Electrocatalytic oxidation and flow injection analysis of isoniazid drug using a gold nanoparticles decorated carbon nanofibers-chitosan modified carbon screen printed electrode in neutral pH

Nellaiappan, Subramanian; Kumar, Annamalai Senthil

doi:10.1016/j.jelechem.2017.07.049

Cited by 26 publications

(10 citation statements)

References 47 publications

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“…The detailed reaction mechanism and the fabrication of the modified electrode were shown in Schematic 1. As a comparison with the study of Subramanian Nellaiappan and Annamalai Senthil Kumar, it was predicted that isoniazid reacts on the electrode [43]. Schematic 1.…”

Section: 5 Preparation Of Modified Electrode and Electrochemical Oximentioning

confidence: 85%

Preparation and Application of Keggin Silicomolybdic acid Modified Electrode

Liu

Li²,

Jia

2020

Preprint

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An innovative method for the determination of isoniazid tablets is studied through electrochemical method for the modification of glassy carbon electrode (GCE). Polyoxomolybdate, with stable structures, has not been widely used for the determination of substance. In this study, the mentioned polyoxomolybdate was characterized by Fourier transform infrared spectroscopy (FT-IR), UV-vis, X-ray diffraction (XRD), Atomic force microscope (AFM) and X-ray photoelectron spectroscopy (XPS), and used to modify the glassy carbon electrode (GCE). The electrochemical performance of the polyoxomolybdate@GCE was investigated with cyclic voltammetry (CV) and differential pulse voltammetry (DPV), compared with the unmodified electrode, the proposed polyoxomolybdate modified electrode exhibited strong electro-catalytic activities towards isoniazid (INH). Under the optimized conditions, there was linear relationships between the DPV peak currents and the concentrations in the range of 1 × 10 -7 g/L to 3 × 10 -7 g/L for INH (R 2 = 0.9979), with the limit of detection (LOD) of 0.024 μg/L (based on S/N = 3). The modified electrode has proper reproducibility (RSD < 5%), stability, response time (< 3 min) and lifetime (up to 6 days).

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Section: 5 Preparation Of Modified Electrode and Electrochemical Oximentioning

confidence: 85%

Preparation and Application of Keggin Silicomolybdic acid Modified Electrode

Liu

Li²,

Jia

2020

Preprint

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“…A magnetic chitosan sample loaded with a Pd 2+ pincer complex afforded TOF values up to 10 7 h −1 in Suzuki coupling . An electrode, composed of Au(111) gold particles deposited onto chitosan/carbon nanofibers maintained 92 % and 85 % of the original activity in the electrocatalytic oxidation of formaldehyde after 1 and 3 months . The best catalyst with suitable durability in recycling is a magnetite/chitosan support loaded with Pd 2+ ions providing outstanding stability in 60 runs in Heck arylation …”

