Live Science
By Patrick Pester published September 5, 2025
Researchers have created magnetically-controlled “sperm bots” that they can pilot around and monitor in real time.
These tiny microrobots are bull sperm cells coated in magnetic nanoparticles. Researchers haven’t tested them inside a real organism, whether cow or human, yet, but they demonstrated that they can control the sperm bots inside a life-sized anatomical model of the female human reproductive system and track their progress with X-rays.
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