非离子表面活性剂用于液滴式 in vivo 应用
Heidi L van de Wouw1,2, Shuo-Ting Yen3,4, Manon Valet3
1Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive E., Los Angeles, CA 90095, USA.
Angewandte Chemie (International ed. in English)
|September 28, 2024
概括
研究人员通过结合聚乙烯糖醇 (PEG) 和聚 (PFPE) 分段开发了新的非离子表面活性剂. 这些表面活性剂有效地降低了碳油在水乳液的界面张力,增强了生物医学应用.
科学领域:
- 生物材料科学 生物材料科学
- 化学工程是化学工程的重要组成部分.
- 生物物理学的生物物理.
背景情况:
- 碳油为生物医学用途提供了独特的惰性和生物对称性.
- 稳定化碳油在水乳液需要具有低界面张力 (IFT) 的非离子表面活性剂.
- 缺乏合适的非离子表面活性剂限制了碳油在生物系统中的整合.
研究的目的:
- 合成和描述用于稳定水性环境中的碳油相的新型非离子表面活性剂.
- 使用定制设计的表面活性剂,在碳油和水之间实现低界面张力.
- 评估这些表面活性剂在生物应用中的性能.
主要方法:
- 聚乙烯糖醇 (PEG) 分段与聚乙烯 (PFPE) 分段的共价结合,产生表面活性剂.
- 合成具有不同分子量 (0.6466 kDa) 和水友性-脂友性平衡的表面活性剂面板.
- 测量HFE-7700碳油和水之间的界面张力.
- 选择的表面活性剂 (PEG5PFPE1) 的应用,用于斑马鱼的机械力测量.
主要成果:
- 开发了具有较低界面张力 (1.417.8 mN m-1) 的非离子表面活性剂.
- 优化了表面活性剂结构,以实现HFE-7700和水之间的最小IFT.
- 对于大多数表面活性剂,其水溶性较差,使其能够与油一起引入,并且漏最小.
- 在使用PEG5PFPE1在斑马鱼的机械力测量中获得了特殊的灵敏度.
结论:
- 新型PEG-PFPE非离子表面活性剂有效降低碳油乳液的界面张力.
- 这些定制表面活性剂在水性生物医学环境中提供了更好的稳定性和碳油的集成.
- 开发的表面活性剂对敏感的生物物理测量非常有前途,正如斑马鱼研究所证明的那样.
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