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Table 2 Cytotoxicity (IC 50 ) of the materials

From: Free radical scavenging and formation by multi-walled carbon nanotubes in cell free conditions and in human bronchial epithelial cells

Material IC50concentrationa(μg/cm2)
4 h 24 h 48 h
Asbestos 45 16 9
Glass wool 90 48 66
MWCNTLNL1 128 33 27
MWCNTLNL2 46 60 39
MWCNTLT -b 152 -b
MWCNTSP 20 174 201
MWCNTSNP -b -b -b
Carbon black -b -b -b
  1. aDefined by fitting the data to a logarithmic trend line.
  2. bIC50 not reached within the tested dose range.