Self-Assembly of Gold Nanoparticles on Gold Core-Induced Polypyrrole Nanohybrids for Electrochemical Sensor of Dopamine

Ding, Junwei; Zhang, Kai; Xu, Wei; Su, Zhiqiang

doi:10.1142/s1793292015501155

Cited by 12 publications

(5 citation statements)

References 52 publications

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“…In order to ensure the detection performance of nonenzymatic electrochemical sensors, a suitable catalyst is necessary [ 12 , 13 ]. Generally speaking, metal nanoparticles (MNPs) are the major candidates for the fabrication of electrochemical sensors.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Carbon Nanofibers Decorated with Platinum Nanoparticles for Non-Enzymatic Electrochemical Sensing of H2O2

Mingfa

Zhang

et al. 2015

Nanomaterials

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Abstract:We describe the preparation of nanoporous carbon nanofibers (CNFs) decorated with platinum nanoparticles (PtNPs) in this work by electrospining polyacrylonitrile (PAN) nanofibers and subsequent carbonization and binding of PtNPs. The fabricated nanoporous CNF-PtNP hybrids were further utilized to modify glass carbon electrodes and used for the non-enzymatic amperometric biosensor for the highly sensitive detection of hydrogen peroxide (H2O2). The morphologies of the fabricated nanoporous CNF-PtNP hybrids were observed by scanning electron microscopy, transmission electron microscopy, and their structure was further investigated with Brunauer-Emmett-Teller (BET) surface area analysis, X-ray photoelectron spectroscopy, X-ray diffraction, and Raman spectrum. The cyclic voltammetry experiments indicate that CNF-PtNP modified electrodes have high electrocatalytic activity toward H2O2 and the chronoamperometry measurements illustrate that the fabricated biosensor has a high sensitivity for detecting H2O2. We anticipate that the strategies utilized in this work will not only guide the further design and fabrication of functional nanofiber-based biomaterials and nanodevices, but also extend the potential applications in energy storage, cytology, and tissue engineering. OPEN ACCESSNanomaterials 2015, 5 1892

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Section: Introductionmentioning

confidence: 99%

Nanoporous Carbon Nanofibers Decorated with Platinum Nanoparticles for Non-Enzymatic Electrochemical Sensing of H2O2

Mingfa

Zhang

et al. 2015

Nanomaterials

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“…[1][2][3] Polypyrrole (PPy), is one of the most promising CPs because of its ease of synthesis, good redox property, high conductivity, and excellent environmental stability. [1][2][3] Polypyrrole (PPy), is one of the most promising CPs because of its ease of synthesis, good redox property, high conductivity, and excellent environmental stability.…”

Section: Introductionmentioning

confidence: 99%

“…Conducting polymers (CPs) are suitable host matrices due to their advantages of permitting a facile electronic charge ow through the polymer matrix in electrochemical processes. [1][2][3] Polypyrrole (PPy), is one of the most promising CPs because of its ease of synthesis, good redox property, high conductivity, and excellent environmental stability. 4 The presence of conjugated double bonds along the backbone of the polymer chain, unusually low ionization potentials and high electron affinities are basic requirements for the special electrical properties of PPy.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of polypyrrole nanoplates decorated with silver and gold nanoparticles for sensor applications

et al. 2015

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Polypyrrole nanoplates (PPyNPTs) were successfully synthesized via in situ chemical oxidation polymerization of pyrrole molecules. Furthermore, silver and gold nanoparticles (Ag and AuNPs) were assembled onto the as-prepared PPyNPTs by electrostatic interaction to fabricate two nanohybrids of PPyNPT-Ag and PPyNPT-Au, and their structures were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. The optimal parameters for creating uniform PPyNPT-Ag and PPyNPT-Au nanohybrids were obtained by controlling the reactive conditions, and the created PPyNPT-Ag andPPyNPT-Au nanohybrids were then immobilized onto glassy carbon electrodes and applied to construct hydrogen peroxide (H 2 O 2 ) and dopamine (DA) sensors. We found that the fabricated sensors with PPyNPT-Ag and PPyNPT-Au nanohybrids are highly specific for sensing H 2 O 2 and DA, respectively. The PPyNPT-Ag based H 2 O 2 sensor exhibited a fast amperometric response to H 2 O 2 with a linear range from 0.01 mM to 3.01 mM and a detection limit of 1.8 mM, and the PPyNPT-Au based DA sensor has a linear detection range from 1 mM to 5.201 mM and a detection limit of 0.36 mM.

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“…The conducting polymers (CPs) are suitable for favorable conditions to allow conducting the charge current of a simple electron by the polymer network in electrochemical procedures [1][2][3]. PPy is one of the most commonly used CPs considering its simplicity of blending, good conductivity, and ISSN: 0067-2904…”

Section: Introductionmentioning

confidence: 99%

Preparation of PPy-WO3 Nano-composite for Supercapacitor Applications

Hameed

Ibrahim

2021

eijs

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In this work, polypyrrole (PPy) composites were chemically prepared by a chemical oxidation method. Also, Tungsten Trioxide (WO3) nanoparticles were prepared and added in certain proportions to PPy. The structure properties were studied for the polypyrole and tungesten trioxide separately before mixing them together. The X-ray diffraction (XRD) analysis revealed a hexagonal WO3 and a triclinic PPy. It was observed that the nano-composite prepared by the addition of WO3 with 10 and 20% volume ratios to PPy shows a triclinic phase with the presence of hexagons. The molecular structures of PPy, WO3, and PPy–WO3 nano composites were depicted by Fourier-transform infrared spectroscopy (FTIR) in the scope of 400–4000 cm-1. The supercapcitors of PPy and PPy-WO3 were examined by calculating the figure of merit of the electrode (PPy and PPy-WO3) using cyclic voltammetry (CV), galvanostatic charge and discharge (GCD), and electrochemical impedance spectroscopy (EIS) techniques. It was found that the highest value of capacity (266.62 F/g) is obtained at 20% WO3 ratio.

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Self-Assembly of Gold Nanoparticles on Gold Core-Induced Polypyrrole Nanohybrids for Electrochemical Sensor of Dopamine

Cited by 12 publications

References 52 publications

Nanoporous Carbon Nanofibers Decorated with Platinum Nanoparticles for Non-Enzymatic Electrochemical Sensing of H2O2

Nanoporous Carbon Nanofibers Decorated with Platinum Nanoparticles for Non-Enzymatic Electrochemical Sensing of H2O2

Fabrication of polypyrrole nanoplates decorated with silver and gold nanoparticles for sensor applications

Preparation of PPy-WO3 Nano-composite for Supercapacitor Applications

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