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首页> 外文期刊>Polymer Composites >Surface characterization of polycaprolactone and carbonyl iron powder composite fabricated by solvent cast 3D printing for tissue engineering
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Surface characterization of polycaprolactone and carbonyl iron powder composite fabricated by solvent cast 3D printing for tissue engineering

机译：组织工程溶剂铸造3D印刷制备的聚己内酯和羰基铁粉复合物的表面表征

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摘要

In tissue engineering applications, various synthetic biodegradable polymers have got attention due to their excellent physical as well as biological properties. Polycaprolactone (PCL) has been identified as one of the best biocompatible polymers, which have wide applications in biomedical engineering. The surface properties of PCL have limited its utilization in tissue engineering. The researchers have also focused on the development of the PCL blends to enhance the surface characteristics. In the present study, carbonyl iron powder (CIP) reinforced PCL blends were fabricated by the solvent cast 3D printing (SC-3DP) technique. The characterization techniques such as X-ray diffraction, atomic force microscopy, and surface energy measurement by contact angle were used. The surface free energy of all the surfaces with their polar components was determined by Owens Wendt method. The fibroblasts cell responses were also examined for the assessment of biological properties. The results revealed that the increase in the percentage of CIP in the PCL matrix enhanced the value of surface free energy. The CIP reinforcement influenced the topography and surface roughness of the prepared composites. The change in surface properties affected the cell interactions on the surfaces, as investigated by cell viability test. The cell adhesion and viability were improved at a lower percentage of CIP.
机译：在组织工程应用中，各种可生物降解的合成聚合物因其优异的物理和生物性能而受到关注。聚己内酯（PCL）是生物相容性最好的聚合物之一，在生物医学工程中有着广泛的应用。PCL的表面性质限制了其在组织工程中的应用。研究人员还专注于开发PCL共混物，以增强表面特性。本研究采用溶剂浇铸3D打印（SC-3DP）技术制备了羰基铁粉（CIP）增强PCL共混物。采用了X射线衍射、原子力显微镜和接触角表面能测量等表征技术。用欧文斯-温特法测定了所有表面及其极性组分的表面自由能。为了评估生物学特性，还检测了成纤维细胞的反应。结果表明，在PCL基体中，CIP含量的增加提高了表面自由能的值。CIP增强对所制备复合材料的形貌和表面粗糙度有影响。表面性质的变化影响了表面上的细胞相互作用，这是通过细胞活力测试研究的。在较低的CIP百分比下，细胞粘附和存活率得到改善。

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