the Ultimates Tony Stark has stuff to do with nanites, he tried to use it on Banner (it actually worked) until something happened and it didn't anymore.

Sci-fi authors are making it up just as much as you would be, but they do tend to be good at coming up with jargon and ideas you can run with.

That? Is a good idea. I just need to muck on through nineties canon, and then reaquaint myself with the naughties. Oy.