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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.