Preparation and Investigations of Ni_{0.2}Zn_{0.8}Fe_2O_4 Ferrite Nanofiber Membranes by Needleless Electrospinning Method

Strečková, M.; Múdra, Erika; Šebek, Martin; Sopčák, Tibor; Dusza, Ján; Kováč, J.

doi:10.12693/aphyspola.131.729

Cited by 8 publications

(6 citation statements)

References 7 publications

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“…The endothermic spectra at ~130 °C is related to the evaporation of physically absorbed water on the scaffold surface [ 36 ]. The exothermic peaks at 197 and 244 °C are related to the self-combustion process of the burning hair band with the evolution of volatile products [ 37 ]. Chemically absorbed water requires more energy to be released from the structure.…”

Section: Resultsmentioning

confidence: 99%

New Approach for Preparing In Vitro Bioactive Scaffold Consisted of Ag-Doped Hydroxyapatite + Polyvinyltrimethoxysilane

et al. 2021

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Recently, researchers have focused on the biocompatibility and mechanical properties of highly porous structures of biomaterials products. Porous composites are a new category of bioengineering that possess excellent functional and structural properties. In this study, the physical and mechanical properties of prepared doped silver (Ag)-hydroxyapatite (HA) by the mechanochemical and spark plasma sintering (SPS) methods were investigated. The influence of dopant on phase formation, structural properties, mechanical properties and morphological characteristics was investigated. Furthermore, in this case, as a new approach to produce a porous scaffold with an average size of >100 µm, the hair band was used as a mold. According to the Monshi–Scherrer method, the crystal size of scaffold was calculated 38 ± 2 nm and this value was in the good agreement with average value from transmission electron microscopy (TEM) analysis. In addition, the stress–strain compression test of scaffold was considered, and the maximum value of compressive strength was recorded ~15.71 MPa. Taking into account the XRD, TEM, Fourier-transform infrared (FTIR), scanning electron microscope (SEM) and energy dispersive X-Ray analysis (EDAX) analysis, the prepared scaffold was bioactive and the effects of doped Ag-HA and the use of polyvinyltrimethoxysilane (PVTMS) as an additive were desirable. The results showed that the effect of thermal treatment on composed of Ag and HA were impressive while no change in transformation was observed at 850 °C. In addition, PVTMS plays an important role as an additive for preventing the decomposition and creating open-microporous in the scaffold that these porosities can be helpful for increasing bioactivity.

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Section: Resultsmentioning

confidence: 99%

New Approach for Preparing In Vitro Bioactive Scaffold Consisted of Ag-Doped Hydroxyapatite + Polyvinyltrimethoxysilane

et al. 2021

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“…It is generally considered that the high thermal conductivity of the metal ions between the polymer chains promotes thermal decomposition. At 420 • C, the mass reduction decreases and then begins to decrease again at 570 • C, which is the point where the NiZn ferrite fiber begins to crystallize into the spinel structure [38]. The reaction ends at 685 • C with a final mass loss of 88 wt%.…”

Section: Resultsmentioning

confidence: 99%

“…The reaction ends at 685 • C with a final mass loss of 88 wt%. Regarding these experimental results, the heat treatment temperature of the nanofibers used in the analysis was determined to be 750 • C. which is the point where the NiZn ferrite fiber begins to crystallize into the spinel structure [38]. The reaction ends at 685 °C with a final mass loss of 88 wt%.…”

Section: Resultsmentioning

confidence: 99%

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Magnetic Properties of NiZn Ferrite Nanofibers Prepared by Electrospinning

Kim

Song

et al. 2019

Applied Sciences

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When the size of a material is decreased to the nanoscale, the effects of forces that are not influential on a macroscopic scale become increasingly important and the electronic structure is improved. The material then exhibits significantly different physical and chemical properties than in the bulk state. The smaller the size of the material, the more exposure it receives to the nano effects, and the physical properties can be changed via size control. In this study, Ni0.5Zn0.5Fe2O4 ferrite nanofibers were prepared by electrospinning, and the sizes of the prepared samples were controlled to ensure different average diameters by controlling the polymer concentration of the precursor solution. Field emission scanning electron microscope images showed that the samples had average diameters of 224 to 265 nm. The single crystal phase of Ni0.5Zn0.5Fe2O4 and the different crystallite sizes of 13 to 20 nm were confirmed by X-ray diffraction analysis. The magnetization behavior of the samples was measured using a vibrating sample magnetometer and the result confirmed that the samples had different magnetic properties, according to the diameter and crystallite size of the nanofibers. This study suggests that control of magnetic properties and excellent electrical conductivity in a one-dimensional nanostructure can be positively applied to improve the performance of a filler for the electromagnetic-interference shielding film.

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“…MNFs with fine performance can also be prepared from spinel‐type ferrite. Streckova et al . fabricated the pure single‐phase spinel Ni 0.2 Zn 0.8 Fe 2 O 4 NF membranes via needleless electrospinning and conventional thermal treatment of the precursor fibers at 800 °C for 4 h in air.…”

Section: Classification Of Magnetic Nanofibersmentioning

confidence: 99%

Magnetic Nanofibers: Unique Properties, Fabrication Techniques, and Emerging Applications

Chen

Cheng

et al. 2018

ChemistrySelect

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Magnetic nanofibers (MNFs) are integrated with a variety of properties, such as large surface area, high porosity, small size effect and apparent magnetism. This enables MNFs to possess excellent properties of both nanofibers (NFs) and magnetic materials, which greatly widens the application of the original magnetic materials. A brief review of the properties of MNFs, fabrication techniques, and their emerging applications which include biomedical application, sensing and electronic devices, wastewater treatment and microwave absorption is presented. Finally, the development trend and prospect of MNFs in future are summarized and discussed.

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Preparation and Investigations of Ni_{0.2}Zn_{0.8}Fe_2O_4 Ferrite Nanofiber Membranes by Needleless Electrospinning Method

Cited by 8 publications

References 7 publications

New Approach for Preparing In Vitro Bioactive Scaffold Consisted of Ag-Doped Hydroxyapatite + Polyvinyltrimethoxysilane

New Approach for Preparing In Vitro Bioactive Scaffold Consisted of Ag-Doped Hydroxyapatite + Polyvinyltrimethoxysilane

Magnetic Properties of NiZn Ferrite Nanofibers Prepared by Electrospinning

Magnetic Nanofibers: Unique Properties, Fabrication Techniques, and Emerging Applications

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