Graphene sandwich-based biological specimen preparation for cryo-EM analysis.
Proc Natl Acad Sci U S A
; 121(5): e2309384121, 2024 Jan 30.
Article
in En
| MEDLINE
| ID: mdl-38252835
ABSTRACT
High-quality specimen preparation plays a crucial role in cryo-electron microscopy (cryo-EM) structural analysis. In this study, we have developed a reliable and convenient technique called the graphene sandwich method for preparing cryo-EM specimens. This method involves using two layers of graphene films that enclose macromolecules on both sides, allowing for an appropriate ice thickness for cryo-EM analysis. The graphene sandwich helps to mitigate beam-induced charging effect and reduce particle motion compared to specimens prepared using the traditional method with graphene support on only one side, therefore improving the cryo-EM data quality. These advancements may open new opportunities to expand the use of graphene in the field of biological electron microscopy.
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Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Graphite
Language:
En
Journal:
Proc Natl Acad Sci U S A
Year:
2024
Document type:
Article
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