Fig. 3From: Carboxylated superparamagnetic Fe3O4 nanoparticles modified with 3-amino propanol and their application in magnetic resonance tumor imaging Zeta potential and thermogravimetric analysis after surface modification. A Zeta potential analysis after surface modification. B Thermogravimetric analysis after surface modification. C Cell proliferation was measured with CCK8 method (* indicates p < 0.05 compared with group 0 µmol/mL)Back to article page