▎ 摘　　要

NOVELTY - Sensor for detecting a prostate-specific biomarker, comprises a graphene layer deposited on an underlying substrate, antibodies coupled to the graphene layer to generate an antibody-functionalized graphene layer, where the antibodies exhibit specific binding to a prostate specific biomarker, and electrical conductors electrically coupled to the antibody-functionalized graphene layer for measuring an electrical property. USE - The sensor is useful for detecting a prostate-specific biomarker (claimed). ADVANTAGE - The sensor: can be calibrated to allow the quantification of the detected prostate-specific biomarker; exhibit specific binding to the prostate-specific biomarker; and have high specificity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) detecting a prostate-specific biomarker in a sample; and (2) a sensor for detecting a prostate-specific biomarker. DESCRIPTION OF DRAWING(S) - The figure shows the schematic representation of the sensor. Sensor (100) Sensing element (102) Antibodies and/or aptamers (104) Graphene layer (106) Underlying substrate (108)