Behavior of ferrofluids under the influence of external magnetic field
Abstract
Light transmitting measurements of white light and laser beam propagating through CoFe2O4
nanoparticles, coated with starch, under the influence of an external magnetic field in the range
of 30-400 mT, were presented. Among well-established synthetic routes, cobalt ferrite magnetic
nanoparticles were prepared by ultrasonic- assisted hydrothermal method. Ultrasonic irradiation
provides unique reaction conditions via acoustic cavitation, significantly reducing the temperature and reaction time. The extensive biomedical application of ferrites requires controllable particle size and enhanced dispersibility in a physiological medium. Surface coating of ferrites with a layer of hydrophilic molecules or polymers improves biocompatibility and the stability of the colloid. Starch, a long-chain polymer of D-glucose, has become one of the most abundant naturally occurring surfactant, because of its biocompatibility, biodegradability, and nontoxicity. Under the influence of external magnetic ...field, the change of transmittance occurred and a precipitation of all studied samples was obtained. Cobalt ferrite nanoparticles prepared by ultrasonic-assisted hydrothermal method showed increased performance under the influence of external magnetic field in comparison to e.g. CoFe2O4 synthesized by thermal decomposition of complexes with acetylacetone ligands. To the best of our knowledge, the field-induced precipitation effect of ferrites in ferrofluid was not analysed so far and its significance and influence on the further laser treatment of patients previously exposed to ferrite-based MRI agents is not well recognized. This should be of great importance, since neglecting of the precipitation effect would lead to inappropriate response when patients are treated by diagnostic and therapy methods.
Source:
Proceedings Book, 3rd International Caparica Conference on ultrasonic-based applications: from analysis to synthesis, 11th – 14th June, 2018, Caparica, Portugal, 2018, 181-181Publisher:
- Portugal: PROTEOMASS Scientific Society
Funding / projects:
- Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-MESTD-Basic Research (BR or ON)-172035)
Collections
Institution/Community
IHTMTY - CONF AU - Šuljagić, Marija AU - Nikolić, Aleksandar S. AU - Anđelković, Ljubica PY - 2018 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6295 AB - Light transmitting measurements of white light and laser beam propagating through CoFe2O4 nanoparticles, coated with starch, under the influence of an external magnetic field in the range of 30-400 mT, were presented. Among well-established synthetic routes, cobalt ferrite magnetic nanoparticles were prepared by ultrasonic- assisted hydrothermal method. Ultrasonic irradiation provides unique reaction conditions via acoustic cavitation, significantly reducing the temperature and reaction time. The extensive biomedical application of ferrites requires controllable particle size and enhanced dispersibility in a physiological medium. Surface coating of ferrites with a layer of hydrophilic molecules or polymers improves biocompatibility and the stability of the colloid. Starch, a long-chain polymer of D-glucose, has become one of the most abundant naturally occurring surfactant, because of its biocompatibility, biodegradability, and nontoxicity. Under the influence of external magnetic field, the change of transmittance occurred and a precipitation of all studied samples was obtained. Cobalt ferrite nanoparticles prepared by ultrasonic-assisted hydrothermal method showed increased performance under the influence of external magnetic field in comparison to e.g. CoFe2O4 synthesized by thermal decomposition of complexes with acetylacetone ligands. To the best of our knowledge, the field-induced precipitation effect of ferrites in ferrofluid was not analysed so far and its significance and influence on the further laser treatment of patients previously exposed to ferrite-based MRI agents is not well recognized. This should be of great importance, since neglecting of the precipitation effect would lead to inappropriate response when patients are treated by diagnostic and therapy methods. PB - Portugal: PROTEOMASS Scientific Society C3 - Proceedings Book, 3rd International Caparica Conference on ultrasonic-based applications: from analysis to synthesis, 11th – 14th June, 2018, Caparica, Portugal T1 - Behavior of ferrofluids under the influence of external magnetic field SP - 181 EP - 181 UR - https://hdl.handle.net/21.15107/rcub_cer_6295 ER -
@conference{ author = "Šuljagić, Marija and Nikolić, Aleksandar S. and Anđelković, Ljubica", year = "2018", abstract = "Light transmitting measurements of white light and laser beam propagating through CoFe2O4 nanoparticles, coated with starch, under the influence of an external magnetic field in the range of 30-400 mT, were presented. Among well-established synthetic routes, cobalt ferrite magnetic nanoparticles were prepared by ultrasonic- assisted hydrothermal method. Ultrasonic irradiation provides unique reaction conditions via acoustic cavitation, significantly reducing the temperature and reaction time. The extensive biomedical application of ferrites requires controllable particle size and enhanced dispersibility in a physiological medium. Surface coating of ferrites with a layer of hydrophilic molecules or polymers improves biocompatibility and the stability of the colloid. Starch, a long-chain polymer of D-glucose, has become one of the most abundant naturally occurring surfactant, because of its biocompatibility, biodegradability, and nontoxicity. Under the influence of external magnetic field, the change of transmittance occurred and a precipitation of all studied samples was obtained. Cobalt ferrite nanoparticles prepared by ultrasonic-assisted hydrothermal method showed increased performance under the influence of external magnetic field in comparison to e.g. CoFe2O4 synthesized by thermal decomposition of complexes with acetylacetone ligands. To the best of our knowledge, the field-induced precipitation effect of ferrites in ferrofluid was not analysed so far and its significance and influence on the further laser treatment of patients previously exposed to ferrite-based MRI agents is not well recognized. This should be of great importance, since neglecting of the precipitation effect would lead to inappropriate response when patients are treated by diagnostic and therapy methods.", publisher = "Portugal: PROTEOMASS Scientific Society", journal = "Proceedings Book, 3rd International Caparica Conference on ultrasonic-based applications: from analysis to synthesis, 11th – 14th June, 2018, Caparica, Portugal", title = "Behavior of ferrofluids under the influence of external magnetic field", pages = "181-181", url = "https://hdl.handle.net/21.15107/rcub_cer_6295" }
Šuljagić, M., Nikolić, A. S.,& Anđelković, L.. (2018). Behavior of ferrofluids under the influence of external magnetic field. in Proceedings Book, 3rd International Caparica Conference on ultrasonic-based applications: from analysis to synthesis, 11th – 14th June, 2018, Caparica, Portugal Portugal: PROTEOMASS Scientific Society., 181-181. https://hdl.handle.net/21.15107/rcub_cer_6295
Šuljagić M, Nikolić AS, Anđelković L. Behavior of ferrofluids under the influence of external magnetic field. in Proceedings Book, 3rd International Caparica Conference on ultrasonic-based applications: from analysis to synthesis, 11th – 14th June, 2018, Caparica, Portugal. 2018;:181-181. https://hdl.handle.net/21.15107/rcub_cer_6295 .
Šuljagić, Marija, Nikolić, Aleksandar S., Anđelković, Ljubica, "Behavior of ferrofluids under the influence of external magnetic field" in Proceedings Book, 3rd International Caparica Conference on ultrasonic-based applications: from analysis to synthesis, 11th – 14th June, 2018, Caparica, Portugal (2018):181-181, https://hdl.handle.net/21.15107/rcub_cer_6295 .