ジャーナル: Nat Methods / 年: 2020 タイトル: Tailoring cryo-electron microscopy grids by photo-micropatterning for in-cell structural studies. 著者: Mauricio Toro-Nahuelpan / Ievgeniia Zagoriy / Fabrice Senger / Laurent Blanchoin / Manuel Théry / Julia Mahamid / 要旨: Spatially controlled cell adhesion on electron microscopy supports remains a bottleneck in specimen preparation for cellular cryo-electron tomography. Here, we describe contactless and mask-free ...Spatially controlled cell adhesion on electron microscopy supports remains a bottleneck in specimen preparation for cellular cryo-electron tomography. Here, we describe contactless and mask-free photo-micropatterning of electron microscopy grids for site-specific deposition of extracellular matrix-related proteins. We attained refined cell positioning for micromachining by cryo-focused ion beam milling. Complex micropatterns generated predictable intracellular organization, allowing direct correlation between cell architecture and in-cell three-dimensional structural characterization of the underlying molecular machinery.
集束イオンビーム - 装置: OTHER / 集束イオンビーム - イオン: OTHER / 集束イオンビーム - 電圧: 30 / 集束イオンビーム - 電流: 0.05 / 集束イオンビーム - 時間: 120 / 集束イオンビーム - 温度: 88 K / 集束イオンビーム - Initial thickness: 1000 / 集束イオンビーム - 最終 厚さ: 200 集束イオンビーム - 詳細: The value given for _em_focused_ion_beam.instrument is Thermo Fisher Aquilos. This is not in a list of allowed values {'DB235', 'OTHER'} so OTHER is written into the XML file.
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位相板: VOLTA PHASE PLATE / エネルギーフィルター - 名称: GIF Quantum LS / エネルギーフィルター - スリット幅: 20 eV