Magnetite nanosized

Table 14.2 summarizes typical phonons available in the literature for CoFe204 nanoparticles, compared with that obtained for CoFe204 crystal. As in the case of magnetite, more Raman modes are detected in nanosized samples [44] than in correspondent crystals. Furthermore, some observed phonons possess the characteristics of maghemite vibrational modes, which implies that a possible oxidation process occurs. 

The essential element iron is not only utilized by all living systems but bacteria materially assist the nucleation of minerals that contain ferric and ferrous forms. After a brief consideration of the roles of iron in bacterial systems, we discuss the magnetotactics, the bacteria that biomineralize with euhedral nanosized particles of magnetite, Fc304, and greigite, Fe3S4. 

Gotic, M., Jurkin, T., and Music S. 2007. Factors that may influence the micro-emulsion synthesis of nanosize magnetite particles. Colloid Polym. Sci. 285 793-800. 

Creation of a biocompatible covering on tbe surface of nanosized magnetite... 

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