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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Palmitic acid-coated magnetite nanocubes with high-quality crystallinity and bulk-like magnetic features

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Autor(es):
Orozco-Henao, J. M. [1] ; Muraca, D. [2] ; Sanchez, F. H. [1] ; Mendoza Zelis, P. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Nacl La Plata UNLP, Inst Fis La Plata IFLP CONICET, Dept Fis, Fac Ciencias Exactas, CC 67, RA-1900 La Plata - Argentina
[2] Univ Estadual Campinas UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF PHYSICS D-APPLIED PHYSICS; v. 53, n. 38 SEP 16 2020.
Citações Web of Science: 0
Resumo

We have demonstrated the synthesis of high-quality monocrystalline magnetite nanocubes through the introduction of palmitic acid as surfactant in a thermal decomposition synthesis of an organicFeprecursor. Unlike the standard thermal decomposition synthesis route, we report the avoid of the reducing agent and a modification in the synthesis heating ramp. Structural and magnetic properties were investigated showing well defined cubic shaped nanoparticles with a similar to 40 nm edge and magnetic features close to bulk magnetite. We associate the bulk-like magnetic performance and properties to the highly crystalline structure of the nanocubes. In addition, we introduce a facile way to make a ligand exchange of nanocubes initial surfactant to citric acid in order to obtain biocompatible hydrophilic nanocubes. The potential application of the obtained sample in magnetic hyperthermia therapy is shown through calorimetric heating measurements on liquid dispersions of the nanocubes. We compute the Specific Absorption Rate to quantify the heating efficiency of the nanocubes. (AU)

Processo FAPESP: 17/10581-1 - Fenômenos emergentes em sistemas de dimensões reduzidas
Beneficiário:Pascoal Jose Giglio Pagliuso
Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais