在药物功能化碳纳米管纳米载体中化学调节的放射性标记和膜亲和力
Sedigheh Abdollahi1, Heidar Raissi2, Farzaneh Farzad1
1Department of chemistry, University of Birjand, Birjand, Iran.
Scientific reports
|November 27, 2025
概括
药物选择影响技术-99m (99mTc) 装载碳纳米管 (CNT) 纳米载体的性能. 甲托雷克萨特功能化增强了针对癌症治疗和成像的稳定性和膜相互作用.
科学领域:
- 纳米医学是一种纳米医学.
- 计算化学计算化学
- 放射性药物科学 放射性药物科学
背景情况:
- 放射性标记纳米载体为癌症治疗提供了结合的治疗和诊断能力.
- 碳纳米管 (CNTs) 被探索为药物输送和成像的多功能平台.
研究的目的:
- 为了研究药物分子化学特征对技术-99m (99mTc) 载荷的CNT纳米载体行为在原子尺度上的影响.
- 了解药物结合如何影响放射性核素的结合,扩散和膜相互作用.
主要方法:
- 用分子动力学 (MD) 和元动力学模拟来研究SWCNT-药物联合体.
- 四种药物 (甲托雷克萨特,迪克洛菲纳克,基托蒂芬,皮罗西卡姆) 经过计算建模.
- 计算了热力学稳定性和结合能.
主要成果:
- 药物结构显著影响99mTc的结合强度,分子扩散和膜亲和力.
- 甲托雷克萨特功能化的CNT显示出最稳定的99mTc协调 (-825.80 kJ/mol).
- 甲基-CNT表现出最低的扩散系数和最强的膜相互作用 (-1376.02 kJ/mol).
结论:
- 合理的药物选择对于优化基于CNT的放射性药物的物理化学特性至关重要.
- 这些发现为设计用于核成像和药物输送的先进纳米载体提供了机制基础.
- 量身定制药物结合可以提高神经学纳米药物的疗效.
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