Label-free and signal-on homogeneous photoelectrochemical cytosensing strategy for ultrasensitive cancer cell detection

We report a label-free and signal-on homogeneous photoelectrochemical cytosensing system for ultrasensitive detection of cancer cells, which is a truly homogeneous PEC cytosensing system without the photoactive material immobilization and target recognition probe modification, providing a new avenue in early and accurate cancer diagnosis and clinical analysis.