Nanites bond to their host on a molecular level. The technology to interact, much less control, the nanites is super advanced technology that is hard to find since half of the group of scientists that invented the technology are dead.
@@DrenixWarriorKnight Batman could obtain a sample of infected tissue to understand how it works, or perhaps borrow Mecamorph technology(same multiverse of Rex), since being beings based on technology they can control it. Or at least, Imagine a Mechamorph suit that every time Rex builds something it turns it off right back.
@@mattwo7 Maybe, maybe not, we have no proof. All I know is that Upgrade has managed to hack and control higher-Earth level technology (and Rex has a hard time hacking alien technology), just saying.
Thanks to Wayne technology and Lucius Fox, and star labs. They can make cutting edge technology with Nanite. However, evil geniuses like Lex, Luthor, and others would find dark uses for those machines Amanda Waller would even want it. Batman‘s next contingency plan should be about Robotboy or astro boy.
Several of your counterparts in other universes have started making contingency plans for the Watterson family (Gumball); I highly advise you do the same. Any one of them alone could be a threat to the Justice League, but together, they are unstoppable.