Transfer-printing of single DNA molecule arrays on graphene for high-resolution electron imaging and analysis.
Transfer-printing of single DNA molecule arrays on graphene for high-resolution electron imaging and analysis.
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DOI:
10.1021/nl202219w
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发表时间:
2011-10-12
期刊:
影响因子:
10.8
通讯作者:
Craighead HG
中科院分区:
文献类型:
--
作者:
Cerf A;Alava T;Barton RA;Craighead HG
Graphene represents the ultimate substrate for high-resolution transmission electron microscopy, but the deposition of biological samples on this highly hydrophobic material has until now been a challenge. We present a reliable method for depositing ordered arrays of individual elongated DNA molecules on single-layer graphene substrates for high resolution electron beam imaging and electron energy loss spectroscopy analysis. This method is a necessary step towards the observation of single elongated DNA molecules with single base spatial resolution to directly read genetic and epigenetic information.
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