Fig. 4From: Carboxylated superparamagnetic Fe3O4 nanoparticles modified with 3-amino propanol and their application in magnetic resonance tumor imagingRelaxation properties analysis after surface modification. A The values of 1/T1 with change of Fe3O4 concentration were measured before and after modification; B The values of 1/T2 with change of Fe3O4 concentration were measured before and after modification; C The values of r1 and r2 were analyzedBack to article page