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Table 1 Zeta potential and particle size

From: Passage of Magnetic Tat-Conjugated Fe3O4@SiO2 Nanoparticles Across In Vitro Blood-Brain Barrier

Nanoparticles Zeta potential (mV) Size (nm)
Fe3O4 −23.7 ± 1.87 23.7 ± 2.06
Fe3O4@SiO2 −15.4 ± 1.05 72.8 ± 2.54
Amino-Fe3O4@SiO2 24.9 ± 2.05 76.4 ± 1.27
Tat-Fe3O4@SiO2 42.1 ± 2.25 87.6 ± 3.23