Synthesis and Characterization of Superparamagnetic Maghemite Nanoparticle
In this paper, the ferrous salt and ferric salt were used as raw materials to prepare magnetite(Fe3O4)nanoparticles as precursors，and then superparamagnetic maghemite (γ-Fe2O3) nanoparticles were obtained from the precursors via high temperature pyrolysis for further oxidation. The particles properties and structure are characterized by X-Ray powder diffraction (XRD), energy dispersive spectroscopy (EDS) and magnetic property measurement system (MPMS) with superconducting quantum interference device (SQUID) magnetometry. The results showed that the direct oxidization of Fe3O4 at high temperature to prepare superparamagnetic γ-Fe2O3 nanoparticles was facile. This method is of practical significance for magnetic nanoparticle applications for bioconjugation, target carriers and biosensing purposes.
maghemite superparamagnetism nanoparticle pyrolysis
Jing-Ke Huang Wei Wu Rong Hu Quan-Guo He
Green Packaging and Biological Nanotechnology Laboratory, Hunan University of Technology, Zhuzhou, Hunan Province 412008, China
国际会议
The 5th International Forum on Post-genome Technologies(5IFPT)(第五届国际后基因组生命科学技术学术论坛)
苏州
英文
2007-09-10（万方平台首次上网日期，不代表论文的发表时间）