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Electrophoretic deposition of coatings for local delivery of therapeutic agents
Progress in Materials Science ( IF 37.4 ) Pub Date : 2023-03-14 , DOI: 10.1016/j.pmatsci.2023.101111
Xian Cheng , Yanping Liu , Ousheng Liu , Yanqin Lu , Zhengwei Liao , Zoya Hadzhieva , Lili Chen , Sander G.C. Leeuwenburgh , Aldo R. Boccaccini , Fang Yang

Electrophoretic deposition (EPD) is an effective technique to construct coatings onto the surface of medical devices. These coatings can act as reservoirs for local delivery of therapeutic agents, including metal ions and metal-free drugs. This manuscript presents a comprehensive overview of the fundamentals and application of EPD coatings for local delivery of therapeutic agents, with a specific focus on the mechanism and control over loading and release of therapeutic agents. After a brief introduction of the EPD coating process, the matrices that are most commonly deposited using EPD for drug delivery purposes are summarized including the mechanism of their deposition without additives and co-deposition with additives. Subsequently, three strategies towards loading therapeutic agents are discussed, including i) co-deposition of therapeutic agents with coating matrices, ii) pre-loading therapeutic agents into microcarriers, and iii) post-loading therapeutic agents into prepared coatings. Furthermore, factors influencing loading (e.g., EPD processing parameters and additives) are identified. Subsequently, the release mechanisms as well as the influence of both intrinsic (e.g., additives, layered structures, building blocks, and microcarrier properties) and extrinsic processing parameters (e.g., pH, electric, magnetic and photothermal stimuli) used to tune the release kinetics are presented. Additionally, the applications of therapeutic agent loaded EPD coatings are summarized. Finally, the remaining challenges and future perspectives related to the use of EPD coatings for drug delivery purposes are reviewed.



中文翻译:

用于局部递送治疗剂的涂层的电泳沉积

电泳沉积 (EPD) 是一种在医疗器械表面构建涂层的有效技术。这些涂层可以作为局部递送治疗剂(包括金属离子和非金属药物)的储存库。本手稿全面概述了 EPD 涂层在治疗剂局部输送中的基本原理和应用,特别关注治疗剂加载和释放的机制和控制。在简要介绍 EPD 涂层工艺后,总结了最常使用 EPD 沉积的药物输送基质,包括无添加剂沉积和有添加剂共沉积的机理。随后,讨论了加载治疗剂的三种策略,包括 i) 治疗剂与涂层基质的共沉积,ii) 将治疗剂预加载到微载体中,以及 iii) 将治疗剂后加载到准备好的涂层中。此外,确定了影响负载的因素(例如,EPD 处理参数和添加剂)。随后,释放机制以及用于调整释放动力学的内在(例如,添加剂、层状结构、构件和微载体特性)和外在工艺参数(例如,pH、电、磁和光热刺激)的影响被提出。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。ii) 将治疗剂预加载到微载体中,和 iii) 将治疗剂后加载到准备好的涂层中。此外,确定了影响负载的因素(例如,EPD 处理参数和添加剂)。随后,释放机制以及用于调整释放动力学的内在(例如,添加剂、层状结构、构件和微载体特性)和外在工艺参数(例如,pH、电、磁和光热刺激)的影响被提出。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。ii) 将治疗剂预加载到微载体中,和 iii) 将治疗剂后加载到准备好的涂层中。此外,确定了影响负载的因素(例如,EPD 处理参数和添加剂)。随后,释放机制以及用于调整释放动力学的内在(例如,添加剂、层状结构、构件和微载体特性)和外在工艺参数(例如,pH、电、磁和光热刺激)的影响被提出。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。此外,确定了影响负载的因素(例如,EPD 处理参数和添加剂)。随后,释放机制以及用于调整释放动力学的内在(例如,添加剂、层状结构、构件和微载体特性)和外在工艺参数(例如,pH、电、磁和光热刺激)的影响被提出。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。此外,确定了影响负载的因素(例如,EPD 处理参数和添加剂)。随后,释放机制以及用于调整释放动力学的内在(例如,添加剂、层状结构、构件和微载体特性)和外在工艺参数(例如,pH、电、磁和光热刺激)的影响被提出。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。介绍了用于调整释放动力学的构建块和微载体特性)和外部处理参数(例如,pH、电、磁和光热刺激)。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。介绍了用于调整释放动力学的构建块和微载体特性)和外部处理参数(例如,pH、电、磁和光热刺激)。此外,还总结了载有治疗剂的 EPD 涂层的应用。最后,回顾了与将 EPD 涂层用于药物输送目的相关的剩余挑战和未来前景。

更新日期:2023-03-14
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