A nanocomposite consisting of carbon nanotubes and gold nanoparticles in an amphiphilic copolymer for voltammetric determination of dopamine, paracetamol and uric acid

Liu, Jingcheng; Xie, Yazhen; Wang, Kuan; Zeng, Qingtao; Liu, Ren; Liu, Xiaoya

doi:10.1007/s00604-017-2185-4

Cited by 37 publications

(5 citation statements)

References 36 publications

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“…Table 2 compares the results obtained in this work by PTTPy/GCE and PTTPm/GCE to the results for detection of PAR reported in previous studies. The modified electrode obtained in this work has wide linear detection range than that of some materials [29,35] in Table 2, and has lower detection concentration than that of some materials [32,33,34,36] in Table 2. These results suggest that such polymer modified electrodes can be a promising electrode material for detection of PAR.…”

Section: Resultsmentioning

confidence: 87%

“…In order to investigate durability of these polymer modified materials, the DPV method was employed. Figure 10 displays the operation stability of PTTPy/GCE and PTTPm/GCE for the electrochemical response of PAR was estimated by 10th successive measurements, and the relative standard deviation MWCNT/PSVM/Au/GCE 0.10-1000 0.027 [33] EFTA/graphene/CPE 1.0-150 0.5 [34] MCPE-PtMWCNTs-TX100 NC-GPE First, the drug was obtained as a 0.1 M solution, and then DPV was used to detect its concentration with the results shown in Table 3. An examination of the data in Table 3 indicates that the polymer modified electrode can be used in practical drug detection.…”

Section: Resultsmentioning

confidence: 99%

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Electrochemical Sensor for Detection of Paracetamol Based on Pendent Nitrogen Heterocyclic Ring‐Functionalized Polyterthiophene Derivatives

et al. 2021

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In this work, the donor-acceptor (DÀ A) type conducting polymer with pendent nitrogen heterocycle (pyridine or pyrimidine) grafted polyterthiophene derivatives based electrochemical sensor for paracetamol (PAR) was proposed. The structure of polymer materials was characterized by Fourier transform infrared (FT-IR), UV-vis spectroscopy (UV-vis), X-ray diffraction (XRD), Energy dispersive spectroscopy (EDS), Scanning electron microscopy (SEM), Thermogravimetric (TG) analysis methods. The electrochemical performance of polymer modified electrodes was investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. The effect of pendent nitrogen heterocycles on the structure and electrochemical performance of polymers were studied. The results showed that the non-covalent interactions (hydrogen bonding and π-π stacking) between the polymers and PAR could improve the electrochemical behavior. Compared with that of pyridine, the pyrimidine grafted polymer exhibited better electrochemical performance with a minimum detection concentration of 0.16 μM, a linear range of 0.16 μM-1300 μM, and a minimum detection limit of 0.06 μM.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Electrochemical Sensor for Detection of Paracetamol Based on Pendent Nitrogen Heterocyclic Ring‐Functionalized Polyterthiophene Derivatives

et al. 2021

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“…The limit detection of was 0.01 μM (LOD=3*SD/m, where SD is the standard deviation for ten times blank solution tests, and m is the analytical sensitivity), and high sensitivity (5.11 mA mM −1 cm −2 ). For comparison, the performance of GCE/Cu 3 Mo 2 O 9 sensor and other kinds of electrochemical sensors previously reported were listed in Table , indicating that our work exhibited prominent electrocatalytic ability toward paracetamol with an excellent working linear range and an attractive detection limit.…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic Oxidation and Sensitive Determination of Paracetamol Based on Nanosheets Self‐assembled Lindgrenite Microflowers

Shen

Ding

et al. 2020

Electroanalysis

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In this work, the nanosheet‐assembled lindgrenite microflowers (chemical formula: Cu3Mo2O9) were synthesised through a simple process and low‐cost raw materials at room temperature in aqueous solution without using any surface‐active agent. The tightly interlaced nanosheets, like petals, can increase the specific surface area, which can bring about higher electrocatalytic activity and electroanalysis sensitivity. Thus, lindgrenite microflowers were prepared as an electrochemical sensor and successfully applied in the detection of paracetamol through the modified glass carbon electrode. Furthermore, this electrochemical reaction process was simulated at the ab‐initio level to reveal the catalytic mechanism, and the simulation results agreed well with electrochemical experiments. The electrochemical performance of the lindgrenite microflowers modified glassy carbon electrode (GCE) was studied by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The linearity of paracetamol ranged from 0.05 to 1200 μM (IT method) and 0.05 to 1000 μM (DPV method), low detection limit (0.01 μM) and high sensitivity (5.11 mA mM−1 cm−2) towards paracetamol. Moreover, this sensor was applied to detect paracetamol in human blood serum samples. The excellent results demonstrated that the prepared electrode not only showed a desirable linear range towards paracetamol but also exhibited practical applicability and reliability towards human serum samples detection.

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“…The condition and total mass of composite materials for surface coating kept constant in the whole experiment. 27 Electrochemical measurements.-The electrochemical experiments were carried out by using a Multi Autolab potentiostat. A three electrodes cell compartment was used for each electrochemical analysis.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterisation of Gold Nanoparticles/Poly3,4-Ethylene-Dioxythiophene/Reduced-Graphene Oxide for Electrochemical Detection of Dopamine

Yusoff¹,

Rosli²,

Ghadimi³

2021

J. Electrochem. Soc.

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In this research, the electrochemical method was used as a tool with the newly proposed electrode to detect dopamine (DA) in the urine sample. Gold/Poly3,4-ethylene-dioxythiophene/reduced-graphene oxide (AuNPs/PEDOT/rGO) nanocomposite material was synthesised via the facile one-pot method. The presence of Au/PEDOT on the rGO sheet was investigated by Fourier Transform Infrared (FTIR) spectrometer, Scanning Electron Microscope (SEM) and Ultraviolet-visible (UV–vis) spectroscopy. The synthesised nanocomposite material was then drop-casted on bare glassy carbon electrode (GCE) to improve the detection performance. The electrochemical behaviour of AuNPs/PEDOT/rGO/GCE was studied by Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV). Under optimum condition, the AuNPs/PEDOT/rGO/GCE showed linear voltammetric response in the concentration 20 to 200 nM for DA with the detection limit (LOD) and detection quantitation (LOQ) of 1.04 and 3.47 nM, respectively. This developed sensor was applied to human urine sample with good percentage recovery of 88.31%. It also exhibited good reproducibility and repeatability with relative standard error (RSD) of 9.58% and 2.7%, respectively. Hence, the proposed modified electrode offers an exceptional selectivity and high sensitivity towards the electrochemical sensing of dopamine in human samples.

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A nanocomposite consisting of carbon nanotubes and gold nanoparticles in an amphiphilic copolymer for voltammetric determination of dopamine, paracetamol and uric acid

Cited by 37 publications

References 36 publications

Electrochemical Sensor for Detection of Paracetamol Based on Pendent Nitrogen Heterocyclic Ring‐Functionalized Polyterthiophene Derivatives

Electrochemical Sensor for Detection of Paracetamol Based on Pendent Nitrogen Heterocyclic Ring‐Functionalized Polyterthiophene Derivatives

Electrocatalytic Oxidation and Sensitive Determination of Paracetamol Based on Nanosheets Self‐assembled Lindgrenite Microflowers

Synthesis and Characterisation of Gold Nanoparticles/Poly3,4-Ethylene-Dioxythiophene/Reduced-Graphene Oxide for Electrochemical Detection of Dopamine

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