Siimon Kaido, Reemann Paula, Põder Annika, Pook Martin, Kangur Triin, Kingo Külli, Jaks Viljar, Mäeorg Uno, Järvekülg Martin
Institute of Physics, University of Tartu, Estonia.
Institute of Biomedicine and Translational Medicine, University of Tartu, Estonia.
Mater Sci Eng C Mater Biol Appl. 2014 Sep;42:538-45. doi: 10.1016/j.msec.2014.05.075. Epub 2014 Jun 6.
Thermally cross-linked glucose-containing electrospun gelatin meshes were studied as possible cell substrate materials. FTIR analysis was used to study the effect of glucose on cross-linking reactions. It was found that the presence of glucose increases the extent of cross-linking of fibrous gelatin scaffolds, which in return determines scaffold properties and their usability in tissue engineering applications. Easy to handle fabric-like scaffolds were obtained from blends containing up to 15% glucose. Maximum extent of cross-linking was reached at nearly 20% glucose content. Cross-linking effectively resulted in decreased solubility and increased resistance to enzymatic degradation. Preliminary short-term cell culture experiments indicate that such thermally cross-linked gelatin-glucose scaffolds are suitable for tissue engineering applications.
对热交联含葡萄糖的电纺明胶网作为可能的细胞基质材料进行了研究。采用傅里叶变换红外光谱(FTIR)分析来研究葡萄糖对交联反应的影响。结果发现,葡萄糖的存在增加了纤维状明胶支架的交联程度,这反过来又决定了支架的性能及其在组织工程应用中的适用性。从含高达15%葡萄糖的共混物中获得了易于处理的织物状支架。在葡萄糖含量接近20%时达到最大交联程度。交联有效地导致溶解度降低和对酶降解的抗性增加。初步的短期细胞培养实验表明,这种热交联明胶-葡萄糖支架适用于组织工程应用。