Figure 4

Heat released with respect to time under AC magnetic field (A) Core, Core-shell Fe3O4 @ Fe3O4 particles after addition of 1 mL of ferric oleate for 1 h duration of heating (B), 5 mL of ferric oleate for 1 h (C) and 5 mL of ferric oleate for 8 h (D). Dotted lines denote hyperthermia temperature with time. Particles are coated with aspartic acid. All samples are of MNPs-aspartic acid. However, MNPs-thioglycolic acid and MNPs-aminophosphonate acid are provided in (a) for comparison with MNPs-aspartic acid.