Electroanalytical sensing of the antimicrobial drug linezolid utilising an electrochemical sensing platform based upon a multiwalled carbon nanotubes/bromocresol green modified carbon paste electrode

Mohamed, Mona A.; Abdelwahab, Nada S.; Banks, Craig E.

doi:10.1039/c6ay00454g

Cited by 38 publications

(23 citation statements)

References 43 publications

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“…modified a glassy carbon electrode surface with electrochemically reduced graphene oxide‐bentonite composite material and used the absorptive stripping differential pulse voltammetry technique to obtain an LOD value of 0.0337 μM. Another study by Mohamed et al . modified a carbon paste electrode surface with multi‐walled carbon nanotubes‐bromocresol green and found an LOD value of 7.57 x 10 −3 μM.…”

Section: Introductionmentioning

confidence: 99%

Analytical Determination of the Oxazolidinone Antibiotic Linezolid at a Pencil Graphite and Carbon Paste Electrodes

2019

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Electrochemical properties of linezolid, an antibiotic drug, using unmodified renewable pencil graphite and carbon paste electrodes, were investigated from pH 2 to 10 in Britton-Robinson buffer solution. Experimental studies were examined by square-wave (SW) and cyclic voltammetry (CV). Firstly, parameters affecting the performance of both electrode, such as electrode activation, support electrolyte selection, pH effect, interval of potentials, scan rates and voltammetric method parameters were investigated in detail by using square wave voltammetry. Linezolid was not reversibly oxidized in supporting electrolytes solutions, yielding well-defined peaks in the oxidation potential interval. Using the pencil graphite electrode (PGE), a linearity range between peak current and concentration was obtained between 0.01 and 0.2 μg mL À 1 (2.96 × 10 À 8 -5.93 × 10 À 7 M), other one, at carbon paste electrode (CPE), a linearity range between 0.1 and 7.5 μg mL À 1 (2.96 × 10 À 7 -2.22 × 10 À 5 M) was obtained by SWV. The selectivity, sensitivity, precision, and other validation parameters of the developed voltammetric method was evaluated. Lastly, the concentration of linezolid was examined in pharmaceutical and biological samples with standard addition technique.

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Section: Introductionmentioning

confidence: 99%

Analytical Determination of the Oxazolidinone Antibiotic Linezolid at a Pencil Graphite and Carbon Paste Electrodes

2019

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“…Nanotechnology has become one of the most attractive disciplines in science and technology nowadays. The deep interest in nanotechnology is being motivated by various remarkable fields and is leading to a new manufacturing up rising . Nano‐materials such as carbon nanotubes, nanoparticles, or nanocomposite connected with biomolecules are being used for several bioanalytical applications .…”

Section: Introductionmentioning

confidence: 99%

“…Nano‐materials such as carbon nanotubes, nanoparticles, or nanocomposite connected with biomolecules are being used for several bioanalytical applications . Electrochemical methods of analysis have shown to be accurate, sensitive and cost‐effective . Nanocomposite of a variety of shapes, sizes and compositions are changing now a days the bioanalytical measurement.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

et al. 2017

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The electrochemical oxidation of Sotalol (SOT) based on Tetrazolium Blue (TB)/gold nanoparticles (GNPs)‐modified carbon paste electrodes (CPE) have been studied in the presence of sodium lauryl sulphate (SLS). Cyclic voltammetry (CV), differential pulse voltammetry (DPV), chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques have all been utilized within this study. GNPs and TB have a synergetic effect‐giving rise to highly improved electrochemical responses and provide an advantageous platform for the basis of an electrochemical sensor with excellent performance. The experimental parameters, electrodeposition time, pH and scan rate have all been examined and optimized. The sensing of SOT via DPV is found to exhibit a wide linear dynamic range of 1.0×10−7–7.5×10−4 M in pH 2. LOD and LOQ were calculated and found to correspond to 2.5×10−8 M and 8.3×10−8 M, respectively. The suggested sensor has been used successfully for SOT determination in pharmaceutical samples and human urine as real samples. Satisfactory recoveries of analyte from these samples are demonstrated indicating that the suggested sensor is highly suitable for clinical analysis, quality control and a routine determination of SOT in pharmaceutical formulations.

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“…For instance, Zhou et al reported a label-free determination of lead ions by decorated gold nanoparticles on the surface of ordered mesoporous carbon. [38][39][40][41] However, the paraffin oil used as the conventional organic liquid is a non-conductive material, which to some extent attenuates the electrochemical performance of the CPE. 25 In addition, Yang et al utilized a Prussian blue/ ordered mesoporous carbon composite as a conductive support for the preparation of a metolcarb imprinted sensor.…”

Section: Introductionmentioning

confidence: 99%

A highly defective mesoporous carbon – ionic liquid paste electrode toward the sensitive electrochemical determination of rutin

2017

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In this paper, a highly defective mesoporous carbon (DMC) and room temperature ionic liquid 1-butyl-3methylimidazolium hexafluorophosphate (BMIM$PF 6 ) were applied to fabricate a novel carbon paste electrode for the electrochemical sensing of rutin. The electrochemical properties of rutin on the modified electrode (IL/DMC/PE) were carefully investigated by cyclic voltammetry, electrochemical impedance spectroscopy and chronocoulometry. Electrochemical parameters of rutin on the surface of the modified electrode were determined with the electron transfer coefficient (a) as 0.53, the electron transfer number (n) as 2, the heterogeneous electron transfer rate constant (k s ) as 37.1 s À1 , the diffusion coefficient as 1.34 Â 10 À4 cm 2 s À1 and saturated absorption capacity as 10.9 nmol cm À2 . Under the optimal conditions, rutin could be detected in the concentration range from 0.008 mmol L À1 to 4.0 mmol L À1 with the detection limit as 1.17 nmol L À1 (S/N ¼ 3) by square-wave voltammetry. The proposed sensor was further applied successfully for the determination of rutin content in some real samples, including Ruta graveolens extract, pharmaceutical tablets and orange juice.

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Electroanalytical sensing of the antimicrobial drug linezolid utilising an electrochemical sensing platform based upon a multiwalled carbon nanotubes/bromocresol green modified carbon paste electrode

Abstract: The electroanalytical sensing of linezolid is reported using a multiwalled carbon nanotubes (MWCNTs)/bromocresol green (BCG) modified carbon paste electrode.

Cited by 38 publications

References 43 publications

Analytical Determination of the Oxazolidinone Antibiotic Linezolid at a Pencil Graphite and Carbon Paste Electrodes

Analytical Determination of the Oxazolidinone Antibiotic Linezolid at a Pencil Graphite and Carbon Paste Electrodes

Incorporation of Tetrazolium Blue (TB)/Gold Nanoparticles (GNPs) into Carbon Paste Electrode: Application as an Electrochemical Sensor for the Sensitive and Selective Determination of Sotalol in Micellar Medium

A highly defective mesoporous carbon – ionic liquid paste electrode toward the sensitive electrochemical determination of rutin

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