Electrospun Nanofibers for Chemical Separation

Najafi, Mesbah; Frey, Margaret W.

doi:10.3390/nano10050982

Cited by 39 publications

(20 citation statements)

References 79 publications

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“…[ 240 ] In another example, chitosan (CS) and graphene oxide (GO) were incorporated onto the surface of poly(vinyl alcohol‐ co ‐ethylene) nanofibers (PVA‐ co ‐PE) and successfully employed in the filtration of E.coli and S. aureus [ 241 ] microorganisms using micro/nanofiber. [ 242 ] In this direction, Tang and collaborators [ 243 ] obtained SiO 2 @ZrO 2 nanofibers after immersion of SiO 2 ‐electrospun nanofibers in ZrOCl 2 solution following by calcination. The nanofibers showed excellent adsorption of negatively charged particles with great potential for separating bacteria and viruses in water.…”

Section: Applicationsmentioning

confidence: 99%

Tailoring the Surface Properties of Micro/Nanofibers Using 0D, 1D, 2D, and 3D Nanostructures: A Review on Post‐Modification Methods

Schneider

Facure

Chagas

et al. 2021

Adv Materials Inter

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Micro‐ and nanofibers produced by electrospinning and solution blow spinning (SBS) are highly suitable platforms for diverse applications due to their advantageous properties, including the high surface area to volume ratio, high porosity, and flexibility. To render them additional functionalities, distinct pre‐ or post‐modification processes have been proposed for modifying such micro‐ and nanofibers with 0D, 1D, 2D, and 3D nanostructures. The pre‐modification requires the addition of 0D–3D nanostructures (or their precursors) into the polymeric phase before the spinning process, which can demand laborious solubilization and requires changes in experimental spinning parameters, with impact on morphology, spinnability, and properties. Post‐modification methods, on the other hand, enable the fabrication of composite fibers without the need to optimize the spinning parameters, allowing a simple and efficient surface modification. Herein, recent advances on post‐modification methods of spun fibers, including wet chemistry, grafting, crosslinking, click chemistry, oxidations, hydrolysis and reduction strategies, dip‐coating, layer‐by‐layer, electro/air‐spray, atomic layer deposition, and plasma techniques aiming at the surface functionalization with 0D–3D nanostructures are surveyed. Recent results, trends, and challenges on the application of such surface‐modified fibers for environmental, industrial, and medical applications, including as adsorbent and filtering membranes, catalysts for pollutants degradation, and wearable sensors are examined.

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Section: Applicationsmentioning

confidence: 99%

Tailoring the Surface Properties of Micro/Nanofibers Using 0D, 1D, 2D, and 3D Nanostructures: A Review on Post‐Modification Methods

Schneider

Facure

Chagas

et al. 2021

Adv Materials Inter

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show abstract

“…Most common persistent environmental pollutants are polycyclic aromatic hydrocarbons, flame retardants, surfactants, dioxins, and dioxin-like compounds such as polychlorinated biphenyls and organochlorine pesticides (like DDT), polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans [ 157 , 158 ]. In recent years, progress in electrospun nanofibrous materials have resulted in several efficient adsorbent-based methods for removal of diverse organic pollutants from environmental compartments (soil, water, and air) [ 159 , 160 , 161 ].…”

Section: Environmental Applicationmentioning

confidence: 99%

The Role of Electrospun Nanomaterials in the Future of Energy and Environment

2021

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Electrospinning is one of the most successful and efficient techniques for the fabrication of one-dimensional nanofibrous materials as they have widely been utilized in multiple application fields due to their intrinsic properties like high porosity, large surface area, good connectivity, wettability, and ease of fabrication from various materials. Together with current trends on energy conservation and environment remediation, a number of researchers have focused on the applications of nanofibers and their composites in this field as they have achieved some key results along the way with multiple materials and designs. In this review, recent advances on the application of nanofibers in the areas—including energy conversion, energy storage, and environmental aspects—are summarized with an outlook on their materials and structural designs. Also, this will provide a detailed overview on the future directions of demanding energy and environment fields.

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“…Multi-jet, needle-free spinnerets and roll-to-roll collector systems such as Nanospider™, Inovenso, and Bioinicia mitigate the lab-scale drawbacks of low throughput, and adaptable configurations of the equipment make electrospinning an attractive option for a wide range of applications. Useful overviews of the fundamentals of nanofiber formation via electrospinning and applications of electrospun fibers have been published [ 6 , 7 , 8 , 9 , 10 ]. Cellulose acetate was chosen for this study based on its low cost from a renewable source, spinnability, and ability to readily functionalize with various chemistries.…”

Section: Introductionmentioning

confidence: 99%

Biotin-Conjugated Cellulose Nanofibers Prepared via Copper-Catalyzed Alkyne-Azide Cycloaddition (CuAAC) “Click” Chemistry

Goodge

Frey

2020

Nanomaterials

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As potential high surface area for selective capture in diagnostic or filtration devices, biotin-cellulose nanofiber membranes were fabricated to demonstrate the potential for specific and bio-orthogonal attachment of biomolecules onto nanofiber surfaces. Cellulose acetate was electrospun and substituted with alkyne groups in either a one- or two-step process. The alkyne reaction, confirmed by FTIR and Raman spectroscopy, was dependent on solvent ratio, time, and temperature. The two-step process maximized alkyne substitution in 10/90 volume per volume ratio (v/v) water to isopropanol at 50 °C after 6 h compared to the one-step process in 80/20 (v/v) at 50 °C after 48 h. Azide-biotin conjugate “clicked” with the alkyne-cellulose via copper-catalyzed alkyne-azide cycloaddition (CuAAC). The biotin-cellulose membranes, characterized by FTIR, SEM, Energy Dispersive X-ray spectroscopy (EDX), and XPS, were used in proof-of-concept assays (HABA (4′-hydroxyazobenzene-2-carboxylic acid) colorimetric assay and fluorescently tagged streptavidin assay) where streptavidin selectively bound to the pendant biotin. The click reaction was specific to alkyne-azide coupling and dependent on pH, ratio of ascorbic acid to copper sulfate, and time. Copper (II) reduction to copper (I) was successful without ascorbic acid, increasing the viability of the click conjugation with biomolecules. The surface-available biotin was dependent on storage medium and time: Decreasing with immersion in water and increasing with storage in air.

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Electrospun Nanofibers for Chemical Separation

Cited by 39 publications

References 79 publications

Tailoring the Surface Properties of Micro/Nanofibers Using 0D, 1D, 2D, and 3D Nanostructures: A Review on Post‐Modification Methods

Tailoring the Surface Properties of Micro/Nanofibers Using 0D, 1D, 2D, and 3D Nanostructures: A Review on Post‐Modification Methods

The Role of Electrospun Nanomaterials in the Future of Energy and Environment

Biotin-Conjugated Cellulose Nanofibers Prepared via Copper-Catalyzed Alkyne-Azide Cycloaddition (CuAAC) “Click” Chemistry

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