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在P123中自我关联的工程 微粒 合理化其他多元体的作用 作为混合系统,具有不同的水友性
Nitumani Tripathi1, Germán Pérez-Sánchez2, Nicolas Schaeffer2
1Department of Chemistry, Sardar Vallabhbhai National Institute of Technology (SVNIT), Ichchhanath, Surat, Gujarat 395 007, India.
Langmuir : the ACS journal of surfaces and colloids
|April 11, 2025
概括
这项研究调查了不同的Pluronic如何影响Pluronic P123微粒的热反应行为. 不同的Pluronic组合会改变菌粒结构和溶液特性,影响粘度和粘性弹性.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 聚乙烯氧化物-聚乙烯氧化物) 块共聚合物 (Pluronics) 呈现复杂的溶液行为.
- 了解它们的自我组装对于药物输送和纳米技术的应用至关重要.
- 普鲁罗尼克P123形成,但其在与其他普鲁罗尼克混合系统中的行为不太了解.
研究的目的:
- 研究不同Pluronic中的不同聚乙烯氧化物 (EO) 含量对Pluronic P123微粒热反应行为的影响.
- 阐明这些相互作用对溶液性质,细胞结构和动态的影响.
- 为了将宏观的溶液行为与分子水平的自我组装相关联.
主要方法:
- 风湿学分析以确定相对粘度 (ηrel) 和粘弹性特性.
- 动态光散射 (DLS) 用于测量水力动力直径 (Dh) 的温度依赖变化.
- 微角中子散射 (SANS) 和传输电子显微镜 (TEM) 用于结构和形态的表征.
- 粗粒度分子动力学 (CG-MD) 模拟用于分子层面的自我组装,包装和稳定性的洞察力.
主要成果:
- 不同的Pluronics调节了P123微粒的热反应过渡 (太阳,蓝点,云点).
- 风湿学揭示了混合系统中不同的流动行为和粘性弹性特性.
- DLS和SANS显示了温度依赖的细胞生长和结构变化.
- TEM证实了形态过渡,而CG-MD模拟提供了分子层面的包装和稳定性的理解.
结论:
- 同添加的Pluronics的水友性显著影响P123微粒的自我组装和热响应行为.
- 实验技术和分子模拟的结合提供了对这些复杂系统的全面了解.
- 这些发现为为特定应用设计定制的基于Pluronic的配方提供了洞察力.
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