> The research, published in Nature Communications, shows that 1 gram of graphene can be sufficient for extracting nearly 2 grams of gold. As graphene costs les

> The research, published in Nature Communications, shows that 1 gram of graphene can be sufficient for extracting nearly 2 grams of gold. As graphene costs less than $0.10 per gram, this can be very profitable, with gold priced at around $70 per gram. It’s profitable provided that the rest of the process costs less than 2 grams of gold, minus 10 cents. Not to take away anything from the seemingly magical properties of graphene, but I wish the article included overhead costs. Also I’m wondering what the necessary pre-existing “traces of gold” in the solution entails, exactly.