Johann Wolfgang Goethe University Frankfurt - Cryo-EM Facility, Victor-Valentin Hodirnau
"The Grids were very clean as shown in the left image and the graphene oxide monolayer is visualized in the diffraction image (right)."
"The graphene oxide coverage was as described on the website (1-3 layers). The right image shows that 2 layers of the graphene oxide are present."
"A very good overall coverage of graphene oxide even considered that some bigger holes were not fully covered. True overall coverage of > 80% (the grids were treated with 10nm colloidal gold for a better visualization of the graphene oxide film)."