Fig. 3

Binding and uptake kinetics of CD38pep- and CD138pep-targeted nanoparticles. a, b Targeted nanoparticles were incubated with H929 cells on ice for increasing amounts of time. Fluorescence was then measured by flow cytometry. c, d Targeted nanoparticles with 1% peptide were incubated with H929 cells at 37 °C for increasing amounts of time. The cells were then trypsinized and fluorescence was measured by flow cytometry. All experiments were done in triplicate. Data represent means (± s.d.)