直接墨水写作可持续的多功能可生物降解的多孔铁蛋脚手架
Niko E Putra1, Raphaëlle Youf2, Vahid Moosabeiki1
1Department of Biomechanical Engineering, Faculty of Mechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, the Netherlands.
Acta biomaterialia
|June 28, 2025
概括
这项研究开发了3D打印的铁蛋复合脚手架,使用骨修复的废物材料. 这些可持续的生物材料显示出出色的机械性能,促进骨生长,并对抗感染.
科学领域:
- 生物材料工程 生物材料工程
- 组织工程是组织工程.
- 可持续的医疗保健 可持续的医疗保健
背景情况:
- 医疗设备对医疗保健的碳足迹做出了重大贡献.
- 来自回收废物的可持续生物材料对于组织工程的进步至关重要.
- 可生物降解的植入物减少了二次手术,并发症和医疗保健浪费.
研究的目的:
- 使用回收的蛋废物开发多功能,可生物降解的骨头替代品.
- 通过增材制造来制造多孔的铁蛋复合脚手架.
- 评估开发的脚手架的骨质,生物降解,机械和抗菌特性.
主要方法:
- 使用直接墨水写作 (DIW) 制造有孔的铁蛋脚手架.
- 在增材制造后进行热处理以形成Ca2Fe2O5阶段.
- 测试孔隙性,生物降解率,机械完整性,阿帕形成,骨质基因表达和抗菌活性.
主要成果:
- 70%的多孔支架具有每年0.11毫米的生物降解率.
- 机械性能与脊椎骨相似,可以承受300万次负载周期.
- 已证明具有形成 apatite 的能力,支持骨前细胞的增殖和分化.
- 与Ti6Al4V.V.相比,对骨质基因表达 (骨质,骨质卡尔) 的升级.
- 对黄金葡萄球菌 (Staphylococcus aureus) 具有显著的杀菌活性,并延迟了生物膜的形成.
结论:
- 由DIW制造的Fe-蛋复合材料支架为可持续的骨科生物材料提供了特殊的多功能性.
- 这些支架代表了可生物降解的骨头替代品的有希望的进步,具有增强的生物功能.
- 废物材料的使用有助于建立一个更可持续的医疗保健部门.
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