Antimonene-Modified Screen-Printed Carbon Nanofibers Electrode for Enhanced Electroanalytical Response of Metal Ions

Tapia, María A.; Pérez‐Ràfols, Clara; Oliveira, Filipa M.; Gusmão, Rui; Serrano, Núria; Sofer, Zdeněk; Dı́az-Cruz, José Manuel

doi:10.3390/chemosensors11040219

Cited by 5 publications

(4 citation statements)

References 36 publications

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“…In comparison to the bare screen-printed electrode, the modified electrode showed considerably higher performance and excellent sensitivity, along with a relatively fast analysis time. In work, 50 a two-dimensional (2D) Sb-modified screen-printed carbon nanofiber electrode (2D Sbexf-SPCNFE) was developed to improve the stripping voltammetric determination of Cd(II) and Pb(II), taking advantage of the synergistic effect between the two nanomaterials. After the experimental conditions were optimized, the 2D Sbexf-SPCNFE exhibited much better analytical parameters than the other assessed sensors.…”

Section: Methodsmentioning

confidence: 99%

Development of a Method for Multisensory Stripping Voltammetry in the Analysis of Medical Preparations

Kolesnichenko

2023

ACS Omega

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For the effective dosage of newly developed ophthalmic drugs, an assessment of the dynamics of their concentration in lacrimal fluid over time is required. To express the detection and identification of drugs, new methods are needed that must meet numerous requirements, not the least of which are selectivity, speed, the absence of false-negative results, and costeffectiveness. The possibility of identifying anesthetics (sevoflurane) in lacrimal fluid has been studied using a new electrochemical method of multisensory inversion voltammetry in the electronic tongue and electronic nose format. The measurements were performed on a planar electrode, which is a three-electrode structure. The solution of the test system consisted of 0.05 M KCl, which contained the metal cations Zn 2+ , Cd 2+ , Pb 2+ , Co 2+ , and Hg 2+ at a concentration of 5 × 10 −5 M. It is shown that this method is effective for the determination of anesthetics, and the dynamics of changes in their concentration over time are examined. This study aimed to research the behavioral pharmacokinetics in the lacrimal fluid of the opioid drug sevoflurane in pediatric ophthalmology using multisensory stripping voltammetry in patients during strabismus correction surgery. The dynamics of changes in their concentrations over time were examined. After the instillation of the anesthetics in patients, their concentrations in the tear fluid remained unchanged within 10 min. The list of organic substances that can be determined by multisensory stripping voltammetry has been extended. The class of organic substances determined by the method of multisensory inversion voltammetry has been expanded.

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Section: Methodsmentioning

confidence: 99%

Development of a Method for Multisensory Stripping Voltammetry in the Analysis of Medical Preparations

Kolesnichenko

2023

ACS Omega

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“…A solution of HCl 0.01 mol/L and pH 2 was used as the supporting electrolyte. The excellent analytical effect of the electrode is due to the synergistic effect of the properties of both fused nanomaterials [44]. Another technique involved a rotating disc glassy carbon electrode which was also formed with Sb (Sb-GC-RDE) and a 0.01 M HCl solution.…”

Section: Simultaneous Determination Of Pb and CDmentioning

confidence: 99%

Novel Aspects in the Voltametric Determination of Heavy Metals: A Minireview

Chatziathanasiou,

Girousi

2024

Preprint

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Heavy metals represent a class of chemical elements that includes metalloids, bases and transition metals, lanthanides and actinides. They are distinguished for their toxicity in small concentrations and for their negative effects on the environment and human health. They are present in various samples, mainly in water, industrial waste and food. The determination of heavy metals is carried out mainly by analytical methods, using spectroscopy, spectrometry and electroanalysis, while studies are being carried out for the development of new and faster methodologies and techniques for their analysis, with particular emphasis on voltammetry. This review deals with the determination of heavy metals mainly in environmental samples (water) using voltammetry. In particular, the methods of their determination are evaluated in terms of sensitivity, selectivity and applicability.

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“…The development of these environment-friendly modified electrodes involves a variety of supporting materials, mostly carbon-based, such as glassy carbon, boron-doped diamond, carbon paste, carbon fiber and screen-printed electrodes [21]. Recently, screen-printed carbon electrodes (SPCEs) have been introduced as the best alternative substrates [22][23][24]. The screen-printing technology allows the mass production of highly reproducible, disposable, singleuse SPCEs at a reduced cost with different electrode geometries and provides great versatility of modification procedures applications [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of electrochemical performance of antimony modified screen-printed carbon electrodes

Kifle,

Malakhova,

Ivoilova

et al. 2024

Chim.Tech.Acta

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This study compares the electrochemical performance of screen-printed carbon electrodes (SPCEs) modified with antimony (Sb/SPCEs) under different potentiostatic pre-plating conditions. Neutral Red (NR) was employed as a novel redox probe to evaluate the electrochemical performance of Sb/SPCEs. It was demonstrated that NR in the protonated form performs quasi-reversible redox transformations at bare SPCE and Sb/SPCEs in phosphate buffer solutions (pH 5.5±0.5) in the potential range of (−0.30)–(−0.75) V, where the antimony is not electroactive. Sb/SPCEs were studied electrochemically by cyclic voltammetry (CV) / electrochemical impedance spectroscopy (EIS), and morphologically by scanning electron microscopy (SEM). Cyclic voltammetry investigations revealed the dependence of the electrochemical performance of Sb/SPCEs on the degree of coverage of the substrate with the metal. The obtained CV, EIS, and SEM data are consistent. The lowest charge transfer resistance (Rct) value (6 Ω) was obtained at Sb/SPCE with the highest degree of antimony coverage. To investigate the electroanalytical performance of Sb/SPCEs, nickel (II) ions were utilized as a model analyte. A study of roughness factors and sensitivity towards nickel (II) ions for Sb/SPCEs using two-tailed Pearson's criterion revealed a high degree of correlation between their electrochemical and electroanalytical properties. The results show that using NR as a redox probe can help controlling modification processes during the development of innovative antimony-containing sensors.

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Antimonene-Modified Screen-Printed Carbon Nanofibers Electrode for Enhanced Electroanalytical Response of Metal Ions

Cited by 5 publications

References 36 publications

Development of a Method for Multisensory Stripping Voltammetry in the Analysis of Medical Preparations

Development of a Method for Multisensory Stripping Voltammetry in the Analysis of Medical Preparations

Novel Aspects in the Voltametric Determination of Heavy Metals: A Minireview

Evaluation of electrochemical performance of antimony modified screen-printed carbon electrodes

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