Development and characterization of ethylcellulose based microsphere for sustained release of nifedipine

作     者：Patitapabana Parida Subash Chandra Mishra Subhashree Sahoo Ajit Behera Bibhukalyan Prasad Nayak 

作者机构：Department of Biotechnology and Medical Engineering NIT Rourkela Odisha 769008 India Department of Metallurgical and Materials Engineering NIT Rourkela Odisha 769008 India Department of Pharmaceutics Kanakmanjari Institute of Pharmaceutical Sciences Rourkela Odisha 769015 India Department of Metallurgical and Materials Engineering IIT Kharagpur West Bengal 721302 India 

出 版 物：《Journal of Pharmaceutical Analysis》 (药物分析学报（英文版）)

年 卷 期：2016年第6卷第5期

页      面：341-344页

核心收录：

学科分类：0710[理学-生物学] 100702[医学-药剂学] 1007[医学-药学(可授医学、理学学位)] 1006[医学-中西医结合] 1002[医学-临床医学] 0817[工学-化学工程与技术] 0703[理学-化学] 0702[理学-物理学] 100602[医学-中西医结合临床] 10[医学] 

主　　题：Nifedipine Microsphere Solvent evaporation Sustained release 

摘      要：This article introduced the work of ethylcellulose based polymeric microsphere loaded with nifedipine for reduction in frequency of administration with low solubility in aqueous medium and high rate of absorption in the stomach. The non-aqueous polymeric suspension was put dropwise into an aqueous medium containing polyvinyl alcohol as a surfactant for the synthesis of microsphere by solvent evaporation. The microspheres were characterized by different techniques, namely, XRD, SEM, and NMR. The formation of microspheres was confirmed by SEM. XRD analysis revealed the semi-crystallinity nature of microspheres. The NMR study indicated the presence of hetero-aromatic nucleus in the microsphere.