Skip to main content
. 2014 Jul 8;6(15):12939–12946. doi: 10.1021/am504270c

Figure 2.

Figure 2

Magnetic properties of the magnetic nanoflakes (MNFs): (a) SQUID analysis of cycle magnetization showing the lack of any hysteresis loop and a magnetization saturation of ∼80 emu gFe–1. (b) Temperature increase over time for a 0.6 mL solution of MNFs (0.76 mgFe mL–1) exposed to an alternating magnetic field (512 kHz and 10 kA m–1 AMF) for 30 min. (c) Bar chart summarizing specific absorption rate (SAR = 73.8 ± 2.3 W gFe–1) and relaxivities (r1 = 4.98 ± 0.58 mM–1 s–1 and r2 = 475 ± 28 mM–1 s–1) of the MNFs. Note that the SAR of the MNFs is ∼60 times larger than that of the single NCs (1.25 ± 0.12 W gFe–1).