School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom; Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland.
School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom.
Mater Sci Eng C Mater Biol Appl. 2020 Jul;112:110939. doi: 10.1016/j.msec.2020.110939. Epub 2020 Apr 8.
In this work, a nozzle-free electrospinning device was built to obtain high-throughput production of silk fibroin-based biocompatible composite fibers with tunable wettability. Synthetic biomaterials tend to present suboptimal cell growth and proliferation, with many studies linking this phenomenon to the hydrophobicity of such surfaces. In this study, electrospun mats consisting of Poly(caprolactone) blended with variant forms of Poly(glycerol sebacate) (PGS) and regenerated silk fibroin were fabricated. The main aim of this work was the development of fiber mats with tunable hydrophobicity/hydrophilicity properties depending on the esterification degree and concentration of PGS. A variation of the conventional protocol used for the extraction of silk fibroin from Bombyx mori cocoons was employed, achieving significantly increased yields of the protein, in a third of the time required via the conventional extraction protocol. By altering the surface properties of the electrospun membranes, the trinary composite biomaterial presented good in vitro fibroblast attachment behavior and optimal growth, indicating the potential of such constructs towards the development of an artificial skin-like platform that can aid wound healing and skin regeneration.
在这项工作中,构建了一种无喷嘴静电纺丝装置,以获得具有可调节润湿性的高通量生产丝素基生物相容性复合纤维。合成生物材料往往表现出细胞生长和增殖不佳,许多研究将这种现象与这些表面的疏水性联系起来。在这项研究中,制备了由聚己内酯与不同形式的聚(癸二酸甘油酯)(PGS)和再生丝素混合的静电纺丝垫。这项工作的主要目的是开发具有可调节疏水性/亲水性特性的纤维垫,具体取决于 PGS 的酯化度和浓度。采用了从家蚕茧中提取丝素的常规方法的变体,与常规提取方法相比,在所需时间的三分之一内,大大提高了蛋白质的产量。通过改变静电纺丝膜的表面性能,三元复合生物材料表现出良好的成纤维细胞附着行为和最佳生长,表明这些结构具有开发人工类似皮肤平台的潜力,该平台可辅助伤口愈合和皮肤再生。
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