Graphene oxide: structural analysis and application as a highly transparent support for electron microscopy.
We report on the structural analysis of graphene oxide (GO) by transmission electron microscopy (TEM). Electron diffraction shows that on average the underlying carbon lattice maintains the order and lattice-spacings of graphene; a structure that is clearly resolved in 80 kV aberration-corrected atomic resolution TEM images. These results also reveal that single GO sheets are highly electron transparent and stable in the electron beam, and hence ideal support films for the study of nanoparticles and macromolecules by TEM. We demonstrate this through the structural analysis of physiological ferritin, an iron-storage protein.
Wilson
Neil R
NR
Department of Physics, University of Warwick, Coventry CV4 7AL, UK. Neil.Wilson@warwick.ac.uk
Pandey
Priyanka A
PA
Beanland
Richard
R
Young
Robert J
RJ
Kinloch
Ian A
IA
Gong
Lei
L
Liu
Zheng
Z
Suenaga
Kazu
K
Rourke
Jonathan P
JP
York
Stephen J
SJ
Sloan
Jeremy
J
D005293:Ferritins / Q000737:chemistry; D006046:Gold / Q000737:chemistry; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D014961:X-Ray Diffraction
D010087:Oxides; D006046:Gold; D005293:Ferritins