首页> 外文会议>Frontiers in ultrafast optics: biomedical, scientific, and industrial applications XVII >Fabrication of 3D micro-structured scaffolds by direct laser writing in pre-polymers for in vitro and in vivo studies
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Fabrication of 3D micro-structured scaffolds by direct laser writing in pre-polymers for in vitro and in vivo studies

机译:通过直接在预聚物中进行激光写入来制备3D微结构支架,用于体外和体内研究

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摘要

We present the results of fabricating micro-structured macro-constructs for tissue engineering applications by using direct laser writing in pre-polymers (DLW-PP). The limiting factors for rapid construction of millimeter sized scaffolds, including the choice of material, software and hardware, as well as geometry, are discussed. We demonstrate that by using the hybrid inorganic-organic pre-polymer SZ2080 and employing a laser system which can combine the movement of linear motion stages with scanners, the structuring throughput reaching up to 51300 μm~3/s can be achieved maintaining structural elements with 15 μm resolution. This allows to construct up to 30 scaffolds overnight with measurements reaching 1515×1515×195 μm~3 - big enough for a surgeon to handle - and enables serial fabrication of such structures required for statistical tissue formation studies. Also, the versatility of DLW-PP technique is demonstrated by presenting the fabricated scaffolds with different pore shapes and sizes as well as manufactured out of pure and photo-sensitized SZ2080 material.
机译:我们介绍通过使用预聚物中的直接激光写入(DLW-PP)来制造用于组织工程应用的微结构宏结构的结果。讨论了快速建造毫米大小的脚手架的限制因素,包括材料,软件和硬件以及几何形状的选择。我们证明,通过使用杂化的无机-有机预聚物SZ2080并采用可以将线性运动平台的运动与扫描仪结合起来的激光系统,可以保持结构元素达到51300μm〜3 / s的结构通量。 15μm分辨率。这允许过夜构造多达30个支架,测量尺寸达到1515×1515×195μm〜3-足够外科医生处理-并能够进行此类结构的连续制造,以进行统计组织形成研究。此外,通过展示具有不同孔形状和大小以及由纯光敏SZ2080材料制成的支架,可以证明DLW-PP技术的多功能性。

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