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Preparation of Silica‐Coated Lanthanum–Strontium Manganite Particles with Designable Curie Point, for Application in Hyperthermia Treatments
Author(s) -
Uskoković Vuk,
Kos̆ak Aljos̆a,
Drofenik Miha,
Drofenik Miha
Publication year - 2006
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2006.02065.x
Subject(s) - materials science , curie temperature , lanthanum manganite , strontium , manganite , stoichiometry , ceramic , magnetic hyperthermia , lanthanum , chemical engineering , magnetic nanoparticles , nanoparticle , nanotechnology , inorganic chemistry , composite material , condensed matter physics , ferromagnetism , chemistry , physics , electrode , engineering , electrolyte , nuclear physics
Silica‐coated lanthanum–strontium manganite particles with La 0.76 Sr 0.24 MnO 3+δ stoichiometric formula, exhibiting Curie temperature at ∼40°C, were prepared by using a traditional solid‐state method of synthesis of magnetic ceramic particles, followed by milling and a low‐temperature coating procedure in an aqueous alcoholic alkali medium. The properties of the obtained material establish it as a potential candidate for self‐regulated power‐absorbing and temperature‐controlling materials in hyperthermia treatments. Moreover, core‐comprising LaSr–manganites with different stoichiometries, ranging from La 0.5 Sr 0.5 MnO 3+δ to LaMnO 3+δ , were synthesized, with magnetic and structural properties examined thereof. Herein reported findings can potentially be used in the preparation of silica‐coated magnetic particles with designable Curie temperature, offering a wide range of possibilities of adapting the material to practical instrumental setups in drug delivery and hyperthermia treatments.