Magnetic and power absorption measurements on iron oxide nanoparticles synthesized by thermal decomposition of Fe(acac)(3)
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2018
Authors
Jović Orsini, NatašaBabić-Stojić, Branka S.
Spasojević, Vojislav
Calatayud, Maria Pilar
Cvjetićanin, Nikola
Goya, Gerardo F.
Article (Published version)
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Iron oxide magnetic nanoparticles with diameters d, 7 nm LT = d LT = 12 nm, were synthesized by thermal decomposition of Fe(acac)(3). Different experimental conditions, keeping constant concetration of Fe ions in solvent, showed that the heating rates is the most important parameter determining the final particle size. Use of two different solvents, 1-eicosene and 1-octadecene, yielded similar nanoparticle sizes (7.1 nm LT = d LT = 7.5 nm), but different magnetic anisotropies. All samples were superparamagnetic at room temperature. Spin disordering was inferred in samples coated with trioctylphosphine oxide (TOPO) co-ligand in addition to oleic acid and oleyamine. The heating ability of similar to 12 nm-sized nanoparticles dispersed in hexane under alternating magnetic fields (3.98 kA/m LT = H-0 LT = 23.87 kA/m; 229.3 kHz LT = f LT = 828 kHz) has been studied, finding a nearly quadratic dependence upon H-0, as expected from the linear response theory. (C) 2017 Elsevier B.V. All rights ...reserved.
Keywords:
Thermal decomposition method / Magnetic hyperthermia / Specific absorption rate / Neel relaxationsSource:
Journal of Magnetism and Magnetic Materials, 2018, 449, 286-296Funding / projects:
- Magnetic and radionuclide labeled nanostructured materials for medical applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45015)
- MESTD, DGA (Gobierno de Aragon) [E26], Spanish Ministerio de Economia y Competitividad (MINECO) [MAT2013-42551]
DOI: 10.1016/j.jmmm.2017.10.053
ISSN: 0304-8853; 1873-4766
WoS: 000415976800041
Scopus: 2-s2.0-85032021449
Institution/Community
VinčaTY - JOUR AU - Jović Orsini, Nataša AU - Babić-Stojić, Branka S. AU - Spasojević, Vojislav AU - Calatayud, Maria Pilar AU - Cvjetićanin, Nikola AU - Goya, Gerardo F. PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1835 AB - Iron oxide magnetic nanoparticles with diameters d, 7 nm LT = d LT = 12 nm, were synthesized by thermal decomposition of Fe(acac)(3). Different experimental conditions, keeping constant concetration of Fe ions in solvent, showed that the heating rates is the most important parameter determining the final particle size. Use of two different solvents, 1-eicosene and 1-octadecene, yielded similar nanoparticle sizes (7.1 nm LT = d LT = 7.5 nm), but different magnetic anisotropies. All samples were superparamagnetic at room temperature. Spin disordering was inferred in samples coated with trioctylphosphine oxide (TOPO) co-ligand in addition to oleic acid and oleyamine. The heating ability of similar to 12 nm-sized nanoparticles dispersed in hexane under alternating magnetic fields (3.98 kA/m LT = H-0 LT = 23.87 kA/m; 229.3 kHz LT = f LT = 828 kHz) has been studied, finding a nearly quadratic dependence upon H-0, as expected from the linear response theory. (C) 2017 Elsevier B.V. All rights reserved. T2 - Journal of Magnetism and Magnetic Materials T1 - Magnetic and power absorption measurements on iron oxide nanoparticles synthesized by thermal decomposition of Fe(acac)(3) VL - 449 SP - 286 EP - 296 DO - 10.1016/j.jmmm.2017.10.053 ER -
@article{ author = "Jović Orsini, Nataša and Babić-Stojić, Branka S. and Spasojević, Vojislav and Calatayud, Maria Pilar and Cvjetićanin, Nikola and Goya, Gerardo F.", year = "2018", abstract = "Iron oxide magnetic nanoparticles with diameters d, 7 nm LT = d LT = 12 nm, were synthesized by thermal decomposition of Fe(acac)(3). Different experimental conditions, keeping constant concetration of Fe ions in solvent, showed that the heating rates is the most important parameter determining the final particle size. Use of two different solvents, 1-eicosene and 1-octadecene, yielded similar nanoparticle sizes (7.1 nm LT = d LT = 7.5 nm), but different magnetic anisotropies. All samples were superparamagnetic at room temperature. Spin disordering was inferred in samples coated with trioctylphosphine oxide (TOPO) co-ligand in addition to oleic acid and oleyamine. The heating ability of similar to 12 nm-sized nanoparticles dispersed in hexane under alternating magnetic fields (3.98 kA/m LT = H-0 LT = 23.87 kA/m; 229.3 kHz LT = f LT = 828 kHz) has been studied, finding a nearly quadratic dependence upon H-0, as expected from the linear response theory. (C) 2017 Elsevier B.V. All rights reserved.", journal = "Journal of Magnetism and Magnetic Materials", title = "Magnetic and power absorption measurements on iron oxide nanoparticles synthesized by thermal decomposition of Fe(acac)(3)", volume = "449", pages = "286-296", doi = "10.1016/j.jmmm.2017.10.053" }
Jović Orsini, N., Babić-Stojić, B. S., Spasojević, V., Calatayud, M. P., Cvjetićanin, N.,& Goya, G. F.. (2018). Magnetic and power absorption measurements on iron oxide nanoparticles synthesized by thermal decomposition of Fe(acac)(3). in Journal of Magnetism and Magnetic Materials, 449, 286-296. https://doi.org/10.1016/j.jmmm.2017.10.053
Jović Orsini N, Babić-Stojić BS, Spasojević V, Calatayud MP, Cvjetićanin N, Goya GF. Magnetic and power absorption measurements on iron oxide nanoparticles synthesized by thermal decomposition of Fe(acac)(3). in Journal of Magnetism and Magnetic Materials. 2018;449:286-296. doi:10.1016/j.jmmm.2017.10.053 .
Jović Orsini, Nataša, Babić-Stojić, Branka S., Spasojević, Vojislav, Calatayud, Maria Pilar, Cvjetićanin, Nikola, Goya, Gerardo F., "Magnetic and power absorption measurements on iron oxide nanoparticles synthesized by thermal decomposition of Fe(acac)(3)" in Journal of Magnetism and Magnetic Materials, 449 (2018):286-296, https://doi.org/10.1016/j.jmmm.2017.10.053 . .