Some Observations on Carbon Nanotubes Susceptibility to Cell Phagocytosis

Table 1

Purity of carbon nanotubes before and after chemical oxidative treatment.

Chemical oxidation	Samples	Concentration (wt.%)
		Fe	Co	Al	Ni
Before	SWCNH	1.8	0.007	0.5	0.2
After	SWCNH-F	0.05	0.0001	0.04	0.003
Before	MWCNT	0.3	0.006	0.06	1.2
After	MWCNT-F	0.01	0.001	0.01	0.1
Before	ULSWCNT	0.003	0.8	0.02	0.002
After	ULSWCNT-F	0.0001	0.08	0.006	0.0003