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在药物纳米粒子上的结构选择性多多巴胺涂层.

Danna Niezni1, Dana Meron Azagury1, Maytal Avrashami1

  • 1Department of Biomedical Engineering Technion - Israel Institute of Technology, Haifa, 32000, Israel.

ACS applied materials & interfaces
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PubMed
概括
此摘要是机器生成的。

聚多巴胺 (PDA) 涂层对小分子药物具有选择性,挑战其通用粘附性. 分子结构,特别是含量,决定了PDA涂层的行为,以提高纳米粒子稳定性和药物输送.

关键词:
决策树是一个决策树.药物输送是药物输送的过程.纳米医药是一种纳米医药.纳米颗粒是一种纳米粒子.纳米沉是一种纳米沉.聚多巴胺胺是一种多多巴胺胺.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 药物运输 药物运输 药物运输

背景情况:

  • 聚多巴胺 (PDA) 以其普遍的,基质独立的粘附特性而闻名.
  • 目前的理解表明,PDA粘附受水和π-π相互作用的控制.
  • PDA涂层的非特异性限制了复杂配方中的精确控制.

研究的目的:

  • 为了研究小分子药物上聚多巴胺 (PDA) 涂层的选择性.
  • 挑战PDA的普遍,基板独立的粘附的范式.
  • 根据药物分子结构开发PDA涂层行为的预测模型.

主要方法:

  • 在IR783稳定纳米颗粒中对30种化疗剂进行系统选.
  • 利用Dragon分子描述器和主要组件分析来进行结构-属性关系分析.
  • 开发并验证了基于含量和结合拓学的决策树模型.

主要成果:

  • PDA涂层表现出显著的结构依赖的变化,与普遍粘附相矛盾.
  • 基于百分比和N-C-N动机的预测模型实现了80%的分类准确性.
  • PDA涂层提高了体稳定性,并减少了代表性药物的聚合 (特拉美替尼,达沙替尼),而不会影响药物释放.
  • 在体内研究表明,在HCT116异种移植中,PDA涂层药物的疗效和配方稳定性得到了提高.

结论:

  • PDA涂层选择性是一个以前未知的现象,是由分子结构驱动的,而不仅仅是传统的相互作用.
  • 开发的计算模型使PDA涂层纳米颗粒的合理设计能够针对特定应用.
  • 这一发现扩大了对PDA表面化学及其在纳米医学中的应用的理解.