▎ 摘　　要

NOVELTY - System (100) comprises a biosensor (102) comprising a semiconductor layer comprising a silicon wafer, an electrically passivating layer, two electrodes, a graphene layer coated on parts of the silicon wafer, the silicon dioxide layer, and the second electrode forming a graphene-silicon Schottky junction. A light source (104) is provided with a light emitting device with a wavelength of 300-1000 nm. An electrical stimulator-analyzer device (106) is provided with an electrical voltage generator and an electrical current sensor. A processing unit (108) is electrically connected to the electrical stimulator-analyzer device and the light source. USE - System for detecting glioblastoma cancer cells in a sample through monitoring photocurrent changes of a graphene/silicon schottky junction. ADVANTAGE - The system has high sensitivity and reliability, and enables to detect glioblastoma cancer cells with high sensitivity, and prevents the sample from flowing out of the graphene-semiconductor Schottky junction, and prevent the entrance of pollutants or external materials to graphene-silicon-germanium (SiGe) Schottkky junction. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the system for detecting cancer cells in a sample. 100System 102Biosensor 104Light source 106Electrical stimulator-analyzer device 108Processing unit