Combined Detection of Cancer Cells and a Tumor Biomarker using an Immunomagnetic Sensor for the Improvement of Prostate-Cancer Diagnosis

Capture and detection of both a relevant antigen and cancer cells are demonstrated using magnetic graphene oxide (MGO) possessing conjugated antibodies. By simply dropping the MGO onto the surface of Pt electrodes while in a magnetic field, the sensor is rapidly constructed. The dual approach of the sensor potentially offers a more accurate, rapid platform than current tests based on immunological methods.