Section: Discussionmentioning

confidence: 99%

Polydopamine – its Prolific Use as Catalyst and Support Material

Molnár

2020

ChemCatChem

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Polydopamine is a mussel-inspired functional material with a unique ability to form surface coatings. It is a green, environmentally benign product available very easily for a multitude of varied applications. This review attempts to collect useful information with respect to polydopamine-based catalytic studies with the use of polydopamine and modified polydopamine preparations loaded with varied catalytically active species including metal ions and metal particles. Major sections are about the use of polydopamine as catalyst material, utilization of immobilized enzymes, removal of toxic materials, results in organic synthesis, and fuel cell applications. A few examples of chiral catalysis and results of recycling studies are also treated. Data collected and analyzed indicate the importance and high potential of polydopamine-based catalysts in sustainable chemistry. of subunits attacked by an immobilized cyclohexeneamine (5) was suggested to be the transition state of CÀ C bond formation.Edouard et al. prepared catalyst 0.29 % PDA/PU by depositing PDA onto polyurethane foam (PU, 180 � 20 mg, 8 cm 3 ) and used it for the reduction of methylene blue (MB) with NaBH 4 . [48] Activities decreased gradually with repeated uses from 100 % to 35 % in run 11 but partial reactivation was achieved upon keeping the sample at 67°C for 8 h (55 % dropping below 10 % in run 13). Exposure to air at room temperature for six days proved to be somewhat more beneficial (90 % conversion in run 14 decreasing to 48 % in run 18). In a recent study they fabricated two oxidized PDA/PU samples and then loaded them with NaBH 4 . [49] One made by the usual method (dopamine/Tris, rt, 12 h, in air; sample PDA O2 PU), whereas the other was made by treating PU in a mixture of dopamine, NaOAc, and NaIO 4 (pH 5, rt, 24 h). The sample was dried (67°C) and washed thoroughly with water (PDA NaIO4 PU). Both products were dipped into an aqueous solution of NaBH 4 (0.1 M, 10 min) to afford boron contents of 2.37 and 2.11 wt%. The catalysts tested in the degradation of MB showed high activities with efficiencies of 97 % and 98 %, respectively (NaBH 4 /MB molar ratio 40, 177 mg and 209 mg catalysts, 25 min). During five reuses, the pH of the reaction medium increased because of boron loss (0.78 wt% and 0.81 wt%). The activity of PDA NaIO4 PU decreased to 89 % in run five. However, dipping the used sample into a 0.1 M NaBH 4 solution restored the original efficiency of 98 %. This, however, was only a temporary remedy, since a low efficiency of 60 % was measured in run 10. PDA was suggested by the authors to act as a redox mediator to prevent the hydrolysis/oxidation of immobilized borohydride.This formula (5) should be moved up and placed before the paragraph starting with "Edouard et al…"The Zuo group used PDA particles (avg. diameter 240 nm) to induce the reduction of MB and rhodamine B (RhB) with NaBH 4 . [50] Quinone moieties of PDA were assumed to channel electrons from NaBH 4 to the dyes. Indeed, PDA oxidized with NaIO 4 exhibited increased degradatio...

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“…Preparation of modified electrode and electrochemical oxidation of isoniazid in modified GCEThe detailed reaction mechanism and the fabrication of the modified electrode were shown in Schematic 1. As a comparison with the study of Subramanian Nellaiappan and Annamalai Senthil Kumar, it was predicted that isoniazid reacts on the electrode[43].Schematic1. Schematic illustration of electrochemical of fabricating modified electrodes and oxidation of isoniazid at the modified GCE Electrode properties Electrochemical behaviors of electrodes Electrochemical characterization of Compound 1 was done by CV and DPV.…”

mentioning

confidence: 84%

Preparation and Application of Keggin Silicomolybdic acid Modified Electrode

M¹,

Li²

2020

Preprint

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An innovative method for the determination of isoniazid tablets is studied through electrochemical method for the modification of glassy carbon electrode (GCE). Polyoxomolybdate, with stable structures, has not been widely used for the determination of substance. In this study, the mentioned polyoxomolybdate was characterized by Fourier transform infrared spectroscopy (FT-IR), UV-vis, X-ray diffraction (XRD), Atomic force microscope (AFM) and X-ray photoelectron spectroscopy (XPS), and used to modify the glassy carbon electrode. The electrochemical performance of the polyoxomolybdate@GCE was investigated with cyclic voltammetry (CV) and differential pulse voltammetry (DPV), compared with the unmodified electrode, the proposed polyoxomolybdate modified electrode exhibited strong electro-catalytic activities towards isoniazid (INH). Under the optimized conditions, there was linear relationships between the DPV peak currents and the concentrations in the range of 1 × 10 -7 g/L to 3 × 10 -7 g/L for INH (R 2 = 0.9979), with the limit of detection (LOD) of 0.024 μg/L (based on S/N = 3). The modified electrode has proper reproducibility (RSD < 5%), stability, response time (< 3 min) and lifetime (up to 6 days).

show abstract

Electrocatalytic oxidation and flow injection analysis of isoniazid drug using a gold nanoparticles decorated carbon nanofibers-chitosan modified carbon screen printed electrode in neutral pH

Cited by 26 publications

References 47 publications

Preparation and Application of Keggin Silicomolybdic acid Modified Electrode

Preparation and Application of Keggin Silicomolybdic acid Modified Electrode

Polydopamine – its Prolific Use as Catalyst and Support Material

Preparation and Application of Keggin Silicomolybdic acid Modified Electrode

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