Zhang LiYang, Ma Mengjiao, Li Junfei, Qiao Kun, Xie Yajie, Zheng Yudong
School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China.
Beijing Wanjie Medical Device Co., Ltd, Beijing, China.
Bioact Mater. 2024 May 19;39:147-162. doi: 10.1016/j.bioactmat.2024.05.018. eCollection 2024 Sep.
Microcarrier applications have made great advances in tissue engineering in recent years, which can load cells, drugs, and bioactive factors. These microcarriers can be minimally injected into the defect to help reconstruct a good microenvironment for tissue repair. In order to achieve more ideal performance and face more complex tissue damage, an increasing amount of effort has been focused on microcarriers that can actively respond to external stimuli. These microcarriers have the functions of directional movement, targeted enrichment, material release control, and providing signals conducive to tissue repair. Given the high controllability and designability of magnetic and electroactive microcarriers, the research progress of these microcarriers is highlighted in this review. Their structure, function and applications, potential tissue repair mechanisms, and challenges are discussed. In summary, through the design with clinical translation ability, meaningful and comprehensive experimental characterization, and in-depth study and application of tissue repair mechanisms, stimuli-responsive microcarriers have great potential in tissue repair.
近年来,微载体在组织工程领域取得了巨大进展,它能够负载细胞、药物和生物活性因子。这些微载体可以以最小的剂量注入到缺损部位,有助于为组织修复重建良好的微环境。为了实现更理想的性能并应对更复杂的组织损伤,越来越多的研究致力于能够对外界刺激产生主动响应的微载体。这些微载体具有定向移动、靶向富集、物质释放控制以及提供有利于组织修复的信号等功能。鉴于磁性和电活性微载体具有高度的可控性和可设计性,本文综述重点介绍了这些微载体的研究进展。讨论了它们的结构、功能及应用、潜在的组织修复机制和挑战。总之,通过具有临床转化能力的设计、有意义且全面的实验表征以及对组织修复机制的深入研究和应用,刺激响应性微载体在组织修复方面具有巨大潜力。
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