Voltammetric Behavior of Zinc Hexacyanoferrate (III) Nanoparticles and Their Application in the Detection of N-Acetylcysteine

Santos, Victor José Correia; Maraldi, Vitor Alexandre; Bonfim, Kely Silveira; Souza, Tamires Rocha; Nakamura, Ana Paula Rizzato; Magossi, Maiara de Souza; Magossi, Mariana de Souza; Fernandes, Daniela Silvestrini; Carmo, Devaney Ribeiro do

doi:10.20964/2017.08.06

Cited by 13 publications

(2 citation statements)

References 39 publications

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“…Dos Santos et al. [145] synthesized zinc hexacyanoferrate(III) (ZnHCF) NPs for the modification of graphite paste electrode, which gives a catalytic oxidation response for the determination of NAC. Modification of gold screen–printed electrode (SPE) with AuNPs, carbon nanotubes (MWCNT), and Nafion was used for determination of Cys, Hcys, and GSH [23].…”

Section: Biothiol Analysis and Preconcentrationmentioning

confidence: 99%

Use of metal nanoparticles for preconcentration and analysis of biological thiols

2022

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Metal nanoparticles (NPs) exhibit several unique physicochemical properties, including redox activity, surface plasmon resonance, ability to quench fluorescence, biocompatibility, or a high surface‐to‐volume ratio. They are being increasingly used in analysis and preconcentration of thiol containing compounds, because they are able to spontaneously form a stable Au/Ag/Cu–S dative bond. They thus find wide application in environmental and particularly in medical science, especially in the analysis of biological thiols, the endogenous compounds that play a significant role in many biological systems. In this review article, we provide an overview of various types of NPs that have been applied in analysis and preconcentration of biological thiols, mainly in human biological fluids. We first discuss shortly the types of NPs and their synthesis, properties, and their ability to interact with thiol compounds. Then we outline the sample preconcentration and analysis methods that were used for this purpose with special emphasis on optical, electrochemical, and separation techniques.

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Section: Biothiol Analysis and Preconcentrationmentioning

confidence: 99%

Use of metal nanoparticles for preconcentration and analysis of biological thiols

2022

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“…A new surface can be obtained by gently scraping away the old one. 37,38 Octa(aminopropyl)silsesquioxane salt ((POSS-NH3 + Cl-) synthesis.-The hydrochloride octa(aminopropyl)silsesquioxane was prepared according to a method previously proposed in the literature, 39 according to Fig. 1.…”

Section: Reagentsmentioning

confidence: 99%

Interaction of Polyhedral Oligomeric Silsesquioxanes (POSS) Modified with a Metallocyano Complex and Their Application Use as Sensor for the Detection of Isoniazid

Carmo¹,

Peixoto²,

Felipe³

et al. 2022

J. Electrochem. Soc.

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We prepared polyhedral oligomeric silsesquioxanes (POSS) modified with zinc and ferrocyanide to create an electroactive nanohybrid material (SZnH) that was then characterized using spectroscopic techniques like Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, tunneling electron microscopy, and cyclic voltammetry. Cyclic voltammograms of the SZnH-modified graphite paste electrode (GPSZn) revealed three redox processes with formal potential (Eo') values of 0.33 (I), 0.78 (II) and 1.01 ± 0.01 (III) V (vs Ag/AgCl). The second redox process (II) indicated high current intensities and were used to identify isoniazid in electroanalytical tests. GPSZn was highly sensitive to isoniazid concentrations, presenting two linear response at concentration ranges from 1.0×10-5 to 1.0×10-3 mol L-1, with the lowest limit of detection (LOD) of 3.70 × 10-6 mol L-1. The material appears to be an excellent candidate for use in developing and applying electrochemical sensors in the detection of isoniazid.

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A Cerium Hexacyanoferrate (III) Nanoparticle‐modified Carbon Paste Electrode: Voltammetric Characterization and Behavior in the Presence of Dopamine

2020

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This study describes a fast and simple methodology for the preparation of Cerium (III) Hexacyanoferrate (II) (CeHCF) nanoparticles (NPs). The NPs were characterized by fourier transform infrared (FTIR), x‐ray diffraction (XRD), scanning electron microscopy (SEM) and cyclic voltammetry (CV). The CeHCF cyclic voltammogram indicate a well‐defined redox pair assigned as Fe2+/Fe3+ in the presence of cerium (III), with a formal potential of Eθ′=0.29 V (v=100 mV s−1, KNO3; 1.0 mol/L, pH 7.0). The carbon paste electrode modified with CeHCF (CeHCF‐CPE) was applied to the catalytic electrooxidation of dopamine applying Differential Pulse Voltammetry (DPV). DPV showed linear response at two concentration ranges, from 9.0×10−7 to 8.0×10−6 and 9.0×10−6 to 1.0×10−4 mol/L, with an LOD of 1.9×10−7 and 1.0×10−5 mol/L, respectively. The CeHCF‐CPE exhibited selectivity against substances commonly found in biological samples, with redox potentials close to that of dopamine, such as urea and ascorbic acid (AA). Subsequently the CeHCF‐CPE was successfully applied to the detection of dopamine in simulated urine samples, with recovery percentages ranging between 99 and 103%.

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Voltammetric Behavior of Zinc Hexacyanoferrate (III) Nanoparticles and Their Application in the Detection of N-Acetylcysteine

Abstract: The present work reports the voltammetric behavior of Zinc hexacyanoferrate (III) nanoparticles and their application in the detection of N-acetylcysteine. Two distinct ratios of water/formamide 10:0 (ZnH-1) and 4:6 (ZnH-2) were studied in the complexation reaction of Zn

Cited by 13 publications

References 39 publications

Use of metal nanoparticles for preconcentration and analysis of biological thiols

Use of metal nanoparticles for preconcentration and analysis of biological thiols

Interaction of Polyhedral Oligomeric Silsesquioxanes (POSS) Modified with a Metallocyano Complex and Their Application Use as Sensor for the Detection of Isoniazid

A Cerium Hexacyanoferrate (III) Nanoparticle‐modified Carbon Paste Electrode: Voltammetric Characterization and Behavior in the Presence of Dopamine

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