Asymmetrical magnetic microbeads turned into micro-robots
Wednesday, July 20, 2016 - 06:51
in Physics & Chemistry
Janus was a Roman god with two distinct faces. Thousands of years later, he inspired material scientists working on asymmetrical microscopic spheres—with both a magnetic and a non-magnetic half—called Janus particles. Instead of behaving like normal magnetic beads, with opposite poles attracting, Janus particle assemblies look as if poles of the same type attract each other.