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无球形,纳米结构的药物输送系统,可调节释放和清除,用于肺部应用

Tomas Pioch¹, Thorben Fischer¹, Marc Schneider¹

¹Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, 66123 Saarbrücken, Germany.

|February 24, 2024

概括

一个新的微粒系统使用酸盐凝载体增强了肺部药物输送. 这些粒子提供可调节的释放,改善了空气动力学和受控的细胞吸收,减少了肺部积累.

科学领域:

生物材料科学生物材料科学
纳米技术纳米技术
制药科学制药科学

背景情况:

有效的药物输送到肺部仍然是一个重大挑战.
当前的系统可能会遇到积累和受控释放的问题.
需要先进的载体,具有可调节的特性和改进的安全配置文件.

研究的目的:

开发和描述一个纳米结构的微粒子载体系统,用于有效的肺部药物输送.
研究粒子几何和矩阵特性对药物释放,空气动力学和细胞相互作用的影响.
评估新型载体系统的生物相容性和细胞吸收动力学.

主要方法:

模板辅助制造微粒子载体使用酸盐凝.
毛细管力用于快速的粒子加载和稳定.
流量成像系统用于定量释放动力学评估.
下一代冲击器 (NGI) 用于空气动力学表征 (MMAD,FPF).
在体外毒性和细胞吸收研究使用差异化巨细胞系 (dTHP-1) 和光显微镜.

主要成果:

开发了具有可调节尺寸和可控制释放动力学的微筒.
与球形粒子相比,证明了优越的空气动力学特性 (较低的MMAD,更高的FPF).
在长达24小时内对巨细胞系呈现微不足道的毒性.
显示了视角比例依赖的细胞吸收率,视角比例较高的圆柱体细胞化速度较慢.

结论:

开发的纳米结构,微粒子系统为有效和安全的肺药物输送提供了一个有前途的方法.
几何参数 (面积比) 可以调整以调节细胞吸收和清除.
可生物降解的酸盐基质促进了控制的释放,并减轻了长期的肺积累.
该系统提供了一个多功能平台,以优化药物输送到肺部.

关键词:

细胞相互作用细胞相互作用解体解体解体微型小棒是什么意思微型小棒是什么意思粒子形状粒子形状药物输送到肺部的过程中.

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