Preparation and shape control of multiple-arm magnetic particles

Multiple-arm magnetic CuFe2O4 particles have been synthesized via a simple one-step solution-phase route at the presence of ethylene glycol (EG) ligands, which plays a key role for the shape control of the particle. At low EG content, hexa-arm CuFe2O4 particles with average arm diameter 50 nm and length 400 nm were obtained. Furthermore, a possible mechanism of shape evaluation process of these magnetic particles is discussed.