A sensitive and selective electrochemical sensor based on N, P-Doped molybdenum Carbide@Carbon/Prussian blue/graphite felt composite electrode for the detection of dopamine

Yang, Sen; Zhao, Jianxi; Tricard, Simon; Yu, Laxian; Fang, Jian

doi:10.1016/j.aca.2019.09.077

Cited by 53 publications

(10 citation statements)

References 57 publications

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“…Zirconium oxide (ZrO 2 ) nanoparticles have been used as an electrochemical biosensor platform for oral cancer detection by cyclic voltammetry ( Zong et al, 2007 ; Zhao et al, 2020 ; Rathee et al, 2021 ). A nanostructure material from ZrO 2 nanoparticles on CNTs was used to immobilize myoglobin showing excellent electrocatalytic activity for the reduction of H 2 O 2 ( Yang et al, 2020 ) . On the other hand, titanium dioxide (TiO 2 ) has a large surface area and unique electronic and chemical properties ( Zhang et al, 2011 ; Bai and Zhou, 2014 ; Liu et al, 2017 ; Guerrero et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor for Hydrogen Peroxide Based on Prussian Blue Electrochemically Deposited at the TiO2-ZrO2–Doped Carbon Nanotube Glassy Carbon-Modified Electrode

et al. 2022

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In this investigation, a hydrogen peroxide (H2O2) electrochemical sensor was evaluated. Prussian blue (PB) was electrodeposited at a glassy carbon (GC) electrode modified with titanium dioxide– and zirconia-doped functionalized carbon nanotubes (TiO2.ZrO2-fCNTs), obtaining the PB/TiO2.ZrO2-fCNTs/GC-modified electrode. The morphology and structure of the nanostructured material TiO2.ZrO2-fCNTs was characterized by transmission electron microscopy, the specific surface area was determined via Brunauer–Emmett–Teller, X-ray diffraction, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The electrochemical properties were studied by cyclic voltammetry and chronoamperometry. Titania-zirconia nanoparticles (5.0 ± 2.0 nm) with an amorphous structure were directly synthesized on the fCNT walls, aged during periods of 20 days, obtaining a well-dispersed distribution with a high surface area. The results indicated that the TiO2.ZrO2-fCNT–nanostructured material exhibits good electrochemical properties and could be tunable by enhancing the modification conditions and method of synthesis. Covering of the nanotubes with TiO2-ZrO2 nanoparticles is one of the main factors that affected immobilization and sensitivity of the electrochemical biosensor. The electrode modified with TiO2-ZrO2 nanoparticles with the 20-day aging time was superior regarding its reversibility, electric communication, and high sensitivity and improves the immobilization of the PB at the electrode. The fabricated sensor was used in the detection of H2O2 in whey milk samples, presenting a linear relationship from 100 to 1,000 μmol L−1 between H2O2 concentration and the peak current, with a quantification limit (LQ) of 59.78 μmol L−1 and a detection limit (LD) of 17.93 μmol L−1.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor for Hydrogen Peroxide Based on Prussian Blue Electrochemically Deposited at the TiO2-ZrO2–Doped Carbon Nanotube Glassy Carbon-Modified Electrode

et al. 2022

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“…A monoamine neurotransmitter is a significant bioactive substance in the central nervous and cardiovascular system, which participates in various physiological activities. , Dopamine (DA) is a significant monoamine neurotransmitter in living systems’ biological functions. − The standard DA concentration in human blood and serum is in the range of 10 –6 –10 –9 mol/L . Unfortunately, the DA’s dysfunction concentration in biological fluids leads to many diseases such as Alzheimer’s, Parkinson’s disease, schizophrenia, attention deficit hyperactivity disorder, and dementia. − Hence, there has been an increasing interest in detecting DA levels as a basis for early-stage identification. At present, various approaches have been used for DA detection, including surface plasmonic resonance, spectrophotometry, capillary electrophoresis, electrochemical sensor, high-performance liquid chromatography-mass spectrometry, surface-enhanced Raman spectroscopy, and chemiluminescence. − Among them, useful techniques as noteworthy as the electrochemical sensor have proven ideal for real-time monitoring and point-of-care (POC) tests. − Currently, many types of working electrodes have been reported for the electrochemical sensor, such as carbon paste electrodes, glassy carbon electrodes, carbon fiber microelectrodes, gold electrodes, graphite–polyurethane composite electrodes, graphite electrodes, and carbon ionic liquid electrodes. − These electrodes are operated at laboratory conditions, which are hindering the realization of POC testing .…”

