Optimized Zn substituted CoFe2O4 nanoparticles for high efficiency magnetic hyperthermia in biomedical applications

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 24, 2025

This study presents a systematic on the structural, magnetic, and hyperthermia properties of Zn-substituted cobalt ferrite (ZnxCo1−xFe2O4, x = 0.0–0.7) nanoparticles synthesized via hydrothermal method. X-ray diffraction patterns confirmed pure spinel structure, with Rietveld refinement revealing cation redistribution lattice distortions. Magnetic measurements showed transition from ferrimagnetic (x ≤ 0.2) to superparamagnetic behavior ≥ 0.5), accompanied by peak in saturation magnetization at 0.2 continuous decrease coercivity. These changes were attributed Zn-induced modulation distribution superexchange interactions. studies demonstrated that Zn0.6Co0.4Fe2O4 exhibited highest specific loss power (SLP) intrinsic (ILP) under alternating magnetic fields (65–125 Oe) frequencies (250–350 kHz). The observed quadratic dependence SLP field amplitude adherence linear response theory, experimental conditions remaining within clinical safety limits. findings highlight as an efficient candidate for applications, demonstrating tunable structural biomedical use.

Язык: Английский

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Optimized Heat Generation and Magnetic Properties in Zinc-Substituted Cobalt Ferrite Nanofluids for Biomedical Hyperthermia

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

The structural, magnetic, and magnetic hyperthermia properties of zinc-doped cobalt ferrite nanoparticles, Zn_xCo_1−xFe₂O₄ (x = 0.0–0.7), prepared by a hydrothermal method are presented in the current study. XRD confirmed pure spinel phase for all compositions. Rietveld refinement has shown systematic changes cation distribution lattice distortions reflected oxygen positional parameter. Magnetic measurements showed transition from ferrimagnetic 0.0 x 0.2) to superparamagnetic behavior ≥ 0.5) strong coercivity decrease with peak saturation magnetization at 0.2. Variations linked between tetrahedral octahedral positions, weakening superexchange interactions. As evidenced constant anisotropy, softening occurred when Zn content increased. experiments depend lot on substitution. Thus, SLP ILP values increased content, reaching maximum 0.6 under various field amplitudes (65–125 Oe) frequencies (250–350 kHz). sample Zn_0.6Co_0.4Fe₂O₄ exhibited best heating efficiency due predominance relaxation losses heat generation processes. This was further quadratic dependence amplitude, indicating adherence linear response theory; frequency conditions were also well within clinical safety limits. Therefore, these results suggest using nanoparticles as an efficient agent applications.

Язык: Английский

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An overview of computational approaches utilized for analyzing water-splitting processes at two-dimensional photoelectrode materials

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 137, С. 342 - 359

Опубликована: Май 13, 2025

Язык: Английский

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Catalytic aquathermolysis of heavy oil by nickel ferrite nanoparticles prepared via solvothermal method

Journal of Analytical and Applied Pyrolysis, Год журнала: 2024, Номер unknown, С. 106929 - 106929

Опубликована: Дек. 1, 2024

Язык: Английский

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