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一个基于的纳米载体在高分子细节上的超分子组织
Mazda Rad-Malekshahi1, Koen M Visscher2, João P G L M Rodrigues2
1‡Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands.
Journal of the American Chemical Society
|May 30, 2015
概括
研究了对药物输送至关重要的两性纳米囊. 与脂质体不同,这些纳米载体可以自组装成互数字化的反平行β片,为改进纳米材料设计提供了洞察力.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 结构生物学 结构生物学
背景情况:
- 两性纳米囊是有前途的药物递送系统.
- 它们的精确组织是很难理解的,阻碍了合理的设计.
- 当前的模型通常假定脂质体类似的双层结构.
研究的目的:
- 阐明基于的纳米载体的高分辨率局部和超分子组织.
- 在接近生理条件下研究SA2的纳米载体结构.
- 为调整化纳米材料的生物物理性质提供见解.
主要方法:
- 固态NMR,AFM,SLS,DLS,FT-IR和CD的整合. 这是一个非常好的方法.
- 大规模和多规模分子动力学 (MD) 模拟的应用.
- 对纳米载体结构,动力学和分子间力量的原子层次分析.
主要成果:
- SA2纳米载体由相互数字化的反平行β片组成.
- 它的结构与脂脂脂质体相显著不同.
- 实现了囊泡表面结构,动力学和相互作用的详细分析.
结论:
- 化物纳米载体表现出独特的自我组装机制,与脂质体不同.
- 了解这种组织使得纳米载体特性有针对性的改进成为可能.
- 提出的方法对于对纳米材料的高分辨率研究是有价值的.
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