Synthesis and characterization of silica-coated nanoparticles of magnetite
Hyperfine Interact
; 195(1/3): 265-274, Sept 26, 2009.
Article
in English
| Sec. Est. Saúde SP, SESSP-IBPROD, Sec. Est. Saúde SP, SESSP-IBACERVO
| ID: biblio-1063303
Responsible library:
BR78.1
Localization: BR78.1
ABSTRACT
Magnetic nanoparticles coated with silica have been subjected of extensive,and, in many aspects, also intensive investigations because of their potentialapplication in different technological fields, particularly in biomedicine. This work was conceived and is being carried out in two main parts (1) synthesis of the ferrimagnetic nanoparticles, specifically magnetite, and (2) coating these particles with tetraethyl orthosilicate (TEOS). The nanosized magnetite sample was preparedby the reductionprecipitation and the nanomagnetite particles were coated by the sol-gel method, based on the hydrolysis of tetraethyl orthosilicate (TEOS). The so obtained materials were characterized with powder X-ray diffraction (XRD), FTIR spectroscopy, saturation magnetization measurements, and 57Fe Mössbauer spectroscopy at room temperature.
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Collection:
National databases
/
Brazil
Database:
Sec. Est. Saúde SP
/
SESSP-IBACERVO
/
SESSP-IBPROD
Main subject:
Nanoparticles
/
Magnetite Nanoparticles
Language:
English
Journal:
Hyperfine Interact
Year:
2009
Document type:
Article
Institution/Affiliation country:
Instituto Butantan/BR