Nanostructured cerium oxide catalyst support: Effects of morphology on the electroactivity of gold toward oxidative sensing of glucose

Gougis, Maxime; Tabet-Aoul, Amel; Ma, Dongling; Mohamedi, Mohamed

doi:10.1007/s00604-014-1283-9

Cited by 15 publications

(8 citation statements)

References 32 publications

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“…The electroactive surface area (ESA), estimated by integrating the charge consumed for reducing the Au oxides formed in the positive scan by assuming that the reduction of a monolayer of Au oxides requires 400 mC cm À2 , 21 was found to be 6.03 cm 2 , which is higher than the ESA obtained with the lol electrode structure CeO 2 -Au (4.30 cm 2 ). 15 The glucose electro-oxidation was rst investigated at the Au-CeO 2 nanocomposite electrode in a pH 7.2 PBS solution containing 100 mM glucose. Fig.…”

Section: Electrochemical and Glucose Determination Studiesmentioning

confidence: 99%

“…22 The peak current in the forward scan is 674 mA, which is 1.45 times larger than that delivered by the lol CeO 2 -Au electrode (450.45 mA). 15 Aerward, slow scan CV with 2 mV s À1 was conducted in argon-saturated PBS solution containing various concentrations of glucose (0.01 mM to 100 mM) at the Au-CeO 2 nanocomposite electrode (Fig. 5a).…”

Section: Electrochemical and Glucose Determination Studiesmentioning

confidence: 99%

“…In our recent publication, we reported a single-beam pulsed laser deposition (PLD) of a layer onto layered (lol) CeO 2 -Au nanostructures. 15 Various morphologies of CeO 2 were synthesized under three different background atmospheres, i.e., vacuum, inert (He gas) and oxygen gas. The effect of the obtained morphologies (regular segments composed of clusters of particles, uffy-like texture, lamellaelike texture) of the CeO 2 layer on the electroactivity of gold (itself deposited by PLD) towards GER was presented.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simultaneous deposition of cerium oxide and gold nanostructures-characterization and analytical properties toward glucose electro-oxidation and sensing

Gougis¹,

Péreira²,

Ma³

et al. 2014

RSC Adv.

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Section: Electrochemical and Glucose Determination Studiesmentioning

confidence: 99%

Section: Electrochemical and Glucose Determination Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous deposition of cerium oxide and gold nanostructures-characterization and analytical properties toward glucose electro-oxidation and sensing

Gougis¹,

Péreira²,

Ma³

et al. 2014

RSC Adv.

Self Cite

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“…There have been developed glucose sensors using different nanomaterials including platinum, gold, palladium, and metal oxides [1,[4][5][6]. Among them, due to biocompatibility, higher activity, and lower potential of glucose electrooxidation, gold is one of the most inspiring materials for the fabrication of glucose sensors [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Development Of Simple Reliable and Fast Methods For Detectimentioning

confidence: 99%

Non-enzymatic glucose biosensor based on hyperbranched pine-like gold nanostructure

Heli

Amirizadeh

2016

Materials Science and Engineering: C

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Hyperbranched pine-like gold nanostructure was electrodeposited on the polycrystalline gold surface at 0 mV (vs. AgCl) with the assistance of histidine as a soft template. The nanostructure was then applied as a highly sensitive nonenzymatic sensor for glucose. The catalytic activity and sensitivity of the gold nanostructure toward the electrooxidation of glucose was excellent without surface fouling and deterioration effects. The current related to the oxidation of glucose rapidly and linearly depended on its concentration with a sensitivity of 776.8 μA cm(-2)mmol(-1)dm(3), a detection limit of 3.39 μmol dm(-3) with a relative standard deviation of 2.32%.

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“…nickel(II) hydroxide and copper(II) hydroxide) and alloys (e.g. Au-Pt), have been extensively utilized for the fabrication of non-enzymatic electrochemical sensors, [10][11][12][13] owing to the advantages of simplicity, reproducibility and stability in aggressive environment. Among them, gold nanoparticles (AuNPs) have attracted much interest because of their good electrical conductivity, biological compatibility and stability.…”

Section: Introductionmentioning

confidence: 99%

Self-assembly of cucurbit[7]uril on the surface of graphene/gold modified electrode

Tao

Huang

et al. 2016

Nanomaterials and Nanotechnology

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Using supramolecular recognition capability of cucurbit[7]uril to create a novel electrochemical sensing platform was accomplished by self-assembly of cucurbit[7]uril on the surface of graphene-gold composites modified glassy carbon electrode. The graphene-gold composites consisted of electrochemically reduced graphene oxide-nafion matrix and anchored electrodeposited gold nanoparticles and the graphene-gold composites modified glassy carbon electrode (labelled as graphene-gold) were characterized by scanning electron microscopy and Raman spectrometer. Self-assembly of cucurbit[7]uril was achieved by immersing the graphene-gold electrode into cucurbit[7]uril solution and confirmed by Fourier transform infrared spectra, cyclic voltammetry and electrochemical impedance spectroscopy. Ferrocene and its derivatives served as the substrates, and the electrochemical responses of fabricated graphene-gold/cucurbit[7]uril electrode were evaluated. The results showed that the presence of cucurbit[7]uril increased the peak current, improved the reversibility of reaction and extended the recognition ability of the modified electrode.

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Nanostructured cerium oxide catalyst support: Effects of morphology on the electroactivity of gold toward oxidative sensing of glucose

Cited by 15 publications

References 32 publications

Simultaneous deposition of cerium oxide and gold nanostructures-characterization and analytical properties toward glucose electro-oxidation and sensing

Simultaneous deposition of cerium oxide and gold nanostructures-characterization and analytical properties toward glucose electro-oxidation and sensing

Non-enzymatic glucose biosensor based on hyperbranched pine-like gold nanostructure

Self-assembly of cucurbit[7]uril on the surface of graphene/gold modified electrode

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