Highly Selective Amide-tethered 4-aminoquinoline-β-lactam Based Electrochemical Sensors for Zn (II) ion Recognition

Kamal, Ajar; Raj, Raghu; Kumar, Vipan; Mahajan, Rakesh Kumar

doi:10.1016/j.electacta.2015.03.014

Cited by 7 publications

(3 citation statements)

References 60 publications

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“…8-aminoquinoline (8-AQ), is a substituted aniline of polycyclic aromatic nitrogen heterocycle, often used as pharmaceutical intermediate [15]. Aminoquinoline is composed of imino and amide functionalities which can act as binding sites in complexation of selective metal ions [16]. Therefore, aminoquinoline is usually used in fluorescent sensors for quantitative assays of Zn 2+ , Fe 3+ , and other metal ions [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A novel electrochemical sensor based on Au nanoparticles/8-aminoquinoline functionalized graphene oxide nanocomposite for paraquat detection

Kong

Yao

et al. 2019

Nanotechnology

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In this paper, a novel electrochemical sensor based on Au nanoparticles/8-aminoquinoline functionalized graphene oxide (AuNPs/GAQ) nanocomposite was developed and tested for the first time for detection of paraquat (PQ). The morphology and composition of AuNPs/GAQ nanocomposite were characterized by various techniques, including transmission electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, and x-ray photoelectron spectroscopy. Cyclic voltammetry and differential pulse voltammetry were utilized to investigate the electrochemical performances of AuNPs/GAQ nanocomposite modified glassy carbon electrode. The obtained modified electrode exhibited excellent electrocatalytic activity towards detection of PQ. Under the optimized conditions, the proposed sensor showed low detection limit (6 nM, S/N=3), wide linear range (0.02-24 μM), high selectivity and good stability. In addition, it was successfully applied for detection of PQ in natural water samples with satisfactory results.

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Section: Introductionmentioning

confidence: 99%

A novel electrochemical sensor based on Au nanoparticles/8-aminoquinoline functionalized graphene oxide nanocomposite for paraquat detection

Kong

Yao

et al. 2019

Nanotechnology

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“…Additionally, the developed sensor's performance can be evaluated in terms of the lowest detectable concentration, often known as the limit of detection, or LOD. The LOD provides critical information regarding a nanomaterial's capacity to detect the lowest concentration 41 . The following concentrations were used in this experiment: 0.0 ppm, 0.2 ppm, 0.6 ppm, 3 ppm, 5 ppm, and 7 ppm.…”

Section: Effect Of Phmentioning

confidence: 99%

A sensitive and rapid determination of zinc ion (Zn2+) using electrochemical sensor based on f-MWCNTs/CS/PB/AuE in drinking water

Ringgit

Siddiquee²,

Saallah³

et al. 2022

Sci Rep

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An electrochemical method for detecting the presence of zinc (Zn2+) ions in drinking water was developed using functionalized multi-walled carbon nanotubes (f-MWCNTs) and chitosan (CS). Numerous cylinder-shaped graphene molecules make up f-MWCNTs, which have a high mechanical and electrical conductivity. CS benefits from nanomaterials include biocompatibility, biodegradability, and low toxicity, which are excellent in capacity absorption of metal ions. Dangerous levels of metal ions such as zinc are currently present in drinking water as a result of human and natural activity. Zinc toxicity is associated with a variety of disorders, including Alzheimer’s, Parkinson's, diabetes, and cancer. This study incorporated f-MWCNTs and CS with Prussian blue (PB) immobilised on a gold electrode (AuE). Several parameters, including as buffers, pH, scan rate, redox indicator, accumulation time, and volume, were optimised using the cyclic voltammetry (CV) method. According to the CV method, the optimal parameters were phosphate buffered saline (0.1 M, pH 2), 5 mM Prussian blue, 200 mVs-1 scan rate, and 5 s accumulation time. Under ideal circumstances, the differential pulse voltammetry (DPV) method was used to determine the Zn2+ ions concentration range of 0.2–7.0 ppm. The limit of detection (LOD) was 2.60 × 10–7 mol L-1 with a correlation coefficient of R2 = 0.9777. The recovery rate of the developed sensor (f-MWCNTs/CS/PB/AuE) ranged from 95.78 to 98.96%. The developed sensor showed a variety of advantages for detecting Zn2+ in drinking water, including a quick setup process, quick detection, high sensitivity, and mobility. This study developed the essential sensor for monitoring Zn2+ levels in drinking water in the future.

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“…Numerous PVC-based membrane sensors using different ionophores for the determination of Zn 2+ ions have been described [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Solid-contact zinc(II) PVC membrane sensors have also been reported [29,30]. An all-solid-state PVC membrane Zn 2+ ion sensor has been fabricated [31].…”

Section: Introductionmentioning

confidence: 99%

New solid-state membrane and coated wire potentiometric sensors for the determination of Zn(II) ions based on nanoparticles

2022

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The first, novel solid-state membrane sensor for Zn(II) determination is developed based on ZnS nanoparticles. ZnS nanoparticles are synthesized by chemical co-precipitation and investigated via X-ray diffraction, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and impedance study. X-ray diffraction shows that the prepared ZnS nanoparticles have an average domain size of 5.72 nm, which is very close to the particle size obtained from TEM observations (6.30 nm). The ZnS nanoparticles are pressed into disks and examined as electroactive solid-state membrane. Solid-state membrane and coated wire sensors are fabricated. They display linear responses over concentration ranges of 1.0 × 10−5 to 1.0 × 10−1 mol L−1 Zn2+ ions with cationic slopes of 28.9±0.2 and 25.9±0.2 mV decade−1 for the solid-state membrane and coated wire sensors, respectively. The lower limits of detection are 2.86 × 10−6 and 4.60 × 10−6 mol L−1 Zn2+ ions for the solid-state membrane and coated wire sensors, respectively. The response time for the two sensors is instantaneous (1 s), and the useful lifetimes for the solid-state membrane and coated wire sensors are long (10 and 6 months, respectively). The solid-state membrane sensor is utilized for the quantification of Zn(II) ions in brass alloys and pharmaceutical preparations.

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Highly Selective Amide-tethered 4-aminoquinoline-β-lactam Based Electrochemical Sensors for Zn (II) ion Recognition

Cited by 7 publications

References 60 publications

A novel electrochemical sensor based on Au nanoparticles/8-aminoquinoline functionalized graphene oxide nanocomposite for paraquat detection

A novel electrochemical sensor based on Au nanoparticles/8-aminoquinoline functionalized graphene oxide nanocomposite for paraquat detection

A sensitive and rapid determination of zinc ion (Zn2+) using electrochemical sensor based on f-MWCNTs/CS/PB/AuE in drinking water

New solid-state membrane and coated wire potentiometric sensors for the determination of Zn(II) ions based on nanoparticles

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