Please use this identifier to cite or link to this item: http://ir.swu.ac.th/jspui/handle/123456789/12965
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dc.contributor.authorNantaphol S.
dc.contributor.authorWatanabe T.
dc.contributor.authorNomura N.
dc.contributor.authorSiangproh W.
dc.contributor.authorChailapakul O.
dc.contributor.authorEinaga Y.
dc.date.accessioned2021-04-05T03:21:55Z-
dc.date.available2021-04-05T03:21:55Z-
dc.date.issued2017
dc.identifier.issn9565663
dc.identifier.other2-s2.0-85021181600
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85021181600&doi=10.1016%2fj.bios.2017.06.034&partnerID=40&md5=4aa5cae13e72da0dbdc84299ec3c3dd6
dc.identifier.urihttp://ir.swu.ac.th/jspui/handle/123456789/12965-
dc.description.abstractThe enormous demand for medical diagnostics has encouraged the fabrication of high- performance sensing platforms for the detection of glucose. Nonenzymatic glucose sensors are coming ever closer to being used in practical applications. Bimetallic catalysts have been shown to be superior to single metal catalysts in that they have greater activity and selectivity. Here, we demonstrate the preparation, characterization, and electrocatalytic characteristics of a new bimetallic Pt/Au nanocatalyst. This nanocatalyst can easily be synthesized by electrodeposition by sequentially depositing Au and Pt on the surface of a boron-doped diamond (BDD) electrode. We characterized the nanocatalyst by scanning electron microscopy (SEM), X-ray diffraction (XRD), and voltammetry. The morphology and composition of the nanocatalyst can be easily controlled by adjusting the electrodeposition process and the molar ratio between the Pt and Au precursors. The electrocatalytic characteristics of a Pt/Au/BDD electrode for the nonenzymatic oxidation of glucose were systematically investigated by cyclic voltammetry. The electrode exhibits higher catalytic activity for glucose oxidation than Pt/BDD and Au/BDD electrodes. The best catalytic activity and stability was obtained with a Pt:Au molar ratio of 50:50. Moreover, the presence of Au can significantly enhance the long-term stability and poisoning tolerance during the electro-oxidation of glucose. Measurements of glucose using the Pt/Au/BDD electrode were linear in the range from 0.01 to 7.5 mM, with a detection limit of 0.0077 mM glucose. The proposed electrode performs selective electrochemical analysis of glucose in the presence of common interfering species (e.g., acetaminophen, uric and ascorbic acids), avoiding the generation of overlapping signals from such species. © 2017 Elsevier B.V.
dc.subjectAscorbic acid
dc.subjectCatalyst activity
dc.subjectCatalyst selectivity
dc.subjectCatalysts
dc.subjectCatalytic oxidation
dc.subjectCyclic voltammetry
dc.subjectDiagnosis
dc.subjectDiamonds
dc.subjectElectrodeposition
dc.subjectElectrodes
dc.subjectElectrooxidation
dc.subjectGlucose
dc.subjectGlucose sensors
dc.subjectGold deposits
dc.subjectOxidation
dc.subjectPlatinum
dc.subjectScanning electron microscopy
dc.subjectX ray diffraction
dc.subjectBoron doped diamond
dc.subjectBoron-doped diamond electrodes
dc.subjectElectrochemical analysis
dc.subjectElectrodeposition process
dc.subjectMorphology and composition
dc.subjectNano-catalyst
dc.subjectNon-enzymatic
dc.subjectNon-enzymatic glucose sensors
dc.subjectElectrochemical electrodes
dc.subjectgold
dc.subjectplatinum
dc.subjectboron
dc.subjectglucose
dc.subjectgold
dc.subjectmetal nanoparticle
dc.subjectArticle
dc.subjectboron doped diamond electrode
dc.subjectcontrolled study
dc.subjectcyclic potentiometry
dc.subjectelectrochemical analysis
dc.subjectelectrochemical impedance spectroscopy
dc.subjectelectrode
dc.subjectelectrodeposition
dc.subjectfield emission scanning electron microscopy
dc.subjectglucose oxidation
dc.subjectglucose sensor
dc.subjectnanocatalyst
dc.subjectnonenzymatic glucose sensor
dc.subjectpotentiometry
dc.subjectscanning electron microscopy
dc.subjectX ray diffraction
dc.subjectcatalysis
dc.subjectchemistry
dc.subjectelectrochemical analysis
dc.subjectelectrode
dc.subjectgenetic procedures
dc.subjectisolation and purification
dc.subjectlimit of detection
dc.subjectBiosensing Techniques
dc.subjectBoron
dc.subjectCatalysis
dc.subjectElectrochemical Techniques
dc.subjectElectrodes
dc.subjectGlucose
dc.subjectGold
dc.subjectLimit of Detection
dc.subjectMetal Nanoparticles
dc.subjectMicroscopy, Electron, Scanning
dc.titleBimetallic Pt–Au nanocatalysts electrochemically deposited on boron-doped diamond electrodes for nonenzymatic glucose detection
dc.typeArticle
dc.rights.holderScopus
dc.identifier.bibliograpycitationBiosensors and Bioelectronics. Vol 98, (2017), p.76-82
dc.identifier.doi10.1016/j.bios.2017.06.034
Appears in Collections:Scopus 1983-2021

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