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. Author manuscript; available in PMC: 2014 May 12.
Published in final edited form as: Nat Nanotechnol. 2013 Sep 29;8(10):735–741. doi: 10.1038/nnano.2013.194

Figure 1. GO chip and functionalisation/characterisation of GO.

Figure 1

a, Schematic diagram of the GO chip. b, Schematic showing the conjugation chemistry between functionalised GO nanosheets and EpCAM antibodies. GO nanosheets are adsorbed onto the gold pattern. The GMBS crosslinker binds to PL-PEG-NH2 onto the GO nanosheets. The NeutrAvidin is connected to the GMBS and biotinylated EpCAM. c, Preparation procedures of the functionalized GO. d, SEM image of gold patterns. Inset: magnified SEM image of adsorbed GO nanosheets on gold patterns.