performed the bioconjugation of near‐infrared QDs to anti‐HER2 antibodies using an N‐ethyl‐N’‐(3‐dimethylaminopropyl)carbodiimide (EDC)/N‐hydroxysuccinimide (NHS) coupling method, and HER2 receptors were successfully localized in both fixed and live cancer cells 20. The gene discussed is ERBB2; the disease is cancer.