Experimental sensing and density functional theory study of an ionic liquid mediated carbon nanotube modified carbon-paste electrode for electrochemical detection of metronidazole

Saghravanian, Maliheh; Ebrahimi, Mahmoud; Es’haghi, Zarrin; Beyramabadi, S. Ali

doi:10.17159/0379-4350/2017/v70a5

Cited by 12 publications

(2 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The linear relationship between peak currents and scan rates suggests that the reduction reaction of ZDV compound at MWCNTs‐GCE is adsorptive controlled process [35] . Optimization of glassy carbon electrode modification, the bare GCE was fabricated with different compositions of MWCNTs adapted from previous literature, [36] ZnONPs, EmimTEFS with DMF in constant conditions of ZDV voltammetry determination. The optimum proportions of the electrode modifications are shown in Table 1 which resulted to high current of the ZDV electrochemical reduction signal.…”

Section: Resultsmentioning

confidence: 99%

An Efficient Sensor for the Detection of Zidovudine Based on 1‐Ethyl‐3‐methylimidazolium 1,1,2,2‐tetrafluoroethanesulfonate/ZnO Nanoparticle/MWCNT Glassy Carbon Electrodes**

Xhakaza

Chokkareddy

2021

ChemistrySelect

View full text Add to dashboard Cite

A sensitive, low cost and novel electrochemical sensor based on 1‐ethyl‐3‐methylimidazolium 1,1,2,2‐tetrafluoroethanesulfonate ionic liquid (EmimTFES) combined with multi‐walled carbon nanotubes (MWCNTs) and zinc oxide nanoparticles (ZnONPs) in order to modify the glassy carbon electrode (GCE), has been developed for the first time. It was assessed that this sensor can be used for the rapid detection of the pharmaceutically antiretroviral drug zidovudine (ZDV). The characterization of ZnONPs, MWCNTs‐ZnONPs and MWCNTs‐ZnONPs‐EmimTFES was performed using Transmission electron microscopy (TEM), Ultraviolet Visible spectrophotometer (UV‐Vis), Fourier‐transform infrared spectroscopy (FTIR), X‐ray diffraction (XRD), and Thermogravimetric analysis (TGA). The electrochemical of behaviour of MWCNTs‐ZnONPs‐EmimTFES‐GCE was studied using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. The proposed sensor shows high electrocatalytic activity towards ZDV reduction over the concentration range of 0.2 μM to 2.0 μM. In addition, the limit of detection (LOD) of 0.0029 μM and limit of quantification (LOQ) of 0.0416 μM was obtained. Under optimal conditions the ionic liquid‐based sensor showed high selectivity, stability and sensitivity for ZDV detection, making it a suitable sensor for rapid determination of ZDV.

show abstract

Section: Resultsmentioning

confidence: 99%

An Efficient Sensor for the Detection of Zidovudine Based on 1‐Ethyl‐3‐methylimidazolium 1,1,2,2‐tetrafluoroethanesulfonate/ZnO Nanoparticle/MWCNT Glassy Carbon Electrodes**

Xhakaza

Chokkareddy

2021

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…Their theoretical results are useful to understand the selectivity of the modified surface for metal ions (Cu 2+ > Pb 2+ > Cd 2+ ) sensing. Saghravanian et al [19] utilized the DFT to understand metronidazole non-covalent interaction with SWCNT. The authors calculated the binding energy between metronidazole (with different orientations) and SWCNT.…”

Section: Introductionmentioning

confidence: 99%

Pre-post electron transfer regioselectivity at glycine modified graphene electrode interface for voltammetric sensing applications

Jayaprakash

Flores‐Moreno

Swamy

et al. 2022

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

In the last few years, glycine (GL) showed good experimental evidence as an electron transfer (ET) mediator at the carbon (in particular graphene (GR)) interface. However, ET properties of GL modified GR interface are still not known completely. These can be achieved using density functional theory-based models. Modelling of modified carbon electrode interfaces is essential in electroanalytical chemistry to get insights into their electronic and redox properties. Here we have modelled glycine modified graphene interface to find out its interfacial redox ET properties. Conceptual density functional theory concepts like frontier molecular orbital (FMO) theory and analytical Fukui functions were utilized to predict the ET sites on the modified graphene surface. It is shown that at the glycine-modified graphene interface, amine groups act as additional oxidation sites and carboxylic acid groups as additional reduction sites. Therefore, glycine acts as an ET mediator at the graphene-based electrode interface. The obtained results are well supported by previously published experimental reports.

show abstract

Designing disposable hand-made screen-printed electrode using conductive ink for electrochemical determination of dopamine

Dokur,

Uruc,

Kurteli

et al. 2023

Ionics

View full text Add to dashboard Cite

Experimental sensing and density functional theory study of an ionic liquid mediated carbon nanotube modified carbon-paste electrode for electrochemical detection of metronidazole

Abstract: KEYWORDSCarbon paste electrode, metronidazole, differential pulse voltammetry, single-walled carbon nanotube, density functional theory, 1-butyl-3-methylimidazolium tetrafluoroborate.

Cited by 12 publications

References 63 publications

An Efficient Sensor for the Detection of Zidovudine Based on 1‐Ethyl‐3‐methylimidazolium 1,1,2,2‐tetrafluoroethanesulfonate/ZnO Nanoparticle/MWCNT Glassy Carbon Electrodes**

An Efficient Sensor for the Detection of Zidovudine Based on 1‐Ethyl‐3‐methylimidazolium 1,1,2,2‐tetrafluoroethanesulfonate/ZnO Nanoparticle/MWCNT Glassy Carbon Electrodes**

Pre-post electron transfer regioselectivity at glycine modified graphene electrode interface for voltammetric sensing applications

Designing disposable hand-made screen-printed electrode using conductive ink for electrochemical determination of dopamine

Contact Info

Product

Resources

About