"...You can even graft on groups that make some sites of the graphene nano particle hydrophyllic and some hydrophobic."
Great, so you can induce primary structure (at least) onto the sheets; better hope you've modeled the conformational space well, or *thoroughly* tested it, or some unforeseen biological condition will have it changing shape and therefore behaviour/effect on the body without warning.
Sheesh, even proteins, while being created, need helper proteins to help guide/form them into the active, desired conformation, it's not just a matter of the raw amino acid sequence.
Oh, see also "prions". Wondering about the rumors of one of the doctors saying the beta sheet in the spike protein would induce prion formation in the brain. I don't necessarily think that's been demonstrated yet, but would the graphene oxide have the ability to denature various proteins along the way? Yikes.