中国组织工程研究2015，Vol.19Issue(21)：3371-3376,6.DOI:10.3969/j.issn.2095-4344.2015.21.017
碳纤维-聚乳酸-聚乙二醇复合支架的制备及性能检测
Preparation and performance detection of carbon fiber-polylactic acid-polyethylene glycol composite scaffold
周常艳 1周庆焕 2边竟 1陈克 1陈文1
作者信息
- 1. 十堰市太和医院(湖北医药学院附属医院)骨科一病区,湖北省十堰市 442000
- 2. 湖北医药学院护理学院,湖北省十堰市 442000
- 折叠
摘要
Abstract
BACKGROUND:The mechanical performance and cytocompatibility of polylactic acid-polyethylene glycol (PLA-PEG) scaffold is poor via long-term experiments; therefore, other materials are added to the scaffold in order to improve its biological activity and mechanical properties. OBJECTIVE:To investigate the preparation process of carbon fiber (CF)-PLA-PEG scaffold, and to test its performance. METHODS:Modified CF-PLA-PEG composite scaffolds were prepared using solution injection-particle leaching method. Ultra-structure, porosity, water-absorbing quality, degradation rate and mechanical properties of CF-PLA-PEG composite scaffolds and PLA-PEG scaffolds were compared. Rat osteoblasts were co-cultured with these two kinds of scaffoldsin vitro, and the cel adhesion rate was detected by precipitation method after 12 hours. Cel counting was detected using MTT method to determine the cel proliferation at culture days 1, 3, 5, 7, 9. RESULTS AND CONCLUSION:The surface structure of PLA-PEG distributed uniformly, and the aperture was (404.0±10.5) μm. The carbon fiber surface of modified CF-PLA-PEG composite scaffolds had a lot of longitudinal grooves, the surface structure also distributed uniformly, and the aperture was (433.0±3.0) μm. Difference in scaffold aperture was of significance between the two groups (P < 0.05). The porosity, water-absorbing quality, elasticity modulus, compressive strength, degradation rate, cel adhesion rate and cel growth rate of CF-PLA-PEG were better than those of PLA-PEG (P < 0.05). These results show that the CF-PLA-PEG scaffolds have good mechanical property and cel compatibility.关键词
生物材料/骨生物材料/骨组织工程/聚乳酸-聚乙二醇支架/改性碳纤维-聚乳酸-聚乙二醇支架分类
医药卫生引用本文复制引用
周常艳,周庆焕,边竟,陈克,陈文..碳纤维-聚乳酸-聚乙二醇复合支架的制备及性能检测[J].中国组织工程研究,2015,19(21):3371-3376,6.
