Porous Inorganic Framework Thin Film as Drug-Eluting Stent Coating

项目摘要/摘要 该项目的主要目标是制备表面支撑性的多孔无机材料。 具有优异的药物输送性能的骨架薄膜。第二个目标，即 有助于实现第一个，是识别和更好地理解化学和 对药物装载和释放条件影响最大的结构特征。至 为了实现这些目标，PI建议修改和确定合适的水面平台 (具有特定的化学特征)可用于选择性地附着有机含铁金属 骨架(Fe-MOF)薄膜。这些可生物降解的Fe-MOF由Fe(III)簇合物组成 以及各种有机配体作为支撑物形成三维多孔结构。有机食品 节点也可以作为与功能化金属底物交联物的结合部位。这种药 表面支撑型Fe-MOF薄膜的加载/释放将通过光谱进行检查 以及显微方法。我们还将评估这些铁的毒性和机械耐久性。 MOF涂料。这些含铁无机骨架作为药物载体的性能 将使用表面技术在体外进行研究。从这些初步研究中获得的知识 为今后这些Fe-MOF薄膜的体内潜在应用研究提供了有益的参考 药物洗脱支架涂层。此外，该项目还旨在增进对 多孔性杂化材料与多种治疗材料的表面和界面相互作用 探员们。这些结果将带来新的见解，并指导未来药物的材料设计- 洗脱支架。拟议的研究活动将提供与健康相关的优秀研究- 为像我们这样的少数族裔服务机构的学生提供教育机会，这将带来 对我们的社会产生了重大的积极影响。

Project Summary/Abstract The primary objective of the proposed project is to prepare surface supportive porous inorganic framework thin films that have superior properties for drug delivery. The second objective, which helps with the realization of the first one, is to identify and better understand the chemical and structural features that have the greatest impact on the drug loading and releasing conditions. To accomplish these objectives, the PI proposes to modify and identify suitable surface platforms (with specific chemical features) that can be used to attach selective iron-containing metal organic framework (Fe-MOF) thin films. These biodegradable Fe-MOFs are composed of Fe(III) clusters and various organic ligands as struts forming three-dimensional porous structures. The organic nodes can also serve as binding sites to crosslink with functionalized metal substrates. The drug loading/releasing with surface-supportive Fe-MOF thin films will be examined by spectroscopic and microscopic methods. We will also evaluate the toxicity and mechanical durability of these Fe- MOF coatings. The performance of these iron-containing inorganic frameworks as drug carriers will be studied in vitro using surface techniques. The knowledge acquired from these initial studies will be beneficial for the future in vivo studies of applying these Fe-MOF thin films as potential drug-eluting stent coatings. In addition, the project aims to enhance the scientific understanding of surface and interface interactions between porous hybrid materials and assorted therapeutic agents. These results will lead to new insights and guide the material design for future drug- eluting stents. The proposed research activities will provide excellent health-related research- education opportunities for students in a minority serving institution like ours, which will bring a significant positive impact to our community.