Additional file 1.

Figures S1 to S5 and Tables S1 to S3. Figure S1. (a) X-ray diffraction pattern and (b) magnetic hysteresis curve of MNPs. S2. Derivative weight curve of pure oleic acid. S3. FT-IR spectra of pure oleic acid and MNPs (detailed analysis is presented in Table S1). S4. (a) Derivative weight curve of Fe-oleate precursor, (b) illustration for the interactions of oleic acid in Fe-oleate precursor. S5. Representative images of MNCs solution in the cubic cell according to the time of 0 (immediately), 6 and 24 hours. Table S1. FT-IR analysis of Figure S3. S2. Infrared frequencies and band assignments for the iron-carboxylate complexes. S3. Detailed values for the size and r2 of MNCs presented in Figure 3a, b.

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Kim et al. Nanoscale Research Letters 2013 8:104   doi:10.1186/1556-276X-8-104