Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/3941
Title: Non-Enzymatic electrochemical detection of glucose by Mixed-Valence Cobalt containing keggin Polyoxometalate/Multi-Walled Carbon Nanotube composite
Authors: Ayranci, Rukiye
Torlak, Yasemin
Ak, Metin
Keywords: Non-enzymatic biosensors
Electrochemical sensor platform
Polyoxometalates
Amperometric measurements
Carbon-nanotube composites
Electroanalytical performance
Electrocatalytic properties
Electrochemical detection
Keggin type
Keggin type polyoxometalate
Keggin polyoxometalateN
Glucose sensors
Cyclic voltammetry
Chemical detection
Cobalt compounds
Electrochemical oxidation
Electrochemical sensors
Nanotubes
Glucose
Graphite electrodes
Composite films
Mixed-Valence
Multi-Walled Carbon Nanotube
MWCNT
Publisher: Electrochemical Society, Inc.
Abstract: In this work, a non-enzymatic electrochemical sensor platform was developed for catalyze of glucose using graphite electrode modified with Keggin type K7[CoIIICoII(H2O)W11O39].15H2O(Co-POM) and multi-walled carbon nanotube (MWCNT) composite. The Keggin type Co-POM composing of a unique mixed-valence Co(III) and Co(II) structures was confined in a matrix of MWCNT on graphite electrodes to improve the electron transfers. Cyclic voltammetry (CV) and amperometric measurements were performed to investigate the electroanalytical performance of the Co-POM/MWCNT composite for direct electrochemical oxidation of glucose. The proposed this non-enzymatic sensor platform showed a wide linear range from 0.1 mM to 10.0 mM (R = 0.9937) for detection of glucose. Besides it exhibited low detection limit of 1.21 ìM and fast response time of 6s and high sensitivity of 256.4 µAmM-1 cm-2. The results demonstrated that the proposed Co-POM/MWCNT based sensor platform has a high sensitivity, good stability, excellent selectivity, an enhanced electrocatalytic property and acceptable recovery. Therefore, Co-POM/MWCNT based sensor platform is promising potential application for the development of non-enzymatic sensor and catalyst applications.
URI: https://hdl.handle.net/11499/3941
ISSN: 0013-4651
Appears in Collections:Fen-Edebiyat Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Çal Meslek Yüksekokulu Koleksiyonu

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