Figure 9
From: Catechin tuned magnetism of Gd-doped orthovanadate through morphology as T1-T2 MRI contrast agents

Magnetization curves of GL nanoparticles at 300 K 1) without cat (a) and cat (b, [cat4−]/[La3 +] = 1:0.05) (Experimental conditions: T = 210 °C, t = 4 h, pH = 7), 2) [cat4−]/[La3+] = 1:0.01 (c), [cat4−]/[La3+] = 1:0.05 (d) and [cat4−]/[La3+] = 1:1 (e) (Experimental conditions: T = 180 °C, t = 24 h).