CuNPs decorated molecular imprinted polymer on MWCNT for the electrochemical detection of l-DOPA

Sooraj, M. P.; Nair, Archana S.; Pillai, Suresh C.; Hinder, Steven J.; Mathew, Beena

doi:10.1016/j.arabjc.2018.06.002

Cited by 22 publications

(9 citation statements)

References 26 publications

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“…Also, the prepared sensor maintained its response for 10 weeks. Recovery values from 98.3% to 102.4% were obtained for pharmaceutical and human urine samples 31 …”

Section: Electrochemical Sensors For Determination Of L‐dopamentioning

confidence: 97%

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Review. Electrochemical sensors used in the determination of L‐Dopa

Georgescu

Staden

2021

Electrochemical Science Adv

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This review is presenting the design and performance of some electrochemical sensors used for the determination of L‐dopa in real samples as reported in a series of relevant scientific papers published in the past 5 years. L‐dopa was intensively studied using electrochemical sensors with applications in the biomedical field, pharmaceutical field and food industry. The determination of L‐dopa is of great importance, due to the fact that it can cross the blood brain barrier (which dopamine can't) and then can be converted to dopamine. Thus, it can be used in treating some disease, such as Parkinson's. Because fast detective methods for L‐dopa determination are required, this paper focused on four types of electrochemical sensors, such as modified carbon paste electrodes, modified glassy carbon electrodes, modified screen‐printed electrodes and modified indium tin oxide electrodes. Each has its advantages and disadvantages and the appropriate sensor should be used depending on the type of application.

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“…Also, the prepared sensor maintained its response for 10 weeks. Recovery values from 98.3% to 102.4% were obtained for pharmaceutical and human urine samples 31 …”

Section: Electrochemical Sensors For Determination Of L‐dopamentioning

confidence: 97%

“…Sooraj et al 31 . developed a novel electrochemical sensor based on copper nanoparticles (CuNPs), MWCNTs and a molecular imprinted polymer (MIPs) modified GCE as presented in Scheme 3 31 for the molecular recognition and determination of L‐dopa in pharmaceutical and human urine samples.…”

Section: Electrochemical Sensors For Determination Of L‐dopamentioning

confidence: 99%

Review. Electrochemical sensors used in the determination of L‐Dopa

Georgescu

Staden

2021

Electrochemical Science Adv

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“…CuNPs and CuNPs-CSF-CNPs-MWCNTs have a characteristic peak of Cu (111) at about 2θ = 43° [29]. The peak corresponding to CuNPs-CSF-CNPs-MWCNTs at around 36° is Cu2O (111), because the nanoparticle characterization process was carried out in the presence of normal atmosphere, that is, in the presence of O2 [30]. At about 2θ = 42° The left and right peaks are characteristic peaks of MWCNTs (110).…”

Section: Characterization Of Cunps-csf-cnps-mwcnts Compositementioning

confidence: 99%

“…Figure 10. LSV (A) curve of CuNPs-CSF-CNPs-MWCNTs/GCE in 0.1 M PBS (pH = 7.0) containing different concentrations of IAA (0.01, 0.1, 5, 10, 20, 30, 40, 50 μM) and SA(4,6,10,14,18,22,26,30 …”

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confidence: 99%

One-Step Co-Electrodeposition of Copper Nanoparticles-Chitosan Film-Carbon Nanoparticles-Multiwalled Carbon Nanotubes Composite for Electroanalysis of Indole-3-Acetic Acid and Salicylic Acid

Kuang

et al. 2022

Sensors

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A sensitive simultaneous electroanalysis of phytohormones indole-3-acetic acid (IAA) and salicylic acid (SA) based on a novel copper nanoparticles-chitosan film-carbon nanoparticles-multiwalled carbon nanotubes (CuNPs-CSF-CNPs-MWCNTs) composite was reported. CNPs were prepared by hydrothermal reaction of chitosan. Then the CuNPs-CSF-CNPs-MWCNTs composite was facilely prepared by one-step co-electrodeposition of CuNPs and CNPs fixed chitosan residues on modified electrode. Scanning electron microscope (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and linear sweep voltammetry (LSV) were used to characterize the properties of the composite. Under optimal conditions, the composite modified electrode had a good linear relationship with IAA in the range of 0.01–50 μM, and a good linear relationship with SA in the range of 4–30 μM. The detection limits were 0.0086 μM and 0.7 μM (S/N = 3), respectively. In addition, the sensor could also be used for the simultaneous detection of IAA and SA in real leaf samples with satisfactory recovery.

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“…CuNPs exhibit good conductivity, high chemical and mechanical stability, and a high specific surface area that makes them suitable for electrochemical sensors. Some researchers have proven that copper nanoparticles electrochemically deposited on the MIP surface are useful in the sensitive detection of drugs and pollutants [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

An Electrochemical Sensor for Sulfadiazine Determination Based on a Copper Nanoparticles/Molecularly Imprinted Overoxidized Polypyrrole Composite

Elamin

Ali

Essousi

et al. 2023

Sensors

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To protect consumers from risks related to overexposure to sulfadiazine, total residues of this antibacterial agent in animal-origin foodstuffs not exceed international regulations. To this end, a new electrochemical sensor based on a molecularly imprinted polymer nanocomposite using overoxidized polypyrrole and copper nanoparticles for the detection of sulfadiazine is elaborated. After optimization of the preparation of the electrochemical sensors, their differential pulse voltammetric signal exhibits an excellent stability and reproducibility at 1.05 V, with a large linear range between 10−9 and 10−5 mol L−1 and a low detection limit of 3.1 × 10−10 mol L−1. The produced sulfadiazine sensor was successfully tested in real milk samples. The combination of the properties of the electrical conduction of copper nanoparticles with the properties of the preconcentration of the molecularly imprinted overoxidized polypyrrole allows for the highly sensitive detection of sulfadiazine, even in real milk samples. This strategy is new and leads to the lowest detection limit yet achieved, compared to those of the previously published sulfadiazine electrochemical sensors.

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CuNPs decorated molecular imprinted polymer on MWCNT for the electrochemical detection of l-DOPA

Cited by 22 publications

References 26 publications

Review. Electrochemical sensors used in the determination of L‐Dopa

Review. Electrochemical sensors used in the determination of L‐Dopa

One-Step Co-Electrodeposition of Copper Nanoparticles-Chitosan Film-Carbon Nanoparticles-Multiwalled Carbon Nanotubes Composite for Electroanalysis of Indole-3-Acetic Acid and Salicylic Acid

An Electrochemical Sensor for Sulfadiazine Determination Based on a Copper Nanoparticles/Molecularly Imprinted Overoxidized Polypyrrole Composite

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