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Graphene oxide single sheets as substrates for high resolution cryoTEM
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van de Put, Marcel W. P., Patterson, Joseph P., Bomans, Paul H. H., Wilson, Neil R., Friedrich, Heiner, van Benthem, Rolf A. T. M., de With, Gijsbertus, O'Reilly, Rachel K. and Sommerdijk, Nico A. J. M. (2015) Graphene oxide single sheets as substrates for high resolution cryoTEM. Soft Matter, 11 (7). pp. 1265-1270. doi:10.1039/c4sm02587c ISSN 1744-683X.
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Official URL: http://dx.doi.org/10.1039/C4SM02587C
Abstract
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.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
Journal or Publication Title: | Soft Matter | ||||||||
Publisher: | Royal Society of Chemistry | ||||||||
ISSN: | 1744-683X | ||||||||
Official Date: | 21 February 2015 | ||||||||
Dates: |
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Volume: | 11 | ||||||||
Number: | 7 | ||||||||
Page Range: | pp. 1265-1270 | ||||||||
DOI: | 10.1039/c4sm02587c | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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