Ferrocene-functionalized graphene electrode for biosensing applications.
A novel ferrocene-functionalized reduced graphene oxide (rGO)-based electrode is proposed. It was fabricated by the drop casting of ferrocene-functionalized graphene onto polyester substrate as the working electrode integrated within screen-printed reference and counter electrodes. The ferrocene-functionalized rGO has been fully characterized using FTIR, XPS, contact angle measurements, SEM and TEM microscopy, and cyclic voltammetry. The XPS and EDX analysis showed the presence of Fe element related to the introduced ferrocene groups, which is confirmed by a clear CV signal at ca. 0.25 V vs. Ag/AgCl (0.1 KCl). Mediated redox catalysis of H2O2 and bio-functionalization with glucose oxidase for glucose detection were achieved by the bioelectrode providing a proof for potential biosensing applications.
['Rabti|Amal|A|', 'Mayorga-Martinez|Carmen C|CC|', 'Baptista-Pires|Luis|L|', 'Raouafi|Noureddine|N|', 'Merkoçi|Arben|A|']
D015374:Biosensing Techniques D004566:Electrodes D005296:Ferrous Compounds D005947:Glucose D006108:Graphite D057230:Limit of Detection D000075163:Metallocenes D008855:Microscopy, Electron, Scanning D046529:Microscopy, Electron, Transmission D056951:Photoelectron Spectroscopy D017550:Spectroscopy, Fourier Transform Infrared
Ferrocene Biosensor Functionalization Non-enzymatic sensor Reduced graphene oxide electrode