A high-efficiency electrochemical sensor of dopamine based on WS2 nanosheets decorated with dandelion-like platinum–silver nanoparticles

Li, Yingshuang; Fan, Chunhai; Zheng, Jianbin

doi:10.1007/s10854-022-07695-y

Cited by 9 publications

(3 citation statements)

References 66 publications

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“…4f). 21,22 According to Fig. 4d, the N 1s peaks can be attributed to three distinct components: pyridine-N, pyrrolic-N and graphitic-N.…”

Section: Resultsmentioning

confidence: 99%

“…The synergistic effect of nanoflake-nanorod nanostructure enhanced the electrocatalytic properties of WS 2 and their sensors were successfully applied to uric acid (UA) detection. Li et al 22 Demonstrated enhanced activity for DA detection by loading dandelion-like platinum-silver nanoparticles on WS 2 nanosheets. The linear range of the sensor was 2 orders of magnitude wider.…”

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confidence: 99%

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Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS₂ Nanocomposite

Dai

Shi

et al. 2022

J. Electrochem. Soc.

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Dopamine is an important neurotransmitter for organisms and affects their function, so monitoring and detecting dopamine levels is essential. Sensitivity and selectivity of electrochemical sensors for the detection of dopamine usually relies on hybrid nanocomposites. In this context, we designed a micro-regionally restricted hybrid nanocomposite by modulating the micro-nano structure. Using functional groups on nitrogen-doped reduced graphene oxide (N-rGO) to restrict the random growth of tungsten disulfide nanosheets, we obtained a 2D layered material with bidirectional structural support to achieve high specific surface and high activity for application in robust and novel dopamine electrochemical sensors. A facile electrochemical sensor for dopamine detection was fabricated by modifying a screen-printed carbon electrode with the nanocomposite. The sensor exhibits excellent performance of dopamine detection in the wide range of 1 µmol/L100 µmol/L with a detection limit of 0.2 µmol/L and a high sensitivity of 0.56 µA/µmol/L. The optimized sensor shows a good selectivity, satisfactory long-term stability and reproducibility towards DA and a separation of peak potential of 142 mV with uric acid. In addition, the prepared sensor provides favorable recovery in human serum and artificial cerebrospinal solution (aSCF), indicating great potentials in electrochemical detection and biological sensing applications.

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“…4f). 21,22 According to Fig. 4d, the N 1s peaks can be attributed to three distinct components: pyridine-N, pyrrolic-N and graphitic-N.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS₂ Nanocomposite

Dai

Shi

et al. 2022

J. Electrochem. Soc.

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“…Among these, two-dimensional (2D) nanomaterials such as graphene and its inorganic analogues have attracted significant interest in electrochemical applications because of their unique chemical and physical properties [7]. For example, transition metal dichalcogenides (TMDs) have been widely investigated as electrode materials for electrochemical sensing platforms due to their high electrocatalytic properties, chemical stability, low cost and facile synthesis [8][9][10]. WSe2, an important member of TMDs, has received special attention in electrochemical applications [11,12].…”

Section: Introductionmentioning

confidence: 99%

A WSe2@Poly(3,4-ethylenedioxythiophene) nanocomposite based-electrochemical sensor for simultaneous detection of dopamine and uric acid

Tangal

Coban

Çoğal

2022

J. Electrochem. Sci. Eng.

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In the present work, a nanocomposite of two-dimensional WSe2 nanosheets with poly(3,4‑ethylenedioxythiophene (WSe2@PEDOT) was prepared by facile hydrothermal method and characterized in terms of structural and morphological analyses. This nanocomposite was used to modify glassy carbon electrode for the construction of an electrochemical sensing platform for simultaneous determination of dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA). It was found that the incorporation of PEDOT into WSe2 nanosheets exhibited enhanced electrochemical behaviors and electro¬catalytic activity against DA and UA. Using differential pulse voltammetry (DPV) measurements, the WSe2@PEDOT modified electrode displayed wide linear detection ranges of 16 to 466 µM for DA and 20 to 582.5 µM for UA. The electrode also exhibited high selectivity against DA and UA in the presence of major interference of ascorbic acid and other interferent substances.

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Gold‐dendrimer Nanocomposite Based Electrochemical Sensor for Dopamine

et al. 2022

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An electrochemical sensor for dopamine was developed by electrodepositing poly(propylene imine) (PPI) dendrimer and gold nanoparticles (AuNPs) onto a glassy carbon electrode (GCE). Electrochemical characterisation of the sensor was carried out by cyclic voltammetry and electrochemical impedance spectroscopy in ferri/ferrocyanide electrolyte. The nanocomposite elec-trode (GCE-PPI-AuNPs) showed improved electroactive surface area and electrochemical response over bare GCE. The sensor recorded a detection limit of 0.16 μM over a concentration range of 0.1 μM to 125 μM. The sensor was applied for dopamine detection in human serum samples and in the presence of interfering substances such as ascorbic acid and epinephrine.

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A high-efficiency electrochemical sensor of dopamine based on WS2 nanosheets decorated with dandelion-like platinum–silver nanoparticles

Cited by 9 publications

References 66 publications

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS₂ Nanocomposite

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS₂ Nanocomposite

A WSe2@Poly(3,4-ethylenedioxythiophene) nanocomposite based-electrochemical sensor for simultaneous detection of dopamine and uric acid

Gold‐dendrimer Nanocomposite Based Electrochemical Sensor for Dopamine

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A high-efficiency electrochemical sensor of dopamine based on WS2 nanosheets decorated with dandelion-like platinum–silver nanoparticles

Cited by 9 publications

References 66 publications

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS2 Nanocomposite

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS2 Nanocomposite

A WSe2@Poly(3,4-ethylenedioxythiophene) nanocomposite based-electrochemical sensor for simultaneous detection of dopamine and uric acid

Gold‐dendrimer Nanocomposite Based Electrochemical Sensor for Dopamine

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Product

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About

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS₂ Nanocomposite

Novel Electrochemical Sensor Application for Dopamine and Preparation of N-rGO Micro-regionally Constrained WS₂ Nanocomposite