s Abedini Khorrami - Department of Chemistry, Azad University, N orth Tehran Branch, Tehran, Iran
q Sadr Manuchehri - Department of Chemistry, Azad University, N orth Tehran Branch, Tehran, Iran
s.s madani - Department of Chemistry, Azad University, N orth Tehran Branch, Tehran, Iran
h. bakhtiari - Department of Chemistry, Azad University, N orth Tehran Branch, Tehran, Iran

Exploiting the unique magnetic properties of CoFe۲O ۴ nanoparticles (e.g., t unable coerc ivity, large anisotropy, moderate s aturation m agnetization, site speci¿ c and stron g binding to the serum albumin proteins etc.) many intere sting biome dical applications are developed e.g. drug delivery, DNA separation, Magnetic R esonance Im age (MRI) contrast and hyperthe rmia. Furthe r,due to the strong spin orbita l angular momentum (L-S) coupling, Co Fe۲O۴ nanoparticles are highly stable up to ۱۰ ۰۰ °C and h ave good w ear resistan ce and elec trical insulation Property [۱-۳].Many attempts ha ve been m ade to design and synth esize vario us MFe۲O۴ nanostructures in order to explore th eir properties and poten tial applications[۱]. Co balt ferrite nanoparticles have been s ynthesized by a number of methods, including sol-gel [۴], sol–gel aut o-combustion [۵], hydrothermal [۶-۹], co-precipitation [۱۰-۱ ۱], and microwave synthesis [۱۲].In this work cobalt ferrite Nanoparticles synthesized via Sol-gel Autocombustion and Sol-gel microwave method and next S tructure, m orphology a nd magnetic properties investigate.

Microwave, Sol-gel Autocombustion, Co balt Ferrite, Nanoparticle.