Core-shell La1−xSrxMnO3 nanoparticles as colloidal mediators for magnetic fluid hyperthermia

Core-shell nanoparticles consisting of La0.75Sr0.25MnO3 cores covered by silica were synthesized by a procedure consisting of several steps, including the sol-gel method in the presence of citric acid and ethylene glycol, thermal and mechanical treatment, encapsulation employing tetraethoxysilane an...

Full description

Saved in:
Bibliographic Details
Published in:Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences Vol. 368; no. 1927; pp. 4389 - 4405
Main Authors: Pollert, E., Kaman, O., Veverka, P., Veverka, M., Maryško, M., Záv ta, K., Ka enka, M., Lukeš, I., Jendelová, P., Kašpar, P., Burian, M., Herynek, V.
Format: Journal Article
Language:English
Published: The Royal Society Publishing 28-09-2010
The Royal Society
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Core-shell nanoparticles consisting of La0.75Sr0.25MnO3 cores covered by silica were synthesized by a procedure consisting of several steps, including the sol-gel method in the presence of citric acid and ethylene glycol, thermal and mechanical treatment, encapsulation employing tetraethoxysilane and final separation by centrifugation in order to get the required size fraction. Morphological studies revealed well-separated particles that form a stable water suspension. Magnetic studies include magnetization measurements and investigation of the ferromagnetic-superparamagnetic-paramagnetic transition. Magnetic heating experiments in 'calorimetric mode' were used to determine the heating efficiency of the particles in water suspension and further employed for biological studies of extracellular and intracellular effects analysed by tests of viability.
Bibliography:istex:61CB6D010643B3805C5D14F518A9084BE852765D
ark:/67375/V84-67MHTDZ2-Z
ArticleID:rsta20100123
href:rsta20100123.pdf
Theme Issue 'Nanoparticles' compiled and edited by Nguyen T. K. Thanh, Simon Biggs and Jawwad A. Darr
ISSN:1364-503X
1471-2962
DOI:10.1098/rsta.2010.0123