Razieh berah - S student of Research Laboratory of Polymer, Faculty of chemical engineering, Babol Noshirvani University of Technology, Babol, Iran
Mohsen ghorbani - Head of Research Laboratory of Polymer, Faculty of chemical engineering, Babol Noshirvani University of Technology, Babol, Iran
Yaser Sadeghi - M.S student of Research Laboratory of Polymer, Faculty of chemical engineering, Babol Noshirvani University of Technology, Babol, Iran

The synthesis of magnetic nanoparticles has significant interest for both fundamental researches and applications. Because the magnetic properties strongly depend on condition of aggregation. In this study, Biodegradable maghemite nanoparticles were synthesized by inexpensive and easy co-precipitation method base on precipitation reaction of ferrous and ferric salts followed by heat treatment at different temperatures ranging from 60 to 90 ₒC for. The samples were analyzed by vibrating sample magnetometer, scanning electron microscopy and energy dispersive X-spectroscopy.The results indicated that the nanoparticles exhibit maghmite characteristics with a relatively coercivity of 16Oe have the maximum saturation magnetization of 63.4 emu/g and have a particle size 40nm.

: nanoparticle, magnertic, maghmite, co-precipitation method