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Table 1 The shown measurements were performed 20 minutes after preparation of the samples at concentrations of 600 μg/ml (corresponding particle concentration: 4.4·1013 particles per ml dispersion) and a temperature of 20°C.

From: Inflammatory and cytotoxic responses of an alveolar-capillary coculture model to silica nanoparticles: Comparison with conventional monocultures

Diluent

aSNP (10% + 90% diluent)

 

NexSil20

Ludox TM-40

( D TEM )/nm

31.4 ± 3.8

31.2 ± 4.0

Milli-Q water:

  

ζ/mV

-51.0

-57.3

( D h ) z /nm

32.8 | 35.1

32.0 | 37.9

μ 2

0.12 | 0.04

0.06 | 0.03

PBS:

  

ζ/mV

-18.2

-20.0

( D h ) z /nm

36.8 | 37.2

34.2 | 32.6

μ 2

0.08 |0.17

0.04 | 0.01

Medium RPMI1640:

  

ζ/mV

-19.8

-26.6

( D h ) z /nm

35.4 | 33.4

32.2 | 32.6

μ 2

0.07 | 0.03

0.02 | 0.01

  1. The first values of the size measurements were determined with the fully equipped DLS setup, the second ones with the Zetasizer; the corresponding μ2 values diverge because of the different measuring angles