Structural Characterization, Magnetic Properties, and Heating Power of Nickel Ferrite Nanoparticles

Márquez, Gerson; Sagredo, V.; Guillén-Guillén, Rosmary

doi:10.1109/tmag.2019.2939118

Cited by 10 publications

(4 citation statements)

References 37 publications

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“…The ILP obtained for the 4z sample here is much greater compared to various reported values in the literature as shown in Fig. 7 34,35,36,37,38,39 .Typical ILP values suitable for heating are in the range from 3 to 4 nH⋅m 2 /kg, and therefore, our results indicate that the synthesized nanoparticles here have high efficiency as heating agents. The high values of SAR (347 W/g) and ILP (4.6 nH⋅m 2 /kg) in the case of 4z can be explained as a direct consequence of well crystallized nanoparticle with high saturation magnetization and easy Neel relaxation to dissipate reasonable amount of energy under the applied field and frequency as shown in Fig.…”

Section: Induction Heating Studymentioning

confidence: 38%

Tunable heat generation in nickel-substituted zinc ferrite nanoparticles for magnetic hyperthermia

Kahmei

Seal

2021

Nanoscale Adv.

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Section: Induction Heating Studymentioning

confidence: 38%

Tunable heat generation in nickel-substituted zinc ferrite nanoparticles for magnetic hyperthermia

Kahmei

Seal

2021

Nanoscale Adv.

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“…The MS and HC values of cobalt ferrite are among the highest values reported in the literature for nanoparticles of this oxide synthesized by methods such as sol-gel or aerosol [24], [29]. The MS values obtained at 5 and 320 K, for Co0.5Ni0.5Fe2O4 nanoparticles, are higher than those reported in the literature for Ni ferrite, both in its nanoparticulate and bulk form, which vary between 54 and 56 emu/g (at T ≤ 5 K), and between 47 and 50 emu/g (at T ⁓ 300 K) [27], [30]. In addition, the saturation magnetization and coercive field values of Co0.5Ni0.5Fe2O4 ferrite nanoparticles, obtained at 320 K, are close to those reported in other investigations (63.35 ≤ MS ≤ 67.30 emu/g, 124 ≤ HC ≤ 565 Oe) where they have studied the magnetic properties, at room temperature, of Co-Ni mixed ferrite nanoparticles synthesized by other methods such as sol-gel [31], [32].…”

Section: Resultsmentioning

confidence: 76%

Effect of the Substitution of Co by Ni on the Crystal Structure and Magnetic Properties of Cobalt Ferrite Nanoparticles

Márquez¹,

Sagredo²

2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

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Ni1-xCoxFe2O4 (x = 1.0, 0.8, 0.6, and 0.5 ) nanoparticles were synthesized using the coprecipitation method and subsequent thermal treatment at 800 °C. The structural characterization of the nanoparticles was carried out using X-ray Diffraction, finding that all the compounds presented a single crystalline phase corresponding to the cubic spinel structure. As the concentration of Ni in the compounds increases, a decrease in the lattice parameter was obtained because of the fact that Ni 2+ cations are smaller than Co 2+ . The size, morphology and dispersion of the nanoparticles were analyzed by Transmission Electron Microscopy, finding that the nanocompounds are formed by aggregates of nanoparticles with irregular shapes and mean particle sizes between 34 and 42 nm. The magnetic properties of CoFe2O4 and Co0.5Ni0.5Fe2O4 nanoparticles were studied from magnetization measurements as a function of temperature, in ZFC and FC modes, and magnetization measurements as a function of the applied magnetic field. It was obtained that the nanoparticles are in the blockedmagnetic regime in the temperature range from 5 to 320 K. At 5 K, the compounds have large coercive fields of 10683 and 7518 Oe, for CoFe2O4 and Co0.5Ni0.5Fe2O4, respectively. It was found that the values of saturation magnetization, remanent magnetization, and coercive field decrease when replacing Co 2+ by Ni 2+ in Co ferrite, because the magnetic moments of divalent nickel cations are smaller than those of Co 2+ cations.

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“…Nickel ferrite has a Curie temperature in the range of 860-870 K. The nickel ferrite nanoparticles are not biocompatible and because of their high magnetic moments are still used in biomedical applications, but by applying biocompatible inorganic or organic coating on the particles. 55 For example, Umut et al synthesized nickel ferrite nanoparticles through co-precipitation for hyperthermia and magnetic resonance imaging (MRI) contrast enhancement. The nanoparticles were coated with oleic acid and tetramethyl ammonium hydroxide (TMAH), to reduce the toxic effects of the nanoparticles and better dispersion in water.…”

Section: Nanoparticles Used In Magnetic Hyperthermiamentioning

confidence: 99%

Magnetic hyperthermia in cancer therapy, mechanisms, and recent advances: A review

Molaei

2024

J Biomater Appl

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Hyperthermia therapy refers to the elevating of a region in the body for therapeutic purposes. Different techniques have been applied for hyperthermia therapy including laser, microwave, radiofrequency, ultrasonic, and magnetic nanoparticles and the latter have received great attention in recent years. Magnetic hyperthermia in cancer therapy aims to increase the temperature of the body tissue by locally delivering heat from the magnetic nanoparticles to cancer cells with the aid of an external alternating magnetic field to kill the cancerous cells or prevent their further growth. This review introduces magnetic hyperthermia with magnetic nanoparticles. It includes the mechanism of the operation and magnetism behind the magnetic hyperthermia phenomenon. Different synthesis methods and surface modification to enhance the biocompatibility, water solubility, and stability of the nanoparticles in physiological environments have been discussed. Recent research on versatile types of magnetic nanoparticles with their ability to increase the local temperature has been addressed.

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Structural Characterization, Magnetic Properties, and Heating Power of Nickel Ferrite Nanoparticles

Cited by 10 publications

References 37 publications

Tunable heat generation in nickel-substituted zinc ferrite nanoparticles for magnetic hyperthermia

Tunable heat generation in nickel-substituted zinc ferrite nanoparticles for magnetic hyperthermia

Effect of the Substitution of Co by Ni on the Crystal Structure and Magnetic Properties of Cobalt Ferrite Nanoparticles

Magnetic hyperthermia in cancer therapy, mechanisms, and recent advances: A review

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