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Figure 1
Suspended drop crystallization. (a) A support-free EM grid is clipped into an autogrid cartridge and mounted between the arms of the suspended drop screening tool. The sample and crystallization solution are dispensed onto the grid. (b) The chamber is immediately sealed to allow vapor diffusion. (c) The incubation chambers are inserted into a screening tray for efficient storing and monitoring of crystallization progress by light, fluorescence and UV microscopy. (d) EM grids containing crystals are retrieved from the screening tool and frozen. (e) The specimen is then interrogated by MicroED or other methods such as tomography, X-ray crystallography or general microscopy. FIB milling is optional depending on the application.

IUCrJ
Volume 10| Part 4| July 2023| Pages 430-436
ISSN: 2052-2525
https://doi.org/10.1107/S2052252523004141