SPION clusters with porous silica shell: synthesis, core-shell structure, magnetic properties, biocompatibility and MRI application

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Enhanced inductivity, redox potential, and magneto-dielectric properties of SrFe12O19 nano-hexaferrite due to Cu and Gd co-substitution

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 314, P. 118041 - 118041

Published: Jan. 29, 2025

Language: Английский

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Structure, Electrical, and Magnetic Properties of Hexaferrite/Molybdenum Disulfide Composite

Journal of Physics Conference Series, Journal Year: 2025, Volume and Issue: 2945(1), P. 012014 - 012014

Published: Jan. 1, 2025

Abstract This research discusses synthesizing and characterizing hexaferrite/Molybdenum disul9ide (Ba 0.6 Sr 0.4 Fe 11.75 Al 0.25 O 19 /MoS 2 ) composite materials. The Ba hexaferrite sample was synthesized using a solid-state reaction method sintered at high temperatures. Hexaferrite/Molybdenum with weight ratio of 1:9 mixed milling. Using an X-ray diffractometer (XRD), the characterization results produced samples had hexagonal structure MoS monoclinic structure. surface morphology from scanning electron microscope (SEM) shows heterogeneous shape. LCR-meter is used to characterize dielectric, loss tangent, impedance. magnitude impedance decrease increasing frequency. A vibrating-sample magnetometer (VSM) magnetization ambient temperature. magnitudes magnetic saturation, remanent, coercivity 9ields are 37.42 emu/g, 19.35 3.82 kOe, respectively.

Language: Английский

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Silver doped strontium hexaferrites: Structural, morphological, magnetic and dielectric properties

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114191 - 114191

Published: Feb. 1, 2025

Language: Английский

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Low-coercivity behavior and biomedical potential of cube-like and rounded hematite (α-Fe2O3) nanoparticles: Insights from hydrothermal synthesis

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 317, P. 118204 - 118204

Published: March 11, 2025

Language: Английский

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

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 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.

Language: Английский

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

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 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.

Language: Английский

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Facile synthesis of magnetically retrievable Sr0.5La0.5Fe12O19/MXene composite for photocatalytic activity and energy storage applications

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106603 - 106603

Published: April 1, 2025

Language: Английский

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Particle Size and Loading Ratio Dependent Microwave Absorption Performance of FeSiAl Alloy and the Mechanism Study

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112230 - 112230

Published: March 1, 2025

Language: Английский

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Effects of Ce Doping on the Structure, Morphology, and Magnetic Properties of M-Type Strontium Ferrite

Journal of Superconductivity and Novel Magnetism, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

Language: Английский

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