Simple flow injection system for non-enzymatic glucose sensing based on an electrode modified with palladium nanoparticles-graphene nanoplatelets/mullti-walled carbon nanotubes

Promsuwan, Kiattisak; Kachatong, Napada; Limbut, Warakorn

doi:10.1016/j.electacta.2019.134621

Cited by 43 publications

(26 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the target analyte accumulates on the surface of a working electrode in a preconcentration step, low limits of detection and high sensitivity are possible with AdSV [ 21 , 22 , 23 ]. Electrochemical analysis frequently involves glassy carbon electrodes (GCE) due to their low background current, wide potential window, easy surface modification, hardness, and low cost [ 24 , 25 , 26 , 27 ]. However, the use of bare GCEs is likely to produce sluggish electron transfer [ 14 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

“…Electrochemical analysis frequently involves glassy carbon electrodes (GCE) due to their low background current, wide potential window, easy surface modification, hardness, and low cost [ 24 , 25 , 26 , 27 ]. However, the use of bare GCEs is likely to produce sluggish electron transfer [ 14 , 26 , 27 ]. Furthermore, the limited number of active sites on the surface of GCEs can result in poor selectivity and sensitivity toward target analytes [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Adsorptive Cathodic Stripping Voltammetry for Quantification of Alprazolam

et al. 2021

Self Cite

View full text Add to dashboard Cite

A simple and highly sensitive electrochemical sensor was developed for adsorptive cathodic stripping voltammetry of alprazolam. Based on an electrochemically pretreated glassy carbon electrode, the sensor demonstrated good adsorption and electrochemical reduction of alprazolam. The morphology of the glassy carbon electrode and the electrochemically pretreated glassy carbon electrode were characterized by scanning electron microscopy/energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. The electrochemical behaviors of alprazolam were determined by cyclic voltammetry, and the analytical measurements were studied by adsorptive cathodic stripping voltammetry. Optimized operational conditions included the concentration and deposition time of sulfuric acid in the electrochemical pretreatment, preconcentration potential, and preconcentration time. Under optimal conditions, the developed alprazolam sensor displayed a quantification limit of 0.1 mg L−1, a detection limit of 0.03 mg L−1, a sensitivity of 67 µA mg−1 L cm−2 and two linear ranges: 0.1 to 4 and 4 to 20 mg L−1. Sensor selectivity was excellent, and repeatability (%RSD < 4.24%) and recovery (82.0 ± 0.2 to 109.0 ± 0.3%) were good. The results of determining alprazolam in beverages with the developed system were in good agreement with results from the gas chromatography–mass spectrometric method.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adsorptive Cathodic Stripping Voltammetry for Quantification of Alprazolam

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Glucose oxidase (Gox) selectively oxidizes D-glucose producing H2O2 as a by-product, which is detected through the oxidation of Mo IV to higher valence states and the concomitant decrease of the MLCT chirality in terms of CD performance. NPG a) @NiCo2O4 0-21000 10 [22] PdNPs-GNPs b) /MWCNTs c) 25-10000 8 [23] Co3O4/NiCo2O4DSNCs d) @G e) 10-3520 0.384 [24] Fluorescence PBA-CDs f) 9-900 1.5 [25] APBA-GCDs g) 100-10000 5 [26] UV absorption Fe-CNNPs h) 0-100 0.29 [27] Ser−Hist Dot @AgNPs i) 10-400 53.39 [28] CD spectra Cys-MoO2/Gox 0-1000 0.446 this work a) NPG: nanoporous gold, b) PdNPs-GNPs: palladium nanoparticle-graphene nanoplatelets; c) MWCNTs: multi-walled carbon nanotubes ,d) DSNCs: double-shelled nanocages, e) G: graphene, f) PBA-CDs: phenylboronic acid functionalized carbon dot, g) APBA-GCDs: 3aminobenzeneboronic acid functionalized GQDs, h) Fe-CNNPs: Iron-doped carbon nitride nanoparticles, i) Ser−Hist: serine and histamine biomolecular precursors.…”

Section: Supporting Informationmentioning

confidence: 99%

Metal‐to‐Ligand Charge Transfer Chirality Sensing of d‐Glucose Assisted with GOX‐Based Enzymatic Reaction

