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强大的全控纳米液层用于高分辨率液细胞电子显微镜.

Tyler S Lott1, Ariel A Petruk1, Nicolette A Shaw1

  • 1The Ultrafast electron Imaging Laboratory (UeIL), Department of Chemistry and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, 200 University Ave. W, N2L 3G1, Waterloo, Ontario, Canada. gsciaini@uwaterloo.ca.

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科学领域:

  • 电子显微镜电子显微镜
  • 纳米技术 纳米技术
  • 生物物理学的生物物理.

背景情况:

  • 液体细胞电子显微镜 (LCEM) 面临着由于真空中窗口凸起而导致的可重现性和图像质量的挑战.
  • 现有的LCEM方法难以在广的视野中提供高分辨率.

研究的目的:

  • 引入一种新的LCEM方法,可以消除窗户凸起,以改善成像.
  • 为了实现高分辨率,高通量观测未染色的生物标本在其本土的液态环境.

主要方法:

  • 一个形状工程纳米流体细胞架构的开发.
  • 实施无空气滴滴造样品装载技术.
  • 利用这些方法实现了强大的,无凸的成像条件.

主要成果:

  • 在整个观看窗口中演示了高分辨率成像.
  • 获得了足够的对比度来观察未染色的脂质体.
  • 能够对液体层厚度进行定量测量.

结论:

  • 新的LCEM方法提供可重现的,高质量的液体样本成像.
  • 这种技术可以在接近本地条件下制作生物标本的高分辨率电影.
  • 这种方法为研究纳米规模的动态生物过程开辟了新的途径.