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相关概念视频

Crystal Density01:19

Crystal Density

The crystal lattice structure of a material allows us to determine how many molecules exist in its unit cell. With this information, alongside the unit-cell parameters - three distance parameters (a, b, c) and three angular parameters (α, β, γ).Density (ρ) = (Z × M) / (a × b × c × NA)where:Z is the number of formula units per unit cellM is the molar mass of the substancea, b, and c are the edge lengths of the unit cellNA is Avogadro’s numberFor a simple cubic lattice, atoms are located only at...

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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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用光子晶体成像细胞力量.

Qiwei Li1, Zaozao Chen1,2, Ying Zhang1

  • 1State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 210096, Nanjing, Jiangsu, China.

Nature communications
|November 14, 2023
PubMed
概括

研究人员开发了光子晶体细胞力显微镜 (PCCFM) 以可视化和量化高速度和吞吐量的细胞力. 这种新方法克服了现有活细胞成像和多尺度分析技术的局限性.

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科学领域:

  • 生物物理学的生物物理.
  • 细胞生物学 细胞生物学
  • 材料科学 材料科学 材料科学

背景情况:

  • 现有的可视化和量化细胞力量的方法在活细胞成像,吞吐量和多尺度分析方面是有限的.
  • 这些局限性阻碍了细胞力研究及其实际应用的进展.

研究的目的:

  • 开发一种新的显微镜技术,用于高速,宽视场成像和细胞力量的量化.
  • 为了克服当前细胞力可视化和分析方法的局限性.

主要方法:

  • 发展光子晶体细胞力显微镜 (PCCFM).
  • 使用光子晶体水凝基板 (PCS),将微纳米变形转化为颜色变化.
  • 启用无参考,高速 (大约. 20 fps) 在1.3mm x 1.0mm的视野中成像.

主要成果:

  • PCCFM允许在现场可视化和量化高吞吐量的垂直电池力.
  • 经过长期,跨度监测能力的证明,从亚细胞焦点粘附到组织水平的细胞板.
  • 在不需要外部引用的情况下实现了高速成像.

结论:

  • PCCFM是一个强大的新工具,用于推进细胞力研究.
  • 该技术为细胞力测量提供了速度,吞吐量和规模的显著改进.
  • 为了解细胞力学和组织发育提供了新的可能性.