Nanomaterial Information

Symbol MWNT-OH
Name Hydroxylated multi-walled carbon nanotubes
Source CheapTubes, Brattleboro, VT

Dispersant  -
Size Outer Diameter: 13-18 nm
Length: 1-12 µm
Aggregate Size[1] 383.3 ± 31.7 nm
Refractive Index 2.2

Toxicity test method

Suspension preparation method
400 mg MWNT-OH powder was added to 400 mL ultrapure water generated by a Barnstead EPure system (Thermo Fisher Scientific, Waltham, MA) in a 500-mL glass beaker. The mixture was sonicated in an ice bath with a sonicating probe (Vibra-Cell VCX 500, Sonics & Material, Newtown, CT) at 100 W for 30 min. The sample was stored at room temperature in a 500 mL clear glass bottle wrapped in aluminum foil before use within 6 months.

Particle size measurement method

ENM electrophoretic mobility measurement.


  1. Number mean hydrodynamic diameter nm. Measured by dynamic light scattering (Zetasizer Nano, Malvern, Worcestershire, UK)

Go to Toxicity page