Figure 2.

Effects of LFA1-P density on 4T1 cellular uptake of indocyanine green (ICG)-labeled NPs. 4T1 cells were seeded on a 12-well plate (300,000 cells/well) and incubated overnight. ICG-labeled NPs with 0.5%, 1%, 2%, and 5% LFA1-P of 0.5 mM (lipid concentration) were added into wells, and plates were incubated at 4 °C for 1 h. ICG fluorescence intensity was measured in a micro-plate reader, and the values are presented as mean ± SD of the replicates.