Figure 6.

MTT assay to obtain LC50for different sizes of GNPs using Hela cells as a model system. After seeding and proper attachment, the Hela cells were treated with 5, 8, 12, and 17 nm GNPs at the concentrations, indicated on the horizontal axis. The percentage of survival was plotted against GNPs concentration

Chen et al. Nanoscale Research Letters 2009 4:858-864   doi:10.1007/s11671-009-9334-6