Table 2: The effect of each additional incubation cycle on the amount of contrast material that binds per cell. Each cell sample contained 1.5 × 106 cells. The cells were incubated with the different sized GNPs in consequent cycles for 30 min at 37°C each cycle. Each experimental group was run in triplicate. The GNPs were added in excess.

The effect of each additional incubation cycleCell typeGNPs size (nm)Comment

AA43190The cells were incubated with the GNPs in consequent cycles
BA43190, 90
CA43190, 30
DA43190, 30, 10