Iron oxide-based magnetic nanoparticles synthesis

Principle in the Synthesis of Iron Oxide-Based Magnetic Nanoparticles. .. 316... 

Solution phase chemical synthesis is a convenient way for making surfactant coated magnetic nanoparticles, as described in various reviews [12-18]. Monodisperse Co nanoparticles with standard deviation less than 10% are synthesized by decomposition of Co2(CO)8 [19-22] or Co(rj3-C8Hi3X n4-C8Hi2) [23] and reduction of cobalt salt [24,25] in the presence of oleic acid and trialkylphosphine, or trialkylphosphine oxide, or alkylamine. Monodisperse iron nanoparticles are normally prepared from decomposition of Fe(CO)5 [26-28]. However, metallic iron-based particles from this decomposition procedure are difficult to characterize due to the chemical instability. A recent synthesis using decomposition of Fe[NSiMe3)2]2 offers a promising approach to monodisperse Fe nanocrystals [29]. 

Recently, great attention has been drawn towards the synthesis and uses of polymer based nanomagnetic composites as they have become a poweifid tool in industries, science, and medicine. Agarwal et al. (2012) studied the fabrication and characterization of iron oxide filled polyvinyl py rrolidone nanocomposites comprising iron oxide nanoparticles as filler and polyviityl pyrrohdone as polymer shell. These nanocomposites were synthesized through free radical polymerization under microwave irradiation. The unique magnetic, catalytic and biocompatible properties of nanomagnetic polymer composites (MFCs) make it quite attractive for use in a variety of areas. 

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