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载阿魏酸的微球增强 3D 杂化支架用于抗菌伤口敷料。

Ferulic acid loaded microspheres reinforced in 3D hybrid scaffold for antimicrobial wound dressing.

机构信息

Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India.

Centre for Biotechnology, Anna University, Chennai 600025, India.

出版信息

Int J Biol Macromol. 2021 Apr 30;177:463-473. doi: 10.1016/j.ijbiomac.2021.02.124. Epub 2021 Feb 18.

Abstract

Here we report the preparation of biomimetic fibrin/chitosan/keratin hybrid scaffolds with a synergistic combination of ferulic acid loaded silica microspheres for antimicrobial wound dressing applications. The infrared and X-ray powder diffraction studies confirm the homogenous nature of the prepared hybrid scaffolds without any major interactions between the constituents. The developed hybrid scaffolds show good thermal, porosity, compression and water uptake properties. Scanning electron microscopic analysis shows that the as-synthesized ferulic acid loaded silica microspheres exhibit an average size of 35 ± 10 μm and also exposes the smooth surface with interconnected porosity in the prepared hybrid scaffolds. The incorporated ferulic acid loaded silica microspheres hybrid scaffolds show effective antimicrobial activity against the common wound pathogens. In vitro NIH3T3 fibroblast cell culture and drug release studies reveal that the prepared hybrid scaffolds have enhanced cell proliferation and adhesion with a prolonged drug release for about 72 h. In vitro wound healing and actin cytoskeleton analysis reveal that the incorporated ferulic acid loaded silica microspheres in fibrin/chitosan/keratin hybrid scaffolds facilitates cell growth and migration to damaged area through cell-cell interactions. These results suggest that the prepared hybrid scaffolds with ferulic acid loaded silica microspheres have great potential for soft tissue engineering applications particularly for the treatment of chronic and infected wounds.

摘要

在这里,我们报告了仿生纤维蛋白/壳聚糖/角蛋白杂化支架的制备,该支架具有负载阿魏酸的二氧化硅微球的协同组合,可用于抗菌伤口敷料应用。红外和 X 射线粉末衍射研究证实了所制备的杂化支架具有均匀的性质,其中各成分之间没有任何主要相互作用。所开发的杂化支架具有良好的热性能、孔隙率、压缩性和吸水性。扫描电子显微镜分析表明,所合成的负载阿魏酸的二氧化硅微球的平均粒径为 35 ± 10 μm,并且在制备的杂化支架中还暴露了具有互联孔隙的光滑表面。负载阿魏酸的二氧化硅微球杂化支架具有有效的抗菌活性,可抑制常见的伤口病原体。体外 NIH3T3 成纤维细胞培养和药物释放研究表明,负载阿魏酸的二氧化硅微球杂化支架具有增强的细胞增殖和粘附性,并且药物释放时间可延长约 72 小时。体外伤口愈合和肌动蛋白细胞骨架分析表明,负载阿魏酸的二氧化硅微球在纤维蛋白/壳聚糖/角蛋白杂化支架中的掺入有助于通过细胞-细胞相互作用促进细胞生长和迁移到受损区域。这些结果表明,负载阿魏酸的二氧化硅微球的杂化支架具有巨大的软组织工程应用潜力,特别是用于治疗慢性和感染性伤口。

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