高频毛细血管波启用超小滴剂用于吸入药物输送
Haitao Zhang1, Zirui Zhao1, Yangchao Zhou1
1State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China. xduan@tju.edu.cn.
Lab on a chip
|June 25, 2025
概括
这项研究引入了一种新的便携式雾化器,使用声波来创建用于肺部药物输送的小,最佳的气溶滴. 这项技术提高了效率,可以处理粘性液体,为向肺部治疗提供了低成本的解决方案.
科学领域:
- 生物医学工程 生物医学工程
- 呼吸系统医学 呼吸系统医学
- 材料科学 材料科学 材料科学
背景情况:
- 吸入药物输送对于肺部疾病至关重要,但受到当前雾化器的大型气溶液滴的限制.
- 在上呼吸道中的无效沉积会降低肺部疾病的治疗效率.
研究的目的:
- 开发一种便携式,低能耗,经济高效的雾化器,以提供最佳的气溶液滴大小,用于肺吸入.
- 克服现有的雾化方法在滴滴大小和粘度处理方面的局限性.
主要方法:
- 利用千兆赫兹 (GHz) 声波来诱导毛细血管波浪破裂以产生气溶.
- 集成了一个GHz批量声学共振器与半开放的微通道在一个微型雾化器设计.
- 使用肺部模型和小鼠体内试验评估雾化器性能.
主要成果:
- 实现了气溶液滴大小分布,其中96%在低功率下小于5微米,超过现有方法.
- 证明了高达5000cP度的液体的高效雾化.
- 肺部模型显示药物递送效率为88%,体内测试证实了通过自主吸入有效的肺向递送.
结论:
- 开发的GHz声波雾化器提供可调节的液滴大小和广泛的粘度处理,以有效的肺药物输送.
- 无操作,低成本和优化的滴滴特性使这项技术成为自主肺药物输送和针对小气道和气泡的组合疗法.
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