CSTET of WI-38 cells and HDMECs was performed as described previously (44 (link)). Briefly, bright-field STEM tomograms of both cell types were collected on a Tecnai F20 microscope (Thermo Fisher Scientific, FEI) at 200 kV, recorded in 2° increments between −60° and +60° tilts. Spatial sampling was set between 1 and 4 nm per pixel. Doses were limited to 1 to 3 e2.
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