The new imaging technology uses nanoparticles with a special type of luminosity called photon upconversion, which allows cancer markers to be detected with high sensitivity[2]. The nanoparticles bind to specific antigens on the surface of cancer cells, allowing their precise identification during microscopic examination[2]. The system can not only detect the presence of the biomarker but also accurately determine its amount in the sample[2]. Researchers have validated the effectiveness of this method in detecting prostate-specific antigen as a marker for prostate cancer and in imaging the HER2 biomarker in breast cancer[2]. The methodology is based on an innovative single marker counting approach, which improves diagnostic accuracy[2]. This technology could speed up cancer screening and improve early detection of tumors compared to conventional methods.