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Type: Artigo de periódico
Title: Compact Ag@fe3o4 Core-shell Nanoparticles By Means Of Single-step Thermal Decomposition Reaction
Author: Brollo M.E.F.
Lopez-Ruiz R.
Muraca D.
Figueroa S.J.A.
Pirota K.R.
Knobel M.
Abstract: 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.
Editor: Nature Publishing Group
Citation: Scientific Reports. Nature Publishing Group, v. 4, n. , p. - , 2014.
Rights: aberto
Identifier DOI: 10.1038/srep06839
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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