Gold nanoclusters doped poly(3,4-ethylenedioxythiophene) for highly sensitive electrochemical sensing of nitrite

Fan, Xiaoxuan; Peipei, Lin; Liang, Shaoping; Hui, Ni; Zhang, Ruiqiao; Feng, Jiu‐Ju; Xu, Guogang

doi:10.1007/s11581-016-1865-0

Cited by 34 publications

(4 citation statements)

References 40 publications

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“…To determine nitrites, various materials are used to modify the surface of electrodes. Among them are conductive polymers, such as PEDOT and polyaniline, in addition to their composites, which have electroactive molecules and metal nanoparticles (MNPs); for example, PEDOT/PAS (PAS is a polyacenic semiconductor) [ 10 ], polyaniline/MoS 2 [ 11 ], nano-sized hydroxyapatite/PEDOT [ 12 ], and AuNC/PEDOT [ 13 ]. Nanocarbon materials and their composites are also widely used in the modification of the electrodes in the electrochemical sensors that detect nitrite ions; for example, rGO/MWCNTs [ 14 ], rGO/ferrocene [ 15 ], PtNPs loaded Ni(OH) 2 /multi-walled carbon nanotube composites [ 16 ], chitosan/Prussian blue nanoparticles in a mixture of graphene nanosheets and carbon nanospheres [ 17 ], and many others.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor Based on Iron(II) Phthalocyanine and Gold Nanoparticles for Nitrite Detection in Meat Products

Dorovskikh¹,

Klyamer²,

Fedorenko³

et al. 2022

Sensors

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Nitrites are widely used in the food industry, particularly for the preservation of meat products. Controlling the nitrate content in food is an important task to ensure people’s health is not at risk; therefore, the search for, and research of, new materials that will modify the electrodes in the electrochemical sensors that detect and control the nitrate content in food products is an urgent task. In this paper, we describe the electrochemical behavior of a glass carbon electrode (GCE), modified with a Fe(II) tetra-tert-butyl phthalocyanine film (FePc(tBu)4/GCE), and decorated with gold nanoparticles (Au/FePc(tBu)4/GCE); this electrode was deposited using gas-phase methods. The composition and morphology of such electrodes were examined using spectroscopy and electron microscopy methods, whereas the main electrochemical characteristics were determined using cyclic voltammetry (CV) and amperometry (CA) methods in the linear ranges of CV 0.25–2.5 mM, CA 2–120 μM in 0.1 M phosphate buffer (pH = 6.8). The results showed that the modification of bare GCEs, with a Au/FePc(tBu)4 heterostructure, provided a high surface-to-volume ratio, thus ensuring its high sensitivity to nitrite ions of 0.46 μAμM−1. The sensor based on the Au/FePc(tBu)4/GCE has a low limit of nitrite detection at 0.35 μM, good repeatability, and stability. The interference study showed that the proposed Au/FePc(tBu)4/GCE exhibited a selective response in the presence of interfering anions, and the analytical capability of the sensor was demonstrated by determining nitrite ions in real samples of meat products.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor Based on Iron(II) Phthalocyanine and Gold Nanoparticles for Nitrite Detection in Meat Products

Dorovskikh¹,

Klyamer²,

Fedorenko³

et al. 2022

Sensors

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“…After the characterization of our sensor, and in order to evaluate the advantages offered by f-MWCNT and poly 1,8-DAN, amperometry was chosen as a sensitive technique to detect nitrite in aqueous solution ( Liu et al, 2011 ; Rajalakshmi and John, 2015 ; Zhang et al, 2015 ; Fan et al, 2017 ). Indeed, amperometry was performed in 0.1 M PBS pH 7.2 containing 0.1 M KCl at a fixed potential of 0.9 V vs. Ag/AgCl under continuous stirring.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Sensing of Nitrite Ions Using Modified Electrode by Poly 1,8-Diaminonaphthalene/Functionalized Multi-Walled Carbon Nanotubes

et al. 2022

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A novel electrochemical sensor based on conducting polymer and multi-walled carbon nanotubes was reported for the detection of nitrite ions (NO2−). The hybrid material poly 1,8-Diaminonaphthalene (poly 1,8-DAN)/functionalized multi-walled carbon nanotubes (f-MWCNT) was prepared by using a simple electrochemical approach which is based on the deposition of functionalized multi-walled carbon nanotubes (f-MWCNT) on the surface of the electrode followed by the electropolymerization of 1,8-DAN using cyclic voltammetry. The morphology and the electro-catalytic properties of the obtained electrodes were investigated with Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), Cyclic Voltammetry (CV), and Electrochemical Impedance Spectroscopy (EIS) showing an improvement of the electronic transfer due to the synergic effect between the proprieties of poly 1,8-DAN and f-MWCNT. Under the optimum experimental conditions, the poly 1,8-DAN/f-MWCNT/CPE exhibited excellent electro-catalytic activity towards nitrite detection. The nitrite anodic peak potential decreased by 210 mV compared to the bare carbon paste electrode. The calibration plot of nitrite detection was linear in the range of concentration from 300 to 6500 nM with a low detection limit of 75 nM.

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“…In a recent paper [126], MnO2 nanoflowers were added to an EDOT aqueous solution, and a potentiostatic polymerization on a glassy carbon Composite materials containing PEDOT and metal nanoparticles were also obtained using electrochemical polymerization from an EDOT aqueous solution, including gold nanoclusters on a glassy carbon electrode. The sensor was used for the amperometric determination of nitrite in tap water [124]. The performances of this arrangement evidenced a good catalytic activity attributable to the gold nanoclusters, a low detection limit (17 nM), a wide linear range (0.05-2600 µM), and the absence of interferences like dopamine, ascorbic acid, and uric acid.…”

Section: Metal-containing-pedotmentioning

confidence: 99%

Conducting Polymers in Amperometric Sensors: A State of the Art over the Last 15 Years with a Focus on Polypyrrole-, Polythiophene-, and Poly(3,4-ethylenedioxythiophene)-Based Materials

Pilo,

Sanna,

Spano

2024

Chemosensors

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Conducting polymers are used in a wide range of applications, especially in the design and development of electrochemical sensors. Their main advantage, in this context, is their ability to efficiently modify an electrode surface using the direct polymerization of a suitable monomer in an electrochemical cell, or by physical coating. Additionally, the conducting polymers can be mixed with further materials (metal nanoparticles, carbonaceous materials) to enhance conductivity and analytical features (linear range, limit of detection, sensitivity, and selectivity). Due to their characteristics, conducting polymer-based amperometric sensors are applied to the determination of different organic and inorganic analytes. A view of recent advances in this field focusing on pyrrole, thiophene, and 3,4-ethylenedioxythiophene as starting materials is reported.

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Gold nanoclusters doped poly(3,4-ethylenedioxythiophene) for highly sensitive electrochemical sensing of nitrite

Cited by 34 publications

References 40 publications

Electrochemical Sensor Based on Iron(II) Phthalocyanine and Gold Nanoparticles for Nitrite Detection in Meat Products

Electrochemical Sensor Based on Iron(II) Phthalocyanine and Gold Nanoparticles for Nitrite Detection in Meat Products

Electrochemical Sensing of Nitrite Ions Using Modified Electrode by Poly 1,8-Diaminonaphthalene/Functionalized Multi-Walled Carbon Nanotubes

Conducting Polymers in Amperometric Sensors: A State of the Art over the Last 15 Years with a Focus on Polypyrrole-, Polythiophene-, and Poly(3,4-ethylenedioxythiophene)-Based Materials

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