首页|聚己内酯掺杂竹荪多糖的3D打印工艺及性能

聚己内酯掺杂竹荪多糖的3D打印工艺及性能

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3D打印技术在组织工程领域的应用日益受到重视,但聚己内酯(PCL)由于其亲水性和韧性的问题在此领域的应用受到了限制.为此,文中用竹荪提取的多糖物质对PCL进行复合改性,制备了多糖/PCL 3D打印支架,旨在改善其力学性能并提高其生物学性能以促进组织工程应用.通过拉伸试验表明,添加多糖后的PCL韧性明显提升且弹性模量更接近于骨组织.接触角试验表明,添加多糖后提高了表面的润湿性,接触角从92°降低至76°.经过体外细胞培养验证,添加多糖后生物相容性有所提高.研究表明,添加1%多糖后的改性支架表现出最优异的亲水性、韧性和生物相容性,且显著增强了成骨细胞的附着.
3D Printing Technology of Dictyophora Polysaccharide Doped Polycaprolactone and Properties
The application of 3D printing technology in tissue engineering has become increasingly important.However,the use of polycaprolactone(PCL)in this field is limited due to its hydrophilicity and toughness constraints.Therefore,in this study,polysaccharides extracted from bamboo fungus were combined with PCL to prepare polysaccharide/PCL 3D printed scaffolds,aiming to improve their mechanical properties and enhance their biological performance for tissue engineering applications.The tensile test show that the toughness of PCL is significantly improved after the addition of polysaccharides,and the elastic modulus approaches that of bone tissue.The contact angle test indicates that the surface wettability is increased after polysaccharide addition,with the contact angle decreasing from 92° to 76°.In vitro cell culture validation demonstrates improved biocompatibility after polysaccharide addition.The experiments show that the modified scaffold with 1%polysaccharides exhibits optimal hydrophilicity,toughness,and biocompatibility,and can significantly enhanced the attachment of osteoblasts.This study provided an important foundation and guidance for further application of PCL in tissue engineering.

polycaprolactonedictyophora polysaccharide3D printingtissue engineering scaffold

卢山、何莹、马泽宇、刘建波、秦立果、董光能、张雅利

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西安交通大学机械工程学院

西安交通大学生命科学与技术学院,陕西西安 710049

聚己内酯 竹荪多糖 3D打印 组织工程支架

国家自然科学基金面上项目国家自然科学基金面上项目陕西省重点研发计划

52375298519754582022SF-069

2024

高分子材料科学与工程
中国石油化工股份有限公司科技开发部 国家自然科学基金委员会化学科学部 高分子材料工程国家重点实验室 四川大学高分子研究所

高分子材料科学与工程

CSTPCD北大核心
影响因子:0.563
ISSN:1000-7555
年,卷(期):2024.40(8)