奎尔在考利尼特上的极性驱动的选择性吸附:一个集成的DFT和蒙特卡洛研究
Abdelilah Ayad1, Achraf Harrou1, Abdelouahad El Himri1
1Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Mohammed First University, BP 717, Oujda 60000, Morocco.
Materials (Basel, Switzerland)
|January 28, 2026
概括
这项研究表明,奎尔素通过联接优先吸附于水友性高酸盐表面,增强药物递送潜力. 疏水表面显示较弱的范德瓦尔斯相互作用,为基于粘土的纳米载体设计提供了洞察力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 计算化学的计算化学
背景情况:
- 奎尔素显示出治疗前景,但由于溶解性和降解性差,面临限制.
- 天然粘土矿物质,如高利尼特提供可持续的药物输送平台,但封装机制需要更深入的理解.
- 考利尼特表面极性的作用 (水友性氨酸与水性氨酸) 在选择性药物吸附中的作用在很大程度上尚未被探索.
研究的目的:
- 在原子水平上对考利尼特基底表面的水友性 (001) 和水性 (00-1) 基底表面的奎尔素吸附量进行定量比较.
- 阐明受考利尼特结构极性影响的调控氨酸封装的分子机制.
主要方法:
- 采用蒙特卡洛采样和密度函数理论 (DFT) 进行原子模拟.
- 进行了对 quercetin 吸附能量的定量比较,并对两种高岩表面的相互作用进行了比较.
- 分析了电荷转移,结合和范德瓦尔斯相互作用,以了解吸附行为.
主要成果:
- 在色丁吸附过程中表现出明显的极性驱动选择性.
- 观察到水友 (001) 表面上强烈的外热吸附 (-206.65 kJ mol-1),由五个键稳定.
- 在疏水面 (00-1) 上发现显著较弱的吸附 (-147.16 kJ mol-1),受范德瓦尔斯力支配.
- 与疏水表面相比,对水友表面的电荷传递量化较大 (-0.198 e).
结论:
- 表面极性是考利尼特上奎尔塞丁封装的关键决定因素.
- 建立了结,电荷转移和吸附能量之间的联系,解释了选择性吸附.
- 提供了一个可预测的框架,用于设计优化的高酸盐基纳米载体,以提高稳定性,生物可用性和可控的药物释放.
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