Qtracker intracellular QD delivery quantified by flow cytometry. (A) Flow cytometry detection of QD labeling of mouse ES cells on day 1, day 4, and day 7. Red line = unlabeled cells as control; green line = cells labeled with QD. (B) Fluorescent images of cells labeled with QDs on day 1 post labeling.
Lin et al. BMC Biotechnology 2007 7:67 doi:10.1186/1472-6750-7-67