Electrochemistry Preparation of Electrodes based on Polypyrrole and polymethylpyrrole/Manganese Dioxide Particles

Tabchouche, Ahmed; Ourari, Ali; Zoubeidi, Nawal; Zerrouki, Djamal

doi:10.1016/j.egypro.2013.07.115

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…2a, the potential of the polymerization increases as the scan rate increases. 46 Moreover, the capacitance value for the bare GCE and modified GCE were calculated according to the following equations:…”

Section: Resultsmentioning

confidence: 99%

A PCR-Free Genome Detection of Mycobacterium Tuberculosis Complex in Clinical Samples using MWCNT/PPy/KHApNps Modified Electrochemical Nano-Biosensor

Rizi

Meshkat

Chahkandi

et al. 2021

J. Electrochem. Soc.

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In the perspective of tuberculosis (TB) disease, a necessary issue is the short interval of the correct diagnosis to planning and starting appropriate antibiotic treatment. So, at the first step for the diagnosis of Mycobacterium tuberculosis (M. tb) complex, a fast and reliable technique is necessary. The conventional methods have not the sensitivity, discriminatory power, and enough specificity required for immunocompromised persons. The friendly usage, availability, miniaturization, real-time, and continual monitoring properties of nanobiosensors, an interest attracted to them. The formation of a hybridization reaction in DNA biosensors can provide a possibility for point-of-care infectious detection of M. tb in regions with a high burden of tuberculosis. Here, we have developed a rapid, low-cost, PCR-free with high sensitivity and specificity DNA nanobiosensor for M. tb complex detection, using multi-welled carbon nanotubes, polypyrrole, and potassium-substituted hydroxyapatite (KHAp) nanoparticles. The nanocrystalline powder of KHAp was prepared by a facile alkoxide–based sol-gel method. A selectivity assay using Mycobacterium simiae, Rhodococcus, Nocardia, Corynebacterium, exhibited that the proposed biosensor was specific to M. tb complex. This biosensor showed an appropriate linear relationship (R2 = 0.9906) between the increase in peak current and logarithmic target concentrations from 100 pM to 100 nM, with LOD and LOQ of 50.3 and 167.5 pM, respectively. Its suitable sensitivity was 335.914 μA nM−1cm−2. The response time of this biosensor was 51.3 s. The proposed biosensor remained about 75% of its initial activity after 29 d. The potential application of the nano-biosensor was determined by spike-in experiments to obtain recoveries between 73% and 103.7%.

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Section: Resultsmentioning

confidence: 99%

A PCR-Free Genome Detection of Mycobacterium Tuberculosis Complex in Clinical Samples using MWCNT/PPy/KHApNps Modified Electrochemical Nano-Biosensor

Rizi

Meshkat

Chahkandi

et al. 2021

J. Electrochem. Soc.

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“…working, electrode and counter. 26 The tests of electrochemistry involved CV, chronopotentiometry and electrochemical impedance spectroscopy (EIS). These tests were conducted in an aqueous solution of 1M KOH.…”

Section: Resultsmentioning

confidence: 99%

Elucidating Hydrothermally Synthesized CNTs-MnO₂ Composites through Electrochemical Scrutiny for Wielding Electrodes in Energy Storage

Zulfiqar

Khan

Ramay

et al. 2020

ECS J. Solid State Sci. Technol.

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Search of materials with better electrochemical performance is currently one of the key interests around the globe. In this context, the electrochemical characteristics of MnO 2 /CNTs (manganese dioxide/carbon nanotubes) composites prepared in two simple steps have been reported. X-ray diffraction confirmed the structural purity of the composite contents revealing that the intensity of peaks first decreased and after the addition of more CNTs, the intensity of the peaks started to increase. Scanning electron microscope was utilized to examine the surface morphology of MnO 2 /CNTs composites which indicated that with increase of CNTs contents, the granular size of MnO 2 particles slightly decreased. The conductivity was inspected by electrochemical impedance spectroscopy, which demonstrated that increase in CNTs concentration provided conducting channels for charge transportation. The energy density calculations revealed that maximum energy density was observed for the composition with 0.5% CNTs. These characteristics inferred that the composite material could be utilized as an electrode in electric batteries and energy storage devices.

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Preparation of polypyrrole (PPy)-derived polymer/ZrO2 nanocomposites

Yamani

Berenguer

Benyoucef

et al. 2018

J Therm Anal Calorim

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Electrochemistry Preparation of Electrodes based on Polypyrrole and polymethylpyrrole/Manganese Dioxide Particles

Cited by 4 publications

References 12 publications

A PCR-Free Genome Detection of Mycobacterium Tuberculosis Complex in Clinical Samples using MWCNT/PPy/KHApNps Modified Electrochemical Nano-Biosensor

A PCR-Free Genome Detection of Mycobacterium Tuberculosis Complex in Clinical Samples using MWCNT/PPy/KHApNps Modified Electrochemical Nano-Biosensor

Elucidating Hydrothermally Synthesized CNTs-MnO₂ Composites through Electrochemical Scrutiny for Wielding Electrodes in Energy Storage

Preparation of polypyrrole (PPy)-derived polymer/ZrO2 nanocomposites

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Electrochemistry Preparation of Electrodes based on Polypyrrole and polymethylpyrrole/Manganese Dioxide Particles

Cited by 4 publications

References 12 publications

A PCR-Free Genome Detection of Mycobacterium Tuberculosis Complex in Clinical Samples using MWCNT/PPy/KHApNps Modified Electrochemical Nano-Biosensor

A PCR-Free Genome Detection of Mycobacterium Tuberculosis Complex in Clinical Samples using MWCNT/PPy/KHApNps Modified Electrochemical Nano-Biosensor

Elucidating Hydrothermally Synthesized CNTs-MnO2 Composites through Electrochemical Scrutiny for Wielding Electrodes in Energy Storage

Preparation of polypyrrole (PPy)-derived polymer/ZrO2 nanocomposites

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Product

Resources

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Elucidating Hydrothermally Synthesized CNTs-MnO₂ Composites through Electrochemical Scrutiny for Wielding Electrodes in Energy Storage