Skip to main content

Advertisement

Table 1 Test material information

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

Material Type Name Producer/distributor Average diameter (nm)a Average length (μm)a Major elementsb Minor elementsc Specific surface area (m2/g)d
Asbestos Crocidolite - UICC 180 4.6 Fe, Si, Na, Mg, Ca, O   8.3e
Glass wool Insulation fibre MMVF10/Manville 901 Johns Manville, Denver, CO, USA 1100 ± 500 21 ±18 Si, Al, O, Na, Mg, K, Ca   1.07f
MWCNTLNL1 Long, needle-like MWCNT-7 Mitsui & co, Ltd, Tokyo, Japan 74 ± 28 5.7 ± 3.7 C < 0.5 wt% Na, Fe, Al, Mg, Ni 22 (29)
MWCNTLNL2 Long, needle-like NM-401 JRC, European Commission 64.2 ± 34.5 4.0 ± 2.4 C, residues of Si < 0.6 wt% Na, Fe, Al, Ni, Mg 18 (31)
MWCNTLT Long, tangled MWCNT 8-15 nm OD Cheap Tubes Inc, Brattleboro, VT, USA 17 ± 7 0.5 ± 0.3 C residues of Ni, Fe < 5 wt% Ni, Na, Fe, Al, Mg, Mn 75 (117)
MWCNTSP Short, purified Baytubes C 150 HP Bayer Material Science, Leverkusen, Germany 12.0 ± 7.0 0.4 ± 0.2 C, residues of Si, Co < 3 wt% Mn, Mg, Al, Na, Ni, Fe ND (189)
MWCNTSNP Short, non-purified NM-400 JRC, European Commission 13.6 ± 3.7 0.8 ± 0.4 C, O, Si, Fe, Mg, Na < 10 wt% Al, Fe, Na, Ni 254 (189)
Carbon black Nano-sized Printex 90 Evonik Industries AG, Essen, Germany 14 - C, residues of Si < 1 wt N, He 295-338g
  1. ND – not determined.
  2. aFor MWCNTs as detected in [33]; for other materials according to producer/distributer.
  3. bElemental analysis by TEM/EDS.
  4. cFrom [33] - ICP-MS analysis; in order of abundance from highest concentration to lowest.
  5. dFrom [33] – BET analysis (SAXS analysis), except for asbestos, glass wool and carbon black.
  6. eFrom [34].
  7. fFrom [35].
  8. gFrom [36].