Fig. 4From: Graphene-based biosensors for the detection of prostate cancer protein biomarkers: a review(Reprinted with permission from [134]. Copyright 2010 Elsevier)a Schematic illustration of peroxidase-like activity of GO for the colorimetric detection of glucose, Reprinted with permission from [120], Copyright 2010, John Wiley and Sons, b schematic representation of the immunoassay procedureBack to article page