Lee et al. proposed using oligonucleotide‐functionalized quantum dots and magnetic microparticles for optical detection of rearranged TMPRSS2: ERG fusion genes at low concentrations in buffer, urine, and prostate cancer cells (LNCaP and NCI‐H660 cell lines) to develop an assay for prostate cancer diagnosis.179. The gene discussed is ERG; the disease is prostate cancer.