Effects of Carboxylated Multiwalled Carbon Nanotubes on the Function of Macrophages

Table 1

Phagocytic activity of the macrophages in contact with the carbon nanotubes.

	Phagocytic rate (%)	Phagocytic index
Negative control	17.17 ± 4.35	0.542 ± 0.069
p-MWCNTs	25.13 ± 6.7	0.804 ± 0.06
MWCNTs-COOH	26.67 ± 5.4	0.795 ± 0.11
LPS	48.38 ± 3.7	1.929 ± 0.20

< 0.05 as compared with negative control.