Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.
Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.
Int J Biol Macromol. 2019 Aug 15;135:530-543. doi: 10.1016/j.ijbiomac.2019.05.204. Epub 2019 May 29.
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.
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。