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通过悬浮、双喷头和多层静电纺丝制备金盏花提取物/PCL/玉米朊/阿拉伯胶纳米纤维生物复合支架用于皮肤组织工程。

Calendula officinalis extract/PCL/Zein/Gum arabic nanofibrous bio-composite scaffolds via suspension, two-nozzle and multilayer electrospinning for skin tissue engineering.

机构信息

Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.

Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.

出版信息

Int J Biol Macromol. 2019 Aug 15;135:530-543. doi: 10.1016/j.ijbiomac.2019.05.204. Epub 2019 May 29.

Abstract

This work investigates the incorporation of the Calendula officinalis (C. officinalis) extract in electrospun fiber scaffolds composed of poly (ε-caprolactone) (PCL), Zein and gum arabic (GA). Three methods of electrospinning were used: suspension electrospinning, in which C. officinalis extract was directly added in the PCL/Zein/GA solution, two-nozzle electrospinning, in which hybrid PCL/Zein/GA and PCL/C. officinalis nanofibrous layers were prepared by two syringes and multilayer electrospinning, in which layer-by-layer scaffold was fabricated of PCL/Zein/GA and PCL/C.officinalis nanofibrous mats. SEM micrographs of fabricated scaffolds depicted beadless nanofibers with interconnected pores. The PCL/Zein/GA/C.officinalis scaffolds possess good hydrophilicity with high porosity (about 80%) and also exhibited desirable mechanical properties and suitable degradability for skin tissue engineering. Multilayer produced scaffold showed more tensile strength than other C. officinalis-loaded PCL/Zein/GA scaffolds. In vitro C.officinalis release exposed gradual and sustained release behavior for fabricated scaffold by multilayer electrospinning. The results of MTT analysis and SEM images confirmed that PCL/Zein/GA/C.officinalis nanocomposite scaffold had favorable proliferation and adhesion against fibroblast cell as compared to PCL/Zein/GA scaffold for regenerating skin. The C. officinalis-loaded PCL/Zein/GA scaffold indicated better antibacterial properties and biocompatibility than PCL/Zein/GA scaffold. The results confirmed that C. officinalis-loaded PCL/Zein/GA nanocomposite scaffolds would be desirable biomaterial for skin regeneration.

摘要

这项工作研究了将金盏花(C. officinalis)提取物纳入由聚己内酯(PCL)、玉米醇溶蛋白和阿拉伯树胶(GA)组成的电纺纤维支架中。使用了三种电纺方法:悬浮电纺,其中将 C. officinalis 提取物直接添加到 PCL/玉米醇溶蛋白/GA 溶液中;双喷嘴电纺,其中通过两个注射器制备混合 PCL/玉米醇溶蛋白/GA 和 PCL/C. officinalis 纳米纤维层;多层电纺,其中 PCL/玉米醇溶蛋白/GA 和 PCL/C. officinalis 纳米纤维垫逐层构建支架。制备的支架的 SEM 显微照片显示出无珠纳米纤维和互连的孔。PCL/玉米醇溶蛋白/GA/C. officinalis 支架具有良好的亲水性,高孔隙率(约 80%),还表现出良好的机械性能和适合皮肤组织工程的降解性。与其他负载 C. officinalis 的 PCL/玉米醇溶蛋白/GA 支架相比,多层制备的支架具有更高的拉伸强度。体外 C. officinalis 释放暴露了多层电纺制备的支架具有渐进和持续的释放行为。MTT 分析和 SEM 图像的结果证实,与 PCL/玉米醇溶蛋白/GA 支架相比,PCL/玉米醇溶蛋白/GA/C. officinalis 纳米复合材料支架对成纤维细胞具有更好的增殖和粘附性,有利于皮肤再生。负载 C. officinalis 的 PCL/玉米醇溶蛋白/GA 支架表现出比 PCL/玉米醇溶蛋白/GA 支架更好的抗菌性能和生物相容性。结果证实,负载 C. officinalis 的 PCL/玉米醇溶蛋白/GA 纳米复合材料支架将是皮肤再生的理想生物材料。

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