Figure 6.

Magnetization curves of the Fe3O4@SiO2 (a) and DTH-Fe3O4@SiO2 (b). Inset shows that DTH-Fe3O4@SiO2 was dispersed to an external magnet in ethanol.

Wang et al. Nanoscale Research Letters 2012 7:86   doi:10.1186/1556-276X-7-86
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