Synthesis and characterization of Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles from iron ore

Husain, Sadang; Irfansyah, Muhammad; Haryanti, Ninis Hadi; Suryajaya, Stefanus Kevin; Arjo, Sugianto; Maddu, Akhiruddin

doi:10.1088/1742-6596/1242/1/012021

Cited by 21 publications

(12 citation statements)

References 23 publications

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“…The interval between 400 and 700 cm −1 presents the characteristic bands of Fe 2 O 3 nanoparticles (for Fe 3 O 4 , a single characteristic peak was observed in this interval) [ 61 , 62 , 63 ]. The absorptions between 400–600 cm −1 from spectrum of Fe 2 O 3 Nps which have a different size, were attributed to the stretching vibration of Fe–O symmetric stretching [ 62 , 63 ], a small peak at 1029 cm −1 was assigned to Fe–O in bending vibration [ 64 , 65 , 66 ] and the band at ca. 1400 cm −1 which is probably due to carbonate on iron particles [ 67 ] or adsorbed water on the surface of iron oxide nanoparticles [ 68 , 69 ].…”

Section: Resultsmentioning

confidence: 99%

Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy

Drobotă¹,

Vlad²,

Grădinaru³

et al. 2022

Materials

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The majority of recent studies have focused on obtaining MRI materials for internal use. However, this study focuses on a straightforward method for preparing gelatin-based materials with iron oxide nanoparticles (G–Fe2O3 and G–Fe3O4) for external use. The newly obtained materials must be precisely tuned to match the requirements and usage situation because they will be in close touch with human/animal skin. The biocompatible structures formed by gelatin, tannic acid, and iron oxide nanoparticles were investigated by using FTIR spectroscopy, SEM-EDAX analysis, and contact angle methods. The physico-chemical properties were obtained by using mechanical investigations, dynamic vapor sorption analysis, and bulk magnetic determination. The size and shape of iron oxide nanoparticles dictates the magnetic behavior of the gelatin-based samples. The magnetization curves revealed a typical S-shaped superparamagnetic behavior which is evidence of improved MRI image accuracy. In addition, the MTT assay was used to demonstrate the non-toxicity of the samples, and the antibacterial test confirmed satisfactory findings for all G-based materials.

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Section: Resultsmentioning

confidence: 99%

Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy

Drobotă¹,

Vlad²,

Grădinaru³

et al. 2022

Materials

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“…The first ferrofluid component detected was functional groups of metal oxides (M-O) originating from Fe—O and Co—O. In this work, the presence of M-O was detected at 459 cm −1 for the stretching mode at the octahedral position ( Husain et al, 2019 ) and 704 cm −1 at the tetrahedral position. Based on the previous work, the stretching mode at the tetrahedral position was in the range of 560 to 580 cm −1 ( Lei et al, 2017 ).…”

Section: Resultsmentioning

confidence: 57%

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Taufiq

Saputro

Yuliantika

et al. 2020

Journal of King Saud University - Science

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The preparation of Co-doped magnetite ferrofluids from natural sand was developed using a double-layer technique. The Co-doped magnetite nanoparticles formed a spinel phase with lattice parameters in the range of 8.355–8.422 Å and tended to agglomerate with the particle sizes of 7–12 nm. The presence of the first and second layers from oleic acid and DMSO was detected by the infrared spectrum as well as the olive oil used as a carrier liquid. The saturation magnetization of the superparamagnetic samples decreased from 24.4 to 4.8 emu/g with decreasing Co 2+ composition. The particle size and electrostatic forces between the magnetic particles and the microbes played an essential role in inhibiting microbial growth. Interestingly, the increasing Co 2+ composition enhanced the superior performance of the ferrofluids against E. coli, S. aureus, B. subtilis, and C. albicans . With additional extensive investigation, we believe that the prepared Co-doped magnetite double-layered ferrofluids from natural sand with superior antimicrobial performance can be new significant antimicrobial agents.

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“…The FTIR spectra of MNPs are listed in Figure a. The formation of magnetite particles is confirmed by the appearance of peaks near 576 and 688 cm –1 , which are due to the formation of Fe–O bands (stretching and bending vibrations). − Moreover, the existence of peaks near 1290–1750 cm –1 with noise peaks indicates a basic medium condition for the preparation of Fe 3 O 4 NPs. The broad peak of Fe 3 O 4 particles near 3250 cm –1 is due to water molecules or O–H vibrating stretching, which is probably due to Fe(OH) 3 impurities in Fe 3 O 4 NPs .…”

Section: Resultsmentioning

confidence: 96%

Impact of Choline Hydroxide-Supported Magnetic Nanoparticles on Peroxidase Activity and Conformational Stability of Cytochrome c

Chahar,

Jha,

Arumugam

et al. 2024

ACS Appl. Bio Mater.

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Nanotechnology has advanced significantly; however, little is known about the potential implications on human health-related issues, particularly blood carrying enzymes. Ionic liquids are also well-recognized for maintaining the structure and activity of enzymes. In this regard, we delineate a facile synthetic approach of preparation of Fe 3 O 4 nanoparticles (NPs) as well as choline hydroxide [CH][OH] ionic liquid (IL)-supported Fe 3 O 4 NPs (Fe 3 O 4 −CHOH). This approach of combining magnetic nanoparticles (MNPs) with IL results in distinctive properties, which may offer enormous utility in the field of biomedical research due to the effortless separation of MNPs by an external magnetic field. Detailed characterization of MNPs including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), and scanning electron microscopy (SEM) was carried out. The biomolecular interactions of Fe 3 O 4 and Fe 3 O 4 −CHOH NPs with cytochrome c (Cyt c) were studied in detail using various spectroscopic and microscopic techniques. From spectroscopic studies, it can be concluded that the secondary structure of Cyt c is more stable in the presence of Fe 3 O 4 −CHOH NPs than Fe 3 O 4 NPs. The binding constant of Cyt c in the presence of MNPs was also calculated using the Benesi−Hildebrand equation. Furthermore, dynamic light scattering (DLS), ζ-potential, and microscopic studies were performed to study the interaction of Cyt c with MNPs. These studies provided evidence favoring the formation of bionanoconjugates of Cyt c with MNPs. Moreover, the enzymatic activity of Cyt c increases in the presence of both MNPs. The peroxidase activity of Cyt c in MNPs explicitly elucidates that the enzyme is preserved for a long time in the presence of Fe 3 O 4 −CHOH NPs. Later on, TEM and field emission scanning electron microscopy (FESEM) were also performed to gather more information regarding the morphology of Cyt c in the presence of MNPs.

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Synthesis and characterization of Fe₃O₄ magnetic nanoparticles from iron ore

Cited by 21 publications

References 23 publications

Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy

Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Impact of Choline Hydroxide-Supported Magnetic Nanoparticles on Peroxidase Activity and Conformational Stability of Cytochrome c

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Synthesis and characterization of Fe3O4 magnetic nanoparticles from iron ore

Cited by 21 publications

References 23 publications

Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy

Composite Materials Based on Gelatin and Iron Oxide Nanoparticles for MRI Accuracy

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Impact of Choline Hydroxide-Supported Magnetic Nanoparticles on Peroxidase Activity and Conformational Stability of Cytochrome c

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Synthesis and characterization of Fe₃O₄ magnetic nanoparticles from iron ore