Fabrication of CeO2 nanoparticles modified glassy carbon electrode and its application for electrochemical determination of UA and AA simultaneously

Wang, Yan; Li, Maoguo; Jiao, Shoufeng; Huang, Qiyu; Wang, Guangfeng; Fang, Bin

doi:10.1016/j.electacta.2006.06.006

Cited by 71 publications

(25 citation statements)

References 28 publications

(32 reference statements)

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“…As the oxidation of uric acid is known to occur by two-electron transfer, the uric acid catalytic oxidation mechanism, which was expressed in Scheme 1, is two-proton coupled two-electron process. This is consistent with some previous reports [27][28][29][30]. At the same time, the peak current reaches a maximum at pH 7.0, which is close to the physiological pH value.…”

Section: Optimization For Uric Acid Sensingsupporting

confidence: 93%

Sputtering deposition of gold nanoparticles onto vertically aligned carbon nanotubes for electroanalysis of uric acid

Wang¹,

Zhang²

2011

Journal of Electroanalytical Chemistry

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Section: Optimization For Uric Acid Sensingsupporting

confidence: 93%

Sputtering deposition of gold nanoparticles onto vertically aligned carbon nanotubes for electroanalysis of uric acid

Wang¹,

Zhang²

2011

Journal of Electroanalytical Chemistry

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“…However, the major obstacle in the determination of this compound is the interference from other electroactive constituents, such as ascorbic acid (AA), which oxidizes at the same potential as UA on different types of carbon electrodes. Various functionalized electrodes have been used to separate the overlapping anodic peak of UA and AA, such as cobalt (II) tetrakisphenylporphyrin (Co(II)TPP) film [8], enzyme-based electrode [9], nanoparticle-modified electrode [10], and ion-exchange membranes that are widely used to coat electrodes like Nafion film [11]. Although these voltammetric techniques are more selective, less costly and less time consuming than those based on colorimetry or spectrophotometry, a sensitive and selective determination of UA is still needed because of its clinical significance.…”

Section: Introductionmentioning

confidence: 99%

Selective determination of uric acid in the presence of ascorbic acid at poly(p-aminobenzene sulfonic acid)-modified glassy carbon electrode

Tang

Jiang

et al. 2009

J Appl Electrochem

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The electrocatalytic behavior of uric acid has been investigated with a glassy carbon electrode modified with p-aminobenzene sulfonic acid through electrochemical polymerization. This resulting electrode shows an excellent electrocatalytic response to uric acid and ascorbic acid, with a peak-to-peak separation of 0.267 V in a 0.1 mol L -1 phosphate buffer solution (PBS) at pH 7.0. These results indicate that the proposed electrode can eliminate the serious interference of ascorbic acid, which coexists with uric acid in body fluids. Differential pulse voltammetry (DPV) was used for detecting uric acid with selectivity and sensitivity. The anodic peak current of uric acid was proportional to its concentration in the range of 1.2 9 10 -7 -8.0 9 10 -4 mol L -1 , with a detection limit of 4.0 9 10 -8 mol L -1 . The proposed method has been applied with satisfactory results to the determination of uric acid in human urine without any pretreatment.

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“…This confirms that the redox peak corresponds to surface confined species (Li et al 2015). The ratio of anodic and cathodic peak current was approximately equal to one, which indicates that the electrochemical reaction is highly reversible (Wei et al 2006). The electrochemical sensing results obtained for modified electrodes CeO 2 NPs reveals the highly stable and can be used to fabricate good electrochemical sensing devices.…”

Section: Resultsmentioning

confidence: 76%

Fabricated CeO2 nanopowders as a novel sensing platform for advanced forensic, electrochemical and photocatalytic applications

Rohini

Nagabhushana

Darshan³

et al. 2017

Appl Nanosci

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In Forensic investigation, identification of various types of ridge details are essential in order to fix the criminals associated in various crimes. Even though several methods and labeling agents are available to visualize latent finger prints (LFPs) there is still simple, accurate, cost-effective, and non-destructive tool is required. In the present work, CeO 2 nanopowders (NPs) are prepared via simple solution combustion route using Tamarindus indica fruit extract as a fuel. The optimized NPs are utilized for visualization of LFPs on various surfaces by powder dusting method. Results revealed that visualized LFPs exhibit Level 3 features such as pores and ridge contours under normal light with high sensitivity and without background hindrance. The photometric characteristics of the prepared samples exhibit blue color emission and highly useful in warm light emitting diodes. The photocatalytic studies were carried out with different Methylene blue (MB) dye concentration and pH values. The obtained results reveal that the CeO 2 NPs exhibits an excellent catalytic properties which can act as a good catalytic reagent. The findings demonstrate that the prepared NPs are quite useful as a labeling agent for visualization of LFPs, efficient catalysts for dye degradation as well as solid-state lighting applications.

show abstract

Fabrication of CeO2 nanoparticles modified glassy carbon electrode and its application for electrochemical determination of UA and AA simultaneously

Cited by 71 publications

References 28 publications

Sputtering deposition of gold nanoparticles onto vertically aligned carbon nanotubes for electroanalysis of uric acid

Sputtering deposition of gold nanoparticles onto vertically aligned carbon nanotubes for electroanalysis of uric acid

Selective determination of uric acid in the presence of ascorbic acid at poly(p-aminobenzene sulfonic acid)-modified glassy carbon electrode

Fabricated CeO2 nanopowders as a novel sensing platform for advanced forensic, electrochemical and photocatalytic applications

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