A novel electrochemical hybrid platform for sensitive determination of the aminoglycoside antibiotic Kasugamycin residues in vegetables

Al-Mhyawi, Saedah R.; Abdel-Tawab, Muhammed Abdel-Hamied; Nashar, Rasha M. El

doi:10.1016/j.foodchem.2023.135506

Cited by 15 publications

(7 citation statements)

References 37 publications

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“…The limit of detection (LOD) was calculated as 2.55 μM by the formula LOD = 3 σ / s , where σ is the standard deviation of the blank and s is the slope of the calibration curve. 44,45…”

Section: Resultsmentioning

confidence: 99%

“…The limit of detection (LOD) was calculated as 2.55 μM by the formula LOD = 3σ/s, where σ is the standard deviation of the blank and s is the slope of the calibration curve. 44,45 In comparison with other reported methods (Table S1 †) for the detection of trilobatin, the sensor based on poly-L-cys/ AuNBs/GCE exhibited wide linear ranges and a low detection limit.…”

Section: Detection Of Trilobatin On Poly-l-cys/aunbs/gcementioning

confidence: 90%

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A novel electrochemical sensor based on gold nanobipyramids and poly-l-cysteine for the sensitive determination of trilobatin

Xue

Wang

Li³

et al. 2023

Analyst

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“…The limit of detection (LOD) was calculated as 2.55 μM by the formula LOD = 3 σ / s , where σ is the standard deviation of the blank and s is the slope of the calibration curve. 44,45…”

Section: Resultsmentioning

confidence: 99%

Section: Detection Of Trilobatin On Poly-l-cys/aunbs/gcementioning

confidence: 90%

A novel electrochemical sensor based on gold nanobipyramids and poly-l-cysteine for the sensitive determination of trilobatin

Xue

Wang

Li³

et al. 2023

Analyst

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“…The limit of detection (LOD) and limit of quantification (LOQ) were found to be 0.17 nM (0.06 μg l −1 ) and 0.48 nM (0.18 μg l −1 ), respectively based on the following equations LOD = 3 S/b and LOQ = 10 S/b where S is the standard deviation of the intercept and b is the slope of calibration plot. 57,58 Repeatability, which describes the ability of a technique to give the same result at the same conditions of the measurement, 59,60 was examined for AuNPs/poly(CR)/GCE by recording six successive DPV determinations of 1 μM FAM using the same sensor and the relative standard deviation (RSD) of the results obtained was found to be 2.63%. While reproducibility, representing the possibility of getting the same results of a measurement on changing the time and/ or the place of the measurement was verified for AuNPs/poly(CR)/ GCE through preparing three different modified sensors, 38,61 followed by testing their DPV response for a solution that is 100 μM FAM, and the RSD was found to be 1.51%.…”

Section: Resultsmentioning

confidence: 99%

Application of a Gold /Poly(Congo Red) Modified Electrochemical Sensor Toward Fast and Reliable Detection of the Oxazolidinone Fungicide Famoxadone in Vegetables

Benhawy¹,

Fahmy²,

ElDien³

et al. 2023

J. Electrochem. Soc.

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The synthesis and optimization of an electrochemical sensor based on gold nanoparticles (AuNPs)/ conducting poly Congo red dye (poly(CR)) nanocomposite is reported for the detection of the Oxazolidinone fungicide famoxadone (FAM), an environmentally hazardous material. The modification of a glassy carbon electrode (GCE) was performed using cyclic voltammetry (CV) to deposit poly(CR) while AuNPs were deposited using chronoamperometry. Two linear ranges 0.001 – 1 µM (0.37 – 374.40) µg/L and 3 – 100 µM (1.12 – 37.44) mg/L were recorded using AuNPs/poly (Congo Red)/GCE sensor for FAM with limit of detection (LOD) of 0.17 nM (0.06 µg/L) and limit of quantification (LOQ) of 0.48 nM (0.18 µg/L). The tested sensor showed good stability, reproducibility, and repeatability. in addition, sufficient selectivity towards FAM in the presence of other tested pesticides was shown. Finally, the fabricated sensor was applied for the determination of FAM in vegetables and commercial fungicides formulation, with a recovery range 98.9 - 105.4% and RSD 0.70– 4.46%, which represents its efficiency in comparison with previously reported chromatographic methods.

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“…Furthermore, electrochemical biosensors are robust, cost-effective, offer rapid analysis, require less sample volume, and display excellent disposability and ease of analysis. Moreover, they can be miniaturized into portable handheld devices, which increases their applicability in real-time monitoring and on-site detection [ 166 , 167 , 168 ]. Thus, enormous efforts have been dedicated towards the design and development of novel electrochemical biosensors, due to which significant advances have recently taken place in the field of electrochemical biosensing, aptasensing, and immunosensing.…”

Section: Summary and Future Perspectivesmentioning

confidence: 99%

Recent Developments in the Design and Fabrication of Electrochemical Biosensors Using Functional Materials and Molecules

Theyagarajan

Kim

2023

Biosensors

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Electrochemical biosensors are superior technologies that are used to detect or sense biologically and environmentally significant analytes in a laboratory environment, or even in the form of portable handheld or wearable electronics. Recently, imprinted and implantable biosensors are emerging as point-of-care devices, which monitor the target analytes in a continuous environment and alert the intended users to anomalies. The stability and performance of the developed biosensor depend on the nature and properties of the electrode material or the platform on which the biosensor is constructed. Therefore, the biosensor platform plays an integral role in the effectiveness of the developed biosensor. Enormous effort has been dedicated to the rational design of the electrode material and to fabrication strategies for improving the performance of developed biosensors. Every year, in the search for multifarious electrode materials, thousands of new biosensor platforms are reported. Moreover, in order to construct an effectual biosensor, the researcher should familiarize themself with the sensible strategies behind electrode fabrication. Thus, we intend to shed light on various strategies and methodologies utilized in the design and fabrication of electrochemical biosensors that facilitate sensitive and selective detection of significant analytes. Furthermore, this review highlights the advantages of various electrode materials and the correlation between immobilized biomolecules and modified surfaces.

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A novel electrochemical hybrid platform for sensitive determination of the aminoglycoside antibiotic Kasugamycin residues in vegetables

Cited by 15 publications

References 37 publications

A novel electrochemical sensor based on gold nanobipyramids and poly-l-cysteine for the sensitive determination of trilobatin

A novel electrochemical sensor based on gold nanobipyramids and poly-l-cysteine for the sensitive determination of trilobatin

Application of a Gold /Poly(Congo Red) Modified Electrochemical Sensor Toward Fast and Reliable Detection of the Oxazolidinone Fungicide Famoxadone in Vegetables

Recent Developments in the Design and Fabrication of Electrochemical Biosensors Using Functional Materials and Molecules

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