Graphene Oxide is used in vaccines to sequence DNA.#NoVaccine pic.twitter.com/g8h3zK27In— Nunya Biz (@NunyaBi34683710) July 23, 2021
CRISPR
.
That might be. But the graphene is not itself a part of messenger RNA, nor of spike proteins, nor of prions.
The most charitable explanation I can give is the person was speaking off the cuff to laypeople, or they are not a native English speaker.
Otherwise, they’re lying.