制备,特征和药物释放的特性 pH 敏感的 Zingiber officinale 聚糖化水凝珠
Yongshuai Jing1, Yameng Zhang1, Wenjing Cheng1
1College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, 26 Yuxiang Street, Shijiazhuang 050018, China.
International journal of biological macromolecules
|February 23, 2024
概括
由碳糖甲基纤维素,Zingiber officinale多糖和奇托制成的新型水凝珠显示出pH敏感度. 这些珠子有效地携带口服胰岛素,在模拟的肠液中释放超过90%.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 聚合物化学 聚合物化学
背景情况:
- 口服胰岛素的输送由于胃肠道的降解而面临挑战.
- 开发有效的载体对于改善胰岛素生物可用性和患者服药性至关重要.
研究的目的:
- 为了创建pH敏感的水凝珠,用于口服胰岛素的输送.
- 评估开发的水凝载体的载荷能力,捕获效率和体外释放特征.
主要方法:
- 通过离子凝方法,用碳素甲基纤维素 (CMC),Zingiber officinale多糖化物 (ZOP) 和奇托 (CS) 制备了水凝珠.
- 描述涉及富里埃变换红外光谱学 (FT-IR),X射线衍射 (XRD),扫描电子显微镜 (SEM) 和热重力测量分析 (TGA).
- 实验室释放研究是在模拟胃液 (SGF) 和模拟肠液 (SIF) 中进行的.
主要成果:
- 水凝形成涉及ZOP和CMC之间的金属离子协调 (Fe3+),通过非共价键进行CS涂层.
- 水凝珠表现出显著的pH敏感的胀行为.
- 实现了高胰岛素加载率 (69.43 ± 7.32 mg/g) 和捕获效率 (66.94 ± 7.43%) 的结果.
- 实验室释放显示,SGF在2小时内释放的胰岛素<20%,9小时后在SIF释放的累积释放>90%.
结论:
- 开发的 (ZOP/CMC-Fe3+) @CS水凝珠是口服胰岛素输送的有效载体.
- 它们的pH敏感性和受控释放特征使它们适合用于肠道胰岛素的注射.
- 这种水凝系统有可能改善口服胰岛素治疗.
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