| Texto completo | |
| Autor(es): |
Brollo, Maria Eugenia F.
[1]
;
Lopez-Ruiz, Roman
[1]
;
Muraca, Diego
[1]
;
Figueroa, Santiago J. A.
[2]
;
Pirota, Kleber R.
[1]
;
Knobel, Marcelo
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP - Brazil
[2] Brazilian Ctr Energy & Mat CNPEM, Brazilian Synchrotron Light Lab LNLS, BR-13083970 Campinas, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SCIENTIFIC REPORTS; v. 4, OCT 30 2014. |
| Citações Web of Science: | 33 |
| Resumo | |
A temperature pause introduced in a simple single-step thermal decomposition of iron, with the presence of silver seeds formed in the same reaction mixture, gives rise to novel compact heterostructures: brick-like Ag@Fe3O4 core-shell nanoparticles. This novel method is relatively easy to implement, and could contribute to overcome the challenge of obtaining a multifunctional heteroparticle in which a noble metal is surrounded by magnetite. Structural analyses of the samples show 4 nm silver nanoparticles wrapped within compact cubic external structures of Fe oxide, with curious rectangular shape. The magnetic properties indicate a near superparamagnetic like behavior with a weak hysteresis at room temperature. The value of the anisotropy involved makes these particles candidates to potential applications in nanomedicine. (AU) | |
| Processo FAPESP: | 11/01235-6 - Estudo de sistemas granulares magnéticos: efeitos de interações dipolares e de superfície em nanopartículas magnéticas e ferrogel |
| Beneficiário: | Diego Muraca |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 13/13275-8 - Efeitos de tamanho finito, síntese e propriedades magnéticas de nanofios modulados |
| Beneficiário: | Román López Ruiz |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |