Submicron Structure in Biocompatible Ferrofluids
نویسندگان
چکیده
This paper was intended as a comparative study between the microstructural features of two water-ferrofluids intended for biological applications. In both cases the ferrophase was prepared by auto-catalytic reaction between ferrous and ferric salts resulted in magnetite and some maghemite precipitates. The difference is given by the stabilizer molecule: tetramethyl ammonium hydroxide and, respectively citric acid. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) (fig.1) have been utilized as ferrophase size investigation. Histograms of ferrophase diameter distribution have been drawn. Comparative analysis was accomplished by means of box-plot graphical technique.
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