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通过生物制造的负载白藜芦醇的纳米氧化铈聚己内酯实现脊髓损伤修复高效恢复的新方法,以提高体外生物相容性和自我恢复能力。

Novel Approach for Efficient Recovery for Spinal Cord Injury Repair via Biofabricated Nano-Cerium Oxide Loaded PCL With Resveratrol to Improve in Vitro Biocompatibility and Autorecovery Abilities.

作者信息

Dong Liang, Kang Xin, Ma Qiang, Xu Zhengwei, Sun Honghui, Hao Dingjun, Chen Xiujin

机构信息

Department of Spine Surgery, Hong-Hui Hospital, Xi' an Jiaotong University College of Medicine, Xi'an, Shaanxi Province, People's Republic of China.

Department of Orthopedic, Hong-Hui Hospital, Xi' an Jiaotong University College of Medicine, Xi'an, Shaanxi Province, People's Republic of China.

出版信息

Dose Response. 2020 Sep 2;18(3):1559325820933518. doi: 10.1177/1559325820933518. eCollection 2020 Jul-Sep.

Abstract

It is more difficult to develop the low-cost spinal cord injury repair materials with high stability and biocompatibility for the biomedical applications. Herein, for the first time, we demonstrated the functional restoration of an injured spinal cord by the nano CeO particles assembled onto poly (∊-caprolactone) (PCL)/resveratrol (RVL) were synthesized using the biocompatible ionic liquid. The as-prepared biocompatible nanomaterials were characterized and confirmed by using different instruments such as Fourier transform infra-red spectroscopy for functional groups identification, X-ray diffraction for crystalline nature, Scanning electron microscopy, transmission electron microscopy for morphological structure, Dynamic light scattering for size distribution of the nanoparticles and thermogravimetric analysis for thermal properties. The synergetic effect between the uniform distributions of nano-sized CeO particles onto the PCL polymer with RVL can remarkably enhance the catalytic performance. Biofabricated nano-cerium oxide loaded PCL with RVL revealed that treatment significantly preserved hydrogen peroxide and also good catalytic performance. This study presents a nano-sized cerium oxide particles loaded PCL with RVL biocompatible materials have been providing highly efficient regenerative activity and biocompatibility in spinal card regeneration.

摘要

开发具有高稳定性和生物相容性的低成本脊髓损伤修复材料用于生物医学应用更加困难。在此,我们首次展示了通过使用生物相容性离子液体合成的负载在聚(ε-己内酯)(PCL)/白藜芦醇(RVL)上的纳米CeO颗粒对损伤脊髓的功能恢复。通过使用不同仪器对所制备的生物相容性纳米材料进行表征和确认,如用于官能团鉴定的傅里叶变换红外光谱、用于晶体性质的X射线衍射、用于形态结构的扫描电子显微镜、透射电子显微镜、用于纳米颗粒尺寸分布的动态光散射以及用于热性质的热重分析。纳米级CeO颗粒在PCL聚合物上与RVL的均匀分布之间的协同效应可显著提高催化性能。生物制造的负载纳米氧化铈的PCL与RVL表明,该处理能显著保留过氧化氢且具有良好的催化性能。本研究表明,负载纳米氧化铈颗粒的PCL与RVL生物相容性材料在脊髓再生中提供了高效的再生活性和生物相容性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d98/7476352/0a5ff283946d/10.1177_1559325820933518-fig1.jpg

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