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TEM images of IONs with different mean diameters (d). (a) 4.2 nm, (b) 5.8 nm, (c) 9.8 nm, (d) 11.8 nm, (e) 16.5 nm, and (f) 22.5 nm.
(Color online) (a) Dependence of saturation magnetization and coercivity on the particle size of IONs and (b) ZFC/FC curves of IONs (d = 4.2, 9.8, 11.8, 16.5, and 22.5 nm).
(Color online) AC magnetically induced heating characteristics of IONs with different particle sizes measured at Happl of 140 Oe and fappl of 110 kHz: (a) solid state IONs and (b) DMSA coated IONs dispersed in an agar solution.
Minor hysteresis loops of IONs: (a) DC minor hysteresis loops swept at Happl of ±140 Oe and (b) AC minor hysteresis loops swept at the fixed fappl of 110 kHz with the Happl of ±140 Oe.
Mean hydrodynamic diameters (dH), size distributions, and PDI values of DMSA coated IONs.
SLPs of DMSA coated IONs with different particle sizes.
Summaries of calculated and measured physical values (parameters) of IONs with different: AC/DC hysteresis area (loss), out-of-phase magnetic susceptibility, Ptotal, PNéel, and the contribution of PNéel to the Ptotal in percent.
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