Now, in a new study published in the journal Science Robotics, researchers led by ICREA Research Professor Samuel Sánchez and his team "Smart Nano-Bio-Devices" at the Institute for Bioengineering of Catalonia (IBEC), together with the group Radiochemistry & Nuclear Imaging Lab from CIC biomaGUNE lead by Jordi Llop and the Universitat Autònoma de Barcelona (UAB), have managed to observe in vivo the collective behavior of a large number of autonomous nanorobots inside the bladder of living mice using radioactive isotope labeling. "The fact of having been able to see how nanorobots move together, like a swarm, and of following them...