Three-dimensional carbon fiber electrodes prepared by electrospinning and solution blowing are shown to be excellent electrode materials for bioelectrochemical systems such as microbial fuel cells or electrolysis cells. The bioelectrocatalytic anode current density is reach values of up 30 A m−2, which represents the highest reported electroactive biofilms.

Abstract This article reports a novel hybrid multiscale carbon‐fiber/epoxy composite reinforced with self‐healing core‐shell nanofibers at interfaces. The ultrathin fibers were fabricated by means of coelectrospinning, in which liquid dicyclopentadiene (DCPD) as the healing agent was enwrapped into polyacrylonitrile (PAN) to form DCPD/PAN nanofibers. These incorporated interfaces neighboring carbon‐fiber fabrics prior resin infusion and formed interlayers after curing. are expected function...

The industrial scale application of graphene and other functional materials in the field electronics has been limited by inherent defects, lack simple deposition methods. A spray method is developed that uses a supersonic air jet for commercially available reduced oxide (r‐GO) suspension. r‐GO flakes are used as received, which pre‐annealed pre‐hydrazine‐treated, do not undergo any post‐treatment. part considerable kinetic energy entrained stretching upon impact with substrate. resulting...

Different techniques for encapsulating self-healing materials (liquid monomers) inside polymer fibers [polyacrylonitrile (PAN)] and amorphous turbostratic carbon nanotubes (CNTs) were explored. Two types of healing used: dicyclopentadiene (DCPD) isophorone diisocyanate. To encapsulate the nanofibers, coelectrospinning, emulsion electrospinning solution blowing used. The presence was corroborated by using optical scanning electron microscopy, energy dispersive X-ray spectroscopy, preferential...

Nanofibers represent an attractive novel drug delivery system for prolonged and controlled release. However, sustained release of hydrophilic drugs, like ciprofloxacin hydrochloride (CIP), from polymeric nanofibers is not easy task. The present study investigates the effect different hydrophobic polymers (PCL PMMA) alone in monolithic or with (PVA, PEO, chitosan) blended aiming to achieve CIP PCL was 46% PMMA just 1.5% over 40 day period. Thus, holds great promise modification nanofibers....

Sustained controlled drug release is one of the prominent contributions for more successful treatment outcomes in case several diseases. However, incorporation hydrophilic drugs into nanofibers, a promising novel delivery system, and achieving long-term sustained still pose challenging task. In this work we demonstrated robust method avoiding burst from 2 to 4 weeks using core–shell nanofibers with poly(methyl methacrylate) (PMMA) shell monolithic poly(vinyl alcohol) (PVA) core or type...

Solution blowing is one of the most industrially viable processes for mass production nanofibers without significant change trade practices. In this work a novel scalable approach to nanofiber by solution demonstrated using Biax die. Blends biopolymer soy protein isolate Clarisoy 100 and poly(ethylene oxide) (Mw = 600 kDa) were blown as aqueous solutions spinneret with 8 rows 41 concentric annular nozzles. Nanofiber mats collected on drum, samples an area order 0.1–1 m2 formed in about 10 s....

Solution blowing of soy protein (sp)/polymer blends was used to form monolithic nanofibers. The fibers were blown from and nylon-6 in formic acid. sp/nylon-6 ratio achieved dry nanofibers formed using solution the blend equal 40/60. In addition, core-shell realized with being core supporting polymer shell. shells nylon-6. 32/68. developed present work contain significant amounts hold great potential various applications nonwovens.

The Leidenfrost effect is a technically and industrially important phenomenon that severely restricts heat removal from high-heat-flux surfaces. A simple remedy to the provided by polymer nanofiber mats created deposited electrospinning on stainless steel influence of hydrodynamics cooling efficiency single drop impact onto hot surfaces has been investigated experimentally. evolution drops recorded high-speed complimentary metal-oxide semiconductor camera, whereas temperature was measured...

