Figure 6

Crystal violet staining of migrated HUVECs (A-U, x200). (A) Control; ( B - F ) HUVECs labeled with 5, 10, 25, 50 and 100 μg/mL 30 nm GMNPs for 12 hours; ( G - K ) HUVECs labeled with 5, 10, 25, 50 and 100 μg/mL 50 nm GMNPs for 12 hours; ( L - P ) HUVECs labeled with 25 μg/mL 30 nm GMNPs for 3, 6, 12, 24 and 48 hours; ( Q - U ) HUVECs labeled with 25 μg/mL 50 nm GMNPs for 3, 6, 12, 24 and 48 hours. ( V - W ) Relative number of migrated HUVECs labeled with different concentrations of 30 and 50 nm GMNPs for various times. ^* P < 0.05, compared with the control group.