Cryofib milling large tissue samples for cryo-electron tomography

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SUMMARY

    Overall workflow for high‑efficiency milling of large tissue samples. The initial thickness for cryoFIB determines the milling time, which increases significantly with the initial thickness; 0.5-1.5 h are required for samples thinner than 10 μm19,20, and several ­hours9,21 or even ­days22 may be required for multicellular organisms that are tens of microns thick. The ion beam current is a key factor that determines the milling speed. The first step is the pre-sectioning, which uses a mechanical method to slice the initial sample to a workable thickness for . . .

     

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