National Natural Science Foundation of China (NSFC)
中国
引用
ジャーナル: Proc Natl Acad Sci U S A / 年: 2024 タイトル: Graphene sandwich-based biological specimen preparation for cryo-EM analysis. 著者: Jie Xu / Xiaoyin Gao / Liming Zheng / Xia Jia / Kui Xu / Yuwei Ma / Xiaoding Wei / Nan Liu / Hailin Peng / Hong-Wei Wang / 要旨: 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 ...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.