Department of Biological Engineering, University of Missouri, Room 148 Agricultural Engineering Building, Columbia, MO 65211, USA.
J Mater Sci Mater Med. 2012 Jul;23(7):1645-54. doi: 10.1007/s10856-012-4641-3. Epub 2012 Apr 12.
Collagen and hyaluronic acid (HA) are main components of the extracellular matrix and have been utilized in electrospinning; a technique that creates nanosized fibers for tissue scaffolds. A collagen/HA polymer solution was electrospun into a scaffold material for osteoporosis patients who have reduced bone strength. To synthesize nanofibers, a high voltage was applied to the polymer solution to draw out nanofibers that were collected on a ground plate as a uniform mesh. The meshes were then crosslinked to render them insoluble and conjugated with gold nanoparticles to promote biocompatibility. Characterization of the mesh was performed using scanning electron microscope, electron dispersive spectroscopy and fourier transform infrared spectroscopy. A WST-1 assay determined the potential biocompatibility. The results show that collagen/HA scaffolds were developed that were insoluble in aqueous solutions and promoted cellular attachment that could be used as a tissue engineered scaffold to promote cell growth.
胶原蛋白和透明质酸(HA)是细胞外基质的主要成分,已被用于静电纺丝中;这是一种用于组织支架的纳米纤维制造技术。胶原蛋白/HA 聚合物溶液被静电纺成一种用于骨质疏松症患者的支架材料,这些患者的骨强度降低。为了合成纳米纤维,将高电压施加到聚合物溶液上,以引出纳米纤维,这些纳米纤维被收集在接地板上形成均匀的网格。然后将网格交联使其不溶,并与金纳米粒子结合以提高生物相容性。使用扫描电子显微镜、电子分散光谱和傅里叶变换红外光谱对网格进行了表征。通过 WST-1 测定法确定了潜在的生物相容性。结果表明,开发出了不溶于水溶液的胶原蛋白/HA 支架,并促进了细胞附着,可将其用作组织工程支架以促进细胞生长。