双重封装和顺序释放西斯普拉丁和维生素E从大豆多糖和β-环氧化生物粘合水凝纳米颗粒
Mohamed Eid1, Jingsong Zhu2, Muhammad Asif Ismail3
1College of Food Science and Technology, Huazhong Agricultural University, 1st Shizishan Road, Wuhan, Hubei 430070, China; Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, 1st Shizishan Road, Wuhan, Hubei 430070, China; Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor, 13736 Qaliuobia, Egypt.
International journal of biological macromolecules
|June 19, 2024
概括
化学交联的水凝纳米粒子 (HGNPs) 已开发用于双重药物输送. 这些pH-热敏的HGNP成功地加载了西斯和维生素E,增强了它们的控制释放和生物可用性.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 药物输送系统 药物输送系统
背景情况:
- 化学交联的水凝纳米粒子 (HGNPs) 在药物输送方面表现优异,相比于物理交联的纳米粒子.
- 开发先进的药物输送系统对于提高治疗疗效和患者治疗结果至关重要.
研究的目的:
- 创建pH-热双响应,生物粘合性HGNP,用于复合和控制释放西斯 (CDDP) 和维生素E (VE).
- 通过使用这些新型HGNP来提高CDDP和VE的生物可用性和体内循环时间.
主要方法:
- 通过与大豆多糖化合物 (SSPS) 的化学结合和通过与HGNP中的β-环氧 (β-CD) 的宿主-客人相互作用的VE通过CDDP的双复合.
- 使用FTIR,XRD,XPS和zeta潜力的HGNP的表征.
- 在不同的pH值和温度下进行体外释放研究,以及体内循环时间评估.
主要成果:
- 高GNP 呈现出均的大小分布 (约90 nm) 和确认的结合.
- 在pH 1.2下,CDDP的累积释放率高 (98%),在pH 7.4.4下释放率显著降低 (<45%).
- 与生理温度 (37°C,42°C) 相比,在较低的温度 (25°C) 中药物释放速度较慢.
- 提高了CDDP (15 wt%) 和VE (11.32 wt%) 的整合效率.
- (VE/CDDP) 载荷的HGNP在体内循环时间比自由药物更长.
结论:
- 开发的pH-热双响应的HGNP对于双重药物复合和受控释放是有效的.
- 高GNP系统显著改善了CDDP和VE的生物可用性和循环概况.
- 这种方法对先进的组合疗法和改进的药物输送应用有希望.
相关概念视频
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...


