. Author manuscript; available in PMC: 2018 Jun 1.

Published in final edited form as: Toxicol In Vitro. 2017 Mar 9;41:223–231. doi: 10.1016/j.tiv.2017.03.002

Table 1.

Physicochemical characterization of MWCNTs

		Uncut		Cut (Acid Oxidized)
	Dispersant	Uncoated	Coated (2% DSPE-PEG)	Uncoated	Coated (2% DSPE-PEG)
Hydrodynamic diameter (D)/ Polydispersity index (PI)	H₂O	D=185 ± 2 nm	D=251 ± 13 nm	D=137 ± 0.1 nm	D=171 ± 0.4 nm
	H₂O	PI=0.29 ± 0.02	PI=0.34 ± 0.02	PI=0.27 ± 0.01	PI=0.25 ± 0.01
	PBS	D=2086 ± 333 nm	D=219 ± 12 nm	D=709 ± 126 nm	D=166 ± 0.6 nm
	PBS	PI=0.55 ± 0.04	PI=0.38 ± 0.08	PI=0.31± 0.02	PI=0.22 ± 0.02
ζ-potential	H₂O	−37.9 ± 0.5 mV	−32.9 ± 0.9 mV	−49.3 ± 1.0 mV	−37.2 ± 0.6 mV