Effect of zinc on structure, optical and magnetic properties and magnetic heating efficiency of Mn1-Zn Fe2O4 nanoparticles

Localized heat induction using magnetic nanoparticles under an alternating magnetic field is an emerging technology applied in areas including, cancer treatment, thermally activated drug release and remote activation of cell functions. To enhance the induction heating efficiency of magnetic nanoparticles, the intrinsic and extrinsic magnetic parameters influencing the heating efficiency of magnetic nanoparticles should be effectively engineered. This review covers the recent progress in the optimization of magnetic properties of spinel ferrite nanoparticles for efficient heat induction. The key materials factors for efficient magnetic heating including size, shape, composition, inter/intra particle interactions are systematically discussed, from the growth mechanism, process control to chemical and magnetic properties manipulation.

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Mechanism of magnetic heating in Mn-doped magnetite nanoparticles and the role of intertwined structural and magnetic properties

Nanoscale ◽

10.1039/c9nr03131f ◽

2019 ◽

Vol 11 (22) ◽

pp. 10896-10910 ◽

Cited By ~ 9

Author(s):

L. Del Bianco ◽

F. Spizzo ◽

G. Barucca ◽

M. R. Ruggiero ◽

S. Geninatti Crich ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetite Nanoparticles ◽

Heating Efficiency ◽

Magnetic Heating ◽

Structural And Magnetic Properties ◽

Mn Doped

The heating efficiency of an assembly of Mn-doped magnetite nanoparticles can be tuned so as to depend linearly on the non-superparamagnetic fraction.

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Monitoring of the Mechanism of Mn Ions Incorporation into Quantum Dots by Optical and EPR Spectroscopy

Photonics ◽

10.3390/photonics6040107 ◽

2019 ◽

Vol 6 (4) ◽

pp. 107

Author(s):

Yuriy G. Galyametdinov ◽

Dmitriy O. Sagdeev ◽

Andrey A. Sukhanov ◽

Violeta K. Voronkova ◽

Radik R. Shamilov

Keyword(s):

Electron Paramagnetic Resonance ◽

Magnetic Properties ◽

Luminescent Properties ◽

Manganese Concentration ◽

Manganese Ions ◽

Paramagnetic Resonance ◽

Synthesis Of Nanoparticles ◽

Zinc Sulfide Nanoparticles ◽

Optical And Magnetic Properties ◽

Electron Paramagnetic

Synthesis of nanoparticles doped with various ions can significantly expand their functionality. The conditions of synthesis exert significant influence on the distribution nature of doped ions and therefore the physicochemical properties of nanoparticles. In this paper, a correlation between the conditions of synthesis of manganese-containing cadmium sulfide or zinc sulfide nanoparticles and their optical and magnetic properties is analyzed. Electron paramagnetic resonance was used to study the distribution of manganese ions in nanoparticles and the intensity of interaction between them depending on the conditions of synthesis of nanoparticles, the concentration of manganese, and the type of initial semiconductor. The increase of manganese concentration is shown to result in the formation of smaller CdS-based nanoparticles. Luminescent properties of nanoparticles were studied. The 580 nm peak, which is typical for manganese ions, becomes more distinguished with the increase of their concentration and the time of synthesis.

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