Assuming they "tag" a cancer cell, (I gather) the cell would be essentially cooked to death by the RF, and then swept out of the body with other dead cells. So hopefully the nanos would still be attached somewhere to the former cell & excreted along with dead cells.
I'm basically just guessing here though.
You might be able to use it on chloresterol as well.
You might be able to use it on chloresterol as well.