Исследования магнитных наночастиц Mn-=SUB=-x-=/SUB=-Fe-=SUB=-3-x-=/SUB=-O-=SUB=-4-=/SUB=-@OA (0≤ x≤ 1.0) функционализированных олеиновой кислотой (ОА) для биомедицинских применений

Физика твердого тела Pub Date : 2023-01-01 DOI:10.21883/ftt.2023.08.56165.127

А.С. Камзин, N. Dogan, O.M. Dogan, В. Г. Семенов

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Abstract

Functionalization (or coverage) MNF is a unique tool for creating particles with the properties required for biomedical applications. Therefore, the study of the magnetic properties of coated MNCs is the most important task of our time. The effect of changes in the concentration of Mn ions on the properties of MnxFe3-xO4 nanoparticles coated with oleic acid (OA) MnxFe3-xO4@OA (where x = 0, 0.25, 0.5, 0.75 and 1.0) to create stabilized magnetic fluids for various applications is investigated. The synthesis of MnxFe3-xO4@OA MNPs was carried out by thermal decomposition using manganese-oleate and iron oleate. The properties and phase states of the obtained MNPs were studied by X-ray diffraction (XRD) and Mossbauer spectroscopy. To understand the behavior of MNCs in small magnetic fields during hyperthermic treatment, Mossbauer studies of MnxFe3-xO4@OA particles were carried out when a magnetic field with a strength of 1.7 kOe was applied. It is established that the thermal decomposition method makes it possible to obtain single-phase superparamagnetic particles promising for biomedical applications

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功能化(或覆盖)MNF是用于创建具有生物医学应用所需属性的粒子的独特工具。因此，研究涂层跨国公司的磁性是当前最重要的任务。研究了Mn离子浓度的变化对油酸(OA) MnxFe3-xO4@OA(其中x = 0、0.25、0.5、0.75和1.0)包覆MnxFe3-xO4纳米颗粒的性能的影响，以创建各种应用的稳定磁流体。以油酸锰和油酸铁为原料，采用热分解法制备MnxFe3-xO4@OA MNPs。用x射线衍射(XRD)和穆斯堡尔光谱(Mossbauer spectroscopy)研究了所得MNPs的性质和相态。为了了解MNCs在小磁场中的行为，在施加1.7 kOe强度的磁场时，对MnxFe3-xO4@OA颗粒进行了穆斯堡尔研究。研究表明，利用热分解方法可以制备出具有生物医学应用前景的单相超顺磁颗粒

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Физика твердого тела

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