Simultaneous electrochemical detection of ascorbic acid, dopamine and uric acid based on graphene anchored with Pd–Pt nanoparticles

Yan, Jun; Shi, Liu; Zhang, Zhenqin; He, Guangwu; Zhou, Ping; Liang, Haiying; Tian, Lulu; Zhou, Xuemin; Jiang, Huijun

doi:10.1016/j.colsurfb.2013.06.030

Cited by 186 publications

(59 citation statements)

References 56 publications

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“…However, a more complicated graphene/ CuPc * /polyaniline/screen printed electrode improves LOD (0.063 lM) at the expense of linearity (0.5-12 lM) [258]. The analytical performance of another complicated system, e.g., the Pd 3 Pt 1 /PDDA-reduced GO/GCE [259] does not improve LOD (0.61 lM) or linearity (40-1200 lM) compared to the screen printed electrode using graphene. The incorporation of AgNPs into rGO on GCE offers no improvement in linearity (10-800 lM) and has a negative impact on LOD (9.6 lM).…”

Section: Other Small Electroactive Analytesmentioning

confidence: 98%

Recent advances in electrochemical biosensing schemes using graphene and graphene-based nanocomposites

Vashist

Luong

2015

Carbon

214

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Section: Other Small Electroactive Analytesmentioning

confidence: 98%

Recent advances in electrochemical biosensing schemes using graphene and graphene-based nanocomposites

Vashist

Luong

2015

Carbon

214

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“…All of the nano-MnO 2 appears with obvious diffraction peaks. These diffraction peaks are located at 2θ of 12 …”

Section: Materials Characterizationmentioning

confidence: 99%

“…d 2 in the Equation (10) is replaced with Equation (11) and Equation (10) was simplified to Equation (12).…”

Section: Spatial Models For Various Morphologies Of Nano-mnomentioning

confidence: 99%

“…The key issue to electroanalytical chemistry lies in the development of ultrasensitive modified electrodes. Precious metal nanoparticles and nanoalloys modified electrodes have exhibited superior sensing performances (i.e., wide linear ranges, low detection limit, good stability and selectivity) [12][13][14], but their scarcity and cost has limited practical applications. To solve this problem, various transition metals or metal oxides modified electrodes have become ideal alternative modification materials [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Morphologically Tunable MnO2 Nanoparticles Fabrication, Modelling and Their Influences on Electrochemical Sensing Performance toward Dopamine

Liu

et al. 2018

Catalysts

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Abstract:The morphology or shape of nanomaterials plays an important role in functional applications, especially in the electrochemical sensing performance of nanocomposites modified electrodes. Herein, the morphology-dependent electrochemical sensing properties of MnO 2 -reduced graphene oxide/glass carbon electrode (MnO 2 -RGO/GCE) toward dopamine detection were investigated. Firstly, various morphologies of nanoscale MnO 2 , including MnO 2 nanowires (MnO 2 NWs), MnO 2 nanorods (MnO 2 NRs), and MnO 2 nanotubes (MnO 2 NTs), were synthesized under different hydrothermal conditions. Then the corresponding MnO 2 -RGO/GCEs were fabricated via drop-casting and the subsequent electrochemical reduction method. The oxidation peak currents increase with the electrochemical activity area following the order of MnO 2 NWs-RGO/GCE, MnO 2 NTs-RGO/GCE, and MnO 2 NRs-RGO/GCE. The spatial models for MnO 2 NWs, MnO 2 NTs, and MnO 2 NRs are established and accordingly compared by their specific surface area, explaining well the evident difference in electrochemical responses. Therefore, the MnO 2 NWs-RGO/GCE is selected for dopamine detection due to its better electrochemical sensing performance. The response peak current is found to be linear with dopamine concentration in the range of 8.0 × 10 −8 mol/L-1.0 × 10 −6 mol/L and 1.0 × 10 −6 mol/L-8.0 × 10 −5 mol/L with a lower detection limit of 1 × 10 −9 mol/L (S/N = 3). Finally, MnO 2 NWs-RGO/GCE is successfully used for the determination of dopamine injection samples, with a recovery of 99.6-103%. These findings are of great significance for understanding the relationship between unlimited nanoparticle structure manipulation and performance improvement.

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“…42 In their preparation, poly(diallyldimethylammonium chloride) (DPPA) was used according to a previous report for anchoring PtCl6 2-and PdCl4 2-. 43 For preparing similar Pd-Pt bimetallic NPs, another anchoring with Sn 2+ was also reported.…”

Section: ·1 Chemical Co-reduction Of Go and Metal Ionsmentioning

confidence: 99%

Recent Nanoarchitectures in Metal Nanoparticle-Graphene Nanocomposite Modified Electrodes for Electroanalysis

Oyama

Chen

2014

ANAL. SCI.

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While increasing attention has been devoted to the use of carbon-based nanomaterials or metal nanoparticles (MNPs) as electrode modifiers for electroanalysis, there is a noticeable development in studies using MNP-graphene nanocomposites or nanohybrids in very recent years. In this review, first, very recent nanoarchitectures in MNP-graphene nanocomposites for modifying electrodes (mainly in 2013) are summarized together with the targets and achievements of electroanalysis. The variety of nanoarchitectures comes from the fact that graphene oxide and metal precursor ions can be reduced chemically or electrochemically, and concurrently or stepwisely. By browsing various preparation methods of the modified electrodes, some characteristic and interesting features of the preparations of MNP-graphene nanocomposites are described together with the possibilities and prospects as electrode modifiers for electroanalysis.

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Simultaneous electrochemical detection of ascorbic acid, dopamine and uric acid based on graphene anchored with Pd–Pt nanoparticles

Cited by 186 publications

References 56 publications

Recent advances in electrochemical biosensing schemes using graphene and graphene-based nanocomposites

Recent advances in electrochemical biosensing schemes using graphene and graphene-based nanocomposites

Morphologically Tunable MnO2 Nanoparticles Fabrication, Modelling and Their Influences on Electrochemical Sensing Performance toward Dopamine

Recent Nanoarchitectures in Metal Nanoparticle-Graphene Nanocomposite Modified Electrodes for Electroanalysis

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