3 pages. -- Figure S1 – Optimization of the drop-casting procedure of the graphene acid solution: electrochemical characterization of the electrode surface. -- Figure S2 – FTIR spectra of the SPCE with and without the application of the linker EDC/NHS. -- Table S1 – Electrochemical data of the biosensor characterization steps (mean ± standard deviation, n=3). -- Table S2 – Surface parameters extracted from AFM microscopies. -- Table S3 – Electrochemical data of faradaic detections of targets (mean ± standard deviation, n = 3). -- Table S4 - Electrochemical data obtained from non-faradaic EIS detections (mean ± standard deviation, n = 3)

Peer reviewed