Mind-controlled nanobots release drugs inside cockroaches

While that sounds insanely convoluted, the aim is to actually help humans. If a schizophrenia patient is about to have a violent episode, for instance, an EEG could trigger the release of powerful drugs. That way, they'd only get them when needed, minimizing harmful side effects. The nanobots injected into the roaches are made from so-called DNA origami that's natural and easy to program. They're also fitted with iron oxide nanoparticle "locks" that open and release drugs when exposed to an EEG-controlled electromagnet.