Аннотация:
A one-step ultrasonication technique for the preparation of magnetic metal (oxide) organic frameworks (MOFs) with a size of >135nm based on sodium alginate crosslinked with Ca2+ ions and maghemite (γ-Fe2O3) nanoparticles with sizes from 7 to 20nm was proposed. The MOFs were characterized by Mössbauer spectroscopy, TEM, magnetometry, and UV-VIS and IR spectroscopy. The grid (crosslinks) preliminarily formed by Ca2+ ions plays an important role in the stabilization of maghemite nanoparticles, and the resulting MOFs can be used as magnetic carriers in systems for hyperthermia and drug delivery.
Ключевые слова:
alginate, maghemite, ultrasonic dispersion, nanoparticles, metal (oxide) frameworks, magnetic liquid.
Реферативные базы данных:
Тип публикации:
Статья
Язык публикации: английский
Образец цитирования:
V. V. Spiridonov, M. I. Afanasov, L. A. Makarova, A. V. Sybachin, A. A. Yaroslavov, “A facile approach to prepare water-soluble magnetic metal (oxide) frameworks based on Na,Ca alginate and maghemite”, Mendeleev Commun., 31:3 (2021), 412–414