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相关概念视频

Cellular Membranes and Drug Transport01:24

Cellular Membranes and Drug Transport

309
Drugs must traverse multiple biological barriers, such as multi-layered skin, single-layered intestinal epithelium, and the plasma membrane, to reach their target sites within the body. The plasma membrane, a highly structured composite of phospholipids, carbohydrates, and proteins, is the cell's protective boundary, facilitating selective substance exchange.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
309

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Cellular Affinity of Particle-Stabilized Emulsion to Boost Antigen Internalization
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聚合物基础的多层微囊的形状对细胞内部化的影响

Xiaoqiang Zhang1,2,3, Jianmei Han2, Ting Ding1

  • 1Joint Research Centre on Medicine, Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China.

Langmuir : the ACS journal of surfaces and colloids
|December 3, 2024
PubMed
概括
此摘要是机器生成的。

微囊的形状显著影响细胞吸收. 头和立方形状显示了比球形更高的内化率,为药物载体的发展提供了洞察力.

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科学领域:

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

背景情况:

  • 药物载体的细胞内命运对于它们的有效性至关重要.
  • 载体形状会影响细胞吸收,但研究受到准备挑战的限制.

研究的目的:

  • 设计基于聚合物的微囊,具有定义的形状 (球形,花生,子,立方体).
  • 研究微囊形状对细胞内化的动力学和机制的影响.

主要方法:

  • 使用CaCO3模板上的层层组装制造微囊.
  • 使用SEM,CLSM,AFM,FTIR和XPS进行微囊形状和表面化学的表征.
  • 在各种细胞系中评估细胞内化的速率和机制.

主要成果:

  • 成功合成了具有独特形状和均表面化学 (PEI/PEG) 的微囊.
  • 与球形和花生形状相比,形和立方微体显示出明显更高的细胞内化率和数量.
  • 细胞吸收主要通过微皮诺细胞形成,无论微囊的形状如何.

结论:

  • 微囊形状是细胞内化效率的关键决定因素.
  • 具有特定形状 (子,立方体) 的工程微囊可以增强药物输送潜力.
  • 这项研究为设计基于微囊形态的先进药物输送系统提供了宝贵的数据.