素修饰的7S蛋白质脂质体:专注于结构性质,稳定性,以及装载Morin的消化性质
Kunyu Ren1, Xinru Cao1, Lexi Zheng1
1College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
Food chemistry
|February 7, 2025
概括
素修饰增强了脂质体的稳定性和药物输送. 这项研究优化了pectin度以改善脂质体结构,从而改善了活性化合物的封装和受控释放.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 制药科学 制药科学
背景情况:
- 脂质体是多功能药物递送系统,但它们的稳定性和受控释放特性需要优化.
- 是一种天然的多糖体,可用于脂质体的表面修饰,以改善其特性.
研究的目的:
- 为了研究氨酸度对脂质体结构变化,稳定性和释放性质的影响.
- 评估点在修改脂质体表面和提高其作为传递系统的性能方面的作用.
主要方法:
- 用不同度的pectin (Lip-7S-Pec) 制备了脂质体.
- 分析了粒子大小,表面水性,微极性和粘度.
- 传输电子显微镜 (TEM) 用于结构分析.
- 在不同的pH值和离子强度条件下评估了稳定性.
- 确定了封装效率和药物释放概况 (摩林和FFA).
主要成果:
- 添加点氨酸 (0.4%) 最大化了脂质体颗粒大小 (282.96 nm) 并诱导了二次表面修饰.
- 增加的疏水性,减少的微极性和更高的粘度表明了更有序的脂质体结构.
- 素修饰显著改善了pH值,离子强度和储存稳定性,减少了聚合.
- 带有pectin和Morin (Lip-7S-Mr-Pec) 的脂质体显示出增加的颗粒大小 (295.2 nm) 和60.4%的封装率.
- 在模拟的胃条件下,丁修饰脂质体减少了降解,并延迟了早期的莫林释放.
- 观察到FFA的受控释放,在0.4%的pectin度下释放最小 (17.3%).
结论:
- 蛋白修饰提供了一种可行的策略,可以增强脂质体的稳定性并控制封装物质的释放.
- 优化的pectin度 (0.4%) 产生了一个强大的脂肪体系统,具有更好的结构完整性和传递性能.
- 这种双层修饰方法为制药应用提供了一个有前途的,稳定的脂质体输送系统.
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