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Table 1 Nanoparticle characteristics and measurement methods

From: Synthesis and Cytotoxicity of Y2O3 Nanoparticles of Various Morphologies

Measurement Sample 1 Sample 2 Sample 3
TEM
Morphology Spheres Platelets Rods
Size (nm) 5 140 30 × 150
XRD
Phase Cubic Cubic Cubic
Crystallite size (nm) 3 4 11
BET
Surface area (m2/g) 150 109 93
Size (nm), spherical shape factor 8 11 13
Size (nm), morphology shape factor 8, 6 24, 8.6 45, 25
Carbon analysis (wt%) 3.13 11.45 1.68
Ligand coverage (molecules/nm2) 0.6 3 5
Zeta potential (mV) −13 −27 −28
DLS (μm) volume weighted mean ~1.5 ~1.5 ~1.5
SLS (μm) volume weighted mean 0.7 0.7 0.8
  1. Sample 1 refers to the solvothermally synthesized nanoparticles, Sample 2 refers to solvothermally synthesized nanoparticles with precursor additions, and Sample 3 refers to hydrothermally synthesized nanoparticles