Study of the surface properties and particle-particle interactions in oleic acid-coated Fe3O4 nanoparticles

Urian, Y.A.; Atoche-Medrano, J.J.; Quispe, Luis T.; Félix, Lizbet León; Coaquira, J. A. H.

doi:10.1016/j.jmmm.2020.167686

Cited by 40 publications

(16 citation statements)

References 65 publications

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“…Once again, the Fe-O stretching and Fe-O-H bending bands due to the γ-Fe 2 O 3 and α-FeOOH are located at the 410–900 cm −1 range. The OA functionalization is verified by the presence of carboxyl groups as a redshifted C=O stretching band at ~1661 cm −1 (overlapped with the O-H bending vibration band from physiosorbed water molecules on nano γ-Fe 2 O 3 NPs), and the COO − symmetric and asymmetric stretching bands at 1413 and 1565 cm −1 for theM5 sample, and 1402 and 1568 cm −1 for the M2 sample, respectively [ 33 , 34 , 35 , 36 , 37 ]. The redshift of the C=O band corresponds to the chemisorption of the carboxyl groups onto the ionic Fe surface [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…The OA functionalization is verified by the presence of carboxyl groups as a redshifted C=O stretching band at ~1661 cm −1 (overlapped with the O-H bending vibration band from physiosorbed water molecules on nano γ-Fe 2 O 3 NPs), and the COO − symmetric and asymmetric stretching bands at 1413 and 1565 cm −1 for theM5 sample, and 1402 and 1568 cm −1 for the M2 sample, respectively [ 33 , 34 , 35 , 36 , 37 ]. The redshift of the C=O band corresponds to the chemisorption of the carboxyl groups onto the ionic Fe surface [ 33 ]. It can be noticed that the COO − group symmetric stretching bands are overlayed with that of the C-H bending vibration band [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

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Progress toward Room-Temperature Synthesis and Functionalization of Iron-Oxide Nanoparticles

Flores-Cano

Checca-Huaman

Castro-Merino

et al. 2022

IJMS

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Novel magnetic nanohybrids composed of nanomaghemite covered by organic molecules were successfully synthesized at room temperature with different functionalization agents (sodium polystyrene sulfonate, oxalic acid, and cetyltrimethylammonium bromide) in low and high concentrations. Structural, vibrational, morphological, electron energy-loss spectroscopy, magnetic, and Mössbauer characterizations unraveled the presence of mainly cubic inverse spinel maghemite (γ-Fe2O3), whilst X-ray diffraction and 57Fe Mössbauer spectroscopy showed that most samples contain a minor amount of goethite phase (α-FeOOH). Raman analysis at different laser power revealed a threshold value of 0.83 mW for all samples, for which the γ-Fe2O3 to α-Fe2O3 phase transition was observed. Imaging microscopy revealed controlled-size morphologies of nanoparticles, with sizes in the range from 8 to 12 nm. Organic functionalization of the magnetic nanoparticles was demonstrated by vibrational and thermogravimetric measurements. For some samples, Raman, magnetic, and Mössbauer measurements suggested an even more complex core-shell-like configuration, with a thin shell containing magnetite (Fe3O4) covering the γ-Fe2O3 surface, thus causing an increase in the saturation magnetization of approximately 11% against nanomaghemite. Field cooling hysteresis curves at 5 K did not evidence an exchange bias effect, confirming that the goethite phase is not directly interacting magnetically with the functionalized maghemite nanoparticles. These magnetic nanohybrids may be suitable for applications in effluent remediation and biomedicine.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Progress toward Room-Temperature Synthesis and Functionalization of Iron-Oxide Nanoparticles

Flores-Cano

Checca-Huaman

Castro-Merino

et al. 2022

IJMS

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“…The FTIR showed two peaks of OA in the 2862 cm ‒1 and 2928 cm ‒1 regions, which are similar to the previous literature, which indicated symmetric and asymmetric CH 2 stretch. [ 9 12 ] The peaks were also found in SPIONs-OA at 3138 cm ‒1 and 2935 cm ‒1 , which indicated that OA molecules were absorbed into the SPION surface. The previous study reported that the C = O double bond strain was indicated by a peak at 1709 cm ‒1 .…”

Section: Discussionmentioning

confidence: 98%

“…The addition of oleic acid (OA) as a stabilizer and surface effect in the synthesis of SPIONs is important in technological applications because it can control particle size and prevent aggregation between particles. [ 8 9 10 ] Furthermore, OA is not only used as a stabilizer but also to prevent oxidation so that it can protect the layer of SPIONs. [ 11 ] The previous research showed that optimization of stirring rate can affect the stabilization of SPIONs-OA.…”

Section: Introductionmentioning

confidence: 99%

Synthesis conditions and characterization of superparamagnetic iron oxide nanoparticles with oleic acid stabilizer

