Electrospun composite cellulose acetate/iron oxide nanoparticles non-woven membranes for magnetic hyperthermia applications

Matos, Ricardo; Chaparro, Catarina I. P.; Silva, Jorge; Valente, M.A.; Borges, João Paulo; Soares, Paula I. P.

doi:10.1016/j.carbpol.2018.06.048

Cited by 47 publications

(24 citation statements)

References 31 publications

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“…Recently, a strong focus of diverse research groups has been related to electrospinning magnetic nanofibers, either as composites [16][17][18] or, after calcination of the composites to remove polymers, as pure metal nanofibers [19][20][21]. Such magnetic nanofiber mats can be used, e.g., as catalysts [22], for magnetic hyperthermia [23], or electromagnetic shielding [24]. In contrast to other methods, such as electrodeposition [25,26], seed-mediated growth [27], magnetic field patterning of magnetic precursor inks printed on a substrate [28], or electrochemical deposition [29], electrospinning has the advantage Materials 2020, 13 of enabling preparation of large-scale nanofiber networks in short times without the necessity to use a cleanroom, highly sophisticated equipment, or highly toxic material, and is thus often used to prepare magnetic nanofibers [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

et al. 2020

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Magnetic nanofibers are of great interest in basic research, as well as for possible applications in spintronics and neuromorphic computing. Here we report on the preparation of magnetic nanofiber mats by electrospinning polyacrylonitrile (PAN)/nanoparticle solutions, creating a network of arbitrarily oriented nanofibers with a high aspect ratio. Since PAN is a typical precursor for carbon, the magnetic nanofiber mats were stabilized and carbonized after electrospinning. The magnetic properties of nanofiber mats containing magnetite or nickel ferrite nanoparticles were found to depend on the nanoparticle diameters and the potential after-treatment, as compared with raw nanofiber mats. Micromagnetic simulations underlined the different properties of both magnetic materials. Atomic force microscopy and scanning electron microscopy images revealed nearly unchanged morphologies after stabilization without mechanical fixation, which is in strong contrast to pure PAN nanofiber mats. While carbonization at 500 °C left the morphology unaltered, as compared with the stabilized samples, stronger connections between adjacent fibers were formed during carbonization at 800 °C, which may be supportive of magnetic data transmission.

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Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

et al. 2020

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“…Other approaches concentrate on electrospinning pure polymer nanofibers and afterwards adsorbing magnetic nanoparticles on the fiber surfaces, e.g., for magnetic hyperthermia applications [18] or electromagnetic shielding [19]. However, in this way, the magnetic nanoparticles cannot be embedded inside the nanofibers which will lead to other magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanofiber Mats for Data Storage and Transfer

et al. 2019

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Electrospun nanofiber mats may serve as new hardware for neuromorphic computing. To enable data storage and transfer in them, they should be magnetic, possibly electrically conductive and able to respond to further external impulses. Here we report on creating magnetic nanofiber mats, consisting of magnetically doped polymer nanofibers for data transfer and polymer beads containing larger amounts of magnetic nanoparticles for storage purposes. Using magnetite and iron nickel oxide nanoparticles, a broad range of doping ratios could be electrospun with a needleless technique, resulting in magnetic nanofiber mats with varying morphologies and different amounts of magnetically doped beads.

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“…While the latter showed a better heating capability, it had also the disadvantage of possible cytotoxic effects, making the nanofiber mat with embedded magnetic nanoparticles a responsible choice. 117 Sarier et al 118 suggested magnetite/fatty acid embedded in electrospun poly(methacrylic acid-ethyl acrylate) nanofibers.…”

Section: Biotechnology and Biomedicinementioning

confidence: 99%

Most recent developments in electrospun magnetic nanofibers: A review

Błachowicz

Ehrmann

2020

Journal of Engineered Fibers and Fabrics

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One-dimensional materials, such as nanowires, nanotubes, or nanofibers, have attracted more and more attention recently due to their unique physical properties. Their large length-to-diameter ratio creates anisotropic material properties which could not be reached in bulk material. Especially one-dimensional magnetic structures are of high interest since the strong shape anisotropy reveals new magnetization reversal modes and possible applications. One possibility to create magnetic nanofibers in a relatively simple way is offered by electrospinning them from polymer solutions or melts with incorporated magnetic nanoparticles. This review gives an overview of most recent methods of electrospinning magnetic nanofibers, measuring their properties as well as possible applications from basic research to single-cell manipulation to microwave absorption.

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Electrospun composite cellulose acetate/iron oxide nanoparticles non-woven membranes for magnetic hyperthermia applications

Cited by 47 publications

References 31 publications

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

Magnetic Properties of Electrospun Magnetic Nanofiber Mats after Stabilization and Carbonization

Magnetic Nanofiber Mats for Data Storage and Transfer

Most recent developments in electrospun magnetic nanofibers: A review

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