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Title: A novel hybrid nanoparticle based on Fe3O4/TMAOH/poly(L-co-D,L lactic acid-co-trimethylene carbonate) prepared through the solvent displacement method
Title of periodic: Hyperfine Interactions
Authors: Machado, Vagner de Oliveira
Andrade, Ângela Leão
Cavalcante, Luis Carlos Duarte
Fabris, José Domingos
Domingues, Rosana Zacarias
Ardisson, Jose Domingos
Fernandez-Outon, Luis E
Pizarro, Carmen
Elias, Carlos Nelson
Affiliation: Instituto Militar de Engenharia, IME, Rio de Janeiro, Brasil
Universidade Federal de Ouro Preto, Ouro Preto, MG, Brasil
Universidade Federal do Piaui, Teresina, PI, Brasil
Universidade Federal de Minas Gerais, UFMG, Belo Horizonte MG, Brasil
Universidade Federal de Uberlância, Uberlândia, MG, Brasil
Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasil
Universidade de Santiago, Santiago, Chile
Issue Date: 2019
Keywords: Magnetite;Hybrid;Nanoparticles;Biomaterial
Abstract: TMAOH-dispersed nanoparticles of magnetite were first prepared through the reduction–precipitation of ferric chloride with Na2SO3 and NH4OH. The TMAOH-dispersed (Fe3O4) magnetic nanoparticles were then surface-coated with poly(L-co-D,L lactic acid-co-trimethylene carbonate) (PLDLA-co-TMC) to obtain the corresponding hybrid system (Fe3O4/TMAOH/PLDLA-co-TMC). Samples of so prepared material were analyzed by Fourier-transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), magnetization measurements up to 2.5 T, and Mössbauer spectroscopy. Results indicate that this magnetic iron oxide soon after the synthesis is structurally close enough to a typically pure stoichiometric magnetite. FTIR data support clears evidences confirming the efficiency of the solvent displacement method to assure coating the TMAOH-dispersed (Fe3O4) magnetic nanoparticles with the terpolymer while preserves the main chemical structural characteristic of the nanosized magnetite.
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