English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/181611
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

One-pot electrochemical synthesis of polydopamine coated magnetite nanoparticles

AuthorsMazarío, Eva; Sánchez-Marcos, Jorge; Menéndez, Nieves; Herrasti, Pilar; García-Hernández, M. ; Muñoz-Bonilla, Alexandra CSIC ORCID
KeywordsThis work was financially supported by the Spanish MINECO (Project MAT2012-37109-C02-02).
Issue Date22-Sep-2014
PublisherRoyal Society of Chemistry (UK)
CitationRSC Advances 4(89): 48353-48361 (2014)
AbstractHerein a facile and versatile one step synthesis of magnetite nanoparticles coated with polydopamine is described. Magnetite nanoparticles are synthesized electrochemically by electrooxidation of iron in an aqueous medium in the presence of dopamine. The oxidative conditions and alkaline pH involved in the synthesis favor the self-polymerization of dopamine that adheres at the surface of the magnetic nanoparticles in a simultaneous process. It is shown that the size of the magnetite nanoparticles as well as the polydopamine coating can be controlled by varying the synthetic approach that is, adding dopamine at the beginning of the electrosynthesis, in the middle or at the end of the process. The particle size of the core varies between a few nanometers and 25 nm while the shell can reach thicknesses of up to ∼5 nm. The obtained hybrid nanoparticles were characterized by thermogravimetric analysis (TGA), infrared spectroscopy (FTIR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). In addition, the magnetic measurements of the different obtained materials were carried out showing a variety of magnetic behaviors depending on the synthetic procedure.
Publisher version (URL)http://doi.org/10.1039/C4RA08065C
URIhttp://hdl.handle.net/10261/181611
DOIhttp://dx.doi.org/10.1039/c4ra08065c
E-ISSN2046-2069
Appears in Collections:(ICMM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.