Electrochemical impedance spectroscopy (EIS): An efficiency method to monitor resin curing processes

Han, Ya Fang; Wang, Jixiao; Zhang, Hairui; Zhao, Song; Ma, Qiang; Wang, Zhi

doi:10.1016/j.sna.2016.08.028

Cited by 36 publications

(19 citation statements)

References 35 publications

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“…Impedance spectrum (Nyquist diagram) consists of two major compartments: a semicircle segment at high-frequency regions correlating to the charge-transfer resistance and a linear segment in the low-frequency range corresponding to the diffusion process. The diameter of the semicircle stands for the charge-transfer resistance ( R ct ) at the electrode surface and the straight-line accounting for the diffusion resistance ( Han et al, 2016 ). The Randles equivalent circuit was employed to model the electrochemical impedance data ( Figures 3 , inset).…”

Section: Resultsmentioning

confidence: 99%

High-Performance Voltammetric Aptasensing Platform for Ultrasensitive Detection of Bisphenol A as an Environmental Pollutant

Hassani

Akmal

Maghsoudi

et al. 2020

Front. Bioeng. Biotechnol.

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Section: Resultsmentioning

confidence: 99%

High-Performance Voltammetric Aptasensing Platform for Ultrasensitive Detection of Bisphenol A as an Environmental Pollutant

Hassani

Akmal

Maghsoudi

et al. 2020

Front. Bioeng. Biotechnol.

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“…Electrochemical impedance spectroscopy is considered a powerful technique to characterize a wide variety of electrochemical systems and to determine the contribution of electrolytic processes in such systems . This method has the advantages of separating interfaces in a certain frequency range . Nyquist curves obtained from electrochemical impedance spectroscopy measurements of CS and P(ANI‐co‐PY‐co‐NMP) coated CS (CS/P(ANI‐co‐PY‐co‐NMP)) electrodes in 3.5 % NaCl solution are given in Figure .…”

Section: Resultsmentioning

confidence: 99%

Electrosynthesis of Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole) Terpolymer and Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole)‐TiO₂ Nanocomposite on Steel

Akdag

2020

ChemistrySelect

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film was synthesized in 0.30 M oxalic acid solutions containing 0.05 M aniline + 0.05 M pyrrole + 0.05 M N-methylpyrrole. Poly(aniline-co-pyrrole-co-N-methylpyrrole)-TiO 2 nanocomposites were synthesized in 0.30 M oxalic acid solutions containing 0.05 M aniline + 0.05 M pyrrole + 0.05 M N-methylpyrrole + 0.1/0.4/1.0 gL À 1 TiO 2 .Electrochemical syntheses were performed on the carbon steel (CS) elctrode using cyclic voltammetry technique. The terpolymer and nanocomposites were characterized by SEM, EDX, electrochemical impedance spectroscopy (EIS), open circuit potential-time and anodic polarization techniques. Nanocomposite structures were observed after the addition of TiO 2 nanoparticles into terpol-ymer films and these results was verified via EDX analysis. The results driven by EIS and anodic polarization suggest that, terpolymer and nanocomposite coated electrodes have been shown to have a protective effect against the corrosion of the CS electrode. The nanocomposite coated electrode synthesized in an environment containing 0.4 gL À 1 TiO 2 was found to have higher corrosion resistance in comparison to uncoated electrode, terpolymer coated electrode and electrodes coated with nanocomposites that is synthesized in environments containing 0.1/1.0 gL À 1 TiO 2 . These results showed that the amount of TiO 2 affects the anticorrosive properties of the synthesized nanocomposite.

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“…Impedance spectrum (Nyquist diagram) consists of two major compartments: a semicircle segment at high-frequency regions correlating to the chargetransfer resistance and a linear segment in the lowfrequency range corresponding to the diffusion process. The diameter of the semicircle stands for the charge-transfer resistance (Rct) at the electrode surface and the straight-line accounting for the diffusion resistance (40). The Randles equivalent circuit was employed to model the electrochemical impedance data ( Figure 5, inset).…”

Section: Optimization Of the Analytical Parameters For Psa Determinationmentioning

confidence: 99%

A Sensitive Aptamer-Based Biosensor for Electrochemical Quantification of PSA as a Specific Diagnostic Marker of Prostate Cancer

et al. 2020

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Purpose: The current project aimed to design a simple, highly sensitive, and economical label-free electrochemical aptasensor for determination of prostate-specific antigen (PSA), as the gold standard biomarker for prostate cancer diagnosis. The aptasensor was set up using a screen-printed carbon electrode (SPCE) modified by gold nanoparticles (Au NPs) conjugated to thiolated aptamers. Methods: Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were implemented for electrochemical (EC) characterization of the aptasensor. The determination of PSA was also performed through differential pulse voltammetry (DPV) in [Fe (CN) 6]3-/4- electrolyte solution. Results: The present aptasensor was shown an outstanding linear response in the concentration range of 1 pg/mL - 200 ng/mL with a remarkably lower limit of detection of 0.077 pg/mL. The optimum concentration for PSA separation and the optimum incubation time for antigen-aptamer binding were determined by observing and electing the highest electrochemical responses in a specified time or concentration. Conclusion: According to the results of the specificity tests, the designed aptasensor did not show any significant interactions with other analytes in real samples. Clinical functionality of the aptasensor was appraised in serum samples of healthy individuals and patients examining the PSA level through the fabricated aptasensor and the reference methods. Both methods are comparable in sensitivity. The present fabricated PSA aptasensor with substantial characteristics of ultra-sensitivity and cost-effectiveness can be conventionally built and used for the routine check-up of the men for prostate problems.

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Electrochemical impedance spectroscopy (EIS): An efficiency method to monitor resin curing processes

Cited by 36 publications

References 35 publications

High-Performance Voltammetric Aptasensing Platform for Ultrasensitive Detection of Bisphenol A as an Environmental Pollutant

High-Performance Voltammetric Aptasensing Platform for Ultrasensitive Detection of Bisphenol A as an Environmental Pollutant

Electrosynthesis of Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole) Terpolymer and Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole)‐TiO₂ Nanocomposite on Steel

A Sensitive Aptamer-Based Biosensor for Electrochemical Quantification of PSA as a Specific Diagnostic Marker of Prostate Cancer

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Electrochemical impedance spectroscopy (EIS): An efficiency method to monitor resin curing processes

Cited by 36 publications

References 35 publications

High-Performance Voltammetric Aptasensing Platform for Ultrasensitive Detection of Bisphenol A as an Environmental Pollutant

High-Performance Voltammetric Aptasensing Platform for Ultrasensitive Detection of Bisphenol A as an Environmental Pollutant

Electrosynthesis of Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole) Terpolymer and Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole)‐TiO2 Nanocomposite on Steel

A Sensitive Aptamer-Based Biosensor for Electrochemical Quantification of PSA as a Specific Diagnostic Marker of Prostate Cancer

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Product

Resources

About

Electrosynthesis of Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole) Terpolymer and Poly(aniline‐co‐pyrrole‐co‐N‐methylpyrrole)‐TiO₂ Nanocomposite on Steel