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Single-Molecule Diffusion and Assembly on Polymer-Crowded Lipid Membranes
Published on: July 19, 2022
这些因素决定了Oligoether自组装单层的蛋白质抗性 - - 内部的水友性,终端的水友性,以及侧面的包装密度
Sascha Herrwerth1, Wolfgang Eck, Sven Reinhardt
1Angewandte Physikalische Chemie, Universität Heidelberg, INF 253, D 69120 Heidelberg, Germany.
Journal of the American Chemical Society
|August 2, 2003
概括
橄素自组装单层 (SAM) 抵抗蛋白质吸附,当他们有一个水友的内部和外部. 进入SAM内部的水透对于在这些"惰性"有机膜中实现蛋白质抵抗至关重要.
科学领域:
- 表面科学是一门科学.
- 材料科学是一种材料科学.
- 生物材料是一种生物材料.
背景情况:
- 自组装单层 (SAM) 对于表面修改至关重要.
- 了解蛋白质耐药性对于生物材料开发至关重要.
- 奥利古埃瑟SAM在创建惰性表面方面具有前景.
研究的目的:
- 系统地研究影响蛋白质抗性的结构因素.
- 阐明SAM组成,结构和蛋白质吸附之间的关系.
- 确定设计有效的抗蛋白表面的关键参数.
主要方法:
- 合成具有不同链长度和结尾的聚乙烯终结乙醇.
- 使用XPS,接触角度测量和IRRAS光谱学对SAM的表征.
- 通过圆测量量量化蛋白质吸附的量化.
主要成果:
- 疏水的内部 (例如,基)) 废除了蛋白质的抵抗.
- 高水接触角度 (>70°在黄金上,>65°在银上) 降低了蛋白质的抗性.
- 侧向压缩可以降低脂 (乙烯糖醇) SAMs中的蛋白质抗性.
结论:
- 内部和终端水友性都对蛋白质耐药性至关重要.
- 水分子透到SAM内部是蛋白质抵抗的先决条件.
- 设计"惰性"有机薄膜需要仔细控制SAM的水友性和结构.
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