Figure 8.
Amount of HA for complete coverage of 1 g NPs given in g. (pH 3, zeta potential~−20 mV and pH 9, zeta potential~−40 mV, 0.01 M KCl) (p-value < 0.05 for Fe3O4 or Fe3O4/APTES (Ar) and Fe3O4/APTES (air)).
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