Hao

et al. 2020

Adv Materials Technologies

View full text Add to dashboard Cite

show abstract

“…[21]. Mainly the development of nanostructured materials would compensate for the poor electrochemical activity of non‐enzymatic glucose sensors due to their distinctive physical and chemical properties [22–24]. But the metal electrodes have some demerits for commercial application.…”

Section: Introductionmentioning

confidence: 99%

“…In a comprehensive review on electrochemical non-enzymatic glucose sensors, the possible mechanisms of glucose oxidation at metal surfaces and designing of a variety of nanostructured materials to prepare a superior electrode for glucose oxidation was illustrated by Toghill et al [21]. Mainly the development of nanostructured materials would compensate for the poor electrochemical activity of non-enzymatic glucose sensors due to their distinctive physical and chemical properties [22][23][24]. But the metal electrodes have some demerits for commercial application.…”

Section: Introductionmentioning

confidence: 99%

A Highly Sensitive Nonenzymatic Glucose Sensor Based on Carbon Electrode Amplified with Pd_xCu_y Catalyst

2021

View full text Add to dashboard Cite

Approximately global Pd and Pd94Cu6 alloy nano catalysts of average diameter 10.5 and 5.9 nm respectively, have been synthesized hydrothermally by wet chemical reduction and co‐reduction methods without addition of any capping agent. X‐ray diffraction and various microscopic studies are used to characterize the crystal phase and the morphology of the catalysts. Non‐enzymatic amperometric glucose sensors based on these synthesized catalyst materials are tested and compared in alkali at different potentials by cyclic voltammetry and chronoamperometry. The sensors characterized by fixed potential chronoamperometry are found to be sufficiently sensitive to glucose at different negative potentials like −0.65 V, −0.40 V, −0.10 V with respect to Hg/HgO electrode (E0≈0.1 V), where the reactions of glucose oxidation are different. The sensor constructed with Pd94Cu6 nanocatalyst shows an outstanding sensitivity of 10.1 mA cm−2 mM−1 which is considerably higher than that constructed with similarly synthesized Pd nanoparticles at any potential and that found in the literature of Pd based glucose sensors. The lower detection limit and response time obtained with Pd94Cu6 nanoparticles are 10 μM and 3 s respectively. These sensors also exhibit high specificity to glucose and significant anti‐interference property against some common species like ascorbic acid (AA), uric acid (UA) and some monosaccharides whose interfering effects are found to decrease with decrease of potential of glucose oxidation. The electrocatalytic ability of the synthesized Pd and Pd94Cu6 nanoparticles toward glucose oxidation has also found promising in blood sample at different potentials.

show abstract

Simple flow injection system for non-enzymatic glucose sensing based on an electrode modified with palladium nanoparticles-graphene nanoplatelets/mullti-walled carbon nanotubes

Cited by 43 publications

References 48 publications

Adsorptive Cathodic Stripping Voltammetry for Quantification of Alprazolam

Adsorptive Cathodic Stripping Voltammetry for Quantification of Alprazolam

Metal‐to‐Ligand Charge Transfer Chirality Sensing of d‐Glucose Assisted with GOX‐Based Enzymatic Reaction

A Highly Sensitive Nonenzymatic Glucose Sensor Based on Carbon Electrode Amplified with Pd_xCu_y Catalyst

Contact Info

Product

Resources

About

Simple flow injection system for non-enzymatic glucose sensing based on an electrode modified with palladium nanoparticles-graphene nanoplatelets/mullti-walled carbon nanotubes

Cited by 43 publications

References 48 publications

Adsorptive Cathodic Stripping Voltammetry for Quantification of Alprazolam

Adsorptive Cathodic Stripping Voltammetry for Quantification of Alprazolam

Metal‐to‐Ligand Charge Transfer Chirality Sensing of d‐Glucose Assisted with GOX‐Based Enzymatic Reaction

A Highly Sensitive Nonenzymatic Glucose Sensor Based on Carbon Electrode Amplified with PdxCuy Catalyst

Contact Info

Product

Resources

About

A Highly Sensitive Nonenzymatic Glucose Sensor Based on Carbon Electrode Amplified with Pd_xCu_y Catalyst