Section: Introductionmentioning

confidence: 99%

Rational Confinement of Yttrium Vanadate within Three-Dimensional Graphene Aerogel: Electrochemical Analysis of Monoamine Neurotransmitter (Dopamine)

Kokulnathan

Ahmed

Chen

et al. 2021

ACS Appl. Mater. Interfaces

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Real-time monitoring of neurotransmitter levels is of tremendous technological demand, which requires more sensitive and selective sensors over a dynamic concentration range. As a use case, we report yttrium vanadate within three-dimensional graphene aerogel (YVO/GA) as a novel electrocatalyst for detecting dopamine (DA). This synergy effect endows YVO/GA nanocomposite with good electrochemical behaviors for DA detection compared to other electrodes. Benefiting from tailorable properties, it provides a large specific surface area, rapid electron transfer, more active sites, good catalytic activity, synergic effect, and high conductivity. The essential analytical parameters were estimated from the calibration plot, such as a limit of detection (1.5 nM) and sensitivity (7.1 μA μM–1 cm–2) with the YVO/GA sensor probe electrochemical approach. The calibration curve was fitted with the correlation coefficient of 0.994 in the DA concentration range from 0.009 to 83 μM, which is denoted as the linear working range. We further demonstrate the proposed YVO/GA sensor’s applicability to detect DA in human serum sample with an acceptable recovery range. Our results imply that the developed sensor could be applied to the early analysis of dementia, psychiatric, and neurodegenerative disorders.

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“…The carbon veil is used in capacitors [28], batteries [29][30][31], corrosion barriers [32] and as an electrothermal material [33,34]. Only a few examples of carbon veil use in electrochemical sensors are known, e.g., for the determination of nitrite ions [35,36], dopamine [37], adenosine-tri-phosphate [38], trace amounts of silver [39]. Thus, a transducer-carbon veil, modified with nanoparticles, may serve as a good sensor.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensor Based on a Carbon Veil Modified by Phytosynthesized Gold Nanoparticles for Determination of Ascorbic Acid

Брайнина

Bukharinova

Stozhko

et al. 2020

Sensors

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An original voltammetric sensor (Au-gr/CVE) based on a carbon veil (CV) and phytosynthesized gold nanoparticles (Au-gr) was developed for ascorbic acid (AA) determination. Extract from strawberry leaves was used as source of antioxidants (reducers) for Au-gr phytosynthesis. The sensor was characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy and electrochemical methods. Optimal parameters of AA determination were chosen. The sensor exhibits a linear response to AA in a wide concentration range (1 μM–5.75 mM) and a limit of detection of 0.05 μM. The developed sensor demonstrated a high intra-day repeatability of 1 μM AA response (RSD = 1.4%) and its stability during six weeks, selectivity of AA determination toward glucose, sucrose, fructose, citric, tartaric and malic acids. The proposed sensor based on Au-gr provides a higher sensitivity and a lower limit of AA detection in comparison with the sensor based on gold nanoparticles synthesized by the Turkevich method. The sensor was successfully applied for the determination of AA content in fruit juices without samples preparation. The recovery of 99%–111% and RSD no more than 6.8% confirm the good reproducibility of the juice analysis results. A good agreement with the potentiometric titration data was obtained. A correlation (r = 0.9867) between the results of AA determination obtained on the developed sensor and integral antioxidant activity of fruit juices was observed.

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A sensitive and selective electrochemical sensor based on N, P-Doped molybdenum Carbide@Carbon/Prussian blue/graphite felt composite electrode for the detection of dopamine

Cited by 53 publications

References 57 publications

Electrochemical Sensor for Hydrogen Peroxide Based on Prussian Blue Electrochemically Deposited at the TiO2-ZrO2–Doped Carbon Nanotube Glassy Carbon-Modified Electrode

Electrochemical Sensor for Hydrogen Peroxide Based on Prussian Blue Electrochemically Deposited at the TiO2-ZrO2–Doped Carbon Nanotube Glassy Carbon-Modified Electrode

Rational Confinement of Yttrium Vanadate within Three-Dimensional Graphene Aerogel: Electrochemical Analysis of Monoamine Neurotransmitter (Dopamine)

Electrochemical Sensor Based on a Carbon Veil Modified by Phytosynthesized Gold Nanoparticles for Determination of Ascorbic Acid

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