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TY - JOUR
AU - Tadić, Marin
AU - Lazović, Jelena
AU - Panjan, Matjaž
AU - Vučetić Tadić, Biljana
AU - Lalatonne, Yoann
PY - 2025
UR - https://vinar.vin.bg.ac.rs/handle/123456789/14573
AB - Understanding the shape-dependent magnetic properties of hematite (α-Fe2O3) nanoparticles is essential for advancing their biomedical and nanotechnological applications. We synthesized cube-like and rounded hematite nanoparticles using a controlled hydrothermal synthesis method by varying ethanol/water ratios, enabling precise morphological tuning. While the Morin transition temperature (TM) (225–231 K) and coercivity below TM (≈180 Oe) remain largely shape-independent, coercivity above TM exhibits significant shape dependence. Cube-like hematite nanoparticles display ultra-low coercivity (HC = 21 Oe) due to defect-minimized planar surfaces, whereas rounded hematite nanoparticles exhibit higher coercivity (HC = 306 Oe) due to defect-rich curved surfaces and atomic misalignments. MRI relaxivity measurements reveal that rounded hematite nanoparticles enhance transverse relaxivity (5.70 ± 0.17 mM[Fe]-1s−1), while cube-like hematite nanoparticles show higher longitudinal relaxivity (0.0075 mM[Fe]-1s−1), demonstrating morphology-dependent MRI contrast efficiency. With low cytotoxicity and high biocompatibility, the synthesized hematite nanoparticles show promise for biomedical applications, particularly in targeted imaging and magnetic nanodevice development. © 2025 Elsevier B.V.
T2 - Materials Science and Engineering. B: Advanced Functional Solid-State Materials
T1 - Low-coercivity behavior and biomedical potential of cube-like and rounded hematite (α-Fe2O3) nanoparticles: Insights from hydrothermal synthesis
VL - 317
SP - 118204
DO - 10.1016/j.mseb.2025.118204
ER -
@article{
author = "Tadić, Marin and Lazović, Jelena and Panjan, Matjaž and Vučetić Tadić, Biljana and Lalatonne, Yoann",
year = "2025",
abstract = "Understanding the shape-dependent magnetic properties of hematite (α-Fe2O3) nanoparticles is essential for advancing their biomedical and nanotechnological applications. We synthesized cube-like and rounded hematite nanoparticles using a controlled hydrothermal synthesis method by varying ethanol/water ratios, enabling precise morphological tuning. While the Morin transition temperature (TM) (225–231 K) and coercivity below TM (≈180 Oe) remain largely shape-independent, coercivity above TM exhibits significant shape dependence. Cube-like hematite nanoparticles display ultra-low coercivity (HC = 21 Oe) due to defect-minimized planar surfaces, whereas rounded hematite nanoparticles exhibit higher coercivity (HC = 306 Oe) due to defect-rich curved surfaces and atomic misalignments. MRI relaxivity measurements reveal that rounded hematite nanoparticles enhance transverse relaxivity (5.70 ± 0.17 mM[Fe]-1s−1), while cube-like hematite nanoparticles show higher longitudinal relaxivity (0.0075 mM[Fe]-1s−1), demonstrating morphology-dependent MRI contrast efficiency. With low cytotoxicity and high biocompatibility, the synthesized hematite nanoparticles show promise for biomedical applications, particularly in targeted imaging and magnetic nanodevice development. © 2025 Elsevier B.V.",
journal = "Materials Science and Engineering. B: Advanced Functional Solid-State Materials",
title = "Low-coercivity behavior and biomedical potential of cube-like and rounded hematite (α-Fe2O3) nanoparticles: Insights from hydrothermal synthesis",
volume = "317",
pages = "118204",
doi = "10.1016/j.mseb.2025.118204"
}
Tadić, M., Lazović, J., Panjan, M., Vučetić Tadić, B.,& Lalatonne, Y.. (2025). Low-coercivity behavior and biomedical potential of cube-like and rounded hematite (α-Fe2O3) nanoparticles: Insights from hydrothermal synthesis. in Materials Science and Engineering. B: Advanced Functional Solid-State Materials, 317, 118204.
https://doi.org/10.1016/j.mseb.2025.118204
Tadić M, Lazović J, Panjan M, Vučetić Tadić B, Lalatonne Y. Low-coercivity behavior and biomedical potential of cube-like and rounded hematite (α-Fe2O3) nanoparticles: Insights from hydrothermal synthesis. in Materials Science and Engineering. B: Advanced Functional Solid-State Materials. 2025;317:118204.
doi:10.1016/j.mseb.2025.118204 .
Tadić, Marin, Lazović, Jelena, Panjan, Matjaž, Vučetić Tadić, Biljana, Lalatonne, Yoann, "Low-coercivity behavior and biomedical potential of cube-like and rounded hematite (α-Fe2O3) nanoparticles: Insights from hydrothermal synthesis" in Materials Science and Engineering. B: Advanced Functional Solid-State Materials, 317 (2025):118204,
https://doi.org/10.1016/j.mseb.2025.118204 . .
