Nanodispersible ferromagnetic powder α-Fe synthesized from citrates of iron for medical applications

1Boshytska, NV
1I. M. Frantsevich Institute for Problems of Materials Sciences of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2018, 1:43-52
https://doi.org/10.15407/dopovidi2018.01.043
Section: Materials Science
Language: Ukrainian
Abstract: 

A nanodispersible ferromagnetic powder α-Fe with the complex of physical and chemical properties (phase composition, high specific surface, chemical stability in plasma of blood and tissue liquid, active dissolution in gastric juice, chemical cleanness) necessary for the use in medical aims is created. The method of low-temperature (350—400 °C) decomposition/renewal of salts of citrates in the environment of hydrogen allowed us to get a nanodispersible ferromagnetic powder α-Fe with the specific surface of 31.4 m2/g. Its physical and chemical stability in plasma of blood is higher, as compared to standard powders α-Fe 3.200.26 and carbonic-iron (6-09-3000-78). The high specific surface and magnetic properties allow us to recommend a ferromagnetic powder α-Fe as a magnetic basis in the creation of composition materials for medical applications.

Keywords: ferromagnetic powder, powder of iron, stability
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