Growth of polypyrrole nanostructures through reactive templates for energy storage applications

Dubal, Deepak P.; Cabán-Huertas, Zahilia; Holze, Rudolf; Gómez‐Romero, Pedro

doi:10.1016/j.electacta.2016.01.078

Cited by 45 publications

(27 citation statements)

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“…The researchers usually distinguish among three different template methods, namely hard-template synthesis, soft-template synthesis [53,63,64], and reactive template synthesis [65]. One of the most used hard templates is nanoporous anodic alumina oxide (AAO) which provided uniform dimension of pores, high density, high aspect ratio and controllable diameter of nanostructures.…”

Section: Preparation Of Ppy Sensing Layersmentioning

confidence: 99%

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Nanostructured Polypyrrole-Based Ammonia and Volatile Organic Compound Sensors

Šetka

Drbohlavová

Hubálek

2017

Sensors

114

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The aim of this review is to summarize the recent progress in the fabrication of efficient nanostructured polymer-based sensors with special focus on polypyrrole. The correlation between physico-chemical parameters, mainly morphology of various polypyrrole nanostructures, and their sensitivity towards selected gas and volatile organic compounds (VOC) is provided. The different approaches of polypyrrole modification with other functional materials are also discussed. With respect to possible sensors application in medicine, namely in the diagnosis of diseases via the detection of volatile biomarkers from human breath, the sensor interaction with humidity is described as well. The major attention is paid to analytes such as ammonia and various alcohols.

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Section: Preparation Of Ppy Sensing Layersmentioning

confidence: 99%

“…Dubal et al used MnO 2 reactive template with three different morphologies, namely nanorods, nanowires and urchins, for chemical synthesis of PPy nanotubes, nanofibers and urchins [65] (Figure 11). They dispersed MnO 2 nanostructures in deionized water and then added 1 M HCl K 2 Cr 2 O 7 and Py monomer.…”

Section: Preparation Of Ppy Sensing Layersmentioning

confidence: 99%

Nanostructured Polypyrrole-Based Ammonia and Volatile Organic Compound Sensors

Šetka

Drbohlavová

Hubálek

2017

Sensors

114

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“…Among energy storage devices the supercapacitors based on nanostructured materials [1] attract considerable attention due to their high power density and cycling stability [2][3][4] . The conducting polymers such as polyaniline and polypyrrole (PPy) are widely investigated as components of electrodes in supercapacitors because they are cheap and demonstrate high electrical conductivity, ability to undergo ox-red reactions and sustainability [5][6][7][8][9][10] . At the same time, low compatibility with water electrolyte and agglomerated morphology of conducting polymers limit their ✩ The synthetic part, structural and theoretical investigation of this combined project was supported by Russian Foundation (grant 16-13-10164 ).…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of chitin nanofibers and polyacrylamide on electrochemical performance of their ternary composite with polypyrrole

Смирнов

Sokolova

Bobrova

et al. 2018

Journal of Energy Chemistry

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“…To date, numerous strategies and materials have been introduced to generate ultrasensitive DA sensors using PPY and other components, such as nanocrystals, carbon nanostructures, and molecular imprinted polymers. For example, diverse PPY nanostructures, such as hexagonal-shaped particles, could be applied as sensing media 23,24 . The addition of nanocrystals was advantageous due to the combination of the unique properties from both PPY and nanocrystals [25][26][27][28][29] .…”

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confidence: 99%

High-Performance Conducting Polymer Nanotube-based Liquid-Ion Gated Field-Effect Transistor Aptasensor for Dopamine Exocytosis

Park

Seo

Kim

et al. 2020

Sci Rep

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In this study, ultrasensitive and precise detection of a representative brain hormone, dopamine (DA), was demonstrated using functional conducting polymer nanotubes modified with aptamers. A high-performance aptasensor was composed of interdigitated microelectrodes (IMEs), carboxylated polypyrrole nanotubes (CPNTs) and DA-specific aptamers. The biosensors were constructed by sequential conjugation of CPNTs and aptamer molecules on the IMEs, and the substrate was integrated into a liquid-ion gating system surrounded by pH 7.4 buffer as an electrolyte. To confirm DA exocytosis based on aptasensors, DA sensitivity and selectivity were monitored using liquid-ion gated field-effect transistors (FETs). The minimum detection level (MDL; 100 pM) of the aptasensors was determined, and their MDL was optimized by controlling the diameter of the CPNTs owing to their different capacities for aptamer introduction. The MDL of CPNT aptasensors is sufficient for discriminating between healthy and unhealthy individuals because the total DA concentration in the blood of normal person is generally determined to be ca. 0.5 to 6.2 ng/mL (3.9 to 40.5 nM) by high-performance liquid chromatography (HPLC) (this information was obtained from a guidebook "Evidence-Based Medicine 2018 SCL " which was published by Seoul Clinical Laboratory). The CPNTs with the smaller diameters (CPNT2: ca. 120 nm) showed 100 times higher sensitivity and selectivity than the wider CPNTs (CPNT1: ca. 200 nm). Moreover, the aptasensors based on CPNTs had excellent DA discrimination in the presence of various neurotransmitters. Based on the excellent sensing properties of these aptasensors, the DA levels of exogeneous DA samples that were prepared from PC12 cells by a DA release assay were successfully measured by DA kits, and the aptasensor sensing properties were compared to those of standard DA reagents. Finally, the real-time response values to the various exogeneous DA release levels were similar to those of a standard DA aptasensor. Therefore, CPNT-based aptasensors provide efficient and rapid DA screening for neuron-mediated genetic diseases such as Parkinson's disease.Materials. Pyrrole (Py, 98%) and pyrrole-3-carboxylic acid (Py-COOH, 95%) were purchased from the Aldrich and Acros Organics. A surfactant, sodium bis(2-ethylhexyl)-sulfosuccinate (AOT, 98%) and hexane (98%) were also purchased from the Aldrich. The conjugation reagent, 4-(4,6-Dimethoxy-1,3,5-triazin-2-yl)−4methyl-morpholinium chloride (DMT-MM, 96%) was purchased from Aldrich. The aptamer was purchased from Bioneer. Inc. Fabrication of carboxylated polypyrrole nanotubes (CPNTs).CPNTs with different diameters (ca. 120 and 200 nm) were prepared by benchmarks in our previous works 51 . A surfactant, AOT (15 mmol), was dissolved in hexane (40 mL), and the solution was stirred for 30 minutes to reach equilibrium. Subsequently, aqueous FeCl 3 solution (7 M, 1 mL) was introduced into the AOT/hexane solution to generate reverse-cylindrical micelles containing iron cations 55 . Finally, a pyrrole (Py)...

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Growth of polypyrrole nanostructures through reactive templates for energy storage applications

Cited by 45 publications

References 50 publications

Nanostructured Polypyrrole-Based Ammonia and Volatile Organic Compound Sensors

Nanostructured Polypyrrole-Based Ammonia and Volatile Organic Compound Sensors

Synergistic effect of chitin nanofibers and polyacrylamide on electrochemical performance of their ternary composite with polypyrrole

High-Performance Conducting Polymer Nanotube-based Liquid-Ion Gated Field-Effect Transistor Aptasensor for Dopamine Exocytosis

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