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Table 1 Characteristics of nanoparticles

From: Protein corona: implications for nanoparticle interactions with pulmonary cells

  CeO2 Si-CeO2 BaSO4 ZnO
SSA (m2/g) 28.0 27.8 34.6 41.0
Dxrd (nm) 32.9 32.6 36.0 29.0
ρ (g/cm2) 7.65 ~7.20 4.50 5.61
NPs in DPBS
 DH (nm) 1254 ± 110 378 ± 13 191 ± 13 2524 ± 343
 PdI 0.35 ± 0.04 0.30 ± 0.05 0.38 ± 0.03 0.29 ± 0.03
 Conductance (mS/cm) 13.4 ± 0.46 14.3 ± 0.49 14.2 ± 0.64 13.7 ± 0.17
 ζ (mV) −21.4 ± 0.46 −23.5 ± 0.55 −30.7 ± 1.92 −28.2 ± 5.26
NPs without corona in DI water
 DH (nm) 136 ± 1 208 ± 3 154 ± 21 221 ± 3
 PdI 0.29 ± 0.03 0.29 ± 0.02 0.29 ± 0.005 0.23 ± 0.02
 Conductance (mS/cm) 0.016 ± 0.001 0.018 ± 0.0002 0.011 ± 0.001 0.04 ± 0.007
 ζ(mV) 34.5 −26.8 −18.7 23.0
NPs with coronas (post-30 min incubation in BALf) in DI water
 DH (nm) 1513 ± 17 460 ± 12 595 ± 17 2189 ± 64
 PdI 0.49 ± 0.02 0.35 ± 0.02 0.48 ± 0.02 0.30 ± 0.05
 Conductance (mS/cm) 14.7 ± 0.87 15.1 ± 0.76 14.8 ± 0.81 14.6 ± 0.23
 ζ (mV) −19.0 ± 0.91 −19.2 ± 0.66 −15.2 ± 1.76 −17.7 ± 2.56
  1. SSA specific surface area measured with BET analysis
  2. D xrd primary particle size based on X-ray diffraction
  3. ρ density, Si-CeO2 (based on 91:9 ratio of CeO2:SiO2)
  4. D H hydrodynamic diameter by DLS
  5. PdI polydispersity index
  6. ζ zeta potential by DLS
  7. DI water deionized water
  8. DPBS Dulbecco’s phosphate buffered saline
  9. BALf bronchoalveolar lavage fluid