Electrospun porous conductive polymer membranes

Wang, Jingwen; Naguib, Hani E.; Bazylak, Aimy

doi:10.1117/12.923599

Cited by 8 publications

(6 citation statements)

References 35 publications

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“…Generally, however, embedding such special carbon modifications does not necessarily result in very high conductivities. With functionalized single-wall carbon nanotubes (CNTs), a conductivity of 1 S/m was reached [21], while even high amounts of multi-wall CNTs resulted in only 10 nS/cm [22]. Using graphite nanoplatelets as fillers in electrospun polystyrene nanofibers which were cold-and hot-pressed after spinning, Guo et al reached a higher value of approximately 1 S/cm for the highest graphite loading, as depicted in Figure 3 [23].…”

Section: Electrospinning From Conductive Solutions or Meltsmentioning

confidence: 99%

Conductive Electrospun Nanofiber Mats

Błachowicz

Ehrmann

2019

Materials

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Conductive nanofiber mats can be used in a broad variety of applications, such as electromagnetic shielding, sensors, multifunctional textile surfaces, organic photovoltaics, or biomedicine. While nanofibers or nanofiber from pure or blended polymers can in many cases unambiguously be prepared by electrospinning, creating conductive nanofibers is often more challenging. Integration of conductive nano-fillers often needs a calcination step to evaporate the non-conductive polymer matrix which is necessary for the electrospinning process, while conductive polymers have often relatively low molecular weights and are hard to dissolve in common solvents, both factors impeding spinning them solely and making a spinning agent necessary. On the other hand, conductive coatings may disturb the desired porous structure and possibly cause problems with biocompatibility or other necessary properties of the original nanofiber mats. Here we give an overview of the most recent developments in the growing field of conductive electrospun nanofiber mats, based on electrospinning blends of spinning agents with conductive polymers or nanoparticles, alternatively applying conductive coatings, and the possible applications of such conductive electrospun nanofiber mats.

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Section: Electrospinning From Conductive Solutions or Meltsmentioning

confidence: 99%

Conductive Electrospun Nanofiber Mats

Błachowicz

Ehrmann

2019

Materials

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“…25–27 However, pristine PEDOT is insoluble in water, rigid and brittle, with limited applications in stretchable and bendable devices. 28–30…”

Section: Introductionmentioning

confidence: 99%

“…[25][26][27] However, pristine PEDOT is insoluble in water, rigid and brittle, with limited applications in stretchable and bendable devices. [28][29][30] Several literature reports deal with the design, integration and scaling of electrospun ber mats for electrodes and separators in exible supercapacitors that use both aqueous and non-aqueous electrolytes. [31][32][33][34] Elastomers are suitable materials to be utilized in the supercapacitor electrodes' designs due to their mechanical properties that ensure stability of the electrodes upon stretching and bending deformations.…”

Section: Introductionmentioning

confidence: 99%

Highly stretchable and flexible supercapacitors based on electrospun PEDOT:SSEBS electrodes

et al. 2022

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“…Blending with a carrier polymer is usually required to improve the spinability of ICPs, to the detriment of the conductive properties of resulting NFs (Sapountzi et al, 2017;Migliorini et al, 2018). Thus, an alternative can be used to produce conductive NF mats, in which electrospun fibers of a non-conducting polymer, e.g., polyacrylonitrile (PAN) (Laforgue and Robitaille, 2010a;Ekabutr et al, 2013;Liu et al, 2016;Cetin and Camurluz, 2017), poly(ε-caprolactone) (PCL) (Guler et al, 2015), polyamide 6 (PA6) (Granato et al, 2009;Wang et al, 2013), polystyrene (PS) (Nair et al, 2008;Wang et al, 2012), or polyethyleneoxide (PEO) (Nair et al, 2005), serve as a template for ICP growth. Coating of the non-conductive backbone NFs with CP such as PPy can be achieved by electropolymerization (Wang et al, 2013) or by chemical polymerization, starting from Py monomer in solution (Guler et al, 2015;Liu et al, 2016) or in vapor form (Nair et al, 2005(Nair et al, , 2008Granato et al, 2009;Laforgue and Robitaille, 2010a;Wang et al, 2012;Ekabutr et al, 2013;Cetin and Camurluz, 2017).…”

Section: Introductionmentioning

confidence: 99%

Combining Electrospinning and Vapor-Phase Polymerization for the Production of Polyacrylonitrile/ Polypyrrole Core-Shell Nanofibers and Glucose Biosensor Application

2020

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In this work, polyacrylonitrile (PAN) nanofiber mats coated with conductive polypyrrole layers were produced at the surface of gold electrodes by a two-step approach combining electrospinning and vapor phase polymerization. In the first step, smooth and uniform PAN fibers exhibiting an average diameter of 650 ± 10 nm were generated through electrospinning of 12 wt% PAN solutions. The electrospun PAN fibers were impregnated with iron(III)tosylate (FeTos), annealed at 70 • C and used as a robust and stable template for the growth of a thin layer of conductive polymer by co-polymerizing pyrrole (Py) and pyrrole-3-carboyxylic acid (Py3COOH) vapors under nitrogen atmosphere. The carboxyl groups introduced in polypyrrole coatings enabled further covalent binding of a model enzyme, glucose oxidase. The effect of different parameters (concentration of FeTos into the immersion solution, time of polymerization, Py/Py3COOH molar ratio) on the PAN/PPy/PPy3COOH/GOx impedimetric biosensor response was investigated. In the best conditions tested (immersion of the PAN fibers into 20 wt% FeTos solution, polymerization time: 30 min, 1:2 Py/Py3COOH ratio), the biosensor response was linear in a wide range of glucose concentration (20 nM−2µM) and selective toward ascorbic and uric acids. A very low limit of detection (2 nM) compared to those already reported in the literature was achieved. This value enables the determination of glucose in human serum after a large dilution of the sample (normal concentrations: 3.6 mM−6.1 mM range).

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Electrospun porous conductive polymer membranes

Cited by 8 publications

References 35 publications

Conductive Electrospun Nanofiber Mats

Conductive Electrospun Nanofiber Mats

Highly stretchable and flexible supercapacitors based on electrospun PEDOT:SSEBS electrodes

Combining Electrospinning and Vapor-Phase Polymerization for the Production of Polyacrylonitrile/ Polypyrrole Core-Shell Nanofibers and Glucose Biosensor Application

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