Abstract
A loading of ramipril in SBA-15 (Santa Barbara Amorphous) mesoporous material was studied. (SBA-15)-ramipril composite material was characterized by chemical analysis, infrared spectroscopy, powder X-ray diffraction, low temperature N2 adsorption–desorption at 77 K characterization techniques. Ramipril drug release processes from SBA-15 host to simulated body fluid (SBF), simulated gastric juice (SGJ), simulated intestinal fluid (SIF) were monitored in a simulated way and actions of the sustained release of (SBA-15)-ramipril was studied. The results showed that the loading amount of ramipril drug in SBA-15 was 90.30 mg/g. The cumulative sustained release rate of ramipril composite drug in SBF achieved 99.7 % after 27 h. When the sustained release of composite drug in SGJ was 8 h, the maximum cumulative sustained release ratio achieved 54.9 %. When the sustained release of composite drug was 9 h in SIF, the maximum cumulative sustained release ratio achieved 34.9 %. The method described in this study is suitable for carrying ramipril drug on SBA-15, and a new carrier to load ramipril drug was found. Meanwhile, the efficacy of ramipril drug and time efficacy could be improved.
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The authors acknowledge financial support by Education Department of Jilin Province, P. R. China. The number of the project was 2010JYT10, KYC -JC-XM-2010-014.
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Zhai, QZ., Wu, YY. & Wang, XH. Synthesis, characterization and sustaining controlled release effect of mesoporous SBA-15/ramipril composite drug. J Incl Phenom Macrocycl Chem 77, 113–120 (2013). https://doi.org/10.1007/s10847-012-0222-9
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DOI: https://doi.org/10.1007/s10847-012-0222-9