nature video | Making a microscopic swarm move through a maze @NatureVideoChannel | Uploaded August 2018 | Updated October 2024, 1 week ago.
A microscopic swarm, just a few millimetres in length, can move through a maze with a just few clicks of a mouse. The swarm is formed from millions of magnetic nanoparticles suspended in a rapidly oscillating magnetic field. Researchers in China have been testing the new technology by altering the magnetic field to move the swarm around various obstacles.

Read the original research paper at nature.com/articles/s41467-018-05749-6