Graphene oxide single sheets as substrates for high resolution cryoTEM

Marcel W. P. van de Put, Joseph P. Patterson, Paul H. H. Bomans, Neil R. Wilson, Heiner Friedrich, Rolf A. T. M. van Benthem, Gijsbertus de With, Rachel K. O'Reilly, Nico A. J. M. Sommerdijk

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


CryoTEM is an important tool in the analysis of soft matter, where generally defocus conditions are used to enhance the contrast in the images, but this is at the expense of the maximum resolution that can be obtained. Here, we demonstrate the use of graphene oxide single sheets as support for the formation of 10 nm thin films for high resolution cryoTEM imaging, using DNA as an example. With this procedure, the overlap of objects in the vitrified film is avoided. Moreover, in these thin films less background scattering occurs and as a direct result, an increased contrast can be observed in the images. Hence, imaging closer to focus as compared with conventional cryoTEM procedures is achieved, without losing contrast. In addition, we demonstrate an ∼1.8 fold increase in resolution, which is crucial for accurate size analysis of nanostructures.
Original languageEnglish
Pages (from-to)1265-1270
Number of pages6
JournalSoft Matter
Issue number7
Early online date10 Dec 2014
Publication statusPublished - 21 Feb 2015


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