Algae-based nanobots could diagnose you from the inside

Algae-based nanobots could diagnose you from the inside

The bots have a magnetic iron-oxide exterior that both lets doctors control how quickly they degrade and makes it possible to guide them using magnetic resonance imaging. And since they have naturally fluorescent insides, they’re easy to spot. They’d only have to stay in your body as long as necessary, and they’d waste less time …