Similar approaches and analytical techniques for exosome protein typing have been developed: Using the NanoSight LM10 equipped with a 405 nm blue-violet laser, Gercel-Taylor et al. demonstrated that antibodies against either CD63 or EpCAM labelled with quantum dots could be used to phenotype exosomes purified from patients with ovarian cancer (27). The gene discussed is EPCAM; the disease is ovarian cancer.