New acetaminophen amperometric sensor based on ferrocenyl dendrimers deposited onto Pt nanoparticles

Armada, M. Pilar García; Vallejo, Eduardo Arias; Villena, Carlos; Losada, José; Casado, Carmen M.; Alonso, Beatriz

doi:10.1007/s10008-016-3160-4

Cited by 15 publications

(11 citation statements)

References 64 publications

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“…On the other hand, were observed an oxidation peak around 0.4 V and a reduction peak in 0.0 V in the presence of 1.0 mmol L −1 of AC. In accordance with literature, the electrochemical mechanism of AC involves two protons and two electrons in a reversible or quasi‐reversible process depending on the working electrode [43, 47, 48]. In this case, the electrochemical redox mechanism of AC was quasi‐reversible due to the slow kinetics of the reaction at GCE and BiVO 4 ‐DHP/GCE, with ΔE p of 470 and 510 mV, respectively.…”

Section: Resultssupporting

confidence: 83%

“…In the literature, there are reports various methods AC determination using different analytical techniques such as spectrophotometry [36][37][38] and chromatography [39,40]. Electroanalytical methods are also reported utilizing different unmodified and modified carbon electrodes [28,30,[41][42][43][44][45][46][47][48][49][50][51][52][53][54][55]. Additionally, two works has been published in the literature involving the use of PEC sensors for AC determination.…”

Section: Introductionmentioning

confidence: 99%

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Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO₄ Nanoparticles

et al. 2020

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A new and simple photoelectrochemical (PEC) sensor using a glassy carbon electrode (GCE) modified with bismuth vanadate (BiVO4) nanoparticles and dihexadecyl phosphate (DHP) film was useful for acetaminophen (AC) determination. In 0.2 mol L−1 phosphate buffer (pH=9), the GCE without modification exhibited the smaller photocurrent (0.86 μA) when compared with GCE modified with 1.0 mg mL−1 or 2.0 mg mL−1 BiVO4 nanoparticles suspension (5.9 and 34 μA, respectively). Based on the photocurrent signal generated through the interaction between GCE, BiVO4 and the energy of visible light a chronoamperometric method for AC determination was developed. The AC linear range concentration from 0.099 to 0.99 μmol L−1 and limits of detection and quantification of 0.027 and 0.091 μmol L−1, respectively, was obtained. The proposed method was applied to the AC determination in commercial drugs and tap water with satisfactory accuracy and precision. Moreover, the PEC construction was easy and had a short response time, which might confer higher sample throughput for the method.

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO₄ Nanoparticles

et al. 2020

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“…As one can see, all electrodes in a non-aqueous solution (Figure A–C) show cathodic and anodic peak separations (Δ E p ) that are practically constant as the scan rate increases, and the Δ E p values are only marginally greater than zero (Table ). This fact indicates the absence of kinetic limitations. , In addition, a linear relationship between the peak currents and the scan rate was observed (insets in the graphs of Figure ), indicating the surface-confined nature of the ferrocenyl groups and the nonexistence of charge percolation. In other words, the films show behavior like that of a monolayer film …”

Section: Resultsmentioning

confidence: 98%

Metallodendrimers Unveiled: Investigating the Formation and Features of Double-Decker Silsesquioxane-Based Silylferrocene Dendrimers

Mrzygłód,

García Armada,

Rzonsowska

et al. 2023

Inorg. Chem.

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Dendrimers exhibiting reversible redox properties have attracted extensive attention for their potential as electron transfer mediators, catalysts, and molecular sensors. In this study, we introduce intriguing G1 and G2 dendrimers featuring double-decker silsesquioxane cores and silylferrocene moieties. Through a carefully orchestrated sequence of condensation, reduction, and hydrosilylation reactions, these compounds were synthesized and comprehensively characterized spectroscopically and spectrometrically. Our investigation also encompassed the examination of their properties, including thermal stability, solubility in common organic solvents, and electrochemical behavior. We determined that these dendrimers possess the capability to form monolayers on platinum electrodes, which we conclusively demonstrated through the probing of cyclic voltammetry, electrochemical impedance spectroscopy, and scanning electron microscopy imaging. Notably, this study marks the first-ever example of modifying doubledecker silsesquioxane cores with ferrocene groups while simultaneously representing one of the scarce instances of dendrimers exhibiting an open double-decker silsesquioxane core.

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“…In addition, it can be concluded that the HNC-Rh-(ImS3-14) sensor presents good sensitivity and a low limit of detection in comparison to results recently published for similar studies ( Table 2). Given the fact that the sensor preparation is fast, easy and yields good analytical parameters, this represents a suitable method for paracetamol determination [25][26][27][28][29][30][31][32].…”

Section: Resultsmentioning

confidence: 99%

Rhodium Nanoparticles and Halloysite Nanoclay as Electrode Modifiers for Electroanalytical Determination of Paracetamol

Ferreira

Vieira

2017

JAPLR

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Reagents and solutions All reagents, that is, paracetamol, starch, cellulose, chloroform, RhCl 2 , sodium acetate, sodium phosphate, acetic acid, phosphoric acid and sodium hydroxide, were analytical grade (Sigma-Aldrich) and used without further purification. The halloysite nanoclay was purchased from Sigma-Aldrich and contained nanotubes with 30-70nm of diameter and 1-3µm of length. All solutions were prepared in ultrapure water obtained from a Milli-Q System (Millipore, USA) with a resistivity of 18.2MΩ cm-1. The Rh-(ImS3-14) reverse micelle solution was synthesized according to a procedure previously described in the literature [19]. The paracetamol tablets were purchased at a local drugstore.

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New acetaminophen amperometric sensor based on ferrocenyl dendrimers deposited onto Pt nanoparticles

Cited by 15 publications

References 64 publications

Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO₄ Nanoparticles

Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO₄ Nanoparticles

Metallodendrimers Unveiled: Investigating the Formation and Features of Double-Decker Silsesquioxane-Based Silylferrocene Dendrimers

Rhodium Nanoparticles and Halloysite Nanoclay as Electrode Modifiers for Electroanalytical Determination of Paracetamol

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New acetaminophen amperometric sensor based on ferrocenyl dendrimers deposited onto Pt nanoparticles

Cited by 15 publications

References 64 publications

Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO4 Nanoparticles

Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO4 Nanoparticles

Metallodendrimers Unveiled: Investigating the Formation and Features of Double-Decker Silsesquioxane-Based Silylferrocene Dendrimers

Rhodium Nanoparticles and Halloysite Nanoclay as Electrode Modifiers for Electroanalytical Determination of Paracetamol

Contact Info

Product

Resources

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Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO₄ Nanoparticles

Visible Light Photoelectrochemical Sensor for Acetaminophen Determination using a Glassy Carbon Electrode Modified with BiVO₄ Nanoparticles