One-step electrochemical deposition of Polypyrrole–Chitosan–Iron oxide nanocomposite films for non-enzymatic glucose biosensor
Document Type
Article
Publication Date
1-1-2016
Abstract
One-step electrodeposition method of Polypyrrole–Chitosan–Iron oxide (Ppy–CS–Fe3O4) nanocomposite films (Ppy–CS–Fe3O4NP/ITO) has been developed for the fabrication of advanced composite coatings for biosensors applications. The FESEM and EDX results provide the evidence of successful incorporation of Fe3O4 into Ppy–CS molecules. The presence of Fe3O4 nanoparticles in the nanocomposite films was further confirmed by the XRD and XPS spectrums. The fabricated electrode Ppy–CS–Fe3O4 NP/ITO shows a fast amperometric response with high selectivity to detect glucose non-enzymatically with improved linearity (1–16 mM) and the detection limit of (234 μM) at a signal-to-noise ratio (S/N=3.0).
Keywords
Electrodeposition, Glucose biosensor, Nanocomposites, Iron oxide nanoparticles, X-ray techniques, XPS
Divisions
CHEMISTRY
Funders
Ministry of Higher Education, Malaysia for the Fundamental Research Grant Scheme (FRGS) (Project No. FP034-2013A),University of Malaya Postgraduate Research Grant (PPP) (Project No: PG111-2013A)
Publication Title
Materials Letters
Volume
183
Publisher
Elsevier