Research Article

Interactions of Carbon Nanotubes and Carbon Nanohorns with a Model Membrane Layer and Lung Surfactant In Vitro

Table 1

Physical data of carbon nanomaterials used in the studies.

CNM designation in this studyNanomaterial description and the supplierExternal particle diameter (nm)Internal particle diameter (nm)Length (nm)SSA (m2/g)

IMultiwalled carbon nanotubes 8 nm/Cheap Tubes Inc., USA<82-510,000-30,000500
IIMultiwalled carbon nanotubes 50 nm/Cheap Tubes Inc., USA50-805-1010,000-20,00060
IIICOOH functionalized graphitized multiwalled carbon nanotubes 20-30 nm/Cheap Tubes Inc., USA20-305-1010,000-30,00055
IVCarbon nanotube, single-walled/Sigma-Aldrich2No data3000>1000 (BET)
VCarbon nanohorns, as grown/Sigma-Aldrich2-5 (by TEM)No data4-5400 (BET)
VICarbon nanohorns, oxidized/Sigma-Aldrich2-5 (by TEM)No data4-51300-1400 (BET)

SSA: specific surface area (as declared by the suppliers).