ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The magnetite (Fe3O4) nanoparticles were prepared by coprecipitation of Fe3+ and Fe2+ withaqueous NaOH solution. The Fe3O4/polyaniline (PANI) magnetic composite nanoparticles withcore-shell structure with diameter of 30-50 nm were prepared via an in-situ polymerization ofaniline in aqueous solution containing Fe3O4 magnetic fluid. The inductive heat property ofFe3O4/polyaniline composite nanoparticles in an alternating current (AC) magnetic field wasinvestigated. The potential of Fe3O4/polyaniline nanoparticles was evaluated for localizedhyperthermia treatment of cancers. The saturation magnetization Ms and coercivity Hc of Fe3O4nanoparticles are 50.05 emu/g and 137 Oe respectively, the Fe3O4/polyaniline compositenanoparticles, 26.34 emu/g and 0 Oe. Exposed in the alternating current (AC) magnetic field for 29min, the temperatures of physiological saline suspension containing Fe3O4 nanoparticles orFe3O4/polyaniline composite nanoparticles are 63.6 ℃ and 52.4 ℃ respectively. TheFe3O4/polyaniline composite nanoparticles would be useful as good thermoseeds for localizedhyperthermia treatment of cancers
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.1189.pdf
Permalink