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Electrochemical Fabrication of Prussian Blue Nanocube‐decorated Electroreduced Graphene Oxide for Amperometric Sensing of NADH
Author(s) -
Eryiğit Mesut,
Temur Elif,
Özer Tuba Öznülüer,
Doğan Hülya Öztürk
Publication year - 2019
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201800830
Subject(s) - prussian blue , amperometry , graphene , electrode , detection limit , biosensor , electrochemistry , materials science , oxide , nanocomposite , raman spectroscopy , nuclear chemistry , electrochemical gas sensor , electrocatalyst , ferrocyanide , x ray photoelectron spectroscopy , inorganic chemistry , chemistry , nanotechnology , chemical engineering , chromatography , metallurgy , physics , engineering , optics
In this study, Prussian blue (PB) film on the electroreduced graphene oxide (ERGO)‐modified Au electrode surface (ERGO/PB) is easily prepared by means of cyclic voltammetric technique in the mixture of K 3 Fe(CN) 6 and FeCl 3 . Its electrochemical behaviors for NADH biosensor are studied. The structural and morphological characters of modified electrode material are analyzed with using of XPS, XRD, Raman, EDS, and SEM techniques. ERGO/PB hybrid nanocomposite for NADH biosensor is exhibited to the higher catalytic effect (linear range from 1.0 to 100 μM, detection limit of 0.23 μM at S/N=3) compared to naked Au, ERGO‐modified Au, and PB‐modified Au electrodes. In addition to, ERGO/PB electrode was used to voltammetric and amperometric detection of H 2 O 2 . ERGO/PB electrodes also showed the same behavior as the NADH sensor. This ERGO/PB‐modified electrode supplied a simple, new, and low‐cost route for amperometric sensing of both NADH and H 2 O 2 .
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