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Table 1 Particle characteristics.

From: Cytokine responses of human lung cells (BEAS-2B) treated with micron-sized and nanoparticles of metal oxides compared to soil dusts

Code Name Nominal Size
μm
Vendor Surface
m2/g
Surface mean
diameter μm
Comment
Al-N nano Al2O3 0.008 – 0.014 3 261 0.006 alpha alumina
Al-M micron Al2O3 1 1 7.7 0.21 gamma alumina
Ce-N nano CeO2 0.009 – 0.015 1 71.3 0.014  
Ce-M micron CeO2 5 1 0.6 1.5  
Fe-N nano Fe2O3 0.003 1 221 0.005  
Fe-M micron Fe2O3 5 1 11.6 0.10  
Ni-N nano NiO 0.010 – 0.020 5 145 0.006  
Ni-M micron NiO < 10 5 56.9 0.016  
Si-N nano SiO2 0.010 3 127 0.019 amorphous silica
Si-M micron SiO2 0.5 – 10 1 5.4 0.44 amorphous silica
Ti-N nano TiO2 0.005 3 242 0.006 anatase
Ti-M micron TiO2 1 – 2 1 3.5 0.41 rutile
KLN kaolin   2 24.3 0.1 commercial clay for ceramics
MUS Min-U-Sil < 5 6    ground crystalline silica
DD rural soil, Desert < 3 4 6.2 0.4 PM2.5-enriched natural dust
JE urban street, Juarez < 3 4    PM2.5-enriched natural dust
MNC rural soil, Mancos < 3 4 13.0 0.2 PM2.5-enriched natural dust
LPS lipopoly-saccharide soluble 5    positive control P. aeruginosa 1000 EU/mL
V VOSO4 soluble 1    positive control 19 μg/mL
TNF-α tumor necrosis factor alpha soluble 5    positive control 0.01 μg/mL
  1. Supplier codes: 1) Alfa Aesar; 2) Capitol Ceramics, Salt Lake City, UT; 3) Nanostructured and Amorphous Materials, Los Alamos NM; 4) Natural mixture, field sampling by authors; 5) Sigma Aldrich; 6) US Silica.
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