A new electrochemical sensor based on oxidized capsaicin/multi-walled carbon nanotubes/glassy carbon electrode for the quantification of dopamine, epinephrine, and xanthurenic, ascorbic and uric acids

Silva, Leonardo Vieira da; Santos, Nicholas D. dos; Almeida, Andresa K.A. de; Santos, Dave Di E.R. dos; Santos, Ana Caroline Ferreira; França, Mesaque Carvalho; Lima, Dimas José P.; Lima, Phabyanno Rodrigues; Goulart, Marília Oliveira Fonseca

doi:10.1016/j.jelechem.2020.114919

Cited by 31 publications

(11 citation statements)

References 104 publications

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“…According to previous reports, DA has a larger diffusion coefficient than EP, resulting in a higher anodic peak current for the same concentration of DA and EP. 42…”

Section: Resultsmentioning

confidence: 99%

A novel strategy for the simultaneous discrimination of dopamine and epinephrine by cyclic square wave voltammetry implemented with a customized potentiostat

Deng

Zhao

et al. 2023

New J. Chem.

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“…According to previous reports, DA has a larger diffusion coefficient than EP, resulting in a higher anodic peak current for the same concentration of DA and EP. 42…”

Section: Resultsmentioning

confidence: 99%

A novel strategy for the simultaneous discrimination of dopamine and epinephrine by cyclic square wave voltammetry implemented with a customized potentiostat

Deng

Zhao

et al. 2023

New J. Chem.

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“…Through calculations, the detection limit of the modified GCE using SWCNTs, KB, and AuNPs for dopamine samples dissolved in 0.10 M acetate buffer solution (pH 4) was 0.49 M. Mp-GR/GCE 1.50 [10] PG/GCE 2.00 [11] CTAB/rGO/ZnS/GCE 0.50 [12] Capsaicin Oxidized/MWCNT/GCE 1.78 [6] SWCNT/KB/AuNPs/GCE 0.49 This work Table 3 presents data on studies that have been conducted on the use of modified GCE for dopamine detection. Referring to the data, this research has the smallest detection limit compared to the other research.…”

Section: Limit Of Detection (Lod) From Swcnts Kb and Aunps Modified G...mentioning

confidence: 99%

“…Numerous studies about the detection of dopamine have been done using various types of modified electrodes. The major problem is the presence of the other compounds signals during analysis, such as ascorbic acid, uric acid, urea, and glucose [6]. In the biological fluids, these compounds have concentrations up to 1000 times higher than the concentration of dopamine [1].…”

Section: Introductionmentioning

confidence: 99%

Single-Walled Carbon Nanotubes (SWCNTs), Ketjen Black (KB), and Gold Nanoparticles (AuNPs) Modified Glassy Carbon Electrode for Highly Selective Dopamine Sensing

Ardyansyah¹,

Tominaga²,

Kurniawan³

2022

J. Nano- Electron. Phys.

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Modification of glassy carbon electrode (GCE) with single-walled carbon nanotubes (SWCNTs), Ketjen Black (KB), and gold nanoparticles (AuNPs) has been done. The modification was performed using drop coating method. Comparison performance between unmodified and modified GCE for detecting dopamine was carried out using cyclic voltammetry in 0.10 M acetate buffer solution (pH 4). It was performed in the potential range from -0.80 V to 0.80 V with a scan rate of 100 mV/s at room temperature. The results showed that modified GCE could produce higher anodic peak currents than unmodified GCE. This indicates that the synergistic effect between SWCNTs, KB, and AuNPs has succeeded to improve the performance of GCE. The limit of detection (LOD) of modified GCE for dopamine solution was determined using a calibration curve which plots the concentration variation to the anodic peak current. The calculation of LOD was found to be 0.49 M. Modified GCE showed good selectivity in dopamine without any interference signal from a solution of uric acid (UA), ascorbic acid (AA), glucose (Glu), and urea (U) in 0.10 M acetate buffer solution with pH 4. In this condition, only dopamine increases oxidation and reduction currents. The results indicated that modified GCE using SWCNTs, KB, and AuNPs can be used for highly selective dopamine sensing.

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“…The performance characteristics of other recently reported electrochemical sensors for DA detection are summarized in Table I (73)(74)(75)(76)(77)(78)(79)(80)(81)(82)(83)(84)(85)(86)(87)(88)(89)(90).…”

Section: Elect Rochemical Sensors For Dopa Mine Analysismentioning

confidence: 99%

Actualities in immunological markers and electrochemical sensors for determination of dopamine and its metabolites in psychotic disorders (Review)

et al. 2021

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Psychotic disorders represent a serious health concern. At this moment, anamnestic data, international criteria for diagnosis/classification from the Diagnostic and Statistical Manual of Mental Disorders-5 and the International Classification of Diseases-10 and diagnostic scales are used to establish a diagnosis. The most commonly used biomarkers in psychotic illnesses are those regarding the neuroimmune system, metabolic abnormalities, neurotrophins and neurotransmitter systems and proteomics. A current issue faced by clinicians is the lack of biomarkers to help develop a more accurate diagnosis, with the possibility of initiating the most effective treatment. The detection of biological markers for psychosis has the potential to contribute to improvements in its diagnosis, prognosis and treatment effectiveness. The mixture of multiple biomarkers may improve the ability to differentiate and classify these patients. In this sense, the aim of this study was to analyze the literature concerning the potential biomarkers that could be used in medical practice and to review the newest developments in electrochemical sensors used for dopamine detection, one of the most important exploited biomarkers.

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A new electrochemical sensor based on oxidized capsaicin/multi-walled carbon nanotubes/glassy carbon electrode for the quantification of dopamine, epinephrine, and xanthurenic, ascorbic and uric acids

Cited by 31 publications

References 104 publications

A novel strategy for the simultaneous discrimination of dopamine and epinephrine by cyclic square wave voltammetry implemented with a customized potentiostat

A novel strategy for the simultaneous discrimination of dopamine and epinephrine by cyclic square wave voltammetry implemented with a customized potentiostat

Single-Walled Carbon Nanotubes (SWCNTs), Ketjen Black (KB), and Gold Nanoparticles (AuNPs) Modified Glassy Carbon Electrode for Highly Selective Dopamine Sensing

Actualities in immunological markers and electrochemical sensors for determination of dopamine and its metabolites in psychotic disorders (Review)

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