Much like a real scaffold, the nano-scaffold guides cells to grab onto it so they can begin to rebuild missing bones and tissue. “The tissue grows through tiny holes in the nano-scaffold, in the same way a vine snakes its way up a trellis,” writes Vito Pilieci of the Vancouver Sun. “after the body part has regenerated, the nano-scaffold breaks down, is absorbed into the person’s body and disappears entirely.” The nail, bone and tissue re-grew completely.As Nina points out, this sounds very much like the "anthrocyte" nanomachines that rebuilt Jaime Sommers in the rebooted version of The Bionic Woman . . .