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从纳米微粒到纳米气泡,基于重复压缩方法.

Tiandong Chen1, Weiling Miao1, Zhenrong Yang1

  • 1State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, Jiangsu, China.

Langmuir : the ACS journal of surfaces and colloids
|November 14, 2023
PubMed
概括

组织良好的纳米结构,如脂质体和聚合物纳米纤维,对于产生稳定的纳米泡至关重要. 这项研究揭示了这些纳米结构的关键特性,这些纳米结构对于生物医学应用的有效纳米泡生成至关重要.

科学领域:

  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学
  • 纳米技术 纳米技术

背景情况:

  • 纳米泡在生物医学中越来越多地被用作超声波对比剂和基因/药物输送.
  • 目前的方法经常使用无序的外材料,限制了纳米泡的统一性和稳定性.
  • 重复的压缩方法已经显示出生产脂纳米泡的前景.

研究的目的:

  • 研究组织良好的纳米结构 (脂质体和聚合物纳米纤维) 对重复压缩方法的反应.
  • 确定从预先形成的纳米结构生成纳米泡的关键因素.
  • 了解纳米结构组织如何影响纳米泡的形成和特性.

主要方法:

  • 预先准备的脂质体和聚合物纳米丝片经过连续重复的压缩方法.
  • 在压缩前后分析了纳米纤维的尺寸分布和形态.
  • 超声波图像对比度增强被评估以评估纳米泡的性能.

主要成果:

  • 一个脂双层对于形成基于脂质体的纳米泡来说至关重要.
  • 聚合物膜的低弹性模块对于聚合物纳米纤维中的气体封装至关重要.
  • 重复压缩方法有效地从这些有组织的纳米结构中产生纳米泡.

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结论:

  • 组织良好的纳米结构为生产统一和稳定的纳米泡提供了优势.
  • 了解外材料属性的作用是优化纳米泡制备的关键.
  • 这项研究为生物医学应用的纳米泡的设计和生产提供了新的见解.