一个直接的,实时的,尺寸解析的分析策略,跟踪生物相容的金纳米颗粒的药物加载和释放
Valentina Marassi1, Junjie Wang2, Stefano Giordani1
1Department of Chemistry G. Ciamician, University of Bologna, 40126, Bologna, Italy; byFlow srl, 40129, Bologna, Italy; INBB - Biostructures and Biosystems National Institute, 00136, Rome, Italy.
Analytica chimica acta
|June 8, 2025
概括
这项研究引入了不对称的流域流量分成法 (AF4) 与多个探测器相结合,以分析纳米粒子药物递送系统. 该方法提供实时洞察药物加载,释放和在生理条件下的稳定性.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 药理学 药理学是指药理学的学科.
背景情况:
- 对于纳米粒子药物输送系统的当前分析方法缺乏在生理条件下完全描述药物加载,释放和稳定性的能力.
- 需要先进的分析平台,可以实时监控药物输送系统性能的整个过程.
- 非对称流域流量分成 (AF4) 提供了基于尺寸的分离和纳米粒子在线表征的潜力.
研究的目的:
- 开发和验证一个多参数分析平台,以全面描述基于纳米粒子的药物输送系统.
- 为了研究黄素 (CUR) 的药物载荷,稳定性和释放动力学,从黄素 (BSA) 涂层的金纳米粒子 (AuNPs) 中.
- 建立一个新的指数,用吸收率来评估药物加载和释放.
主要方法:
- 不对称的流场流量分成 (AF4) 与在线多重探测器 (DAD-MALS) 相结合.
- 优化实验参数以实现最大的药物加载效率.
- 在不同温度 (20-37°C) 下监测药物释放和纳米粒子聚合.
主要成果:
- 对黄素 (CUR) 在白素 (BSA) 涂层黄金纳米粒子 (AuNPs) 上的最大加载效率达到了88.9%.
- 在401nm和530nm的吸收比被确立为评估药物加载和释放的可靠指数.
- 实时监测显示,在37°C时药物释放速度快 (34.8%),并在较低温度下检测到黄素聚合,这是AF4平台的首次.
结论:
- AF4-DAD-MALS平台提供了纳米粒子药物递送系统的详细实时现场分析.
- 这种技术是设计和优化药物输送系统的强大工具,为加载,释放和稳定机制提供了洞察力.
- 与传统技术相比,AF4-DAD-MALS是一种更可靠,更有洞察力的方法来研究纳米粒子药物递送系统动态.
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