Magnetic heating of triethylene glycol (TREG)-coated zinc-doped nickel ferrite nanoparticles

Ahmad, Ashfaq; Bae, Hongsub; Rhee, Ilsu; Hong, Sungwook

doi:10.1016/j.jmmm.2017.09.057

Cited by 15 publications

(8 citation statements)

References 41 publications

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“…The essential reection peaks were from the characteristic crystal planes of cubic single phase spinel structure (111), (220), (311), (222), (400), (422), (511), (440), (620) and (533). [14][15][16] It can be observed from Fig. 1, the existence of extra peaks for x ¼ 0.1 sample which refers to orthorhombic ferrite symmetry Pbnm as a second phase (NdFeO 3 ) symbolized by (*).…”

Section: Structural Studymentioning

confidence: 99%

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

et al. 2021

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Section: Structural Studymentioning

confidence: 99%

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

et al. 2021

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“…Upon exposure of the NPs to an AMF, heat is dissipated into the medium through a variety of different pathways depending on their magnetic profile and size, either by relaxation loss (Néel or Brown spin relaxations for a superparamagnetic regime size <30 nm) or by hysteresis loss (for a ferromagnetic regime size >30 nm) . In our case, hysteresis loss does not dominate because of the superparamagnetic behavior of our nanoferrites with negligible hysteresis (Figure ). Therefore, it appears that magnetic relaxation loss is the greatest contributor to the heat generation.…”

Section: Resultsmentioning

confidence: 78%

Improvements in the Organic-Phase Hydrothermal Synthesis of Monodisperse M_xFe_3–xO₄ (M = Fe, Mg, Zn) Spinel Nanoferrites for Magnetic Fluid Hyperthermia Application

Etemadi

Plieger

2020

ACS Omega

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In the quest for optimal heat dissipaters for magnetic fluid hyperthermia applications, monodisperse M x Fe 3– x O 4 (M = Fe, Mg, Zn) spinel nanoferrites were successfully synthesized through a modified organic-phase hydrothermal route. The chemical composition effect on the size, crystallinity, saturation magnetization, magnetic anisotropy, and heating potential of prepared nanoferrites were assessed using transmission electron microscopy (TEM), dynamic light scattering, X-ray diffraction (XRD), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDS), atomic absorption spectroscopy (AAS), X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometer (VSM) techniques. TEM revealed that a particle diameter between 6 and 14 nm could be controlled by varying the surfactant ratio and doping ions. EDS, AAS, XRD, and XPS confirmed the inclusion of Zn and Mg ions in the Fe 3 O 4 structure. Magnetization studies via VSM revealed both the superparamagnetic nature of the nanoferrites and the dependence on substitution of the doped ions to the final magnetization. The broader zero-field cooling curve of Zn-doped Fe 3 O 4 was related to their large size distribution. Finally, a maximum rising temperature ( T max ) of 66 °C was achieved for an aqueous ferrofluid of nondoped Fe 3 O 4 nanoparticles after magnetic field activation for 12 min.

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“…[6][7][8] Magnetic hyperthermia treatment of cancer is a therapeutic concept based on killing cancer by using magnetic nanoparticles as heat generators. Gilchrist et al first reported the application of the maghemite nanoparticle to magnetic hyperthermia.…”

Section: Introductionmentioning

confidence: 99%

“…Relaxational losses are of two types: Neel relaxation in superparamagnetic nanoparticles due to rotation of their magnetic moment in the presence of external alternating magnetic field, and Brownian relaxational losses due to friction of rotating particles inside the medium. 8,10 a ilrhee@knu.ac.kr…”

Section: Introductionmentioning

confidence: 99%

Silica-coated gadolinium-doped lanthanum strontium manganite nanoparticles for self-controlled hyperthermia applications

2018

Self Cite

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Gadolinium-doped lanthanum strontium manganite (LSM) nanoparticles were synthesized by using a citrate-gel technique. The particles were then annealed at 850 oC to remove defects for a good crystallinity, followed by coating with silica for possible biomedical application to magnetic hyperthermia. The chemical composition was determined to be La0.54Sr0.27Gd0.19MnO3 using an inductively coupled plasma mass spectrometer. The nanoparticles were characterized by X-ray diffraction, transmission electron microscope, and Fourier transform infrared spectrometer to check the perovskite crystalline structure and to observe the particles size and coating status of silica on the surface of the particles. The Curie temperature of the particles was found to be about 280 K. The saturation temperature of the aqueous solution of the particles remained at the hyperthermia target temperature of 42 oC with increasing concentration of particles from 6 to 60 mg/mL in the dispersion. This saturation temperature for a highly concentrated 120-mg/mL-sample increased further, but less than the dangerous temperature of 47 oC for normal tissues. The saturation temperature of the powder sample reached only up to 53 oC. These results showed that the gadolinium-doped LSM nanoparticles can be used for the self-controlled hyperthermia in which the temperature does not exceed the target temperature of hyperthermia even at the tissue site of highly accumulated nanoparticles.

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Magnetic heating of triethylene glycol (TREG)-coated zinc-doped nickel ferrite nanoparticles

Cited by 15 publications

References 41 publications

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Improvements in the Organic-Phase Hydrothermal Synthesis of Monodisperse M_xFe_3–xO₄ (M = Fe, Mg, Zn) Spinel Nanoferrites for Magnetic Fluid Hyperthermia Application

Silica-coated gadolinium-doped lanthanum strontium manganite nanoparticles for self-controlled hyperthermia applications

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Magnetic heating of triethylene glycol (TREG)-coated zinc-doped nickel ferrite nanoparticles

Cited by 15 publications

References 41 publications

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Improvements in the Organic-Phase Hydrothermal Synthesis of Monodisperse MxFe3–xO4 (M = Fe, Mg, Zn) Spinel Nanoferrites for Magnetic Fluid Hyperthermia Application

Silica-coated gadolinium-doped lanthanum strontium manganite nanoparticles for self-controlled hyperthermia applications

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Product

Resources

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Improvements in the Organic-Phase Hydrothermal Synthesis of Monodisperse M_xFe_3–xO₄ (M = Fe, Mg, Zn) Spinel Nanoferrites for Magnetic Fluid Hyperthermia Application