Fig. 3From: Graphene-based biosensors for the detection of prostate cancer protein biomarkers: a review(Reprinted with permission from [105]. Copyright 2012 Elsevier)Illustration of PSA immunosensor fabrication process. A An ECL immunosensor on the electrode surface modified with Au/Ag-rGO, Reprinted with permission from [96]. B FET immunosensor on an rGO channelBack to article page