Scalable and economical manufacturing of flexible transparent conducting films (TCF) is a key barrier to widespread adoption low‐cost electronics. Here, simple, robust, scalable method TCF formation using supersonic kinetic spraying demonstrated. Silver nanowire (AgNW) suspensions are sprayed at speed produce self‐sintered AgNWs on substrates. These display remarkably low sheet resistance, <10 Ω sq −1 , combined with high transmittance, >90%. electrically conducting, transparent,...

In the present work high-heat-flux surfaces, which should serve at temperatures of up to 200 °C, were covered by electrospun polymer nanofiber mats with thicknesses about 30 μm. Then, four different metals electroplated on separate mats, namely, copper, silver, nickel, and gold. As a result, copper-plated took an appearance resembling that small Australian thorny devil lizard (i.e., they became very rough nanoscale) acquired high thermal diffusivity. Silver-plated also because dendritelike...

We achieved the intercalation of different types paraffins and their mixtures with triglycerides inside carbon nanotubes (CNTs) by means self-sustained diffusion followed a proper rinsing. The CNTs were investigated using TEM, which showed that they intercalated clean outside. For melting can be realized in an interval about 20 °C, opens new opportunities for Phase Change Materials (PCM) attracting attention relation to solar energy storage, cooling power electronic devices energy-saving...

The work aims at the experimental and theoretical study of mechanism meltblowing. Meltblowing is a popular method producing polymer microfibers nanofibers en masse in form nonwovens via aerodynamic blowing melt jets. However, its physical aspects are still not fully understood. process involves complex interplay aerodynamics turbulent gas jets with strong elongational flows melts, none them uncovered explained. To evaluate role pulsations (produced by eddies jet) meltblowing, we studied...

This work reports a systematic study of drop impacts polar and non-polar liquids onto different electrospun nanofiber membranes (of 8–10 μm thickness pore sizes 3–6 μm) with an increasing degree hydrophobicity. The studied were water, FC 7500 (Fluorinert fluid) hexane. nanofibers used from polyacrylonitrile (PAN), nylon 6/6, polycaprolactone (PCL) Teflon. It was found that for any liquid/fiber pair there exists threshold impact velocity (∼1.5 to 3 m s−1) above which water penetrates...

The 20–50 nm nanofibers hold great promise as functional fabrics, biomedical materials, filters, fuel cell membranes, ultra-speed fiber optics, electronics and sensorics. In our novel process of supersonic solution blowing nylon-6, are obtained. Here we found a new phase which differs from the known α-, β-, γ-, δ- λ-phases, presenting itself χ-phase. It is characterized by decrease CH2 stretching, shift –NH different type hydrogen bond ten-fold increase in Young's modulus compared to those...

In the present work, a systematic study of release kinetics two embedded model drugs (one completely water soluble and one partially soluble) from hydrophilic hydrophobic nanofiber mats was conducted. Fluorescent dye Rhodamine B used as drug in controlled experiments after it encapsulated solution-blown soy-protein-containing nanofibers well electrospun poly(ethylene terephthalate) (PET)-containing nanofibers. Vitamin B2 (riboflavin), water-soluble drug, also PET-containing mats, its...

Medical implants such as orthopedic, dental, and vascular stents may require subsequent drug therapy regiments to prevent infection or decrease inflammation. Drug release derived directly from the implant surface rather than systemically can reduce unnecessary side effects. TiO2 nanotubes could be considered a more suitable alternative route for development of drug-eluting implants. This is mainly due fact that fabrication these nanostructures does not an additional coating process they will...

Formation of titanium dioxide nanotubes (TNTs) on a surface holds great potential for promoting desirable cellular response. However, prolongation drug release from these nano-reservoirs remains to be challenge. In our previous work TNTs were successfully loaded with drug. this study the effect dimensions is quantified aiming at introduction simple novel technique which overcomes complications previously introduced methods. Different groups different lengths and diameters are fabricated....