Controlling protein adsorption on graphene for cryo-EM using low-energy hydrogen plasmas.
Controlling protein adsorption on graphene for cryo-EM using low-energy hydrogen plasmas.
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DOI:
10.1038/nmeth.2931
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发表时间:
2014-06
期刊:
影响因子:
48
通讯作者:
Passmore, Lori A.
中科院分区:
文献类型:
--
作者:
Russo, Christopher J.;Passmore, Lori A.
Despite its many favorable properties as a sample support for biological electron microscopy, graphene is not widely used because its hydrophobicity precludes reliable protein deposition. We describe a method to modify graphene using a low-energy hydrogen plasma, which reduces hydrophobicity without degrading the graphene lattice. We show that the use of plasma-treated graphene enables better control of protein distribution in ice for electron cryo-microscopy and improved image quality by reducing radiation-induced sample motion.
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