Počet záznamů: 1

The magnetic and hyperthermia studies of bare and silica-coated La.sub.0.75./sub.Sr.sub.0.25./sub.MnO.sub.3./sub. nanoparticles

  1. 1.
    0367343 - FZU-D 2012 RIV NL eng J - Článek v odborném periodiku
    Kaman, Ondřej - Veverka, Pavel - Jirák, Zdeněk - Maryško, Miroslav - Knížek, Karel - Veverka, Miroslav - Kašpar, P. - Burian, M. - Šepelák, V. - Pollert, Emil
    The magnetic and hyperthermia studies of bare and silica-coated La0.75Sr0.25MnO3 nanoparticles.
    Journal of Nanoparticle Research. Roč. 13, č. 3 (2011), s. 1237-1252 ISSN 1388-0764
    Grant CEP: GA AV ČR KAN200200651
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: perovskite manganite * magnetic nanoparticles * hyperthermia * size distribution * synthesis * nanomedicine
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 3.287, rok: 2011

    The mag. nanoparticles of La0.75Sr0.25MnO3 perovskite manganite with a controlled size were prepared via sol–gel procedure,followed by thermal treatment and subsequent mechanical processing of the resulting raw product.The prepared materials were studied by the XRD and TEMmethods and probed by DC magnetic measurements.The nanoparticles of the mean crystallite sizes 11–40 nm exhibit T in the range of ≈310–347 K and the sample possessing 20-nmcrystalliteswas identified as the most suitable for hyperthermia experiments.In order to obtain a colloidally stable suspension and prevent toxic effects, the selected magnetic cores were further encapsulated into silica shell using tetraethoxysilane.The detailed studies were focused on the comparison of the raw product,the bare nanoparticles after mechanical processing and the silica-coated nanoparticles,dealing also with effects of size distribution and magnetic interactions.
    Trvalý link: http://hdl.handle.net/11104/0202058