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相关概念视频

Electron Microscope Tomography and Single-particle Reconstruction01:07

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
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Automated 3D Optical Coherence Tomography to Elucidate Biofilm Morphogenesis Over Large Spatial Scales
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评估3D打印生物分离结构使用多长度尺度断层扫描.

Thomas F Johnson1, Mariachiara Conti2, Francesco Iacoviello3

  • 1Department of Biochemical Engineering, University College London, Bernard Katz, London, WC1E 6BT, UK.

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概括

X射线计算机断层扫描可视化了3D打印的陀螺体,用于生物分离. 这种详细的成像揭示了多孔结构和多个尺度的打印准确性,有助于流动模拟.

关键词:
通过3D打印打印3D打印.流量模拟的流量模拟.甲状腺瘤是什么样的扭曲性 扭曲性的在X射线成像中使用X射线成像.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 生物技术是生物技术.
  • 图像技术技术的成像技术

背景情况:

  • 3D打印的陀螺仪在生物分离应用中具有前景.
  • 描述它们复杂的内部结构对于优化性能至关重要.
  • 射线计算机断层扫描提供了高分辨率成像能力.

研究的目的:

  • 用X射线计算机断层扫描来可视化和描述3D打印的状腺结构.
  • 评估打印准确度和分析内部孔径几何在多个长度尺度.
  • 提供用于几何分析和生物分离流动模拟的数据.

主要方法:

  • 制造甲基酸盐3D打印的陀螺仪,其特征尺寸为500微米,300微米和200微米.
  • 使用两台扫描仪进行X射线计算机断层成像,像素大小从5μm到16nm不等.
  • 图像细分用于材料和空隙相位分析,几何分析和流动模拟.

主要成果:

  • 从宏观到纳米孔尺度的状腺结构的详细可视化.
  • 打印样品与CAD设计的比较显示了打印准确度.
  • 平均孔径为45%,曲率为2.52,平均孔径大小为793nm.
  • 模拟材料的扩散性被确定为2.17 × 10−11 m2s−1.1.

结论:

  • X射线计算机断层扫描对于对3D打印的陀螺体进行生物分离的特征是有效的.
  • 这项研究提供了关键的几何和结构数据,以优化状腺性能.
  • 这些发现支持在先进的生物分离应用中使用这些结构.