
Receptor binding and complex structures of human ACE2 to spike RBD from omicron and delta SARS-CoV-2
Cell. 2022 Feb 17;185(4):630-640.e10.
To overcome the bottleneck in cryo-EM sample preparation, Shuimu developed a series of graphene coated grids — GraFuture™, using them to achieve a better reproducibility and efficiency of cryo-EM sample preparation.
Cryo-EM sample preparation using traditional support grids presents:
Air-water interface absorption
Badly preferred orientation
Sample concentration threshold (>1μM)
Significant background noise
Difficulty of reconstructing "small" macromolecules

Graphene Oxide Support Film TEM Grid
Reduced Graphene Oxide Support Film TEM Grid
GraFuture™ grids could be used with the following advantages:

≤ 5 layers
thickness
GO / RGO
type
≥ 70%
coverage




Cell. 2022 Feb 17;185(4):630-640.e10.

Nature. 2022 Jul;607(7918):399-406.

Nature. 2022 Apr;604(7905):377-383.

Science. 2021 Jan 8;371(6525):eabe8863.
To overcome the bottleneck in cryo-EM sample preparation, Shuimu developed a series of graphene coated grids — GraFuture™, using them to achieve a better reproducibility and efficiency of cryo-EM sample preparation.
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