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Pulsed Deposited Manganese and Vanadium Oxide Film Modified with Carbon Nanotube and Gold Nanoparticle: Chitosan and Ionic Liquid‐based Biosensor
Author(s) -
Akoğulları Seçil,
Çιnar Seda,
Özdokur Kemal Volkan,
Aydemir Tülin,
Ertaş Fatma Nil,
Koçak Süleyman
Publication year - 2020
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.201900194
Subject(s) - biosensor , cyclic voltammetry , materials science , carbon nanotube , high resolution transmission electron microscopy , ionic liquid , x ray photoelectron spectroscopy , amperometry , colloidal gold , electrophoretic deposition , nanoparticle , chitosan , transmission electron microscopy , electrochemistry , nuclear chemistry , electrode , inorganic chemistry , chemical engineering , nanotechnology , chemistry , organic chemistry , coating , catalysis , engineering
Present study describes the synthesis of mixed oxide films of manganese and vanadium by electrochemical pulsed deposition technique on a glassy carbon electrode (GCE) modified with multiwall carbon nanotubes (MWCNT). The film was further decorated with gold nanoparticles to enhance the reduction signal of dissolved oxygen in pH 5.17 acetate buffer solution. All of the electrochemical synthesized modified electrodes have been characterized with Scanning electron microscopy(SEM), High‐resolution transmission electron microscopy (HRTEM), X‐Ray photoelectron spectroscopy (XPS), X‐Ray diffraction (XRD) techniques. The electrode obtained (AuNPs/MnOx−VOx/CNT/GCE) was utilized as a platform for glucose biosensor where the glucose oxidase enzyme was immobilized on the composite film with the aid of chitosan and an ionic liquid. The electrochemical performance of the biosensor was investigated by cyclic voltammetry and the relative parameters have been optimized by amperometric measurements in pH 5.17 acetate buffer solution. The developed biosensor exhibited a linear range for glucose between 0.1–1.0 mM and the limit of detection was calculated as 0.02 mM.