Wulandari

Sutriyo

Rahmasari

2022

J Adv Pharm Technol Res

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Superparamagnetic iron oxide nanoparticles (SPIONs), part of magnetic nanoparticles, have been widely used in biomedical applications. Biocompatibility and magnetic properties make the SPIONs developed further by a lot of researchers. However, in the synthesis process, SPIONs can run into agglomeration. Oleic acid (OA) is one of the stabilizers to prevent agglomeration. This research aims to optimize the synthesis conditions and characterization of SPIONs with OA as a stabilizer. The synthesis of Superparamagnetic Iron Oxide Nanoparticles-Oleic Acid (SPIONs-OA) was performed using the coprecipitation method and was prepared with the addition of 0.75, 1.5, and 3% v / v OA and stirring rate of 750, 1500, 3000, 6000, 9000, and 12,000 rpm. The characterization of hydrodynamic size and polydispersity index was evaluated by dynamic light scattering. Meanwhile, the crystal structure was observed by X-ray diffraction. Then, Fourier transform infrared spectroscopy (FTIR) was used to analyze structures. The results showed that the hydrodynamic size was dependent on OA concentrations and stirring rate. The addition of 1.5% v / v OA and stirring conditions of 750 rpm resulted in the smallest hydrodynamic size and polydispersity index (83.71 ± 0.70 nm and 0.215 ± 0.01 nm, respectively). Based on the crystal structure analysis, the crystal shape was magnetic cubic, and the size of Fe 3 O 4 crystallite changed from 11.38 to 5.61 nm. The FTIR indicated a strong chemical bond between the hydroxyl group of SPIONs and carboxylic acid of OA. In conclusion, the SPIONs-OA was successfully prepared with 1.5% v / v OA concentrations and a stirring rate of 750 rpm.

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“…Also, it confirmed the size of the synthesized nanoparticles. A suitable statistical histogram plot was used to determine the mean particle size [37,38].…”

Section: Transition Electron Microscope (Tem) Analysismentioning

confidence: 99%

Hematobiochemical, Oxidative Stress, and Histopathological Mediated Toxicity Induced by Nickel Ferrite (NiFe2O4) Nanoparticles in Rabbits

Khan

Buzdar

Hussain

et al. 2022

Oxidative Medicine and Cellular Longevity

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From the past few decades, attention towards the biological evaluation of nanoparticles (NPs) has increased due to the persistent and extensive application of NPs in various fields, including biomedical science, modern industry, magnetic resonance imaging, and the construction of sensors. Therefore, in the current study, magnetic nickel ferrite (NiFe2O4) nanoparticles (NFNPs) were synthesized and evaluated for their possible adverse effects in rabbits. The crystallinity of the synthesized NFNPs was confirmed using X-ray diffraction (XRD) technique. The saturation magnetization (46.7 emug-1) was measured using vibrating sample magnetometer (VSM) and 0.35-tesla magnetron by magnetic resonance imaging (MRI). The adverse effects of NFNPs on blood biochemistry and histoarchitecture of the liver, kidneys, spleen, brain, and heart of the rabbits were determined. A total of sixteen adult rabbits, healthy and free from any apparent infection, were blindly placed in two groups. The rabbits in group A served as control, while the rabbits in group B received a single dose (via ear vein) of NFNPs for ten days. The blood and visceral tissues were collected from each rabbit at days 5 and 10 of posttreatment. The results on blood and serum biochemistry profile indicated significant variation in hematological and serum biomarkers in NFNP-treated rabbits. The results showed an increased quantity of oxidative stress and depletion of antioxidant enzymes in treated rabbits. Various serum biochemical tests exhibited significantly higher concentrations of different liver function tests, kidney function tests, and cardiac biomarkers. Histopathologically, the liver showed congestion, edema, atrophy, and degeneration of hepatocytes. The kidneys exhibited hemorrhages, atrophy of renal tubule, degeneration, and necrosis of renal tubules, whereas coagulative necrosis, neutrophilic infiltration, and severe myocarditis were seen in different sections of the heart. The brain of the treated rabbits revealed necrosis of neurons, neuron atrophy, and microgliosis. In conclusion, the current study results indicated that the highest concentration of NPs induced adverse effects on multiple tissues of the rabbits.

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Study of the surface properties and particle-particle interactions in oleic acid-coated Fe3O4 nanoparticles

Cited by 40 publications

References 65 publications

Progress toward Room-Temperature Synthesis and Functionalization of Iron-Oxide Nanoparticles

Progress toward Room-Temperature Synthesis and Functionalization of Iron-Oxide Nanoparticles

Synthesis conditions and characterization of superparamagnetic iron oxide nanoparticles with oleic acid stabilizer

Hematobiochemical, Oxidative Stress, and Histopathological Mediated Toxicity Induced by Nickel Ferrite (NiFe2O4) Nanoparticles in Rabbits

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