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Actively Controllable Stem Cell Spheroid-based Microrobot for Tissue Regeneration

机译:可主动控制的基于干细胞球体的组织再生微型机器人

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In this paper, actively controllable stem cell spheroid-based microrobot is proposed to improve targeting the stem cells to specific desired sites using external electromagnetic actuation (EMA) system. Mouse mesenchymal stem cell (MSCs) were labeled with 0.2 mg/ml magnetic nanoparticles (MNPs) and no cytotoxicity was observed up to MNPs concentration of 0.2 mg/ml on 2D and 3D culture. The stem cell spheroids were fabricated with diameters of 353.62 μm ± 24.61 (MNP unlabeled) and 336.84 μm ± 28.2 (MNP labeled) by ultra-low attachment plate culture. In addition, mouse MSCs spheroids were actively controlled by the EMA system. Therefore, these results demonstrated that stem cell spheroid-based microrobot can be potential therapeutic agent for tissue regeneration or repairing, such as, articular cartilage regeneration.
机译:在本文中,提出了一种可主动控制的基于干细胞球体的微型机器人,以利用外部电磁驱动(EMA)系统将干细胞靶向特定的特定位点。用0.2 mg / ml磁性纳米颗粒(MNP)标记小鼠间充质干细胞(MSCs),在2D和3D培养物中,直至MNPs浓度达到0.2 mg / ml都未观察到细胞毒性。通过超低附着板培养,干细胞球体的直径为353.62μm±24.61(MNP未标记)和336.84μm±28.2(MNP标记)。此外,小鼠MSCs球体受到EMA系统的主动控制。因此,这些结果表明,基于干细胞球体的微型机器人可以成为组织再生或修复(例如关节软骨再生)的潜在治疗剂。

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