Electrospun three-layered polymer nanofiber-based porous carbon nanotubes for high-capacity energy storage

Lee, Jun Seop; Jun, Ji Hae; Cho, Sunghun; Kim, Wooyoung; Jang, Jyongsik

doi:10.1039/c6ra24870e

Cited by 16 publications

(7 citation statements)

References 45 publications

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“…Electrospinning is a versatile technique to fabricate fibers with nano-to-microscale diameters using polymers, ceramics, or nanocomposite materials , and to arrange them within fibrous mats. Because of the high specific surface area and the open, porous structure, engineered electrospun fibrous materials are finding applications in tissue engineering, drug delivery, , water purification, , and energy storage. , For many biomedical and environmental applications, several properties of the fiber materials should be simultaneously achieved. Specifically, the fibers should (a) be stable in water at environmental pH values, (b) demonstrate robust mechanical performance, comparable to or exceeding those of biological fibers, and (c) be capable of controllably retaining/releasing small molecules for programmed material functionality.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity

Gaikwad

Hlushko

Karimineghlani

et al. 2020

ACS Appl. Mater. Interfaces

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We report on mechanically strong, water-insoluble hydrogen-bonded nanofiber mats composed of a hydrophilic polymer and a natural polyphenol that exhibit prolonged antioxidant activity. The high performance of fibrous mats resulted from the formation of a network of hydrogen bonds between a low-molecular-weight polyphenol (tannic acid, TA) and a water-soluble polymer (polyvinylpyrrolidone, PVP) and could be precisely controlled by the TA-to-PVP ratio. Dramatic enhancement (5- to 10-fold) in tensile strength, toughness, and Young’s moduli of the PVP/TA fiber mats (as compared to those of pristine PVP fibers) was achieved at the maximum density of hydrogen bonds, which occurred at ∼0.2–0.4 molar fractions of TA. The formation of hydrogen bonds was confirmed by an increase in the glass-transition temperature of the polymer after binding with TA. When exposed to water, the fibers exhibited composition- and pH-dependent stabilities, with the TA-enriched fibers fully preserving their integrity in acidic and neutral media. Importantly, the fiber mats exhibited strong antioxidant activity with dual (burst and prolonged) activity profiles, which could be controlled via fiber composition, a feature useful for controlling radical-scavenging rates in environmental and biological applications.

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Section: Introductionmentioning

confidence: 99%

Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity

Gaikwad

Hlushko

Karimineghlani

et al. 2020

ACS Appl. Mater. Interfaces

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“…Figure shows the overall process used to fabricate the shape‐controlled Pd_PPy/PAN NFs. First, a PAN solution was electrospun onto the collector at a constant voltage, resulting in ≈180 nm PAN NFs ( Figure a,b) . The electrospun PAN NFs were soaked in a solution of 10 wt% iron (III) chloride (FeCl 3 ), resulting in the adsorption of iron (Fe) cations onto the NF surface via charge–charge interactions between Fe 3+ ions and the partial negative charge of nitrogen atoms in the PAN.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Shape‐Controlled Palladium Nanoparticle‐Decorated Electrospun Polypyrrole/Polyacrylonitrile Nanofibers for Hydrogen Peroxide Coalescing Detection

Kim

Shin

Jun

et al. 2017

Adv Materials Inter

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Shape‐controlled palladium nanoparticle‐decorated electrospun polypyrrole/polyacrylonitrile nanofibers (Pd_PPy/PAN NFs) are fabricated by electrospinning, vapor deposition polymerization (VDP), and electrodeposition. The electrospun PAN NFs are used as the framework for a composite nanomaterial. To make the material electrically conductive, the framework is coated with PPy by VDP. As‐prepared PPy/PAN NFs are used as the working electrode during electrodeposition of Pd. During Pd introduction, the presence of sulfuric acid in the electrolyte influences the shape of the Pd nanoparticles. Sulfate ions prevent the growth of the Pd, resulting in nanoparticles with sharp features. The fabricated Pd_PPy/PAN NFs are then incorporated as the active element in an electrochemical hydrogen peroxide (H2O2) biosensor. Tailoring the morphology of the Pd nanoparticles enables a minimum detectable limit of 1 × 10−9m H2O2, which is sufficiently low for monitoring diseases related to H2O2 concentration, such as Parkinson's disease and Alzheimer's disease. The low detection limit is achieved by coalescing detection of Pd and PPy.

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“…Carbon nanomaterials are always the hotspot of scientific research due to their distinct physicochemical capabilities such as excellent chemical stability, , small size, good flexibility, and ductility. − In the biomedical field, carbon nanomaterials show great potential application, including targeted drug delivery, , cancer therapy, , biosensors, and biological imaging. , In consideration of their remarkable potential for in vivo applications, a comprehensive toxicological evaluation of nanomaterials is required before applying it to clinical practice.…”

Section: Introductionmentioning

confidence: 99%

Reproductive Toxicity Evaluation of Graphene-Based Tumor Cell Nucleus-Targeting Fluorescent Nanoprobes on Reproduction and Offspring Health

et al. 2023

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A new graphene-based fluorescent nanoprobe for tumor cell nucleus (GTTNs) was synthesized in our laboratory that penetrates the cell membrane and particularly targets cancer cell nucleus and displays tremendous potential for clinical applications. Although acute and subacute toxicity studies have been conducted on GTTNs, a primary result could be drawn that GTTNs appear to have almost no acute and subacute toxicity. However, as an important part of safety evaluation, the influences on reproductive and offspring developmental toxicity are still absent. In this study, male mice were injected intravenously with GTTNs, and the survival status, histopathology of the testes and epididymides, proliferation and apoptosis of testicular tissue, and sperm motility of mice were measured. To evaluate the short- and long-term fertility in male mice, different male mice resided with untreated female mice on days 1 and 30 after the end of the last treatment, and the offspring health parameters were assessed by measuring pup numbers, body weight, and organ indexes of the pups. The results indicated that GTTNs-exposed male mice retained good fertility, healthy structure of testes and epididymides, and production of healthy sperm. Meanwhile, there were no significant differences between the offspring and the control group. In consideration of GTTNs with broad prospects for biomedical applications, our results contribute a basis for further understanding of its biosafety.

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Electrospun three-layered polymer nanofiber-based porous carbon nanotubes for high-capacity energy storage

Cited by 16 publications

References 45 publications

Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity

Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity

Fabrication of Shape‐Controlled Palladium Nanoparticle‐Decorated Electrospun Polypyrrole/Polyacrylonitrile Nanofibers for Hydrogen Peroxide Coalescing Detection

Reproductive Toxicity Evaluation of Graphene-Based Tumor Cell Nucleus-Targeting Fluorescent Nanoprobes on Reproduction and Offspring Health

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