Zn- and (Mn, Zn)-substituted versus unsubstituted magnetite nanoparticles: structural, magnetic and hyperthermic properties
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2020
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In this work, we studied structural and magnetic properties of 18 nm sized Zn-substituted magnetite, 28 nm sized unsubstituted and 17 nm sized (Mn, Zn)-substituted iron oxide nanoparticles, synthesized by thermal decomposition method. Their features were examined by analyzing the x-ray diffraction data, Fe-57 Mossbauer spectra and magnetization measurements by SQUID interferometer. The microstructure was inspected comparing the different size and strain broadening models incorporated into Fullprof software. In terms of crystallinity and size dispersion, applied synthesis protocol shows superiority over decomposition of iron oleate and the co-precipitation synthesis route. The saturation magnetization at T = 5 K was found to be within the M-S = 91.2-98.6 A m(2 )kg(-1) range, while at 300 K M-S of pure and Zn-substituted Fe3O4 nanoparticles is 83.6 and 86.2 A m(2 )kg(-1), respectively. Effective magnetic anisotropy constant K-eff, estimated under slow measurements by SQUID, is below 20 k...J m(-3) in all three samples. Some preliminary measurements of the magnetic hyperthermia performance, expressed via specific absorption rate value showed that the best heating performances were displayed by 18 nm sized oleic acid-coated Zn0.13Fe2.87O4 cubo-octahedrons with SAR approximately equal to 425 W/g(Fe) at H-0 = 20 kA m(-1) and f = 228 kHz.
Keywords:
magnetite-based nanoparticles / Mossbauer spectroscopy / magnetic hyperthermia / microstructureSource:
Nanotechnology, 2020, 31, 22, 225707-Funding / projects:
- COST Action [TD1402]
- Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
- Superconductivity, Magnetism, and Fluctuation Phenomena (RS-MESTD-Basic Research (BR or ON)-171027)
- Spanish Ministerio de Economia y Competitividad (MINECO) [MAT2016-78201-P]
- Aragon Regional Government (DGA), through the Research Groups grants - FEDER Operational Program Aragon 2014-2020 'Building Europe from Aragon' [E-26, E28-17R]
DOI: 10.1088/1361-6528/ab76e7
ISSN: 0957-4484
PubMed: 32066121
WoS: 000521498100001
Scopus: 2-s2.0-85082097614
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VinčaTY - JOUR AU - Jović Orsini, Nataša AU - Milić, Mirjana M. AU - Torres, Teobaldo E. PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8890 AB - In this work, we studied structural and magnetic properties of 18 nm sized Zn-substituted magnetite, 28 nm sized unsubstituted and 17 nm sized (Mn, Zn)-substituted iron oxide nanoparticles, synthesized by thermal decomposition method. Their features were examined by analyzing the x-ray diffraction data, Fe-57 Mossbauer spectra and magnetization measurements by SQUID interferometer. The microstructure was inspected comparing the different size and strain broadening models incorporated into Fullprof software. In terms of crystallinity and size dispersion, applied synthesis protocol shows superiority over decomposition of iron oleate and the co-precipitation synthesis route. The saturation magnetization at T = 5 K was found to be within the M-S = 91.2-98.6 A m(2 )kg(-1) range, while at 300 K M-S of pure and Zn-substituted Fe3O4 nanoparticles is 83.6 and 86.2 A m(2 )kg(-1), respectively. Effective magnetic anisotropy constant K-eff, estimated under slow measurements by SQUID, is below 20 kJ m(-3) in all three samples. Some preliminary measurements of the magnetic hyperthermia performance, expressed via specific absorption rate value showed that the best heating performances were displayed by 18 nm sized oleic acid-coated Zn0.13Fe2.87O4 cubo-octahedrons with SAR approximately equal to 425 W/g(Fe) at H-0 = 20 kA m(-1) and f = 228 kHz. T2 - Nanotechnology T1 - Zn- and (Mn, Zn)-substituted versus unsubstituted magnetite nanoparticles: structural, magnetic and hyperthermic properties VL - 31 IS - 22 SP - 225707 DO - 10.1088/1361-6528/ab76e7 ER -
@article{ author = "Jović Orsini, Nataša and Milić, Mirjana M. and Torres, Teobaldo E.", year = "2020", abstract = "In this work, we studied structural and magnetic properties of 18 nm sized Zn-substituted magnetite, 28 nm sized unsubstituted and 17 nm sized (Mn, Zn)-substituted iron oxide nanoparticles, synthesized by thermal decomposition method. Their features were examined by analyzing the x-ray diffraction data, Fe-57 Mossbauer spectra and magnetization measurements by SQUID interferometer. The microstructure was inspected comparing the different size and strain broadening models incorporated into Fullprof software. In terms of crystallinity and size dispersion, applied synthesis protocol shows superiority over decomposition of iron oleate and the co-precipitation synthesis route. The saturation magnetization at T = 5 K was found to be within the M-S = 91.2-98.6 A m(2 )kg(-1) range, while at 300 K M-S of pure and Zn-substituted Fe3O4 nanoparticles is 83.6 and 86.2 A m(2 )kg(-1), respectively. Effective magnetic anisotropy constant K-eff, estimated under slow measurements by SQUID, is below 20 kJ m(-3) in all three samples. Some preliminary measurements of the magnetic hyperthermia performance, expressed via specific absorption rate value showed that the best heating performances were displayed by 18 nm sized oleic acid-coated Zn0.13Fe2.87O4 cubo-octahedrons with SAR approximately equal to 425 W/g(Fe) at H-0 = 20 kA m(-1) and f = 228 kHz.", journal = "Nanotechnology", title = "Zn- and (Mn, Zn)-substituted versus unsubstituted magnetite nanoparticles: structural, magnetic and hyperthermic properties", volume = "31", number = "22", pages = "225707", doi = "10.1088/1361-6528/ab76e7" }
Jović Orsini, N., Milić, M. M.,& Torres, T. E.. (2020). Zn- and (Mn, Zn)-substituted versus unsubstituted magnetite nanoparticles: structural, magnetic and hyperthermic properties. in Nanotechnology, 31(22), 225707. https://doi.org/10.1088/1361-6528/ab76e7
Jović Orsini N, Milić MM, Torres TE. Zn- and (Mn, Zn)-substituted versus unsubstituted magnetite nanoparticles: structural, magnetic and hyperthermic properties. in Nanotechnology. 2020;31(22):225707. doi:10.1088/1361-6528/ab76e7 .
Jović Orsini, Nataša, Milić, Mirjana M., Torres, Teobaldo E., "Zn- and (Mn, Zn)-substituted versus unsubstituted magnetite nanoparticles: structural, magnetic and hyperthermic properties" in Nanotechnology, 31, no. 22 (2020):225707, https://doi.org/10.1088/1361-6528/ab76e7 . .