Studying interactions between individual micromotors can help in understanding the fundamental principles of matter in dynamic steady states far from equilibrium. In turn, this can give insights into transport and assembly in biological systems. Most studies in this field have focused on simple rod shapes, but an investigation of metallic nanorods with magnetic tips has revealed new types of assembly, disassembly and transport behaviour in water. The experiments also demonstrated a level of control over this behaviour using ultrasound…..
http://nanotechweb.org/cws/article/tech/58752