Nickel–Zinc Ferrite Nanoparticles for Hyperthermia: Preserving Superparamagnetism Across a Broad Range of Particle Sizes DOI
Minh Dang Nguyen, Supun B. Attanayake, Pailinrut Chinwangso

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Nickel-zinc ferrite (NZF) compounds, renowned for their mixed spinel structures, hold significant promise diverse applications in high-frequency devices and biomedicine. This study utilizes solvothermal synthesis to produce NZF nanoparticles (NPs) with tunable diameters ranging from 40 300 nm. These NPs exhibit polycrystalline crystallite sizes tailored be approximately 8 nm, a pivotal factor preserving superparamagnetic (SPM) properties across broad size spectrum. A combination of scanning electron microscopy (SEM), transmission (TEM), X-ray diffraction (XRD), Raman spectroscopy, energy-dispersive spectroscopy (EDS), inductively coupled plasma mass spectrometry (ICP-MS), photoelectron (XPS) confirms the structures compositions synthesized samples. Magnetometry measurements revealed consistent saturation magnetization (MS) values SPM features at room temperature all samples, despite variations particle size. transition ferrimagnetic (FiM) or blocked state 150 K. Consequently, comparable specific absorption rate (SAR) are achieved which can attributed uniformity primary crystals (crystallite ∼8 nm) within nanoparticles. Our underscores significance controlling nanoparticles, enabling attainment desirable hyperthermia responses wide It also delineates an effective methodology producing suitable variety applications, including optoelectronic devices, photocatalysis, environmental remediation, sensor systems, advanced biomedical technologies.

Language: Английский

Nickel–Zinc Ferrite Nanoparticles for Hyperthermia: Preserving Superparamagnetism Across a Broad Range of Particle Sizes DOI
Minh Dang Nguyen, Supun B. Attanayake, Pailinrut Chinwangso

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Nickel-zinc ferrite (NZF) compounds, renowned for their mixed spinel structures, hold significant promise diverse applications in high-frequency devices and biomedicine. This study utilizes solvothermal synthesis to produce NZF nanoparticles (NPs) with tunable diameters ranging from 40 300 nm. These NPs exhibit polycrystalline crystallite sizes tailored be approximately 8 nm, a pivotal factor preserving superparamagnetic (SPM) properties across broad size spectrum. A combination of scanning electron microscopy (SEM), transmission (TEM), X-ray diffraction (XRD), Raman spectroscopy, energy-dispersive spectroscopy (EDS), inductively coupled plasma mass spectrometry (ICP-MS), photoelectron (XPS) confirms the structures compositions synthesized samples. Magnetometry measurements revealed consistent saturation magnetization (MS) values SPM features at room temperature all samples, despite variations particle size. transition ferrimagnetic (FiM) or blocked state 150 K. Consequently, comparable specific absorption rate (SAR) are achieved which can attributed uniformity primary crystals (crystallite ∼8 nm) within nanoparticles. Our underscores significance controlling nanoparticles, enabling attainment desirable hyperthermia responses wide It also delineates an effective methodology producing suitable variety applications, including optoelectronic devices, photocatalysis, environmental remediation, sensor systems, advanced biomedical technologies.

Language: Английский

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