopol 934P as building blocks. Using an aqueous free radical polymerization method, SCH1-SCH12 was created with varying polymer, MAA, and MBA input ratios. Positive outcomes were seen in the swelling and release profiles at higher pH levels. Hydrogel formation, as well as component compatibility, thermal stability, and Diloxanide furoate loading, were all validated by instrumental characterization. A drug loading percentage of 83.56% was determined, with the swelling reaching 743.19%. For the formulation with MBA, the gel fraction was 94.58%. The release of diloxanide furoate increased to 91.77% at neutral pH. The formulation containing Carbopol 934P provided the highest mucoadhesion force (3993.42 dynes/cm). The created hydrogel has been shown to be biocompatible by toxicological testing of the network. Based on the findings, the created polymeric nexus proved promising for pH-dependent localized and regulated delivery of Diloxanide furoate.

摘要

本研究旨在创建一种用于呋喃妥因靶向给药的pH响应聚合物系统。它以海藻酸钠(Na-Alg)和卡波姆934P为基础材料。采用水溶液自由基聚合法,以不同的聚合物、甲基丙烯酸(MAA)和甲基丙烯酸丁酯(MBA)输入比例制备了SCH1-SCH12。在较高pH值水平下,溶胀和释放曲线呈现出积极的结果。通过仪器表征验证了水凝胶的形成、组分相容性、热稳定性以及呋喃妥因的负载情况。测定的药物负载率为83.56%,溶胀率达到743.19%。对于含MBA的制剂,凝胶分数为94.58%。在中性pH值下,呋喃妥因的释放率增加到91.77%。含卡波姆934P的制剂提供了最高的粘膜附着力(3993.42达因/厘米)。通过对该网络的毒理学测试表明,所制备的水凝胶具有生物相容性。基于这些发现,所创建的聚合物连接体被证明在pH依赖的呋喃妥因局部和调控递送方面具有前景。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7fff/9864554/56dfe59fa7a2/polymers-15-00311-g009.jpg

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